Android_小账本小结

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登录界面：支持登录、注册以及游客登录，单纯的小账本的话其实用不到这些个登录，单纯为了巩固学习知识。

尚未部署到服务器，账号等数据暂时保存在本地数据库中。

游客登陆：游客登录会直接跳到主页中，不影响使用。

注册和登录时会弹出自定义view的dialog，这时可能会有黑影，这个和默认的主题有关。参考我的这篇博客：https://www.cnblogs.com/XiaoGao128/p/12283918.html

登录有记住密码和自动登录两个选项。这两个选项通过SharedPreferences实现。具体参考我的这篇博客https://www.cnblogs.com/XiaoGao128/p/12268652.html

LogInActivity.java

package com.example.didida_corder; import androidx.appcompat.app.AlertDialog;
import androidx.appcompat.app.AppCompatActivity; import android.content.Intent;
import android.database.sqlite.SQLiteDatabase;
import android.os.Bundle;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.widget.Button;
import android.widget.CheckBox;
import android.widget.EditText;
import android.widget.Toast; import com.example.didida_corder.ToolClass.Login;
import com.example.didida_corder.ToolClass.SPUtils;
import com.example.didida_corder.ToolClass.SQLiteUserChager; public class LoginActivity extends AppCompatActivity implements View.OnClickListener {
private Button btn_log,btn_register,btn_defult;
private String nowusername;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_login2);
if (getIntent().getExtras()!=null)
if(getIntent().getExtras().get("refresh")!=null)
autoIn();
autoIn_2();
btn_log=findViewById(R.id.login_btn_log);
btn_register=findViewById(R.id.login_btn_regster);
btn_defult=findViewById(R.id.login_btn_defult);
btn_defult.setOnClickListener(this);
btn_log.setOnClickListener(this);
btn_register.setOnClickListener(this); }
public void autoIn(){
Bundle bundle=new Bundle();
bundle.putString("username",getIntent().getExtras().getString("username"));
bundle.putInt("type",1);
bundle.putInt("refresh",0);
Intent intent=new Intent(LoginActivity.this,MainActivity.class);
intent.putExtras(bundle);
startActivity(intent); }
public void autoIn_2(){
if ((Integer.parseInt(SPUtils.get(getApplicationContext(),"auto",222).toString())==1)){
Bundle bundle=new Bundle();
bundle.putString("username",SPUtils.get(getApplicationContext(),"username","222").toString());
bundle.putInt("type",0);
Log.d("autoin_2===========","");
Intent intent=new Intent(LoginActivity.this,MainActivity.class);
intent.putExtras(bundle);
startActivity(intent);
} }
@Override
public void onClick(View v) {
switch (v.getId()){
case R.id.login_btn_regster:{
final AlertDialog.Builder builder4=new AlertDialog.Builder(this);
LayoutInflater inflater=LayoutInflater.from(this);
View view=inflater.inflate(R.layout.layout_register,null);
Button button=view.findViewById(R.id.adm_btn);
final EditText editText=view.findViewById(R.id.adm_et);
final EditText editText1=view.findViewById(R.id.adm_et2);
final EditText et_confirm=view.findViewById(R.id.adm_et_confirm);
final EditText et_name=view.findViewById(R.id.adm_name);
final AlertDialog alertDialog=builder4.setView(view).show();
alertDialog.getWindow().setBackgroundDrawableResource(android.R.color.transparent);
button.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
if(editText.getText().toString().equals("")||editText1.getText().toString().equals("")||et_confirm.getText().toString().equals("")||et_name.getText().toString().equals("")) {
Toast.makeText(getApplicationContext(), "请补全信息！", Toast.LENGTH_LONG).show();
}else if (new Login(getApplicationContext()).isInstance(editText.getText().toString())){
Toast.makeText(getApplicationContext(),"用户名重复！请重新输入！",Toast.LENGTH_SHORT).show();
editText.setText("");
} else {
SPUtils.put(getApplicationContext(),"username",editText.getText().toString()).
put(getApplicationContext(),"password",editText1.getText().toString()).
put(getApplicationContext(),"name",et_name.getText().toString()); SQLiteUserChager sc=new SQLiteUserChager(getApplicationContext(),"Userr",null,1);
SQLiteDatabase db= sc.getWritableDatabase();
db.execSQL("insert into user values(?,?,?)",new String[]{et_name.getText().toString(),editText.getText().toString(),editText1.getText().toString()});
nowusername=editText.getText().toString();
Bundle bundle=new Bundle();
bundle.putString("username",nowusername);
bundle.putInt("type",0);
Intent intent=new Intent(LoginActivity.this,MainActivity.class);
intent.putExtras(bundle);
startActivity(intent);
alertDialog.dismiss();
Toast.makeText(getApplicationContext(), "注册成功！", Toast.LENGTH_SHORT).show();
}
}
});
break;
} case R.id.login_btn_log:{
final AlertDialog.Builder builder4=new AlertDialog.Builder(this);
LayoutInflater inflater=LayoutInflater.from(this);
View view=inflater.inflate(R.layout.layout_admin,null);
Button button=view.findViewById(R.id.adm_btn);
final EditText editText=view.findViewById(R.id.adm_et);
final EditText editText1=view.findViewById(R.id.adm_et2);
final CheckBox rb_rember=view.findViewById(R.id.admin_radio_remeber);
final CheckBox rb_auto=view.findViewById(R.id.admin_radio_autoin);
Log.d("----------",SPUtils.get(this,"rember",3).toString());
if (Integer.parseInt(SPUtils.get(this,"rember",3).toString())==1){
editText.setText(SPUtils.get(this,"username","111").toString());
editText1.setText(SPUtils.get(this,"password","111").toString());
}
final AlertDialog alertDialog=builder4.setView(view).show();
alertDialog.getWindow().setBackgroundDrawableResource(android.R.color.transparent);
button.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
if(editText.getText().toString().equals("")||editText1.getText().toString().equals("")) {
Toast.makeText(getApplicationContext(), "请补全信息！", Toast.LENGTH_LONG).show();
}else {
if (new Login(getApplicationContext()).sentenceLog(editText.getText().toString(),editText1.getText().toString()))
{
SPUtils.put(getApplicationContext(),"username",editText.getText().toString()).
put(getApplicationContext(),"password",editText1.getText().toString());
if (rb_rember.isChecked()) SPUtils.put(getApplicationContext(),"rember",1);
else SPUtils.put(getApplicationContext(),"rember",0);
if (rb_auto.isChecked()) SPUtils.put(getApplicationContext(),"auto",1);
else SPUtils.put(getApplicationContext(),"auto",0);
Toast.makeText(getApplicationContext(), "登陆成功！", Toast.LENGTH_LONG).show();
nowusername=editText.getText().toString();
Bundle bundle=new Bundle();
bundle.putString("username",nowusername);
bundle.putInt("type",0);
Intent intent=new Intent(getApplicationContext(),MainActivity.class);
intent.putExtras(bundle);
startActivity(intent);
alertDialog.dismiss();
}
else Toast.makeText(getApplicationContext(),"用户名或密码错误！",Toast.LENGTH_SHORT).show();
}
}
}); break;
}
case R.id.login_btn_defult:{
nowusername="defult";
Bundle bundle=new Bundle();
bundle.putString("username",nowusername);
bundle.putInt("type",1);
Intent intent=new Intent(LoginActivity.this,MainActivity.class);
intent.putExtras(bundle);
startActivity(intent);
break;
} } }
}

activity_log2.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="@drawable/wolf"
android:orientation="vertical"
android:gravity="center"
tools:context=".LoginActivity">
<Button
android:id="@+id/login_btn_log"
android:layout_width="270dp"
android:layout_height="50dp"
android:background="@drawable/riple_btn_pink"
android:text="登录"
android:textColor="#FFFFFF"
android:layout_marginBottom="30dp"
android:textSize="15dp"></Button>
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="horizontal">
<Button
android:id="@+id/login_btn_regster"
android:layout_width="90dp"
android:layout_height="wrap_content"
android:background="@drawable/riple_btn_pink"
android:text="注册"
android:textColor="#FFFFFF"
android:layout_marginTop="20dp"
android:layout_marginRight="60dp"
android:textSize="15dp"></Button>
<Button
android:id="@+id/login_btn_defult"
android:layout_width="120dp"
android:layout_height="wrap_content"
android:background="@drawable/riple_btn_pink"
android:text="游客登陆"
android:textColor="#FFFFFF"
android:layout_marginTop="20dp"
android:textSize="15dp"></Button>
</LinearLayout>
</LinearLayout>

