Android: Populate a a ListView from a Database

I have a SQLite Database that I want to use to populate a ListView, but I can't for the life of me figure out how to do that. Based on various internet sources (other questions/tutorials/etc.), I've been able to get this code, but it's clearly not working, as I'm now not even able to open the app in the emulator:

populateListView method

public void populateListView() {
    Cursor cursor = db.getAllContacts();
    String[] fromFieldNames = new String[] {DBAdapter.KEY_ROWID, DBAdapter.KEY_LOCATION, DBAdapter.KEY_TIME};
    int[] toViewIds = new int[] {R.id.textView3, R.id.textView2, R.id.textView4};
    SimpleCursorAdapter myCursorAdapter = new SimpleCursorAdapter(this,
            R.layout.list_view_layout, cursor, fromFieldNames, toViewIds, 0);

    ListView listView = (ListView) findViewById(R.id.listView);
    listView.setAdapter(myCursorAdapter);
}

activity_main.xml

<RelativeLayout xmlns:android="http://ift.tt/nIICcg"
    xmlns:tools="http://ift.tt/LrGmb4" android:layout_width="match_parent"
    android:layout_height="match_parent" android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    android:paddingBottom="@dimen/activity_vertical_margin" tools:context=".MainActivity"
    android:orientation="vertical"
    android:id="@+id/TableLayout">


<Button
    android:layout_width="fill_parent"
    android:layout_height="wrap_content"
    android:text="Set New Alarm"
    android:id="@+id/setAlarmButton"
    android:layout_alignParentBottom="true"
    android:layout_alignParentLeft="true"
    android:layout_alignParentStart="true"
    android:onClick="onClickSetAlarm" />

<ListView
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:id="@+id/listView" />

</RelativeLayout>

list_view_layout.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://ift.tt/nIICcg"
android:orientation="horizontal"
android:layout_width="match_parent"
android:layout_height="match_parent">

<TextView
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:text="New Text"
    android:id="@+id/textView2" />

<TextView
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:text="New Text"
    android:id="@+id/textView3" />

<TextView
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:text="New Text"
    android:id="@+id/textView4"
    android:layout_gravity="center_horizontal" />
</LinearLayout>

I'm fairly certain that the issue isn't with the code for the DBAdapter, as it was working fine before I added this bit of code (I had it display a Toast with the data).

Thanks!