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java samples fix (clear view before drawing frame) of 'dirty' FPS display bug

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Andrey Pavlenko
2012-09-28 18:18:34 +04:00
parent 9ee87bd04b
commit a8e7f91e34
7 changed files with 7 additions and 0 deletions
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samples/android/face-detection/src/org/opencv/samples/fd/SampleCvViewBase.java
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@@ -110,6 +110,7 @@ public abstract class SampleCvViewBase extends SurfaceView implements SurfaceHol
if (bmp != null) {
Canvas canvas = mHolder.lockCanvas();
if (canvas != null) {
canvas.drawColor(0, android.graphics.PorterDuff.Mode.CLEAR);
canvas.drawBitmap(bmp, (canvas.getWidth() - bmp.getWidth()) / 2, (canvas.getHeight() - bmp.getHeight()) / 2, null);
mFps.draw(canvas, (canvas.getWidth() - bmp.getWidth()) / 2, 0);
mHolder.unlockCanvasAndPost(canvas);