修改成员变量名

app/src/main/java/com/agenew/mnist/FingerPaintView.java

@@ -16,7 +16,7 @@ public class FingerPaintView extends View {
 	private Path mPath;
 	private Bitmap mDrawingBitmap;
 	private Canvas mDrawingCanvas;
-	private Paint drawingPaint;
+	private Paint mDrawingPaint;
 	private float mPenX = 0.0f;
 	private float mPenY = 0.0f;
 	private Paint mPaint;
@@ -38,7 +38,7 @@ public class FingerPaintView extends View {
 	}
 
 	private void init() {
-		drawingPaint = new Paint(Paint.DITHER_FLAG);
+		mDrawingPaint = new Paint(Paint.DITHER_FLAG);
 		mPath = new Path();
 		mPaint = new Paint();
 		mPaint.setAntiAlias(true);
@@ -62,7 +62,7 @@ public class FingerPaintView extends View {
 	protected void onDraw(Canvas canvas) {
 		super.onDraw(canvas);
 		if (canvas != null) {
-			canvas.drawBitmap(mDrawingBitmap, 0f, 0f, drawingPaint);
+			canvas.drawBitmap(mDrawingBitmap, 0f, 0f, mDrawingPaint);
 			canvas.drawPath(mPath, mPaint);
 		}
 	}