如何模糊对话框活动背景

Question

对不起我的英语：）。我需要模糊我的对话框活动背景，我尝试了这种方法

模糊警报对话框后面的背景

我用以下代码发送位图：

Bitmap back1 = takeScreenShot(MainActivity.this);
Bitmap back2 = fastblur(back1, 10);
Intent intent = new Intent(getApplicationContext(), FilterActivity.class);
intent.putExtra("back", back2);
startActivity(intent);

并在我的活动中接收位图：

    @Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    Intent intent = new Intent(getIntent());
    Bitmap back = intent.getParcelableExtra("back");
    BitmapDrawable ob = new BitmapDrawable(getResources(), back);
    getWindow().setBackgroundDrawable(ob);
    setContentView(R.layout.filter_activity);
}

但它强迫我关闭logcat中的错误：

03-08 14:03:54.685 16735-16735/ir.aftabeshafa.shafadoc E/JavaBinder: !!! FAILED BINDER TRANSACTION !!!  (parcel size = 13225428)
03-08 14:03:54.685 16735-16735/ir.aftabeshafa.shafadoc D/AndroidRuntime: Shutting down VM
03-08 14:03:54.686 16735-16735/ir.aftabeshafa.shafadoc E/AndroidRuntime: FATAL EXCEPTION: main
                                                                         Process: ir.aftabeshafa.shafadoc, PID: 16735
                                                                         java.lang.RuntimeException: Failure from system

我怎样才能解决这个问题？或者你知道另一种模糊对话活动背景的方法吗？

Answer 1

试试这个代码片段，这将为对话框创建透明的背景。

private void Dialog() {
        final Dialog dialog = new Dialog(GenerateToken.this);
        dialog.requestWindowFeature(Window.FEATURE_NO_TITLE);
        dialog.setContentView(R.layout.customdialog_tokenvalidate);
        dialog.setCanceledOnTouchOutside(false);
        dialog.setCancelable(false);
        Window window = dialog.getWindow();
        window.setLayout(ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.WRAP_CONTENT);
        window.setGravity(Gravity.CENTER);
        //The below code is EXTRA - to dim the parent view by 70%
        WindowManager.LayoutParams lp = window.getAttributes();
        lp.dimAmount = 0.7f;
        lp.flags = WindowManager.LayoutParams.FLAG_DIM_BEHIND;
        dialog.getWindow().setBackgroundDrawable(new      ColorDrawable(android.graphics.Color.TRANSPARENT));
        dialog.getWindow().setAttributes(lp);
        //Show the dialog
        dialog.show();
        TextView tvSelectedBank = (TextView) dialog.findViewById(R.id.validatetext);
        //button for ok
        dialog.findViewById(R.id.tokenvalidate).setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                finish();
                dialog.dismiss();
            }
        });
        dialog.show();
    }

此外，从这个线程获取帮助模糊背景AlertDialog

Answer 2

首先，您不应该通过Binder翻译位图，绑定器的最大容器1M。

您可以尝试以下方法：首先：

MyApplication. back2 = back2;

然后：

   @Override
protected void onCreate(Bundle savedInstanceState) {
    BitmapDrawable ob = new BitmapDrawable(getResources(),MyApplication.back2);
    getWindow().getDecorView().setBackground(ob);
    super.onCreate(savedInstanceState);
    setContentView(R.layout.filter_activity);
}