棉花糖或更高版本的Windows类型2010的Android权限被拒绝 [英] Android permission denied for window type 2010 in Marshmallow or higher
问题描述
我试图使 Chathead 类型在我的应用程序上通过Android服务过度绘制,例如波纹管图像.
I am try to make Chathead type overly draw via Android Service on my app like bellow image.
此聊天头应用程序可在Android版本5或更低版本(kitkat,棒棒糖等)上运行.但是我正在棉花糖和更高版本中尝试使用,然后出现此错误.
This chat head app works on Android Version 5 or lower versions(kitkat,lollipop etc).But I am trying it in Marshmallow and higher versions,Then get this error.
android.view.WindowManager$BadTokenException: Unable to add window
android.view.ViewRootImpl$W@48f5767 -- permission denied for window type 2010
聊天头代码
注意:我正在从Android服务中调用此函数
权限列表:
<uses-permission android:name="android.permission.SYSTEM_ALERT_WINDOW" />
<uses-permission android:name="android.permission.BIND_DEVICE_ADMIN" />
<uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED" />
private WindowManager windowManager;
private ImageView chatHead;
WindowManager.LayoutParams params;
@Override
public void onCreate() {
super.onCreate();
windowManager = (WindowManager) getSystemService(WINDOW_SERVICE);
chatHead = new ImageView(this);
chatHead.setImageResource(R.drawable.settingsicon);
params = new WindowManager.LayoutParams(
WindowManager.LayoutParams.WRAP_CONTENT,
WindowManager.LayoutParams.WRAP_CONTENT,
WindowManager.LayoutParams.TYPE_PHONE,
WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE,
PixelFormat.TRANSLUCENT);
params.gravity = Gravity.TOP | Gravity.LEFT;
params.x = 0;
params.y = 100;
windowManager.addView(chatHead, params);
chatHead.setOnTouchListener(new View.OnTouchListener() {
private int initialX;
private int initialY;
private float initialTouchX;
private float initialTouchY;
@Override
public boolean onTouch(View v, MotionEvent event) {
switch (event.getAction()) {
case MotionEvent.ACTION_DOWN:
initialX = params.x;
initialY = params.y;
initialTouchX = event.getRawX();
initialTouchY = event.getRawY();
return true;
case MotionEvent.ACTION_UP:
return true;
case MotionEvent.ACTION_MOVE:
params.x = initialX + (int) (event.getRawX() - initialTouchX);
params.y = initialY + (int) (event.getRawY() - initialTouchY);
windowManager.updateViewLayout(chatHead, params);
return true;
}
return false;
}
}
}
如何在Mashmallow或更高版本的android系统上解决此错误?
How to resolve this error on Mashmallow or higher android versions ?
推荐答案
在显示聊天标题之前,请调用此方法以请求权限:
Call this method to ask for permission before showing chat head:
public void addOverlay() {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
if (!Settings.canDrawOverlays(this)) {
askedForOverlayPermission = true;
Intent intent = new Intent(Settings.ACTION_MANAGE_OVERLAY_PERMISSION, Uri.parse("package:" + getPackageName()));
startActivityForResult(intent, OVERLAY_PERMISSION_CODE);
}
}
}
在许可结果之后,如果用户允许许可,则只有您可以显示聊天头,如下所示:
after that on Permission result if user allows for permission then only you can show chat head like below:
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
if (requestCode == OVERLAY_PERMISSION_CODE) {
askedForOverlayPermission = false;
if (Settings.canDrawOverlays(this)) {
// SYSTEM_ALERT_WINDOW permission not granted...
//Toast.makeText(MyProtector.getContext(), "ACTION_MANAGE_OVERLAY_PERMISSION Permission Granted", Toast.LENGTH_SHORT).show();
Intent serviceIntent = new Intent(Homepage.this, ChatHeadService.class);
serviceIntent.putExtra("removeUserId", friendId);
startService(serviceIntent);
} else {
Toast.makeText(MyProtector.getContext(), "ACTION_MANAGE_OVERLAY_PERMISSION Permission Denied", Toast.LENGTH_SHORT).show();
}
}
让我知道它是否对您有帮助...祝您好运.
Let me know if it helps you... best of luck.
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