我正在使用以下代码将 UIView 捕获为图像
-(void)startSnapSot {
NSLog(@"TakeSnapShot");
UIImage* image = nil;
// image = [self screenshot];
UIGraphicsBeginImageContext(overlayView.frame.size);
{
[overlayView.layer renderInContext: UIGraphicsGetCurrentContext()];
image = UIGraphicsGetImageFromCurrentImageContext();
}
UIGraphicsEndImageContext();
ALAssetsLibraryWriteImageCompletionBlock completionBlock = ^(NSURL *assetURL, NSError *error) {
if (error) {
NSLog(@"Error Saving Image");
}
else {
NSLog(@"Image Saved");
}
};
ALAssetsLibrary *library = [[ALAssetsLibrary alloc] init];
[library writeImageToSavedPhotosAlbum:[image CGImage]
orientation:(ALAssetOrientation)[image imageOrientation]
completionBlock:completionBlock];
}
但问题是它一次又一次地保存第一张图像,即它一次又一次地保存相同的图像而不是捕获不同的 UIIView 图像。有人可以让我知道我在做什么错吗?