format

app/src/main/java/com/agenew/detection/MainActivity.java

@@ -37,7 +37,6 @@ import java.util.LinkedList;
 import java.util.List;
 
 import com.agenew.detection.customview.OverlayView;
-import com.agenew.detection.customview.OverlayView.DrawCallback;
 import com.agenew.detection.env.BorderedText;
 import com.agenew.detection.env.ImageUtils;
 import com.agenew.detection.env.Logger;

app/src/main/java/com/agenew/detection/customview/OverlayView.java

@@ -24,7 +24,7 @@ import java.util.List;
 
 /** A simple View providing a render callback to other classes. */
 public class OverlayView extends View {
-	private final List<DrawCallback> callbacks = new LinkedList<DrawCallback>();
+	private final List<DrawCallback> callbacks = new LinkedList<>();
 
 	public OverlayView(final Context context, final AttributeSet attrs) {
 		super(context, attrs);
@@ -43,6 +43,6 @@ public class OverlayView extends View {
 
 	/** Interface defining the callback for client classes. */
 	public interface DrawCallback {
-		public void drawCallback(final Canvas canvas);
+		void drawCallback(final Canvas canvas);
 	}
 }