我使用以下代码示例将Instagram照片共享添加到我的iphone应用程序中:
我在代码示例和我的应用程序中遇到了同样的问题。 "打开"菜单出现在Instagram,iPhoto等中,但推送时没有任何应用程序打开。你们其中一个天才能看一看代码示例并告诉我我错过了什么吗?谢谢!
这是.h代码:
@interface ViewController : UIViewController<UIDocumentInteractionControllerDelegate>{
IBOutlet UIImageView *imageView;
}
@property(nonatomic,retain)UIDocumentInteractionController *docFile;
@property (nonatomic, retain) UIDocumentInteractionController *dic;
-(IBAction)saveToInstagram:(id)sender;
这里是.m代码:
@synthesize docFile = _docFile;
-(IBAction)saveToInstagram:(id)sender {
CGRect rect = CGRectMake(0 ,0 , 0, 0);
UIGraphicsBeginImageContextWithOptions(self.view.bounds.size, self.view.opaque, 0.0);
[self.view.layer renderInContext:UIGraphicsGetCurrentContext()];
UIGraphicsEndImageContext();
NSString *jpgPath = [NSHomeDirectory() stringByAppendingPathComponent:@"Documents/test.ig"];
NSURL *igImageHookFile = [[NSURL alloc] initWithString:[[NSString alloc] initWithFormat:@"file://%@", jpgPath]];
self.docFile.UTI = @"com.instagram.photo";
self.docFile = [self setupControllerWithURL:igImageHookFile usingDelegate:self];
self.docFile=[UIDocumentInteractionController interactionControllerWithURL:igImageHookFile];
[self.docFile presentOpenInMenuFromRect: rect inView: self.view animated: YES ];
NSURL *instagramURL = [NSURL URLWithString:@"instagram://media?id=MEDIA_ID"];
if ([[UIApplication sharedApplication] canOpenURL:instagramURL]) {
[self.docFile presentOpenInMenuFromRect: rect inView: self.view animated: YES ];
}
else {
NSLog(@"No Instagram Found");
}
}
- (UIDocumentInteractionController *) setupControllerWithURL: (NSURL*) fileURL usingDelegate: (id <UIDocumentInteractionControllerDelegate>) interactionDelegate {
UIDocumentInteractionController *interactionController = [UIDocumentInteractionController interactionControllerWithURL: fileURL];
interactionController.delegate = interactionDelegate;
return interactionController;
}
感谢。
答案 0 :(得分:0)
我不确定您如何构建文件NSURL实例,但是从代码中可以清楚地看出,您实际上并未保存所呈现的图像。
在致电UIGraphicsEndImageContext()
之前,您需要执行类似
UIImage* image = UIGraphicsGetImageFromCurrentImageContext();
然后像
NSData * imageData = UIImageJPEGRepresentation(image, 0.75);
[imageData writeToURL: igImageHookFile atomically:YES];