页面：这个app预计分为四个页面，分别用四个fragment实现。

MainActivity.java

package com.example.didida_corder; import androidx.annotation.RequiresApi;
import androidx.appcompat.app.AppCompatActivity;
import androidx.drawerlayout.widget.DrawerLayout;
import androidx.fragment.app.Fragment;
import androidx.fragment.app.FragmentManager;
import androidx.viewpager.widget.ViewPager; import android.app.Dialog;
import android.app.FragmentTransaction;
import android.content.Intent;
import android.database.sqlite.SQLiteDatabase;
import android.os.Build;
import android.os.Bundle;
import android.util.Log;
import android.view.Gravity;
import android.view.LayoutInflater;
import android.view.View;
import android.view.Window;
import android.view.WindowManager;
import android.widget.Adapter;
import android.widget.Button;
import android.widget.ImageView;
import android.widget.LinearLayout;
import android.widget.RadioButton;
import android.widget.RadioGroup;
import android.widget.RelativeLayout;
import android.widget.TextView; import com.example.didida_corder.ToolClass.SQLiteUserChager; import java.util.List; public class MainActivity extends AppCompatActivity implements ViewPager.OnPageChangeListener, RadioGroup.OnCheckedChangeListener,
View.OnClickListener, InOutFragment.IOinput { private ViewPager viewPager;
private TextView textView;
private ImageView my_right_menu;
private RadioGroup radioGroup;
private DrawerLayout drawerLayout;
private RadioButton radioButton_crod;
private RadioButton radioButton_inout;
private RadioButton radioButton_myitem;
private int PAGE_NUM = 3,ii=0;
private final int PAGE_CORD = 0;
private final int PAGE_INOUT = 1;
private final int PAGE_MY = 2;
private MyFragPageAdapter myFragPageAdapter;
private MyFragment myFragment;
private FragmentManager fragmentManager;
private String nowusername="defult";
private int type;
private boolean isrefresh=false;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
//从login传入参数
Bundle bundle=getIntent().getExtras();
nowusername=bundle.getString("username");
type=bundle.getInt("type");
Log.d("userame===========",nowusername);
fragmentManager = getSupportFragmentManager();
myFragPageAdapter = new MyFragPageAdapter(getSupportFragmentManager(),nowusername);
myFragment = (MyFragment) fragmentManager.findFragmentById(R.id.fg_left_menu);
myFragment.sentenceAndSet(nowusername,type);
bindViews();
if (bundle.getInt("refresh")!=1){
radioButton_inout.setChecked(true);
radioButton_inout.setBackground(getDrawable(R.drawable.money_2));
}else {
radioButton_crod.setChecked(true);
radioButton_crod.setBackground(getDrawable(R.drawable.hostory_1));
}initLeftMenu();
} private void bindViews() {
radioButton_crod = findViewById(R.id.main_rd_cord);
radioButton_inout = findViewById(R.id.main_rd_inout);
radioButton_myitem = findViewById(R.id.main_rd_my);
radioGroup = findViewById(R.id.main_radio_group);
radioGroup.setOnCheckedChangeListener(this);
viewPager = findViewById(R.id.main_viewpager);
viewPager.setAdapter(myFragPageAdapter);
viewPager.addOnPageChangeListener(this);
viewPager.setCurrentItem(PAGE_INOUT);
drawerLayout = findViewById(R.id.main_drawlayout);
} public void initLeftMenu() {
my_right_menu = findViewById(R.id.main_leftmenu);
my_right_menu.setOnClickListener(this);
} @Override
public void onPageScrolled(int position, float positionOffset, int positionOffsetPixels) { } @Override
public void onPageSelected(int position) { } @Override
public void onPageScrollStateChanged(int state) {
if (state == 2) {
switch (viewPager.getCurrentItem()) {
case PAGE_CORD:
radioButton_crod.setChecked(true);
radioButton_inout.setBackground(getDrawable(R.drawable.money));
radioButton_crod.setBackground(getDrawable(R.drawable.hostory_1));
radioButton_myitem.setBackground(getDrawable(R.drawable.society));
//new 可解决翻页时 No adapter attached; skipping layout
viewPager.setAdapter(new MyFragPageAdapter(getSupportFragmentManager(),nowusername));
break;
case PAGE_INOUT:
radioButton_inout.setChecked(true);
radioButton_inout.setBackground(getDrawable(R.drawable.money_2));
radioButton_crod.setBackground(getDrawable(R.drawable.hostory));
radioButton_myitem.setBackground(getDrawable(R.drawable.society));
break;
case PAGE_MY:
radioButton_myitem.setChecked(true);
radioButton_inout.setBackground(getDrawable(R.drawable.money));
radioButton_crod.setBackground(getDrawable(R.drawable.hostory));
radioButton_myitem.setBackground(getDrawable(R.drawable.society_1));
break;
}
}
} @Override
public void onCheckedChanged(RadioGroup group, int checkedId) {
switch (checkedId) {
case R.id.main_rd_cord: {
viewPager.setCurrentItem(PAGE_CORD);
//new 可解决翻页时 No adapter attached; skipping layout
radioButton_inout.setBackground(getDrawable(R.drawable.money));
radioButton_crod.setBackground(getDrawable(R.drawable.hostory_1));
radioButton_myitem.setBackground(getDrawable(R.drawable.society));
Log.d("mainact------username",nowusername);
viewPager.setAdapter(new MyFragPageAdapter(getSupportFragmentManager(),nowusername));
break;
}
case R.id.main_rd_inout: {
viewPager.setCurrentItem(PAGE_INOUT);
radioButton_inout.setBackground(getDrawable(R.drawable.money_2));
radioButton_crod.setBackground(getDrawable(R.drawable.hostory));
radioButton_myitem.setBackground(getDrawable(R.drawable.society));
break;
}
case R.id.main_rd_my: {
viewPager.setCurrentItem(PAGE_MY);
radioButton_inout.setBackground(getDrawable(R.drawable.money));
radioButton_crod.setBackground(getDrawable(R.drawable.hostory));
radioButton_myitem.setBackground(getDrawable(R.drawable.society_1));
break;
}
}
} @Override
public void onClick(View v) {
drawerLayout.openDrawer(Gravity.LEFT);
} @RequiresApi(api = Build.VERSION_CODES.N)
@Override
public void send(String s1, String s2) {
Dialog mCameraDialog = new Dialog(this, R.style.BottomDialog);
RelativeLayout root = (RelativeLayout) LayoutInflater.from(this).inflate(
R.layout.layout_fragment_calcul, null);
CalculFragment calculFragment = new CalculFragment(root,MainActivity.this,s1,s2,nowusername,mCameraDialog);
root = calculFragment.bindandset(root);
mCameraDialog.setContentView(root);
Window dialogWindow = mCameraDialog.getWindow();
dialogWindow.setGravity(Gravity.BOTTOM);
dialogWindow.setWindowAnimations(R.style.DialogAnimation); // 添加动画
WindowManager.LayoutParams lp = dialogWindow.getAttributes(); // 获取对话框当前的参数值
lp.x = 0; // 新位置X坐标
lp.y = 0; // 新位置Y坐标
lp.width = (int) getResources().getDisplayMetrics().widthPixels; // 宽度
root.measure(0, 0);
lp.height = root.getMeasuredHeight();
// lp.alpha = 9f; // 透明度
dialogWindow.setAttributes(lp);
mCameraDialog.show(); } }

