Android仿微信QQ等实现锁屏消息提醒

import android.content.Intent;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.view.View;import com.demo.lockscreenmsgdemo.MyService;
import com.demo.lockscreenmsgdemo.R;/**
* 仿qq，微信，支付宝锁屏消息
* 使用步骤，点击这个按钮以后，按返回键退出APP，关闭手机屏幕，5s以后会受到锁屏消息，可以点击进入消息详情页面
*/
public class MainActivity extends AppCompatActivity { @Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main); findViewById(R.id.start_service_btn).setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
Intent intent = new Intent(MainActivity.this, MyService.class);
startService(intent); //启动后台服务
}
});
}
}

import android.app.KeyguardManager;
import android.app.WallpaperManager;
import android.content.Context;
import android.content.Intent;
import android.graphics.drawable.Drawable;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.util.Log;
import android.view.View;
import android.view.Window;
import android.view.WindowManager;import com.demo.lockscreenmsgdemo.R;/**
* 锁屏消息内容的activity
*/
public class MessageActivity extends AppCompatActivity { private Context mContext; @Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
Log.i("tag", "onCreate:启动了消息内容的activity ");
//四个标志位顾名思义，分别是锁屏状态下显示，解锁，保持屏幕长亮，打开屏幕。这样当Activity启动的时候，它会解锁并亮屏显示。
Window win = getWindow();
win.addFlags(WindowManager.LayoutParams.FLAG_SHOW_WHEN_LOCKED //锁屏状态下显示
| WindowManager.LayoutParams.FLAG_DISMISS_KEYGUARD //解锁
| WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON //保持屏幕长亮
| WindowManager.LayoutParams.FLAG_TURN_SCREEN_ON); //打开屏幕
//使用手机的背景
Drawable wallPaper = WallpaperManager.getInstance(this).getDrawable();
win.setBackgroundDrawable(wallPaper);
setContentView(R.layout.activity_message); mContext = this;
initView();
} @Override
protected void onNewIntent(Intent intent) {
super.onNewIntent(intent);
//获取电源管理器对象
// PowerManager pm = (PowerManager) this.getSystemService(Context.POWER_SERVICE);
// if (!pm.isScreenOn()) {
// PowerManager.WakeLock wl = pm.newWakeLock(PowerManager.ACQUIRE_CAUSES_WAKEUP |
// PowerManager.SCREEN_BRIGHT_WAKE_LOCK, "bright");
// wl.acquire(); //点亮屏幕
// wl.release(); //任务结束后释放
// }
} private void initView() {
findViewById(R.id.message_layout).setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
//先解锁系统自带锁屏服务，放在锁屏界面里面
KeyguardManager keyguardManager = (KeyguardManager) mContext.getSystemService(Context.KEYGUARD_SERVICE);
keyguardManager.newKeyguardLock("").disableKeyguard(); //解锁
//点击进入消息对应的页面
mContext.startActivity(new Intent(mContext, DetailsActivity.class));
finish();
}
}); findViewById(R.id.close_iv).setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
finish();
}
});
}
}

import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;import com.demo.lockscreenmsgdemo.R;public class DetailsActivity extends AppCompatActivity { @Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_details);
}
}

import android.app.KeyguardManager;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.os.Build;
import android.util.Log;import com.demo.lockscreenmsgdemo.activity.MessageActivity;/**
* 监听锁屏消息的广播接收器
*/
public class LockScreenMsgReceiver extends BroadcastReceiver {
private static final String TAG = "LockScreenMsgReceiver"; @Override
public void onReceive(Context context, Intent intent) {
Log.i(TAG, "onReceive:收到了锁屏消息 ");
String action = intent.getAction();
if (action.equals("com.zx.lockscreenmsgdemo.LockScreenMsgReceiver")) {
//管理锁屏的一个服务
KeyguardManager km = (KeyguardManager) context.getSystemService(Context.KEYGUARD_SERVICE);
String text = km.inKeyguardRestrictedInputMode() ? "锁屏了" : "屏幕亮着的";
Log.i(TAG, "text: " + text);
if (km.inKeyguardRestrictedInputMode()) {
Log.i(TAG, "onReceive:锁屏了 ");
//判断是否锁屏
Intent alarmIntent = new Intent(context, MessageActivity.class);
//在广播中启动Activity的context可能不是Activity对象，所以需要添加NEW_TASK的标志，否则启动时可能会报错。
alarmIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
if(Build.VERSION.SDK_INT >= 26){
alarmIntent.addFlags(Intent.FLAG_ACTIVITY_PREVIOUS_IS_TOP);
} context.startActivity(alarmIntent); //启动显示锁屏消息的activity
}
}
}
}

