My Android-App doesn't Display ListView with custom Adapter

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http://stackoverflow.com – i'm writing an android app that should fetch song data from a parse.com database and display it with a custom Listview. The data is retreived correctly, thats not my problem. My problem is, nothing is displayed in my ListView-Activity and I get no error at all. Here is my code: Main class: package de.lichtenberger.gottschalk.android; import java.util.ArrayList; import java.util.List; import android.app.ListActivity; import android.content.Intent; import android.os.Bundle; import android.util.Log; import android.view.View; import android.view.View.OnClickListener; import android.widget.A (HowTos)