activity_main.xml

<?xml version="1.0" encoding="utf-8"?>
<androidx.drawerlayout.widget.DrawerLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:id="@+id/main_drawlayout"
android:layout_width="match_parent"
android:layout_height="match_parent"> <RelativeLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#FAFAFA"
android:orientation="horizontal"
tools:context=".MainActivity">
<LinearLayout
android:id="@+id/main_toplinear"
android:layout_width="match_parent"
android:layout_height="50dp"
android:background="#FFFFFF"
android:gravity="center"
android:orientation="horizontal"> <ImageView
android:id="@+id/main_leftmenu"
android:layout_width="35dp"
android:layout_height="35dp"
android:layout_marginLeft="27dp"
android:src="@drawable/sanxian"></ImageView> <LinearLayout
android:layout_width="match_parent"
android:layout_height="70dp"
android:gravity="center"> <TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="滴滴嗒小账本"
android:textColor="#B3000000"
android:textSize="20dp"></TextView>
</LinearLayout> <ImageView
android:layout_width="35dp"
android:layout_height="35dp"
android:layout_marginRight="27dp"></ImageView>
</LinearLayout> <View
android:layout_width="match_parent"
android:layout_height="0.5dp"
android:layout_below="@+id/main_toplinear"
android:background="#232"></View> <View
android:layout_width="match_parent"
android:layout_height="0.5dp"
android:layout_above="@+id/main_radio_group"
android:background="#232"></View> <RadioGroup
android:id="@+id/main_radio_group"
android:layout_width="match_parent"
android:layout_height="70dp"
android:background="#00F8A4B4"
android:layout_alignParentBottom="true"
android:gravity="center"
android:orientation="horizontal"> <RadioButton
android:id="@+id/main_rd_cord"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:layout_weight="1"
android:button="@null"
android:background="@drawable/hostory"
android:scaleX="0.2"
android:scaleY="0.3"
android:gravity="center"
android:textColor="#5FB1D1"
android:textSize="25dp"></RadioButton> <RadioButton
android:id="@+id/main_rd_inout"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:layout_weight="1"
android:button="@null"
android:gravity="center"
android:background="@drawable/money"
android:scaleX="0.2"
android:scaleY="0.3"
android:textColor="#5FB1D1"
android:textSize="25dp"></RadioButton> <RadioButton
android:id="@+id/main_rd_my"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:layout_weight="1"
android:button="@null"
android:gravity="center"
android:background="@drawable/society"
android:scaleX="0.2"
android:scaleY="0.3"
android:textColor="#5FB1D1"
android:textSize="25dp"></RadioButton>
</RadioGroup> <androidx.viewpager.widget.ViewPager
android:id="@+id/main_viewpager"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_above="@id/main_radio_group"
android:layout_below="@+id/main_toplinear"></androidx.viewpager.widget.ViewPager>
</RelativeLayout>
<fragment
android:id="@+id/fg_left_menu"
class="com.example.didida_corder.MyFragment"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:layout_gravity="start"
tools:layout="@layout/layout_myfragment"
></fragment>
</androidx.drawerlayout.widget.DrawerLayout>

其中，三个主页面放在一个viewPager中。

InOutFragment（收支页面，记录收支信息）

收支页面分为两个大项十一个小项

其具体布局如下：

其他十一个小项默认隐藏，在点击相应按钮后相应小项会显示出来：

点击小项后会从下方弹出一个输入框，它相当于一个小型计算器，具体参考我的这两篇博客：

https://www.cnblogs.com/XiaoGao128/p/12263125.html

https://www.cnblogs.com/XiaoGao128/p/12245459.html

其中点击时间按钮可弹出一个DatePicker设置日期，设置完成后将时间、收支、类型、金额等存储到SQLite中。

因为viewPager会复用缓存的Fragment的view，所以数据更新比较麻烦，为了能够在输入完成之后滑到CordFragment时能够正确的显示，我在划过去时new了一个adapter，这样会导致一定的资源浪费，但暂时还没找到相对好的解决方法。

InOutFragment.java

layout_inout.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical" android:layout_width="match_parent"
android:background="#FFFFFF"
android:layout_height="match_parent">
<LinearLayout
android:layout_marginTop="20dp"
android:layout_width="match_parent"
android:layout_height="90dp"
android:layout_weight="1"
>
<ImageView
android:id="@+id/inout_shuidian"
android:layout_width="70dp"
android:layout_height="70dp"
android:src="@drawable/shuidian_hong"
android:layout_weight="1"
android:visibility="invisible"
></ImageView>
<ImageView
android:id="@+id/inout_canyin"
android:layout_width="70dp"
android:layout_height="70dp"
android:src="@drawable/cnayin_hong"
android:layout_weight="1"
android:visibility="invisible"
></ImageView>
</LinearLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="90dp"
android:layout_weight="1"
>
<ImageView
android:id="@+id/inout_yiwu"
android:layout_width="70dp"
android:layout_height="70dp"
android:src="@drawable/yiwu_hong"
android:layout_weight="1"
android:visibility="invisible"
></ImageView>
<ImageView
android:id="@+id/inout_in"
android:layout_width="70dp"
android:layout_height="70dp"
android:src="@drawable/zhichu_hei"
android:layout_weight="1"
></ImageView>
<ImageView
android:id="@+id/inout_qita"
android:layout_width="70dp"
android:layout_height="70dp"
android:src="@drawable/qita_hong"
android:layout_weight="1"
android:visibility="invisible"
></ImageView>
</LinearLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="90dp"
android:layout_weight="1"
>
<ImageView
android:id="@+id/inout_chuxing"
android:layout_width="70dp"
android:layout_height="70dp"
android:src="@drawable/jiaotong_hong"
android:layout_weight="1"
android:visibility="invisible"
></ImageView>
<ImageView
android:id="@+id/inout_dianzi"
android:layout_width="70dp"
android:layout_height="70dp"
android:src="@drawable/dianzi_hong"
android:layout_weight="1"
android:visibility="invisible"
></ImageView>
<ImageView
android:id="@+id/inout_yule"
android:layout_width="70dp"
android:layout_height="70dp"
android:src="@drawable/yule_hong"
android:layout_weight="1"
android:visibility="invisible"
></ImageView>
</LinearLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="90dp"
android:layout_weight="1"
>
<ImageView
android:id="@+id/inout_gongzi"
android:layout_width="70dp"
android:layout_height="70dp"
android:src="@drawable/gongzi_hong"
android:layout_weight="1"
android:visibility="invisible"
></ImageView>
<ImageView
android:id="@+id/inout_out"
android:layout_width="70dp"
android:layout_height="70dp"
android:src="@drawable/shouru_hei"
android:layout_weight="1"
></ImageView>
<ImageView
android:id="@+id/inout_jianqian"
android:layout_width="70dp"
android:layout_height="70dp"
android:src="@drawable/jiandao_hong"
android:layout_weight="1"
android:visibility="invisible"
></ImageView>
</LinearLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="90dp"
android:layout_weight="1"
>
<ImageView
android:id="@+id/inout_jianzhi"
android:layout_width="70dp"
android:layout_height="70dp"
android:src="@drawable/jianzhi_hong"
android:layout_weight="1"
android:visibility="invisible"
></ImageView>
<ImageView
android:id="@+id/inout_hongbao"
android:layout_width="70dp"
android:layout_height="70dp"
android:src="@drawable/hongbao_hong"
android:layout_weight="1"
android:visibility="invisible"
></ImageView>
</LinearLayout> </LinearLayout>

