没有在Android上显示相机预览

Question

I want before capture, showing camera preview. but not showing camera preview.

it is not occur error thanks,

private boolean playing = false;   //global variable
private Camera mCamera;   //global variable

@Override
public void surfaceCreated(SurfaceHolder holder) {
cameraPlayStart();
}



@Override
public void cameraPlayStart() {
if (!playing) {
    mCamera.startPreview();
    playing = true;

    }
}

Answer 1

if (camera != null){
      try {
       camera.setPreviewDisplay(surfaceHolder);
       camera.startPreview();
       previewing = true;
      } catch (IOException e) {
       // TODO Auto-generated catch block
       e.printStackTrace();
      }

set prieview display of your surfaceview Hope this will help you ! Cheers !