import android.app.Service;
import android.content.ComponentName;
import android.content.Intent;
import android.os.IBinder;
import android.util.Log;/**
* 模拟推送，在退出APP后的一段时间发送消息
*/
public class MyService extends Service {
private static final String TAG = "MyService"; public MyService() {
} @Override
public IBinder onBind(Intent intent) {
Log.i(TAG, "onBind: ");
throw new UnsupportedOperationException("Not yet implemented");
} @Override
public void onCreate() {
Log.i(TAG, "onCreate: ");
super.onCreate();
} @Override
public int onStartCommand(Intent intent, int flags, int startId) {
Log.i(TAG, "onStartCommand: ");
sendMessage();
return START_STICKY;
} @Override
public void onDestroy() {
Log.i(TAG, "onDestroy: ");
super.onDestroy();
} /**
* 模仿推送，发消息
*/
private void sendMessage() {
System.out.println("sendMessage");
new Thread(new Runnable() {
@Override
public void run() {
try {
Thread.sleep(5000);
} catch (InterruptedException e) {
e.printStackTrace();
}
Intent intent = new Intent();
intent.setAction("com.demo.lockscreenmsgdemo.LockScreenMsgReceiver");
//Android O版本对后台进程做了限制广播的发送，对隐式广播也做了限制；必须要指定接受广播类的包名和类名
//解决Background execution not allowed-----8.0以上发送的隐式广播无法被收到问题
intent.setComponent(new ComponentName("com.demo.lockscreenmsgdemo","com.demo.lockscreenmsgdemo.LockScreenMsgReceiver"));
sendBroadcast(intent); //发送广播
}
}).start();
}
}

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:gravity="center"
tools:context="com.demo.lockscreenmsgdemo.activity.DetailsActivity"><TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textSize="18sp"
android:text="这是消息的详情"/></LinearLayout>

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context="com.demo.lockscreenmsgdemo.activity.MainActivity"> <Button
android:id="@+id/start_service_btn"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_centerInParent="true"
android:text="开启消息服务" /></RelativeLayout>

<?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:gravity="center"
android:layout_marginStart="15dp"
android:layout_marginEnd="15dp"
android:orientation="vertical"> <RelativeLayout
android:layout_width="match_parent"
android:layout_height="50dp"
android:background="#381515"
android:orientation="horizontal"> <ImageView
android:id="@+id/icon_iv"
android:layout_width="25dp"
android:layout_height="25dp"
android:layout_centerVertical="true"
android:layout_marginStart="15dp"
android:scaleType="centerCrop"
android:src="@mipmap/qq" /> <TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerVertical="true"
android:layout_marginStart="15dp"
android:layout_toEndOf="@id/icon_iv"
android:text="QQ"
android:textColor="#fff" /> <ImageView
android:id="@+id/close_iv"
android:layout_width="15dp"
android:layout_height="15dp"
android:layout_alignParentEnd="true"
android:layout_centerVertical="true"
android:layout_marginEnd="15dp"
android:scaleType="centerCrop"
android:src="@mipmap/close" /> </RelativeLayout> <LinearLayout
android:id="@+id/message_layout"
android:layout_width="match_parent"
android:layout_height="100dp"
android:background="#1c3636"
android:orientation="vertical"
android:paddingLeft="15dp"
android:paddingTop="25dp"> <TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text=".在吗?"
android:textColor="#fff" /> <TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="10dp"
android:text=".今天有空吗！"
android:textColor="#fff" />
</LinearLayout></LinearLayout>

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.demo.lockscreenmsgdemo"> <!-- 解锁屏幕需要的权限 -->
<uses-permission android:name="android.permission.DISABLE_KEYGUARD" />
<!-- 申请电源锁需要的权限 -->
<uses-permission android:name="android.permission.WAKE_LOCK" /> <application
android:allowBackup="true"
android:icon="@mipmap/ic_launcher"
android:label="@string/app_name"
android:roundIcon="@mipmap/ic_launcher_round"
android:supportsRtl="true"
android:theme="@style/AppTheme">
<activity android:name=".activity.MainActivity">
<intent-filter>
<action android:name="android.intent.action.MAIN" /> <category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity
android:name=".activity.MessageActivity"
android:excludeFromRecents="true"
android:launchMode="singleInstance"
android:taskAffinity="" /> <receiver
android:name=".LockScreenMsgReceiver"
android:enabled="true"
android:exported="true">
<intent-filter> <!-- 监听锁屏消息 -->
<action android:name="com.demo.lockscreenmsgdemo.LockScreenMsgReceiver" />
</intent-filter>
</receiver> <service
android:name=".MyService"
android:enabled="true"
android:exported="true" /> <activity android:name=".activity.DetailsActivity"></activity>
</application></manifest>