просто хочет нарисовать линию в виде наложения, но она перестает передавать изображение, показанное ниже, на устройствах OREO.
Приведенный ниже код работает нормально на старых устройствах ..
public View initiateBackView() {
int LAYOUT_FLAG = Build.VERSION.SDK_INT >= Build.VERSION_CODES.O ? WindowManager.
LayoutParams.TYPE_APPLICATION_OVERLAY : WindowManager.LayoutParams.TYPE_SYSTEM_ALERT;
lineParams = new WindowManager.LayoutParams(
android.view.ViewGroup.LayoutParams.WRAP_CONTENT,
android.view.ViewGroup.LayoutParams.WRAP_CONTENT,
///WindowManager.LayoutParams.TYPE_SYSTEM_ALERT,
LAYOUT_FLAG,
WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE | WindowManager.LayoutParams.FLAG_NOT_TOUCH_MODAL,
///WindowManager.LayoutParams.FLAG_WATCH_OUTSIDE_TOUCH |
///WindowManager.LayoutParams.FLAG_SHOW_WHEN_LOCKED
//|
/*WindowManager.LayoutParams.FLAG_DISMISS_KEYGUARD
| WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON
| WindowManager.LayoutParams.FLAG_TURN_SCREEN_ON
| WindowManager.LayoutParams.FLAG_LAYOUT_IN_SCREEN
| WindowManager.LayoutParams.FLAG_NOT_TOUCH_MODAL
//| WindowManager.LayoutParams.FLAG_TRANSLUCENT_NAVIGATION
| WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE
| WindowManager.LayoutParams.FLAG_SPLIT_TOUCH
| WindowManager.LayoutParams.FLAG_ALLOW_LOCK_WHILE_SCREEN_ON,*/
PixelFormat.TRANSLUCENT);
lineParams.gravity = Gravity.LEFT | Gravity.TOP;
lineParams.x = 0;
lineParams.y = 1000;
getNewLineView();
try {
// FIXME: 08/04/2018 added twice that's why
wm.addView(lineView, lineParams);
} catch (WindowManager.BadTokenException e) {
e.printStackTrace();
}
return lineView;
}
private void getNewLineView() {
lineView = new DrawView(mContext);
lineView.setId(LINE_VIEW_ID);
SharedPreferences prefs = mContext.getSharedPreferences("myPref",
Context.MODE_PRIVATE);
lineView.setStartX(prefs.getInt("startX", offsetFromScreen));
lineView.setStartY(prefs.getInt("startY", offsetFromScreen));
lineView.setEndX(prefs.getInt("endX", widthInPixels - offsetFromScreen));//200
lineView.setEndY(prefs.getInt("endY", heightInPixels - offsetFromScreen));//200
lineView.setMidX(prefs.getInt("midX", widthInPixels/2));//100
lineView.setMidY(prefs.getInt("midY", heightInPixels/2));//100
lineView.setAngleX(prefs.getInt("angleX", 50));//50
lineView.setAngleY(prefs.getInt("angleY", 50));//50
}