Android dialog theme makes setContentView crash the application

Question

I'm applying this theme from manifest :

    <activity
        android:name=".ui.rate.MyActivity"
        android:theme="@android:style/Theme.Dialog">
    </activity>

With this the application crash on setContentView() of MyActivity. If I remove it there is no crash but I need this theme

In the activity onCreate() i'm doing this :

    requestWindowFeature(Window.FEATURE_NO_TITLE);
    setContentView(R.layout.activity_rate);
    getWindow().setBackgroundDrawableResource(android.R.color.transparent);

Even if I remove the first and third lines the applicatio ncrash the same way. It's really the dialog theme that's causing the crash

How can I set it so that Android accept it ?

I can't refactor it as a dialog, it needs to stay as an Activity. — An-droid, Mar 08 '17 at 13:57
There is no log the application just crash without error/warning — An-droid, Mar 08 '17 at 13:59
Yes that was it, actually I found it just before you told me ;) but you can make the answer and i'll accept it — An-droid, Mar 08 '17 at 14:33
Ah just one thing.... The name of the application appear at the top of the dialog. How can I remove it ? — An-droid, Mar 08 '17 at 14:54
Just like the answer given below, use `supportRequestWindowFeature(Window.FEATURE_NO_TITLE);` instead of `requestWindowFeature(Window.FEATURE_NO_TITLE);` for that you are using a **compat** theme for your activity. @An-droid — hwding, Mar 18 '17 at 12:48

score 3 · Accepted Answer · answered Mar 18 '17 at 12:29

You can use Theme.AppCompat.Dialog as the theme of your activity to avoid compatibility problem.
The activity will be presented as a dialog.

<activity
    android:name=".MainActivity"
    android:theme="@style/Theme.AppCompat.Dialog">
</activity>

As for the title, you can use setTitle("Hola!"); to change it.
If you wanna remove the title, just call:

supportRequestWindowFeature(Window.FEATURE_NO_TITLE);

for android:theme="@style/Theme.AppCompat.Dialog",
and:

requestWindowFeature(Window.FEATURE_NO_TITLE);

for android:theme="@android:style/Theme.Dialog".

It's been a while but yes if I remember correctly, AppCompat was the solution o/ — An-droid, Jun 16 '17 at 08:03

Android dialog theme makes setContentView crash the application

1 Answers1