[Résolu] Définir et lancer l'aperçu sous Android

public void setCamera(Camera camera) {
    if (mCamera == camera) { return; }
    
    stopPreviewAndFreeCamera();
    
    mCamera = camera;
    
    if (mCamera != null) {
        List<Size> localSizes = mCamera.getParameters().getSupportedPreviewSizes();
        mSupportedPreviewSizes = localSizes;
        requestLayout();
      
        try {
            mCamera.setPreviewDisplay(mHolder);
        } catch (IOException e) {
            e.printStackTrace();
        }
      
        /*
          Important: Call startPreview() to start updating the preview surface. Preview must 
          be started before you can take a picture.
          */
        mCamera.startPreview();
    }
}