v0.7.4b: Initial LibGDX commit! more details below:

Large sections of game logic are now working through libgdx instead of
android libraries. There is still work to do but this is the first
major step. Big changes include:
- Graphics code is now through LibGDX (except for text rendering)
- Initialization and screen-handling logic is now mostly through LibGDX
- Audio is now through LibGDX
- Input handling is now through LibGDX
- Most misc functions are now through LibGDX

SPD-classes/src/main/java/com/watabou/utils/SparseArray.java

@@ -21,26 +21,18 @@
 
 package com.watabou.utils;
 
-import java.util.ArrayList;
+import com.badlogic.gdx.utils.IntMap;
+
+import java.util.Arrays;
 import java.util.List;
 
-public class SparseArray<T> extends android.util.SparseArray<T> {
+public class SparseArray<T> extends IntMap<T> {
 
 	public int[] keyArray() {
-		int size = size();
-		int[] array = new int[size];
-		for (int i=0; i < size; i++) {
-			array[i] = keyAt( i );
-		}
-		return array;
+		return keys().toArray().toArray();
 	}
 	
-	public List<T> values() {
-		int size = size();
-		ArrayList<T> list = new ArrayList<T>( size );
-		for (int i=0; i < size; i++) {
-			list.add( i, valueAt( i ) );
-		}
-		return list;
+	public List<T> toList() {
+		return Arrays.asList(values().toArray().toArray());
 	}
 }