优化实现

app/src/main/java/com/xypower/mpapp/v2/Camera2VideoActivity.java

@@ -134,7 +134,7 @@ public class Camera2VideoActivity extends AppCompatActivity {
 
             try {
                 long ts = System.currentTimeMillis();
-                Bitmap bm = Bitmap.createBitmap(mPreviewView.getMeasuredWidth(), mPreviewView.getMeasuredHeight(), Bitmap.Config.ARGB_8888);
+                Bitmap bm = Bitmap.createBitmap(mPreviewWidth, mPreviewHeight, Bitmap.Config.ARGB_8888);
                 Bitmap oldBm = null;
                 Canvas canvas = new Canvas(bm);