Can't get transparent DialogFragment

Question

I have a dialog Fragment which look like that.

AlertDialog ad          


        

Answer 1

The issue is in default dialog theme. Based on this and this answers it's much easier to achieve your target.

The Activity should be like the following:

public class MyActivity extends FragmentActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        getWindow().requestFeature(Window.FEATURE_NO_TITLE);
        setContentView(R.layout.main);
    }

    @Override
    public void onBackPressed() {
        MyDialogFragment.newInstance("title title").show(getSupportFragmentManager(), "dialog");
    }
}

And fragment:

public class MyDialogFragment extends android.support.v4.app.DialogFragment {

    /**
     * Create a new instance of MyDialogFragment, providing "title"
     * as an argument.
     */
    static MyDialogFragment newInstance(String title) {
        MyDialogFragment frag = new MyDialogFragment();
        Bundle args = new Bundle();

        args.putString("title", title);
        frag.setArguments(args);
        return frag;
    }

    @Override
    public Dialog onCreateDialog(Bundle savedInstanceState) {
        Dialog dialog = new Dialog(getActivity(),android.R.style.Theme_Translucent_NoTitleBar);
        final View view = getActivity().getLayoutInflater().inflate(R.layout.share_or_die, null);

        final Drawable d = new ColorDrawable(Color.BLACK);
        d.setAlpha(130);

        dialog.getWindow().setBackgroundDrawable(d);
        dialog.getWindow().setContentView(view);

        final WindowManager.LayoutParams params = dialog.getWindow().getAttributes();
        params.width = WindowManager.LayoutParams.WRAP_CONTENT;
        params.height = WindowManager.LayoutParams.WRAP_CONTENT;
        params.gravity = Gravity.CENTER;

        dialog.setCanceledOnTouchOutside(true);

        return dialog;
    }
}

Also, be sure to do the following: before setContentView() in the activity, getWindow().requestFeature(Window.FEATURE_NO_TITLE) should be added in order to use *NoTitleBar style.

The result is (I've used LinearLayout with single TextView inside):