下方弹出的输入页面：

CalculFragment

package com.example.didida_corder; import android.app.AlertDialog;
import android.app.DatePickerDialog;
import android.app.Dialog;
import android.content.Context;
import android.icu.util.Calendar;
import android.icu.util.ChineseCalendar;
import android.os.Build;
import android.os.Bundle;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.Button;
import android.widget.DatePicker;
import android.widget.EditText;
import android.widget.RelativeLayout;
import android.widget.TextView;
import android.widget.Toast; import androidx.annotation.NonNull;
import androidx.annotation.Nullable;
import androidx.annotation.RequiresApi;
import androidx.fragment.app.Fragment; //import java.util.Calendar;
import com.example.didida_corder.ToolClass.Login; import java.util.Date;
import java.util.zip.Inflater; import static java.lang.Math.sqrt; public class CalculFragment implements InOutFragment.IOinput{
private String inout,type,number,date,info;
private Button btn_0, btn_1, btn_2, btn_3, btn_4, btn_5, btn_6, btn_7, btn_8, btn_9, btn_add,
btn_del, btn_mul, btn_ac, btn_sub, btn_equal, btn_divide, btn_date,
btn_point;
private TextView tv_cord, tv_calcul;
private EditText et_tell;
private double init = 0;//当前输入数据
private char calcul = '#';//运算符
private double nowsum = 0;//当前运算结果
private int pointnum = 0;//小数点输入次数
private RelativeLayout root;
private Context context;
private String username;
private Dialog dialog;
boolean isaheadchar = false, isnowpoint = false, isaheadequal = false, isaheadsqr = false; //isaheadchar: 是否输入过运算符
//isnowpoint：小数点状态
//isaheadequal：前一个运算符是否为=
//isaheadsqr：前一个运算符是否为平方，主要为setText方便而设置
@RequiresApi(api = Build.VERSION_CODES.N)
public CalculFragment(RelativeLayout root, Context context,String inout,String type,String username,Dialog dialog) {
this.root = root;
this.context = context;
this.inout=inout;
this.type=type;
this.dialog=dialog;
Log.d("=========clacu",username);
this.username=username;
bindandset(this.root);
} @RequiresApi(api = Build.VERSION_CODES.N)
public RelativeLayout bindandset(View view) {
btn_0 = root.findViewById(R.id.calcul_btn_0);
btn_1 = root.findViewById(R.id.calcul_btn_1);
btn_2 = root.findViewById(R.id.calcul_btn_2);
btn_3 = root.findViewById(R.id.calcul_btn_3);
btn_4 = root.findViewById(R.id.calcul_btn_4);
btn_5 = root.findViewById(R.id.calcul_btn_5);
btn_6 = root.findViewById(R.id.calcul_btn_6);
btn_7 = root.findViewById(R.id.calcul_btn_7);
btn_8 = root.findViewById(R.id.calcul_btn_8);
btn_9 = root.findViewById(R.id.calcul_btn_9);
btn_date = root.findViewById(R.id.calcul_btn_date);
btn_point = root.findViewById(R.id.calcul_btn_point);
btn_sub = root.findViewById(R.id.calcul_btn_sub);
btn_ac = root.findViewById(R.id.calcul_btn_ac);
btn_add = root.findViewById(R.id.calcul_btn_add);
et_tell=root.findViewById(R.id.tv_tell);
btn_equal = root.findViewById(R.id.calcul_btn_equal);
btn_del = root.findViewById(R.id.calcul_btn_del);
btn_divide = root.findViewById(R.id.calcul_btn_divide);
btn_mul = root.findViewById(R.id.calcul_btn_multiply);
tv_calcul = root.findViewById(R.id.tv_calcul);
tv_cord = root.findViewById(R.id.tv_cord);
tv_calcul.setText("");
tv_cord.setText("");
btn_0.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
if (isaheadequal || isaheadchar) {
btn_equal.setText("=");
} else tv_calcul.setText(tv_calcul.getText() + "0");
init = Double.parseDouble((String) tv_calcul.getText());
isaheadequal = false;
isaheadchar = false;
}
});
btn_1.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
if (isaheadequal || isaheadchar) {
btn_equal.setText("=");
tv_calcul.setText("1");
} else tv_calcul.setText(tv_calcul.getText() + "1");
init = Double.parseDouble((String) tv_calcul.getText());
isaheadequal = false;
isaheadchar = false;
}
});
btn_2.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
if (isaheadequal || isaheadchar) {
btn_equal.setText("=");
tv_calcul.setText("2");
} else tv_calcul.setText(tv_calcul.getText() + "2");
init = Double.parseDouble((String) tv_calcul.getText());
isaheadequal = false;
isaheadchar = false;
}
});
btn_3.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
if (isaheadequal || isaheadchar) {
btn_equal.setText("=");
tv_calcul.setText("3");
} else tv_calcul.setText(tv_calcul.getText() + "3");
init = Double.parseDouble((String) tv_calcul.getText());
isaheadequal = false;
isaheadchar = false;
}
});
btn_4.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
if (isaheadequal || isaheadchar) {
btn_equal.setText("=");
tv_calcul.setText("4");
} else tv_calcul.setText(tv_calcul.getText() + "4");
init = Double.parseDouble((String) tv_calcul.getText());
isaheadequal = false;
isaheadchar = false;
}
});
btn_5.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
if (isaheadequal || isaheadchar) {
btn_equal.setText("=");
tv_calcul.setText("5");
} else tv_calcul.setText(tv_calcul.getText() + "5");
init = Double.parseDouble((String) tv_calcul.getText());
isaheadequal = false;
isaheadchar = false;
}
});
btn_6.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
if (isaheadequal || isaheadchar) {
btn_equal.setText("=");
tv_calcul.setText("6");
} else tv_calcul.setText(tv_calcul.getText() + "6");
init = Double.parseDouble((String) tv_calcul.getText());
isaheadequal = false;
isaheadchar = false;
}
});
btn_7.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
if (isaheadequal || isaheadchar) {
btn_equal.setText("=");
tv_calcul.setText("7");
} else tv_calcul.setText(tv_calcul.getText() + "7");
init = Double.parseDouble((String) tv_calcul.getText());
isaheadequal = false;
isaheadchar = false;
}
});
btn_8.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
if (isaheadequal || isaheadchar) {
btn_equal.setText("=");
tv_calcul.setText("8");
} else tv_calcul.setText(tv_calcul.getText() + "8");
init = Double.parseDouble((String) tv_calcul.getText());
isaheadequal = false;
isaheadchar = false;
}
});
btn_9.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
if (isaheadequal || isaheadchar) {
btn_equal.setText("=");
tv_calcul.setText("9");
} else tv_calcul.setText(tv_calcul.getText() + "9");
