我想用cwac库在相机视图上缩略图。
cameraFragment.takePicture();
Bitmap bitmap = Utility.decodeSampledBitmapFromPath(
cameraFragment.cameraHost.getPhotoPath()
.getAbsolutePath(), 120, 120);
image.setImageBitmap(bitmap);
答案 0 :(得分:1)
我和Cwac有同样的问题,我的工作太先进了,无法切换到另一个库,所以我的解决方案就在这里。
修改您的CameraFragment.onCreate方法,将DemoCameraHost设置为默认主机:
public class CameraFragment extends com.commonsware.cwac.camera.CameraFragment {
private DemoCameraHost mDemoCamHost;
@Override
public void onCreate(Bundle state) {
super.onCreate(state);
setHasOptionsMenu(true);
mDemoCamHost = new DemoCameraHost(getActivity());
this.setHost(mDemoCamHost);
}
在DemoCameraHost方法中,useSingleShotMode必须返回false
。
/**
* Method indicates if after taking picture bitmap is frozen or next frame shown.
*
* @return Enable showing preview, must be false for this project.
*/
@Override
public boolean useSingleShotMode() {
return false;
}
现在你必须覆盖DemoCameraHost中的saveImage方法,你接收到编码为字节数组的图像,只需将其解码回来:
@Override
public void saveImage(PictureTransaction xact, byte[] image) {
Log.i(TAG, "saveImage");
Bitmap bm = BitmapFactory.decodeByteArray(image, 0, image.length);
//drawOnTop.setBitmap(bm); // this is my internal class that operates on the bitmap
if (bm == null)
Log.e(TAG, "bitmap is null");
else
Log.e(TAG, "bitmap size: " + bm.getWidth() + ":" + bm.getHeight());
// dont'save image on SD, prevents delay and freezing screen
//super.saveImage(xact, image);
}
现在,当您从CameraFragment呼叫takePicture()
时,您将获得:
04-06 11:47:12.576 3038-3038/net.agilob.ssocv I/CamFrg﹕ useSingleShotMode
04-06 11:47:12.596 3038-3130/net.agilob.ssocv I/CamFrg﹕ saveImage
04-06 11:47:12.676 3038-3130/net.agilob.ssocv E/CamFrg﹕ bitmap size: 1280:960
答案 1 :(得分:0)
找到解决方案: 我不使用cwac相机库。使用自定义相机布局。 Kut Camera