Android——对话框1（一般、选择、自定义、进度条）

<Button
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="点击触发弹出普通对话框"
android:onClick="pt_onclick"/>
<Button
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="点击触发弹出单选对话框"
android:onClick="danxuanonclick"/> <Button
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="点击触发弹出多选对话框"
android:onClick="duoxuanonclick"/>
<Button
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="点击触发弹出自定义对话框"
android:onClick="zdy_onclick"/>
<Button
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="点击触发弹出自定义旋转进度条对话框"
android:onClick="jdt_onclick"/>
<Button
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="点击触发弹出自定义水平进度条对话框"
android:onClick="jdt1_onclick"/>

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<ImageView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:src="@drawable/anniu2"
android:scaleType="fitXY"/>
<EditText
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:hint="用户名"
android:id="@+id/et_username"/>
<EditText
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:hint="密码"
android:inputType="textPassword"
android:id="@+id/et_password"/></LinearLayout>

package com.example.chenshuai.test322;import android.app.AlertDialog;
import android.app.DatePickerDialog;
import android.app.ProgressDialog;
import android.app.TimePickerDialog;
import android.content.DialogInterface;
import android.content.Intent;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.view.ContextMenu;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.MenuInflater;
import android.view.MenuItem;
import android.view.SubMenu;
import android.view.View;
import android.widget.Button;
import android.widget.DatePicker;
import android.widget.EditText;
import android.widget.ProgressBar;
import android.widget.SeekBar;
import android.widget.TimePicker;
import android.widget.Toast;import java.util.Calendar;/**
* Created by chenshuai on 2016/3/30.
*/
public class UIActivity2 extends AppCompatActivity { @Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_ui2); Button bt_changan = (Button)findViewById(R.id.bt_changan);
bt_changan.setOnCreateContextMenuListener(this); //进度条
//final 生命周期为整个类
final ProgressBar pb_1 = (ProgressBar)findViewById(R.id.pb_1);
final ProgressBar pb_2 = (ProgressBar)findViewById(R.id.pb_2); SeekBar sb_1 = (SeekBar)findViewById(R.id.sbr_1); sb_1.setOnSeekBarChangeListener(new SeekBar.OnSeekBarChangeListener() {
@Override
public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) { pb_2.setProgress(progress);
} //开始拖动
@Override
public void onStartTrackingTouch(SeekBar seekBar) { } //结束拖动
@Override
public void onStopTrackingTouch(SeekBar seekBar) { pb_2.setProgress(seekBar.getProgress());
if (seekBar.getProgress() == seekBar.getMax()) {
//设置不可见 GONE不占位置 invisible 占位置
pb_1.setVisibility(View.GONE); } else {
//可见
pb_1.setVisibility(View.VISIBLE);
} }
});
} //菜单 上下文菜单
@Override
public void onCreateContextMenu(ContextMenu menu, View v, ContextMenu.ContextMenuInfo menuInfo) { menu.add(0, 1, 0, "添加");
menu.add(0, 2, 1, "修改");
menu.add(0, 3, 2, "删除");
SubMenu m = menu.addSubMenu(0, 4, 3, "子菜单");
m.add(0,4-1,0,"子菜单项一");
m.add(0,4-2,1,"子菜单项二");
m.add(0,4-3,2,"子菜单项三");
m.add(0,4-4,3,"子菜单项四"); super.onCreateContextMenu(menu, v, menuInfo);
} @Override
public boolean onContextItemSelected(MenuItem item) { switch (item.getItemId())
{
case 1:
Toast.makeText(UIActivity2.this, "触发了添加功能", Toast.LENGTH_SHORT).show();
break;
case 2:
Toast.makeText(UIActivity2.this, "触发了删除功能", Toast.LENGTH_SHORT).show();
break;
case 3:
Toast.makeText(UIActivity2.this, "触发了修改功能", Toast.LENGTH_SHORT).show();
break; }
return super.onContextItemSelected(item);
} @Override
//重写 创建选项菜单的方法
public boolean onCreateOptionsMenu(Menu menu) { //添加菜单项
//第一种 纯编码方式
/*menu.add(0, 1, 0, "添加");
menu.add(0, 2, 2, "删除");
menu.add(0, 3, 1, "修改");
*/
//第二种 加载菜单文件方式 //1.获取一个菜单加载器 MenuInflater menuInflater = getMenuInflater(); menuInflater.inflate(R.menu.mymenu,menu); return super.onCreateOptionsMenu(menu);
} @Override
public boolean onOptionsItemSelected (MenuItem item){ //Toast.makeText(UiActivity2.this, "选中的菜单项是" + item.getTitle(), Toast.LENGTH_SHORT).show(); //根据菜单项不同响应不同功能
switch (item.getItemId()) {
case 1:
Toast.makeText(UIActivity2.this, "触发了添加功能", Toast.LENGTH_SHORT).show();
break;
case 2:
Toast.makeText(UIActivity2.this, "触发了删除功能", Toast.LENGTH_SHORT).show();