init = Double.parseDouble((String) tv_calcul.getText());
isaheadequal = false;
isaheadchar = false;
}
});
btn_add.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) { switch (calcul) {
case '+': {
nowsum += init;
break;
}
case '-': {
nowsum -= init; break;
}
case '*': {
nowsum *= init; break;
}
case '/': {
if (init != 0) {
nowsum /= init;
} else
break;
}
default: {
nowsum += init;
}
}
if (isaheadchar) {
if (!isaheadsqr)
tv_cord.setText(tv_cord.getText().subSequence(0, tv_cord.getText().length() - 1));
calcul = '+'; }
if (!isaheadequal) {
if (!isaheadchar)
tv_cord.setText(tv_cord.getText() + "" + init + "+");
else tv_cord.setText(tv_cord.getText() + "+");
tv_calcul.setText("" + nowsum);
} else {
tv_cord.setText("" + nowsum + "+");
tv_calcul.setText("" + nowsum);
}
calcul = '+';
init = 0;
isaheadequal = false;
isaheadchar = true;
isaheadsqr = false;
isnowpoint = false;
pointnum = 0;
}
});
btn_sub.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
if (isaheadequal) {
tv_cord.setText("");
}
switch (calcul) {
case '+': {
nowsum += init; break;
}
case '-': {
nowsum -= init; break;
}
case '*': {
nowsum *= init;
break;
}
case '/': {
if (init != 0) {
nowsum /= init;
} else
break;
}
case '士': {
nowsum *= -1;
break;
}
case '%': {
nowsum %= init;
break;
}
default: {
nowsum += init;
}
}
if (isaheadchar) {
if (!isaheadsqr)
tv_cord.setText(tv_cord.getText().subSequence(0, tv_cord.getText().length() - 1));
calcul = '-';
}
if (!isaheadequal) {
if (!isaheadchar)
tv_cord.setText(tv_cord.getText() + "" + init + "-");
else tv_cord.setText(tv_cord.getText() + "-");
tv_calcul.setText("" + nowsum);
} else {
tv_cord.setText("" + nowsum + "-");
tv_calcul.setText("" + nowsum);
}
calcul = '-';
init = 0;
isaheadequal = false;
isaheadchar = true;
isaheadsqr = false;
isnowpoint = false;
pointnum = 0;
}
});
btn_mul.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
if (isaheadequal) {
tv_cord.setText("");
}
switch (calcul) {
case '+': {
nowsum += init;
break;
}
case '-': {
nowsum -= init;
break;
}
case '*': {
nowsum *= init;
break;
}
case '/': {
if (init != 0) {
nowsum /= init;
} else
break;
}
case '士': {
nowsum *= -1;
break;
}
case '%': {
nowsum %= init;
break;
}
default: {
nowsum += init;
}
}
//if ptr calcul is calcul change it
if (isaheadchar) {
if (!isaheadsqr)
tv_cord.setText(tv_cord.getText().subSequence(0, tv_cord.getText().length() - 1));
calcul = '*';
}
if (!isaheadequal) {
if (!isaheadchar)
tv_cord.setText(tv_cord.getText() + "" + init + "×");
else tv_cord.setText(tv_cord.getText() + "×");
tv_calcul.setText("" + nowsum);
} else {
tv_cord.setText("" + nowsum + "×");
tv_calcul.setText("" + nowsum);
}
calcul = '*';
init = 0;
isaheadchar = true;
isaheadequal = false;
isaheadsqr = false;
isnowpoint = false;
pointnum = 0;
}
});
btn_divide.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
if (isaheadequal) {
tv_cord.setText("");
}
switch (calcul) {
case '+': {
nowsum += init;
break;
}
case '-': {
nowsum -= init;
break;
}
case '*': {
nowsum *= init;
break;
}
case '/': {
if (init != 0) {
nowsum /= init;
} else
break;
}
case '士': {
nowsum *= -1;
break;
}
case '%': {
nowsum %= init;
break;
}
default: {
nowsum += init;
}
}
if (isaheadchar) {
if (!isaheadsqr)
tv_cord.setText(tv_cord.getText().subSequence(0, tv_cord.getText().length() - 1));
calcul = '/';
}
if (!isaheadequal) {
if (!isaheadchar)
tv_cord.setText(tv_cord.getText() + "" + init + "÷");
else tv_cord.setText(tv_cord.getText() + "÷");
tv_calcul.setText("" + nowsum);
} else { tv_cord.setText("" + nowsum + "÷");
tv_calcul.setText("" + nowsum);
}
calcul = '/';
init = 0;
isaheadequal = false;
isaheadchar = true;
isaheadsqr = false;
isnowpoint = false;
pointnum = 0;
}
});
btn_point.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
tv_calcul.setText(tv_calcul.getText() + ".");
isnowpoint = true;
}
});
btn_equal.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
if (isaheadequal) {
tv_cord.setText("");
}
switch (calcul) {
case '+': {
nowsum += init;
break;
}
case '-': {
nowsum -= init;
break;
}
case '*': {
nowsum *= init; break;
}
case '/': {
if (init != 0) {
nowsum /= init;
} else
break;
}
case '士': {
nowsum *= -1;
break;
}
case '%': {
nowsum %= init;
break;
}
default: {
nowsum = init;
}
}
if (!isaheadsqr)
tv_cord.setText(tv_cord.getText() + "" + init + "=");
else tv_cord.setText(tv_cord.getText() + "=");
tv_calcul.setText("" + nowsum);
calcul = '#';
init = 0; if (btn_equal.getText().toString().equals("完成")){
new Login(context).dataIn(username,inout,type,tv_calcul.getText().toString(),btn_date.getText().toString(),et_tell.getText().toString());
dialog.dismiss();
Log.d("=-=-=-=----------------","传输完成"+username);
}
btn_equal.setText("完成");
isaheadequal = true;
isaheadsqr = false;
isnowpoint = false;
pointnum = 0;
}
});
btn_ac.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
tv_calcul.setText("");
tv_cord.setText("");
calcul = '#';
init = 0;
nowsum = 0;
isaheadchar = false;
isnowpoint = false;
isaheadequal = false;
isaheadsqr = false;
pointnum = 0;
}
});
btn_del.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
if (tv_calcul.getText().length() != 0)
tv_calcul.setText(tv_calcul.getText().subSequence(0, tv_calcul.getText().length() - 1));
}
});
final Calendar calendar = Calendar.getInstance();
String time = "" + calendar.get(Calendar.YEAR) + "/" + (calendar.get(Calendar.MONTH) + 1) + "/" + calendar.get(Calendar.DAY_OF_MONTH);
btn_date.setText(time);
btn_date.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Calendar calendar1=ChineseCalendar.getInstance();
DatePickerDialog datePickerDialog=new DatePickerDialog(context, AlertDialog.THEME_HOLO_LIGHT,
new DatePickerDialog.OnDateSetListener() {
@Override
public void onDateSet(DatePicker view, int year, int month, int dayOfMonth) {
btn_date.setText(""+year+"/"+(month+1)+"/"+dayOfMonth);
}
}, calendar1.get(Calendar.YEAR), calendar1.get(Calendar.MONTH), calendar1.get(Calendar.DAY_OF_MONTH));
datePickerDialog.show();
}
});
return (RelativeLayout) view;
} @Override
public void send(String s1, String s2) {
this.inout=s1;
this.type=s2;
Log.d("inout=================","完成");
} }

