锁屏状态下弹出对话款，类似QQ、微信锁屏时候屏幕小窗口显示消息

来源：互联网发布：秦始皇活着吗知乎编辑：程序博客网时间：2024/05/29 13:46

原：http://www.eoeandroid.com/forum.php?mod=viewthread&tid=540944&extra=page%3D1&page=1

不多说，上个简图，

首先创建一个广播接收消息，

这里面有判断是否锁屏，

BroadcastReceiver broadcastReceiver = new BroadcastReceiver() {    @Override    public void onReceive(Context context, Intent intent) {        if (intent.getAction().equals("com.aura.iotcontrol.activity")){            System.out.println("收到消息") ;            KeyguardManager km = (KeyguardManager) context.getSystemService(Context.KEYGUARD_SERVICE);            if (km.inKeyguardRestrictedInputMode()) {                Intent alarmIntent = new Intent(context, AlarmHandlerActivity.class);                    alarmIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);                    MessageActivity.this.startActivity(alarmIntent);        }        }    }} ;

注册代码

private static final String ACTION = "com.aura.iotcontrol.activity";

IntentFilter filter = new IntentFilter();filter.addAction(ACTION);registerReceiver(broadcastReceiver, filter);

收到消息后发送广播

sendBroadcast(new Intent(ACTION));

当广播接收到消息后，跳转指定的activity，并解锁显示布局

@Overrideprotected void onCreate(Bundle savedInstanceState) {    super.onCreate(savedInstanceState);    final Window win = getWindow();    win.addFlags(WindowManager.LayoutParams.FLAG_SHOW_WHEN_LOCKED            | WindowManager.LayoutParams.FLAG_DISMISS_KEYGUARD            | WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON            | WindowManager.LayoutParams.FLAG_TURN_SCREEN_ON);    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();        wl.release();    }    DialogUtil.showWf(AlarmHandlerActivity.this , "收到消息！");}

最后别忘了加权限：

<uses-permission android:name="android.permission.DISABLE_KEYGUARD"/><uses-permission android:name="android.permission.WAKE_LOCK"/>

菜鸟笔记，不喜勿喷。
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