寫入相冊需要導入的頭文件： #import <AssetsLibrary/AssetsLibrary.h>
...
1. iOS7之后的截屏方法，返回view
??? UIView *view = [self.view snapshotViewAfterScreenUpdates:YES]; ??? [self.view addSubview:view];
2. 返回UIImage的截屏方法
/**
?*? 截屏
?*
?*? @param view 需要截屏的視圖
?*
?*? @return 截屏后的圖片
?*/
- (UIImage *)captureImageInView:(UIView *)view
{
??? UIGraphicsBeginImageContextWithOptions(view.bounds.size, YES, 0);
??? [view.layer renderInContext:UIGraphicsGetCurrentContext()];
??? UIImage *viewImage = UIGraphicsGetImageFromCurrentImageContext();
??? UIGraphicsEndImageContext();
??? CGImageRef imageRef = viewImage.CGImage;
??? CGRect rect = view.bounds;? // 在view上的截圖的區(qū)域
??? CGImageRef imageRefRect =CGImageCreateWithImageInRect(imageRef, rect);
??? UIImage *sendImage = [[UIImage alloc] initWithCGImage:imageRefRect];
??? NSData *imageViewData = UIImagePNGRepresentation(sendImage);
???
??? NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
??? NSString *documentsDirectory = [paths objectAtIndex:0];
??? NSString *savedImagePath = [documentsDirectory stringByAppendingPathComponent:@"result.png"];
??? NSLog(@"%@", savedImagePath);
??? [imageViewData writeToFile:savedImagePath atomically:YES];
??? CGImageRelease(imageRefRect);
???
??? return viewImage; }
3. 寫入相冊
// 寫入相冊
- (void)saveToLibratyWithImage:(UIImage *)image
{
??? ALAssetsLibrary *library = [[ALAssetsLibrary alloc] init];
??? [library writeImageToSavedPhotosAlbum:[image CGImage]
????????????????????????????? orientation:(ALAssetOrientation)[image imageOrientation]
????????????????????????? completionBlock:^(NSURL *assetURL, NSError *error){ ? ? ? ? ? ? ? ? ? ? ? ?? ????????????????????????? }]; }
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