layout_fragment_calcul

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="500dp"
>
<EditText
android:id="@+id/tv_tell"
android:layout_width="match_parent"
android:layout_height="50dp"
android:background="@drawable/btn_nocornor_3"
android:textColor="#212"
android:gravity="right"
android:hint="备注"
android:textColorHint="#B1A1A1"
android:textSize="30dp"></EditText>
<TextView
android:id="@+id/tv_cord"
android:layout_width="match_parent"
android:layout_height="50dp"
android:layout_below="@id/tv_tell"
android:background="@drawable/riple_btn_nocorner_3"
android:gravity="right"
android:textColor="#212"
android:hint="0"
android:textColorHint="#B1A1A1"
android:textSize="30dp"></TextView> <TextView
android:id="@+id/tv_calcul"
android:layout_width="match_parent"
android:layout_height="50dp"
android:layout_below="@+id/tv_cord"
android:background="@drawable/riple_btn_nocorner_3"
android:textColor="#212"
android:gravity="right"
android:hint="支出"
android:textColorHint="#B1A1A1"
android:textSize="30dp"></TextView>
<View
android:layout_width="match_parent"
android:layout_height="0.3dp"
android:background="#212"
></View>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_below="@id/tv_calcul"
android:orientation="vertical"
android:gravity="center">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight="1"
android:orientation="horizontal" ><Button
android:id="@+id/calcul_btn_ac"
android:layout_width="140dp"
android:layout_height="match_parent"
android:layout_marginTop="0dp"
android:background="@drawable/riple_btn_nocorner_3"
android:fontFamily="宋体"
android:text="AC"
android:textSize="20dp"
android:layout_weight="2"
android:textColor="#169FDF"
></Button> <Button
android:id="@+id/calcul_btn_date"
android:layout_width="210dp"
android:layout_height="match_parent"
android:layout_marginTop="0dp"
android:background="@drawable/riple_btn_nocorner_3"
android:fontFamily="宋体"
android:text="日期"
android:textAllCaps="false"
android:layout_weight="3"
android:textColor="#169FDF"
android:textSize="20dp"></Button>
</LinearLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_weight="1"
android:layout_height="0dp"
android:orientation="horizontal"
>
<Button
android:id="@+id/calcul_btn_1"
android:layout_width="70dp"
android:layout_height="match_parent"
android:layout_marginTop="0dp"
android:background="@drawable/riple_btn_nocorner_3"
android:fontFamily="宋体"
android:text="1"
android:layout_weight="1"
android:textColor="#169FDF"
android:textSize="25dp"></Button>
<Button
android:id="@+id/calcul_btn_2"
android:layout_width="70dp"
android:layout_height="match_parent"
android:layout_marginTop="0dp"
android:background="@drawable/riple_btn_nocorner_3"
android:text="2"
android:layout_weight="1"
android:textSize="25dp"
android:textColor="#169FDF"
android:fontFamily="宋体"></Button>
<Button
android:id="@+id/calcul_btn_3"
android:layout_width="70dp"
android:layout_height="match_parent"
android:layout_marginTop="0dp"
android:background="@drawable/riple_btn_nocorner_3"
android:text="3"
android:textSize="25dp"
android:textColor="#169FDF"
android:layout_weight="1"
android:fontFamily="宋体"></Button> <Button
android:id="@+id/calcul_btn_del"
android:layout_width="140dp"
android:layout_height="match_parent"
android:layout_marginTop="0dp"
android:background="@drawable/riple_btn_nocorner_3"
android:text="退格"
android:textSize="20dp"
android:textColor="#169FDF"
android:layout_weight="2"
android:textAllCaps="false"
android:fontFamily="宋体"></Button> </LinearLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_weight="1"
android:layout_height="0dp"
android:orientation="horizontal"
> <Button
android:id="@+id/calcul_btn_5"
android:layout_width="70dp"
android:layout_height="match_parent"
android:layout_marginTop="0dp"
android:background="@drawable/riple_btn_nocorner_3"
android:text="5"
android:textSize="25dp"
android:textColor="#169FDF"
android:layout_weight="1"
android:fontFamily="宋体"></Button>
<Button
android:id="@+id/calcul_btn_6"
android:layout_width="70dp"
android:layout_height="match_parent"
android:layout_marginTop="0dp"
android:background="@drawable/riple_btn_nocorner_3"
android:text="6"
android:textSize="25dp"
android:textColor="#169FDF"
android:layout_weight="1"
android:fontFamily="宋体"></Button>
<Button
android:id="@+id/calcul_btn_4"
android:layout_width="70dp"
android:layout_height="match_parent"
android:layout_marginTop="0dp"
android:background="@drawable/riple_btn_nocorner_3"
android:text="4"
android:textSize="25dp"
android:layout_weight="1"
android:textColor="#169FDF"
android:fontFamily="宋体"></Button>
<Button
android:id="@+id/calcul_btn_add"
android:layout_width="70dp"
android:layout_height="match_parent"
android:layout_marginTop="0dp"
android:background="@drawable/riple_btn_nocorner_3"
android:text="+"
android:textSize="25dp"
android:textColor="#169FDF"
android:fontFamily="宋体"
android:layout_weight="1"
></Button>
<Button
android:id="@+id/calcul_btn_multiply"
android:layout_width="70dp"
android:layout_height="match_parent"
android:layout_weight="1"
android:layout_marginTop="0dp"
android:background="@drawable/riple_btn_nocorner_3"
android:text="×"
android:textSize="25dp"
android:textColor="#169FDF"
android:fontFamily="宋体"></Button></LinearLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_weight="1"
android:layout_height="0dp"
android:orientation="horizontal"
> <Button
android:id="@+id/calcul_btn_7"
android:layout_width="70dp"
android:layout_height="match_parent"
android:layout_below="@id/calcul_btn_4"
android:layout_marginTop="0dp"
android:layout_toLeftOf="@id/calcul_btn_5"
android:background="@drawable/riple_btn_nocorner_3"
android:text="7"
android:textSize="25dp"
android:layout_weight="1"
android:textColor="#169FDF"
android:fontFamily="宋体"></Button>
<Button
android:id="@+id/calcul_btn_8"
android:layout_width="70dp"
android:layout_height="match_parent"
android:layout_below="@id/calcul_btn_5"
android:layout_marginTop="0dp"
android:layout_toRightOf="@id/calcul_btn_7"
android:background="@drawable/riple_btn_nocorner_3"
android:text="8"
android:layout_weight="1"
android:textSize="25dp"
android:textColor="#169FDF"
android:fontFamily="宋体"></Button>
<Button
android:id="@+id/calcul_btn_9"
android:layout_width="70dp"
android:layout_height="match_parent"
android:layout_below="@id/calcul_btn_6"
android:layout_marginTop="0dp"
android:layout_toRightOf="@id/calcul_btn_8"
android:background="@drawable/riple_btn_nocorner_3"
android:text="9"
android:layout_weight="1"
android:textColor="#169FDF"
android:textSize="25dp"
android:fontFamily="宋体"></Button>
<Button
android:id="@+id/calcul_btn_sub"
android:layout_width="70dp"
android:layout_height="match_parent"
android:layout_marginTop="0dp"
android:background="@drawable/riple_btn_nocorner_3"
android:text="-"
android:textSize="25dp"
android:textColor="#169FDF"
android:layout_weight="1"
android:fontFamily="宋体"></Button>
<Button
android:id="@+id/calcul_btn_divide"
android:layout_width="70dp"
android:layout_height="match_parent"
android:layout_marginTop="0dp"
android:background="@drawable/riple_btn_nocorner_3"
android:layout_weight="1"
android:text="÷"
android:textSize="25dp"
android:textColor="#169FDF"
android:fontFamily="宋体"></Button>
</LinearLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_weight="1"
android:layout_height="0dp"
android:orientation="horizontal"
>
<Button
android:id="@+id/calcul_btn_point"
android:layout_width="70dp"
android:layout_height="match_parent"
android:layout_below="@id/calcul_btn_9"
android:background="@drawable/riple_btn_nocorner_3"
android:text="."
android:gravity="center"
android:textAllCaps="false"
android:layout_weight="1"
android:textSize="40dp"
android:textColor="#169FDF"
android:fontFamily="宋体"></Button>
<Button
android:id="@+id/calcul_btn_0"
android:layout_width="140dp"
android:layout_height="match_parent"
android:layout_below="@id/calcul_btn_8"
android:layout_marginTop="0dp"
android:layout_toRightOf="@id/calcul_btn_7"
android:background="@drawable/riple_btn_nocorner_3"
android:text="0"
android:textSize="25dp"
android:fontFamily="宋体"
android:layout_weight="2"
android:textColor="#169FDF"
></Button> <Button
android:id="@+id/calcul_btn_equal"
android:layout_width="140dp"
android:layout_height="match_parent"
android:layout_below="@id/calcul_btn_divide"
android:layout_marginTop="0dp"
android:background="@drawable/riple_btn_nocorner_3"
android:text="完成"
android:textSize="20dp"
android:layout_weight="2"
android:textColor="#169FDF"
android:fontFamily="宋体"></Button>
</LinearLayout>
</LinearLayout>
</RelativeLayout>

