通过camera控制闪光灯

if(camera == null){
camera = Camera.open();

<span style="white-space:pre">	</span>public static void turnOn(Camera mCamera) {
Parameters mParameters = mCamera.getParameters();
mParameters.setFlashMode(Parameters.FLASH_MODE_TORCH);
mCamera.setParameters(mParameters);
mCamera.startPreview();
}
public static void turnOff(Camera mCamera) {
Parameters mParameters = mCamera.getParameters();
mParameters.setFlashMode(Parameters.FLASH_MODE_OFF);
mCamera.setParameters(mParameters);
}
<span style="white-space:pre">	</span>camera.release();