Another Fatal Exception Main In Android Programming

I looked up other similar questions and couldn't find a solution, so here I am. I am a complete beginner in Java and android programming, even though I have a quite good knowledge

Solution 1:

I think the problem is the android:background property of your RelativeLayout:

android:background="@style/AppTheme"

Android tells you

Caused by: android.content.res.Resources$NotFoundException: Resource isnot a Drawable (color or path): TypedValue{t=0x1/d=0x7f060001 a=-1 r=0x7f060001}

The system expects the background resource to be a Drawable, not a style. Use style to set a style, or android:background to set a Drawable to be used as the background:

style="@style/AppTheme"

Update: From the docs about android:background:

A drawable to use as the background. This can be either a reference to a full drawable resource (such as a PNG image, 9-patch, XML state list description, etc), or a solid color such as "#ff000000" (black).

You can read more about styles and themes in the Android developer guide.