//界面截取方法
+ (instancetype)captureWithView:(UIView *)view
{// 1.開啓上下文
UIGraphicsBeginImageContextWithOptions(view.frame.size, NO, 0.0);
// 2.將控制器view的layer渲染到上下文
[view.layer renderInContext:UIGraphicsGetCurrentContext()];
// 3.取出圖片
UIImage *newImage = UIGraphicsGetImageFromCurrentImageContext();
// 4.結束上下文
UIGraphicsEndImageContext();
return newImage;
}
- (void)save {
// 1.截圖
UIImage *image = [UIImage captureWithView:self.view];
// 2.保存到圖片
UIImageWriteToSavedPhotosAlbum(image, self, @selector(image:didFinishSavingWithError:contextInfo:), nil);
}
/**
保存圖片操作之後就會調用
*/
- (void)image:(UIImage *)image didFinishSavingWithError:(NSError *)error contextInfo:(void *)contextInfo
{
if (error) { // 保存失敗
[MBProgressHUD showError:@"保存失敗"];
} else { // 保存成功
[MBProgressHUD showSuccess:@"保存成功"];
}
}