保存图片到系统相册

- (void)saveImageToPhotos:(UIImage*)savedImage

{

UIImageWriteToSavedPhotosAlbum(savedImage, self, @selector(image:didFinishSavingWithError:contextInfo:), NULL);

}

// 指定回调方法

- (void)image: (UIImage *) image didFinishSavingWithError: (NSError *) error contextInfo: (void *) contextInfo

{

NSString *msg = nil ;

if(error != NULL){

msg = @"保存图片失败" ;

}else{

msg = @"保存图片成功" ;

}

UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"保存图片结果提示"

message:msg

delegate:self

cancelButtonTitle:@"确定"

otherButtonTitles:nil];

[alert show];

}