break;
case 3:
Toast.makeText(UIActivity2.this, "触发了修改功能", Toast.LENGTH_SHORT).show();
break;
case R.id.it1:
Toast.makeText(UIActivity2.this, "触发了删除一功能", Toast.LENGTH_SHORT).show();
break;
case R.id.it2:
Toast.makeText(UIActivity2.this, "触发了添加一功能", Toast.LENGTH_SHORT).show();
break;
} return super.onOptionsItemSelected(item); } public void pt_onclick(View view)
{
//普通对话框
//对话框的构建器
//AlertDialog.Builder ab = new AlertDialog.Builder(this);
/* ab.setTitle("数据删除");
ab.setMessage("你确定要删除吗？");
//负面按钮
ab.setPositiveButton("取消", null);
//正面按钮
ab.setNegativeButton("确定", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) { Toast.makeText(UIActivity2.this, "删除成功", Toast.LENGTH_SHORT).show(); }
});
//显示
ab.show();*/ //方法链调用
new AlertDialog.Builder(this) .setTitle("确认保存")
.setMessage("确定要保存吗？")
.setPositiveButton("确定", null)
.setNegativeButton("取消", null)
.show();
} public void danxuanonclick(View v)
{
final String[] str_color = {"红","绿","蓝","灰"};
new AlertDialog.Builder(this)
.setTitle("请选择颜色")
.setSingleChoiceItems(str_color, 0, new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) { Toast.makeText(UIActivity2.this, "选中了" + str_color[which], Toast.LENGTH_SHORT).show(); //移除
//dialog.dismiss();
}
})
.setNeutralButton("确定", null)
.show(); }
public void duoxuanonclick(View v)
{
final String[] str_color = {"红","绿","蓝","灰"};
final boolean[] bl_sz = {true,true,true,false};
new AlertDialog.Builder(this)
.setTitle("请选择颜色")
.setMultiChoiceItems(str_color, bl_sz, new DialogInterface.OnMultiChoiceClickListener() {
@Override
public void onClick(DialogInterface dialog, int which, boolean isChecked) {
if (isChecked) {
Toast.makeText(UIActivity2.this, str_color[which] + "选中了", Toast.LENGTH_SHORT).show();
} else {
Toast.makeText(UIActivity2.this, str_color[which] + "取消选中了", Toast.LENGTH_SHORT).show();
} }
})
.setNeutralButton("确定", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) { //遍历数组
for (boolean b : bl_sz) { try {
Thread.sleep(100);
} catch (Exception ex) { }
Toast.makeText(UIActivity2.this, "值=" + b, Toast.LENGTH_SHORT).show(); }
}
})
.show();
} public void zdy_onclick(View view)
{
//1.获取加载器
LayoutInflater layoutInflater = getLayoutInflater();
//2.用加载器加载文件
//final View v_1 = layoutInflater.inflate(R.layout.loginlayout,null); new AlertDialog.Builder(this) //.setView(v_1)
.setView(R.layout.loginlayout)
.setNegativeButton("取消", null)
.setPositiveButton("登陆", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) { AlertDialog al = (AlertDialog) dialog; //处理数据
//EditText et_username = (EditText)v_1.findViewById(R.id.et_username); EditText et_username = (EditText) al.findViewById(R.id.et_username); //Toast.makeText(UIActivity2.this, "用户名="+et_username.getText(), Toast.LENGTH_SHORT).show(); String useneme = et_username.getText().toString(); EditText et_password = (EditText) al.findViewById(R.id.et_password);
String pwd = et_password.getText().toString(); if (useneme.equals("wukong") && pwd.equals("123")) { Intent in = new Intent(UIActivity2.this, Activity1.class); startActivity(in);
} else
Toast.makeText(UIActivity2.this, "用户名" + useneme + "密码" + pwd, Toast.LENGTH_SHORT).show();
{ } }
})
.show(); } //旋转进度条
public void jdt_onclick(View view)
{ final ProgressDialog pd = new ProgressDialog(this);
pd.setMessage("正在加载请稍后");
pd.show(); //创建thread实例 =【重写run方法 启动多线程
new Thread()
{
@Override
public void run() {
super.run();
try
{
Thread.sleep(3000);
}
catch (Exception e)
{ } pd.dismiss();//关闭 }
}.start(); }
//水平进度条
public void jdt1_onclick(View view)
{ final ProgressDialog pd = new ProgressDialog(this);
pd.setProgressStyle(ProgressDialog.STYLE_HORIZONTAL);
pd.setMessage("正在加载请稍后");
pd.show(); //创建thread实例 实现Runable接口 启动多线程
new Thread(new Runnable() {
@Override
public void run() {
for (int i = 0; i <= pd.getMax(); i++) {
try {
Thread.sleep(100);
} catch (Exception e) { } pd.setProgress(i);
} pd.dismiss();
}
}).start(); //创建thread实例 重写run方法 启动多线程
new Thread()
{
@Override
public void run() {
super.run(); //新线程 子线程
for (int i = 0; i <= pd.getMax(); i++) {
try {
Thread.sleep(100);
} catch (Exception e) { } pd.setProgress(i);
} pd.dismiss();//关闭
//子线程不能直接操作主线程 UI线程
//1.可以用hander
//2.也可以用runOnUiThread
runOnUiThread(new Runnable() {
@Override
public void run() {
Toast.makeText(UIActivity2.this, "加载完成", Toast.LENGTH_SHORT).show();
}
}); } }.start(); }
}