未显示自定义警报对话框

Question

在我的应用程序中，当我试图显示自定义的AlertDialog框时，它在android手机中运行良好。现在，当我在android选项卡上安装应用程序时，一切都很好，只有自定义AlertDialog框有问题。不显示。所以我想，我应该检查正常对话框，它工作正常。下面是普通对话框和警报对话框的代码。

AlertDialog.Builder alertDialog = new AlertDialog.Builder(this);

// Setting Dialog Title
alertDialog.setTitle("Confirm Delete...");

// Setting Dialog Message
alertDialog.setMessage("Are you sure you want delete this?");

// Setting Icon to Dialog
// alertDialog.setIcon(R.drawable.delete);

// Setting Positive "Yes" Button
alertDialog.setPositiveButton("YES",
        new DialogInterface.OnClickListener() {
            public void onClick(DialogInterface dialog, int which) {

                // Write your code here to invoke YES event
                Toast.makeText(getApplicationContext(),
                        "You clicked on YES", Toast.LENGTH_SHORT)
                        .show();
            }
        });

// Setting Negative "NO" Button
alertDialog.setNegativeButton("NO",
        new DialogInterface.OnClickListener() {
            public void onClick(DialogInterface dialog, int which) {
                // Write your code here to invoke NO event
                Toast.makeText(getApplicationContext(),
                        "You clicked on NO", Toast.LENGTH_SHORT)
                        .show();
                dialog.cancel();
            }
        });

// Showing Alert Message
alertDialog.show();

AlertDialog.Builder alertDialogBuilder = new AlertDialog.Builder(getApplicationContext());

// AlertDialogBuilder.setMessage(diadis);
LayoutInflater inflater = (LayoutInflater)getApplicationContext()
        .getSystemService(Context.LAYOUT_INFLATER_SERVICE);
View view = inflater.inflate(R.layout.update_status, null);
alertDialogBuilder.setView(view);

final AlertDialog alertDialog = alertDialogBuilder.create();
alertDialog.getWindow().setType(WindowManager.LayoutParams.TYPE_SYSTEM_ALERT);
alertDialog.getWindow().setBackgroundDrawable(new ColorDrawable(android.graphics.Color.TRANSPARENT));
alertDialog.getWindow().requestFeature(Window.FEATURE_NO_TITLE);
alertDialog.getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN, WindowManager.LayoutParams.FLAG_LAYOUT_IN_SCREEN);
alertDialog.show();
alertDialog.findViewById(R.id.positive_button).setOnClickListener(new View.OnClickListener() {
    @Override
    public void onClick(View v) {
        alertDialog.dismiss();
    }
});

// Close
alertDialog.findViewById(R.id.close_button).setOnClickListener(new View.OnClickListener() {
    @Override
    public void onClick(View v) {
        alertDialog.dismiss();
    }
});

Answer 1

请查看此代码段

private void openQuitDialog() {
    AlertDialog.Builder quitDialog
            = new AlertDialog.Builder(MainActivity.this);
    quitDialog.setTitle(getResources().getString(R.string.are_you_sure_to_exit));
    quitDialog.setPositiveButton(getResources().getString(R.string.yes), new DialogInterface.OnClickListener() {

        @Override
        public void onClick(DialogInterface dialog, int which) {
            // TODO Auto-generated method stub
            finish();
        }
    });

    quitDialog.setNegativeButton(getResources().getString(R.string.no), new DialogInterface.OnClickListener() {

        @Override
        public void onClick(DialogInterface dialog, int which) {
            // TODO Auto-generated method stub

        }
    });

    quitDialog.show();
}

并在需要的地方调用openQuitDialog（）。