Custom dialog too small
Change your dialog dimension on runtime:
yourDialog.show();
yourDialog.getWindow().setLayout((6 * width)/7, LayoutParams.WRAP_CONTENT);
You can do that for both dimension, in my example i only changed the width. Hope it helps!
EDIT
I forgot to mention where i took width:
DisplayMetrics metrics = getResources().getDisplayMetrics();
int width = metrics.widthPixels;
int height = metrics.heightPixels;
EDIT 2
Try this code:
Dialog yourDialog = dialogFragment.getDialog();
yourDialog.getWindow().setLayout((6 * width)/7, (4 * height)/5);
Setting android:minWidth and android:minHeight in the custom layout does the trick for me.