white background under alert dialog box

Question

Why am i getting this white background under my alert dialogbox. I been trying to figure out the problem for an hour and had no luck. Can someone please help me?

Also, why is that the left and right sides of the title has a little dark shade.

protected void onPostExecute(String result) {
    //progressDialog.dismiss();
    try {
        JSONObject json = new JSONObject(result);
        String status = json.getString("status");
        String message = json.getString("message");
        if(status.equals("true")) {
            Intent intent = new Intent(context, HomeActivity.class);
            intent.putExtra(LoginActivity.EXTRA_MESSAGE, status);
            intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
            context.startActivity(intent);
        }
        else{
            AlertDialog.Builder builder = new AlertDialog.Builder(activity);
            builder.setMessage(message)
                   .setTitle("Error")
                   .setNeutralButton("OK", new DialogInterface.OnClickListener() {
                       public void onClick(DialogInterface dialog, int which) {
                           dialog.cancel();
                       }
                   }).create().show();
        }
    } catch (Exception e) {
        e.printStackTrace();
    }
}

try setting theme like, AlertDialog.Builder(activity, android.R.style.Theme_Holo_Dialog); — Harin, Apr 14 '15 at 11:51
I found the issue. I've added #FFFFFF to the style. I removed that line and the white background is gone. weird — Drunken Daddy, Apr 15 '15 at 08:23

score 29 · Accepted Answer · answered Jan 04 '16 at 04:57

29

Import android.support.v7.app.AlertDialog instead of android.app.AlertDialog

answered Jan 04 '16 at 04:57

Sheychan

2,415
14
32

score 14 · Answer 2 · answered Apr 14 '15 at 12:27

Change your code as -

 Dialog alertDialog = new Dialog(this);
    alertDialog.requestWindowFeature(Window.FEATURE_NO_TITLE);
    alertDialog.setContentView(R.layout.tabs);
    alertDialog.getWindow().setBackgroundDrawable(new ColorDrawable(android.graphics.Color.TRANSPARENT));
    alertDialog.show();

Or you can add theme to your existing code.

AlertDialog.Builder alertDialog = new AlertDialog.Builder(activity, AlertDialog.THEME_DEVICE_DEFAULT_LIGHT);

score 7 · Answer 3 · edited May 23 '17 at 12:02

7

When initializing dialog builder, pass second parameter as the theme. So Change

AlertDialog.Builder builder = new AlertDialog.Builder(activity);

to

AlertDialog.Builder builder = new AlertDialog.Builder(activity, AlertDialog.THEME_DEVICE_DEFAULT_LIGHT);

It is old answer, now

Import android.support.v7.app.AlertDialog instead of android.app.AlertDialog

as given in accepted answer.

edited May 23 '17 at 12:02

Community

1
1

answered Apr 14 '15 at 11:56

Giru Bhai

14,370
5
46
74

1

it works, but now the dividers between title and message and ok button are also gone. :) – Drunken Daddy Apr 14 '15 at 12:04
For this issue please refer http://stackoverflow.com/questions/26599805/android-alert-dialog-not-styled-properly-on-lollipop – Giru Bhai Apr 14 '15 at 12:12

score 6 · Answer 4 · edited Mar 10 '20 at 14:51

6

if you can access Dialog class, try this:

 alertDialog.getWindow().getDecorView().setBackgroundColor(Color.TRANSPARENT);

before:

dialog_before

after:

dialog_after

edited Mar 10 '20 at 14:51

Adil Soomro

37,609
9
103
153

answered Mar 27 '17 at 10:21

id3210

81
1
3

white background under alert dialog box

4 Answers4