Android 在 Android 手机锁屏上显示活动

问题描述

我正在尝试显示用户打开手机时的活动

我做了这些

1.带有广播接收器的前台服务以在锁屏上显示活动

public class OverlayService extends Service {
    notificationmanager manager;

    @Override
    public IBinder onBind(Intent intent) {
        throw new UnsupportedOperationException("Not yet implemented");
    }

    @Override
    public void onCreate() {
        super.onCreate();

        if (Build.VERSION.SDK_INT > Build.VERSION_CODES.O)
            startMyOwnForeground();
        else {
            startForeground(1,new Notification());
            Toast.makeText(this,"  Service Is Running",Toast.LENGTH_LONG).show();
        }
    }

    @RequiresApi(Build.VERSION_CODES.O)
    private void startMyOwnForeground() {

        String NOTIFICATION_CHANNEL_ID = ".....";
        String channelName = "Foreground Service";
        NotificationChannel chan = new NotificationChannel(NOTIFICATION_CHANNEL_ID,channelName,notificationmanager.IMPORTANCE_DEFAULT);
        chan.setLightColor(Color.BLUE);
        chan.setLockscreenVisibility(Notification.VISIBILITY_PRIVATE);
        chan.setShowBadge(false);
        manager = (notificationmanager) getSystemService(Context.NOTIFICATION_SERVICE);
        assert manager != null;
        manager.createNotificationChannel(chan);
        NotificationCompat.Builder notificationBuilder = new NotificationCompat.Builder(this,NOTIFICATION_CHANNEL_ID);
        Notification notification = notificationBuilder.setongoing(true)
                .setContentTitle("text_my")
                .setContentText("my_text")
                .setPriority(notificationmanager.IMPORTANCE_DEFAULT)
                .setCategory(Notification.CATEGORY_EVENT)
                .build();
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.Q) {
            startForeground(2,notification,ServiceInfo.FOREGROUND_SERVICE_TYPE_DATA_SYNC);
        }
        startForeground(2,notification);
        Toast.makeText(this," ...Service Is Running",Toast.LENGTH_LONG).show();
    }

    @Override
    public int onStartCommand(Intent intent,int flags,int startId) {
        registerOverlayReceiver();
        return START_STICKY;
    }

    @Override
    public void onDestroy() {
        super.onDestroy();
        unregisterOverlayReceiver();
    }

    private void registerOverlayReceiver() {
        IntentFilter filter = new IntentFilter();
        filter.addAction(Intent.ACTION_SCREEN_ON);
        filter.addAction(ACTION_DEBUG);
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
            filter.addAction(Intent.ACTION_USER_UNLOCKED);
        }
        registerReceiver(overlayReceiver,filter);
    }

    private void unregisterOverlayReceiver() {
        unregisterReceiver(overlayReceiver);
    }

    private static final String ACTION_DEBUG = "....text";

    private final broadcastReceiver overlayReceiver = new broadcastReceiver() {
        @Override
        public void onReceive(Context context,Intent intent) {
            String action = intent.getAction();
            assert action != null;
            if (action.equals(Intent.ACTION_SCREEN_ON)) {
                showOverlayActivity(context);
            } else if (action.equals(ACTION_DEBUG)) {
                showOverlayActivity(context);
            }
            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N && action.equals(Intent.ACTION_USER_UNLOCKED)) {
                showOverlayActivity(context);
            }
        }

    };

    private void showOverlayActivity(Context context) {
        Intent intent = new Intent(context,com.rad.mls.OverlayActivity.class);
        intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
        intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
        context.startActivity(intent);

    }
}

在 OverlayActivity 中显示在锁屏上

final Window window = getwindow();
        window.addFlags(WindowManager.LayoutParams.FLAG_SHOW_WHEN_LOCKED
                | WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON | WindowManager.LayoutParams.FLAG_disMISS_KEyguard);

Android 清单中的权限

    <uses-permission android:name="android.permission.SYstem_ALERT_WINDOW" />
    <uses-permission android:name="android.permission.FOREGROUND_SERVICE" />
    <uses-permission android:name="android.permission.INTERNET" />
    <uses-permission android:name="android.permission.VIBRATE" />
    <uses-permission android:name="android.permission.WAKE_LOCK" />
    <uses-permission android:name="android.permission.USE_FULL_SCREEN_INTENT" />
    <uses-permission android:name="android.permission.disABLE_KEyguard" />

清单中的活动

<activity
            android:name=".OverlayActivity"
            android:excludeFromrecents="true"
            android:screenorientation="portrait"
            android:showOnLockScreen="true"
            android:theme="@style/Theme.Lockscreen" />

我启动前台服务的方式

Intent i = new Intent(this,OverlayService.class);
        i.setAction("C.ACTION_START_SERVICE");
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) startForegroundService(i);
        else
            startService(i);

if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
                    Toast.makeText(this,"Give app permission to disPLAY(DRAW) OVER TOP OF OTHER APPS",Toast.LENGTH_LONG).show();
                    Intent intent;
                    if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.M) {
                        intent = new Intent(Settings.ACTION_MANAGE_OVERLAY_PERMISSION);
                    } else {
                        intent = new Intent(Settings.ACTION_APPLICATION_DETAILS_SETTINGS);
                    }
                    Uri uri = Uri.fromParts("package",getPackageName(),null);
                    intent.setData(uri);
                    startActivity(intent);
                    finish();
                } else {
                    finish();
                }

我还问用户，如果他们在 Miui 上转到权限并允许应用程序显示在锁屏上，但仍然

主要问题：虽然它适用于大多数设备，但仍然适用于许多设备在许多情况下，设备活动也没有显示在模式/密码锁定上设备服务在一段时间后自动终止，它停止显示活动

是否有一种正确的方法可以在锁屏上显示带有事件侦听器的布局或者最接近完美的方法是什么？

解决方法

实际上在 8+ 上，您需要一些其他代码，而弃用的标志将不起作用

if(Build.VERSION.SDK_INT >= Build.VERSION_CODES.O_MR1){
    setShowWhenLocked(true)
    setTurnScreenOn(true)
}

if(Build.VERSION.SDK_INT >= Build.VERSION_CODES.O){
    (getSystemService(Context.KEYGUARD_SERVICE) as? KeyguardManager)?.requesDismissKeyguard()
}

另外不要忘记能够在 Android 10+ 中启动活动的后门（例如系统警报窗口权限）此外，MIUI 有很多垃圾项目添加到 android 中，我发现的最全面的代码是在 QuickLyric 的源代码中

https://github.com/QuickLyric/QuickLyric/blob/master/QuickLyric/src/main/java/com/geecko/QuickLyric/utils/PermissionsChecker.java

android android android-activity android-service foreground-service lockscreen

Android 在 Android 手机锁屏上显示活动

问题描述

解决方法

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