Circle view will show black checkmark if background is white.

app/src/main/java/com/kabouzeid/gramophone/views/CircleView.java

@@ -1,4 +1,4 @@
-package com.kabouzeid.gramophone.views;
+package com.afollestad.cabinet.views;
 
 import android.content.Context;
 import android.graphics.Bitmap;
@@ -7,43 +7,47 @@ import android.graphics.Canvas;
 import android.graphics.Color;
 import android.graphics.Matrix;
 import android.graphics.Paint;
+import android.graphics.PorterDuff;
+import android.graphics.PorterDuffColorFilter;
 import android.util.AttributeSet;
 import android.widget.FrameLayout;
 
-import com.kabouzeid.gramophone.R;
+import com.afollestad.cabinet.R;
+
 
 public class CircleView extends FrameLayout {
-
+    
     private final Bitmap mCheck;
     private final Paint paint;
     private final Paint paintBorder;
+    private Paint paintCheck;
     private final int borderWidth;
-
+    
     public CircleView(Context context) {
         this(context, null, 0);
     }
-
+    
     public CircleView(Context context, AttributeSet attrs) {
         this(context, attrs, 0);
     }
-
+    
     public CircleView(Context context, AttributeSet attrs, int defStyleAttr) {
         super(context, attrs, defStyleAttr);
         final int checkSize = (int) context.getResources().getDimension(R.dimen.circle_view_check);
         mCheck = getResizedBitmap(BitmapFactory.decodeResource(context.getResources(),
-                R.drawable.ic_check), checkSize, checkSize);
+                                                               R.drawable.ic_check), checkSize, checkSize);
         borderWidth = (int) getResources().getDimension(R.dimen.circle_view_border);
-
+        
         paint = new Paint();
         paint.setAntiAlias(true);
-
+        
         paintBorder = new Paint();
         paintBorder.setAntiAlias(true);
         paintBorder.setColor(Color.BLACK);
-
+        
         setWillNotDraw(false);
     }
-
+    
     private static Bitmap getResizedBitmap(Bitmap bm, int newHeight, int newWidth) {
         int width = bm.getWidth();
         int height = bm.getHeight();
@@ -55,20 +59,20 @@ public class CircleView extends FrameLayout {
         bm.recycle();
         return resizedBitmap;
     }
-
+    
     @Override
     public void setBackgroundColor(int color) {
         paint.setColor(color);
         requestLayout();
         invalidate();
     }
-
+    
     public void setBorderColor(int color) {
         paintBorder.setColor(color);
         requestLayout();
         invalidate();
     }
-
+    
     @Override
     protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
         int widthMode = MeasureSpec.getMode(widthMeasureSpec);
@@ -84,22 +88,29 @@ public class CircleView extends FrameLayout {
             super.onMeasure(widthMeasureSpec, heightMeasureSpec);
         }
     }
-
+    
     @Override
     protected void onDraw(Canvas canvas) {
         super.onDraw(canvas);
-
+        
         int canvasSize = canvas.getWidth();
         if (canvas.getHeight() < canvasSize)
             canvasSize = canvas.getHeight();
-
+        
         int circleCenter = (canvasSize - (borderWidth * 2)) / 2;
         canvas.drawCircle(circleCenter + borderWidth, circleCenter + borderWidth, ((canvasSize - (borderWidth * 2)) / 2) + borderWidth - 4.0f, paintBorder);
         canvas.drawCircle(circleCenter + borderWidth, circleCenter + borderWidth, ((canvasSize - (borderWidth * 2)) / 2) - 4.0f, paint);
-
+        
         if (isActivated()) {
             final int offset = (canvasSize / 2) - (mCheck.getWidth() / 2);
-            canvas.drawBitmap(mCheck, offset, offset, null);
+            if (paint.getColor() == Color.WHITE && paintCheck == null) {
+                paintCheck = new Paint();
+                paintCheck.setAntiAlias(true);
+                paintCheck.setColorFilter(new PorterDuffColorFilter(Color.BLACK, PorterDuff.Mode.SRC_IN));
+            } else {
+                paintCheck = null;
+            }
+            canvas.drawBitmap(mCheck, offset, offset, paintCheck);
         }
     }
-}
+}