Cache Paint objects instead of allocation in draw method

app/src/main/java/com/limelight/binding/input/virtual_controller/AnalogStick.java

@@ -116,7 +116,7 @@ public class AnalogStick extends VirtualControllerElement {
     private float position_stick_x = 0;
     private float position_stick_y = 0;
 
-    private Paint paint = new Paint();
+    private final Paint paint = new Paint();
 
     private STICK_STATE stick_state = STICK_STATE.NO_MOVEMENT;
     private CLICK_STATE click_state = CLICK_STATE.SINGLE;

app/src/main/java/com/limelight/binding/input/virtual_controller/DigitalButton.java

@@ -59,6 +59,8 @@ public class DigitalButton extends VirtualControllerElement {
     private Timer timerLongClick = null;
     private TimerLongClickTimerTask longClickTimerTask = null;
 
+    private final Paint paint = new Paint();
+
     private int layer;
     private DigitalButton movingButton = null;
 
@@ -142,8 +144,6 @@ public class DigitalButton extends VirtualControllerElement {
         // set transparent background
         canvas.drawColor(Color.TRANSPARENT);
 
-        Paint paint = new Paint();
-
         paint.setTextSize(getPercent(getCorrectWidth(), 50));
         paint.setTextAlign(Paint.Align.CENTER);
         paint.setStrokeWidth(3);

app/src/main/java/com/limelight/binding/input/virtual_controller/DigitalPad.java

@@ -22,6 +22,8 @@ public class DigitalPad extends VirtualControllerElement {
     public final static int DIGITAL_PAD_DIRECTION_DOWN = 8;
     List<DigitalPadListener> listeners = new ArrayList<DigitalPadListener>();
 
+    private final Paint paint = new Paint();
+
     public DigitalPad(VirtualController controller, Context context) {
         super(controller, context);
     }
@@ -35,8 +37,6 @@ public class DigitalPad extends VirtualControllerElement {
         // set transparent background
         canvas.drawColor(Color.TRANSPARENT);
 
-        Paint paint = new Paint();
-
         paint.setTextSize(getPercent(getCorrectWidth(), 20));
         paint.setTextAlign(Paint.Align.CENTER);
         paint.setStrokeWidth(3);

app/src/main/java/com/limelight/binding/input/virtual_controller/VirtualControllerElement.java

@@ -18,6 +18,8 @@ public abstract class VirtualControllerElement extends View {
 
     protected VirtualController virtualController;
 
+    private final Paint paint = new Paint();
+
     protected int normalColor = 0xF0888888;
     protected int pressedColor = 0xF00000FF;
 
@@ -71,8 +73,6 @@ public abstract class VirtualControllerElement extends View {
     protected void onDraw(Canvas canvas) {
         if (virtualController.getControllerMode() == VirtualController.ControllerMode.
                 Configuration) {
-            Paint paint = new Paint();
-
             paint.setColor(pressedColor);
             paint.setStrokeWidth(3);
             paint.setStyle(Paint.Style.STROKE);