pop up wiindow with notification even apllication is not running

Question

here is my code and I am getting my notification on time but the application is being ctrash during pop up

 private void showCustomPopupMenu()
{
    WindowManag         


        

Answer 1

You need to have ACTION_MANAGE_OVERLAY_PERMISSION permission to open/display Alert

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

  <uses-permission
        android:name="android.permission.INTERNAL_SYSTEM_WINDOW"
        tools:ignore="ProtectedPermissions" />

set alert type of "TYPE_APPLICATION_OVERLAY".

if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
                alertDialog.getWindow().setType(WindowManager.LayoutParams.TYPE_APPLICATION_OVERLAY);
            }else{
                alertDialog.getWindow().setType(WindowManager.LayoutParams.TYPE_SYSTEM_ALERT);
            }

change your TYPE_PHONE with TYPE_SYSTEM_ALERT

You should also refer this answer. If still you have doubt let me know.

Now when notification arrived, check this:

  public void notificationArrived(String myMsg){

      if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.M) {
                final boolean overlayEnabled = Settings.canDrawOverlays(MyFirebaseMessagingService.this);
                Global.printLog("showTaskDetailPopup==", "overlayEnabled" + overlayEnabled);

                if (!overlayEnabled) return;
            }

  new Handler(Looper.getMainLooper()).post(new Runnable() {
            public void run() {

                final Dialog dialog = new Dialog(MyFirebaseMessagingService.this);
                dialog.requestWindowFeature(Window.FEATURE_NO_TITLE);
                dialog.setContentView(R.layout.window_popup_medicine);
                dialog.setCancelable(true);

                TextView tv_msg = dialog.findViewById(R.id.tv_msg);

                    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
                            dialog.getWindow().setType(WindowManager.LayoutParams.TYPE_APPLICATION_OVERLAY);
                    } else {
                            dialog.getWindow().setType(WindowManager.LayoutParams.TYPE_SYSTEM_ALERT);
                    }
                    dialog.show();
                }
                } catch (JSONException e) {
                    e.printStackTrace();
                }
            }
        });
     }