CordFragment（记录页面，即记录信息）

这里用到的是recycleView放进了这个Fragment中，所以数据更新很令我头痛。

在初始化界面时从SQLite读取数据传到recycleView中显示。

recycleView里放的是TextView，可以实现跑马灯式的循环以解决一行显示不下，两行不好看的问题。

点击TextView后会弹出详细信息界面，在这个界面中可删除此条记录。

删除这里同样有数据更新的问题，我直接跳到了另一个activity又跳回来，以实现删除时数据的动态更新。

CordFragment.java

package com.example.didida_corder; import android.content.Context;
import android.content.Intent;
import android.database.Cursor;
import android.database.sqlite.SQLiteDatabase;
import android.os.Bundle;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.Button;
import android.widget.TextView; import androidx.annotation.NonNull;
import androidx.annotation.Nullable;
import androidx.appcompat.app.AlertDialog;
import androidx.fragment.app.Fragment;
import androidx.recyclerview.widget.LinearLayoutManager;
import androidx.recyclerview.widget.RecyclerView; import com.example.didida_corder.Adapter.CordAdapter;
import com.example.didida_corder.R;
import com.example.didida_corder.ToolClass.CustomDialog;
import com.example.didida_corder.ToolClass.SQLiteUserChager; import java.util.ArrayList;
import java.util.zip.Inflater; public class CordFragment extends Fragment implements CordAdapter.Clickiii {
private RecyclerView recyclerView;
private String[] strings;
private int count;
private String nowusername="defult";
private int i = 0;
private boolean isCreat=false;
private ArrayList<String[]> arr=new ArrayList<>();
public CordFragment() { }
public static CordFragment newInstance(String nowusername) { Bundle args = new Bundle();
args.putString("username",nowusername);
CordFragment fragment = new CordFragment();
fragment.setArguments(args);
return fragment;
}
@Override
public void onAttach(@NonNull Context context) {
super.onAttach(context);
nowusername=getArguments().getString("username");
Log.d("Cord-----------",""+nowusername);
} @Override
public void onResume() {
super.onResume();
} @Nullable
@Override
public View onCreateView(@NonNull LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.layout_cordfragment, null, false); recyclerView = view.findViewById(R.id.crod_recy);
recyclerView.setLayoutManager(new LinearLayoutManager(view.getContext()));
recyclerView.setAdapter(new CordAdapter(view.getContext(), count, readCord(),this));
isCreat=true;
return view;
} public String[] readCord() {
SQLiteUserChager sqLiteUserChager = new SQLiteUserChager(getContext(), "Userr", null, 1);
SQLiteDatabase sqLiteDatabase = sqLiteUserChager.getReadableDatabase();
Cursor cursor = sqLiteDatabase.rawQuery("select * from Cord where username = ?", new String[]{nowusername});
String[] strings = new String[count = cursor.getCount()];
int i = 0;
if (cursor.moveToNext())
do {
String[] strings1=new String[7];
strings1[0]=cursor.getString(cursor.getColumnIndex("date"));
strings1[1]=cursor.getString(cursor.getColumnIndex("type"));
strings1[2]=cursor.getString(cursor.getColumnIndex("inout"));
strings1[3]=cursor.getString(cursor.getColumnIndex("number"));
strings1[4]=cursor.getString(cursor.getColumnIndex("info"));
strings1[5]=cursor.getString(cursor.getColumnIndex("username"));
strings1[6]=cursor.getString(cursor.getColumnIndex("id"));
arr.add(strings1);
strings[i] = "我" + cursor.getString(cursor.getColumnIndex("date")) +
" 在" + cursor.getString(cursor.getColumnIndex("type")) +
"上" + cursor.getString(cursor.getColumnIndex("inout")) +
"了" + cursor.getString(cursor.getColumnIndex("number")) + "元";
i++;
} while (cursor.moveToNext());
cursor.close();
sqLiteDatabase.close();
sqLiteUserChager.close();
return strings;
} @Override
public void onDestroy() {
super.onDestroy(); } @Override
public void clik(int position) {
final String[] strings=arr.get(position);
final AlertDialog.Builder builder4=new AlertDialog.Builder(getContext());
LayoutInflater inflater=LayoutInflater.from(getContext());
View view=inflater.inflate(R.layout.layout_dialog_info,null);
TextView textView=view.findViewById(R.id.info_tx_2);
TextView textView2=view.findViewById(R.id.info_tx_3);
TextView textView3=view.findViewById(R.id.info_tx_4);
TextView textView4=view.findViewById(R.id.info_tx_5);
TextView textView5=view.findViewById(R.id.info_tx_6);
Button button=view.findViewById(R.id.btn_ok);
Button button1=view.findViewById(R.id.btn_delete);
textView.setText(strings[0]);
textView2.setText(strings[2]);
textView3.setText(strings[1]);
textView4.setText(strings[3]);
textView5.setText(strings[4]);
final AlertDialog alertDialog=builder4.setView(view).show();
alertDialog.getWindow().setBackgroundDrawableResource(android.R.color.transparent);
button.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
alertDialog.dismiss();
}
});
button1.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
final CustomDialog customDialog=new CustomDialog(getContext());
customDialog.setMessage("确定删除？");
customDialog.getWindow().setBackgroundDrawableResource(android.R.color.transparent);
customDialog.setConfirm("确定", new CustomDialog.IOnConfirmListener() {
@Override
public void onConfirm(CustomDialog dialog) {
SQLiteUserChager sqLiteUserChager=new SQLiteUserChager(getContext(),"Userr",null,1);
SQLiteDatabase sqLiteDatabase=sqLiteUserChager.getWritableDatabase();
sqLiteDatabase.execSQL("delete from Cord where id = ?",new String[]{strings[6]});
sqLiteDatabase.close();
sqLiteUserChager.close();
Intent intent=new Intent(getActivity(),LoginActivity.class);
Bundle bundle=new Bundle();
bundle.putInt("refresh",1);
bundle.putString("username",nowusername);
Log.d("--------cord-log",nowusername);
intent.putExtras(bundle);
startActivity(intent);
}
}).setCancel("取消", new CustomDialog.IOnCancelListener() {
@Override
public void onCancel(CustomDialog dialog) {
customDialog.dismiss();
}
}).show(); }
});
}
}

layout_cord_fragment recycleview里放的是一个Textview的ltem这里就不贴了

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/cord_linear"
android:background="#FAFAFA"
android:layout_width="match_parent"
android:layout_height="match_parent">
<androidx.recyclerview.widget.RecyclerView
android:id="@+id/crod_recy"
android:layout_width="match_parent"
android:layout_height="wrap_content"
>
</androidx.recyclerview.widget.RecyclerView>
</RelativeLayout>

SociatyFragment（社区页面，大家在社区中讨论省钱心得等等，尚未开发）

MyFragment（我的信息页面，它是一个侧滑菜单）

相关实现方法在我的这篇博客中https://www.cnblogs.com/XiaoGao128/p/12260383.html

它在初始化时同样会从数据库中读取用户昵称

点击退出登录会重新跳回登陆界面。

游客登录会显示请先登录。

MyFragment.java

package com.example.didida_corder; import android.content.Context;
import android.content.Intent;
import android.database.Cursor;
import android.database.sqlite.SQLiteDatabase;
import android.database.sqlite.SQLiteOpenHelper;
import android.os.Bundle;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.Button;
import android.widget.CheckBox;
import android.widget.EditText;
import android.widget.ImageView;
import android.widget.LinearLayout;
import android.widget.RadioButton;
import android.widget.TextView;
import android.widget.Toast; import androidx.annotation.NonNull;
import androidx.annotation.Nullable;
import androidx.appcompat.app.AlertDialog;
import androidx.fragment.app.Fragment; import com.example.didida_corder.ToolClass.CustomDialog;
import com.example.didida_corder.ToolClass.Login;
import com.example.didida_corder.ToolClass.SPUtils;
import com.example.didida_corder.ToolClass.SQLiteUserChager; import java.util.zip.Inflater; public class MyFragment extends Fragment implements View.OnClickListener {
private TextView tv_like, tv_likeme, tv_depatch;
private LinearLayout linearLayout;
private int like, likeme, depatch;
private Context context;
private boolean flag = false;
private TextView tv_name;
private ImageView iv_head;
private int type;
private String nowusername="defult";
private Button button_log;
public MyFragment() { }
// public static String getNowusername(){
// return nowusername;
// }
//在activity中设置数字
public void Set(int like, int likeme, int depatch) {
this.like = like;
this.likeme = likeme;
this.depatch = depatch;
flag = true;
} @Nullable
@Override
public View onCreateView(@NonNull LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.layout_myfragment, null, false);
tv_like = view.findViewById(R.id.myfrag_likeone);
tv_likeme = view.findViewById(R.id.myfrag_likeme);
tv_depatch = view.findViewById(R.id.myfrag_patch);
iv_head=view.findViewById(R.id.myfrag_head);
tv_name=view.findViewById(R.id.tv_name);
button_log=view.findViewById(R.id.myfrag_log);
linearLayout=view.findViewById(R.id.myfrag_linear_out);
linearLayout.setOnClickListener(this);
button_log.setOnClickListener(this);
if (flag) {
tv_like.setText(like);
tv_likeme.setText(likeme);
tv_depatch.setText(depatch);
}
return view;
} public void sentenceAndSet(String username,int type){
this.nowusername=username;
this.type=type;
if (type==0) {
SQLiteUserChager sqLiteUserChager = new SQLiteUserChager(getContext(), "Userr", null, 1);
SQLiteDatabase sqLiteDatabase = sqLiteUserChager.getReadableDatabase(); Cursor cursor = sqLiteDatabase.rawQuery("select * from user where username = ?", new String[]{nowusername});
cursor.moveToNext();
tv_name.setText(cursor.getString(cursor.getColumnIndex("name")));
button_log.setVisibility(View.INVISIBLE);
tv_name.setVisibility(View.VISIBLE);
iv_head.setVisibility(View.VISIBLE); }else {
tv_name.setVisibility(View.INVISIBLE);
iv_head.setVisibility(View.INVISIBLE);
button_log.setVisibility(View.VISIBLE);
}
}
@Override
public void onClick(View v) {
switch (v.getId()){
case R.id.myfrag_linear_out:{
CustomDialog dialog=new CustomDialog(getContext(),R.layout.layout_custom_dialog);
dialog.setTitle("提示").setMessage("退出登录？").setConfirm("退出", new CustomDialog.IOnConfirmListener() {
@Override
public void onConfirm(CustomDialog dialog) {
tv_name.setVisibility(View.INVISIBLE);
iv_head.setVisibility(View.INVISIBLE);
button_log.setVisibility(View.VISIBLE);
nowusername="defult";
SPUtils.put(getContext(),"auto",0);
Intent intent=new Intent(getContext(),LoginActivity.class);
startActivity(intent);
}
}).setCancel("算了", new CustomDialog.IOnCancelListener() {
@Override
public void onCancel(CustomDialog dialog) {
dialog.dismiss();
}
}).show();
break;
}
case R.id.myfrag_log:{
Intent intent=new Intent(getContext(),LoginActivity.class);
startActivity(intent);
break;
} }
} }

