如何解决Android 在 Android 手机锁屏上显示活动
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
版权声明：本文内容由互联网用户自发贡献，该文观点与技术仅代表作者本人。本站仅提供信息存储空间服务，不拥有所有权，不承担相关法律责任。如发现本站有涉嫌侵权/违法违规的内容， 请发送邮件至 dio@foxmail.com 举报，一经查实，本站将立刻删除。