在IOS 7.1中使用imagepickcontroller 打开相机的时候执行
self.picker.delegate = self;
self.picker.sourceType = UIImagePickerControllerSourceTypeCamera;
self.picker.showsCameraControls = YES;
self.picker.modalPresentationStyle = UIModalPresentationOverCurrentContext;
self.picker.cameraViewTransform = CGAffineTransformMakeScale(1, 1);
[Controller presentViewController:_picker animated:YES completion:nil];
presentViewController命令中在输出这段命令是怎么回事,看的烦死了。网上的办法试过了,延迟执行。没用啊
Snapshotting a view that has not been rendered results in an empty snapshot. Ensure your view has been rendered at least once before snapshotting or snapshot after screen updates.