layout_myfragment.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="270dp"
android:layout_height="match_parent"
android:background="#F4F4F4"
android:orientation="vertical"> <FrameLayout
android:layout_width="match_parent"
android:layout_height="wrap_content">
<Button
android:id="@+id/myfrag_log"
android:layout_width="180dp"
android:layout_height="60dp"
android:layout_gravity="center"
android:background="@drawable/riple_btn_corner_3"
android:text="请先登录"
android:textColor="#212"
android:textSize="20dp"
android:visibility="invisible"></Button>
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:orientation="vertical"
android:gravity="center"
android:layout_marginLeft="19dp"
>
<ImageView
android:id="@+id/myfrag_head"
android:layout_width="100dp"
android:layout_height="100dp"
android:layout_margin="10dp"
android:src="@drawable/sor"
android:visibility="visible"></ImageView> <TextView
android:id="@+id/tv_name"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="小高128"
android:textColor="#212"
android:textSize="25dp"
android:layout_marginBottom="10dp"
android:visibility="visible"></TextView>
</LinearLayout>
</FrameLayout> <View
android:layout_width="300dp"
android:layout_height="0.1dp"
android:layout_marginTop="5dp"
android:background="#B3221122"></View> <LinearLayout
android:layout_width="match_parent"
android:layout_height="40dp"
android:orientation="horizontal"> <TextView
android:id="@+id/myfrag_patch"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:layout_weight="1"
android:background="#FFFFFF"
android:gravity="center"
android:text="0"
android:textColor="#B3222222"
android:textSize="25dp"></TextView> <TextView
android:id="@+id/myfrag_likeone"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:layout_weight="1"
android:background="#FFFFFF"
android:gravity="center"
android:text="0"
android:textColor="#B3222222"
android:textSize="25dp"></TextView> <TextView
android:id="@+id/myfrag_likeme"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:layout_weight="1"
android:background="#FFFFFF"
android:gravity="center"
android:text="0"
android:textColor="#B3222222"
android:textSize="25dp"></TextView>
</LinearLayout> <LinearLayout
android:layout_width="match_parent"
android:layout_height="40dp"
android:orientation="horizontal"> <TextView
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:layout_weight="1"
android:background="#FFFFFF"
android:gravity="center"
android:text="动态"
android:textColor="#B3222222"
android:textSize="17dp"></TextView> <TextView
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:layout_weight="1"
android:background="#FFFFFF"
android:gravity="center"
android:text="关注"
android:textColor="#B3222222"
android:textSize="17dp"></TextView> <TextView
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:layout_weight="1"
android:background="#FFFFFF"
android:gravity="center"
android:text="粉丝"
android:textColor="#B3222222"
android:textSize="17dp"></TextView> </LinearLayout> <View
android:layout_width="300dp"
android:layout_height="0.1dp"
android:background="#212"></View> <LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="@drawable/riple_btn_nocorner_3"
android:layout_marginTop="20dp"
android:layout_weight="1"
android:gravity="center_vertical"
android:orientation="horizontal"> <ImageView
android:layout_width="25dp"
android:layout_height="25dp"
android:layout_marginLeft="20dp"
android:src="@drawable/xiaoxi"></ImageView> <RadioButton
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:layout_marginLeft="20dp"
android:button="@null"
android:text="我的消息"
android:textColor="#212"
android:textSize="15dp"></RadioButton> <ImageView
android:layout_width="20dp"
android:layout_height="27dp"
android:layout_marginLeft="40dp"
android:src="@drawable/jiantou"></ImageView>
</LinearLayout> <LinearLayout
android:layout_width="match_parent"
android:background="@drawable/riple_btn_nocorner_3"
android:layout_height="wrap_content"
android:layout_marginTop="20dp"
android:layout_weight="1"
android:gravity="center_vertical"
android:orientation="horizontal"> <ImageView
android:layout_width="28dp"
android:layout_height="28dp"
android:layout_marginLeft="20dp"
android:src="@drawable/shouc"></ImageView> <RadioButton
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:layout_marginLeft="20dp"
android:button="@null"
android:text="我的收藏"
android:textColor="#212"
android:textSize="15dp"></RadioButton> <ImageView
android:layout_width="20dp"
android:layout_height="27dp"
android:layout_marginLeft="40dp"
android:src="@drawable/jiantou"></ImageView>
</LinearLayout> <LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginTop="20dp"
android:background="@drawable/radio"
android:layout_weight="1"
android:gravity="center_vertical"
android:orientation="horizontal"> <ImageView
android:layout_width="25dp"
android:layout_height="25dp"
android:layout_marginLeft="20dp"
android:src="@drawable/kefu"></ImageView> <RadioButton
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:layout_marginLeft="20dp"
android:button="@null"
android:text="联系客服"
android:textColor="#212"
android:textSize="15dp"
></RadioButton> <ImageView
android:layout_width="20dp"
android:layout_height="27dp"
android:layout_marginLeft="40dp"
android:src="@drawable/jiantou"></ImageView>
</LinearLayout> <LinearLayout
android:id="@+id/myfrag_linear_out"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginTop="20dp"
android:layout_weight="1"
android:background="@drawable/riple_btn_nocorner_3"
android:gravity="center_vertical"
android:orientation="horizontal"> <ImageView
android:layout_width="25dp"
android:layout_height="25dp"
android:layout_marginLeft="20dp"
android:src="@drawable/tuichu"></ImageView> <TextView
android:id="@+id/rd_out"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:layout_marginLeft="20dp"
android:gravity="center_vertical"
android:button="@null"
android:text="退出登录"
android:textColor="#212"
android:textSize="15dp"></TextView> <ImageView
android:layout_width="20dp"
android:layout_height="27dp"
android:layout_marginLeft="40dp"
android:src="@drawable/jiantou"></ImageView>
</LinearLayout>
</LinearLayout>

一个SharePerference工具类

SPUtils.java

package com.example.didida_corder.ToolClass; import android.content.Context;
import android.content.SharedPreferences; import androidx.annotation.Nullable; import java.util.Map; public class SPUtils {
/**
* 保存在手机里的SP文件名
*/
public static final String FILE_NAME = "my_sp"; /**
* 保存数据
*/
public static SPUtils put(Context context, String key, Object obj) {
SharedPreferences sp = context.getSharedPreferences(FILE_NAME, context.MODE_PRIVATE);
SharedPreferences.Editor editor = sp.edit();
if (obj instanceof Boolean) {
editor.putBoolean(key, (Boolean) obj);
} else if (obj instanceof Float) {
editor.putFloat(key, (Float) obj);
} else if (obj instanceof Integer) {
editor.putInt(key, (Integer) obj);
} else if (obj instanceof Long) {
editor.putLong(key, (Long) obj);
} else {
editor.putString(key, (String) obj);
}
editor.commit();
SPUtils spUtils=new SPUtils();
return spUtils;
} /**
* 获取指定数据
*/
public static Object get(Context context, String key, @Nullable Object defaultObj) {
SharedPreferences sp = context.getSharedPreferences(FILE_NAME, context.MODE_PRIVATE);
if (defaultObj instanceof Boolean) {
return sp.getBoolean(key, (Boolean) defaultObj);
} else if (defaultObj instanceof Float) {
return sp.getFloat(key, (Float) defaultObj);
} else if (defaultObj instanceof Integer) {
return sp.getInt(key, (Integer) defaultObj);
} else if (defaultObj instanceof Long) {
return sp.getLong(key, (Long) defaultObj);
} else if (defaultObj instanceof String) {
return sp.getString(key, (String) defaultObj);
}
return null;
} /**
* 删除指定数据
*/
public static void remove(Context context, String key) {
SharedPreferences sp = context.getSharedPreferences(FILE_NAME, context.MODE_PRIVATE);
SharedPreferences.Editor editor = sp.edit();
editor.remove(key);
editor.commit();
} /**
* 返回所有键值对
*/
public static Map<String, ?> getAll(Context context) {
SharedPreferences sp = context.getSharedPreferences(FILE_NAME, context.MODE_PRIVATE);
Map<String, ?> map = sp.getAll();
return map;
} /**
* 删除所有数据
*/
public static void clear(Context context) {
SharedPreferences sp = context.getSharedPreferences(FILE_NAME, context.MODE_PRIVATE);
SharedPreferences.Editor editor = sp.edit();
editor.clear();
editor.commit();
} /**
* 检查key对应的数据是否存在
*/
public static boolean contains(Context context, String key) {
SharedPreferences sp = context.getSharedPreferences(FILE_NAME, context.MODE_PRIVATE);
return sp.contains(key);
} }