我正在尝试使用以下代码将照片从应用程序导出到Instagram：
// Capture Screenshot
UIGraphicsBeginImageContextWithOptions(self.view.frame.size,self.view.opaque,0.0);
[self.view.layer renderInContext:UIGraphicsGetCurrentContext()];
UIImage * image = UIGraphicsGetImageFromCurrentImageContext();
UIGraphicsEndImageContext();
NSData *imageData = UIImageJPEGRepresentation(image, 1.0);
NSString *jpgPath = [NSHomeDirectory() stringByAppendingPathComponent:@"Documents/test.igo"];
NSURL *igImageHookFile = [[NSURL alloc] initWithString:[[NSString alloc] initWithFormat:@"file://%@", jpgPath]];
dic = [UIDocumentInteractionController interactionControllerWithURL:[NSURL fileURLWithPath:igImageHookFile]];
dic.UTI = @"com.instagram.photo";
dic.annotation = [NSDictionary dictionaryWithObject:@"my caption" forKey:@"InstagramCaption"];
NSURL *instagramURL = [NSURL URLWithString:@"instagram://app"];
if ([[UIApplication sharedApplication] canOpenURL:instagramURL]) {
[[UIApplication sharedApplication] openURL:instagramURL];
} else {
NSLog(@"No Instagram Found");
}
但这是行不通的。它崩溃并显示以下错误：
2013-01-19 20：40：41.948 Ayat [12648：c07] *由于未捕获的异常'NSInvalidArgumentException'而终止应用程序，原因：'*-[NSURL initFileURLWithPath：]：零字符串参数'
我不确定我是否正确：
1-将jpgpath保存为我拍摄的屏幕截图。
2-将“ dic”文档传递到Instagram。
最佳答案
在我的应用程序中，我还将照片导出到Instagram。 （图片必须大于612x612尺寸）
试试这个代码：
-(void)shareImageOnInstagram:(UIImage*)shareImage
{
//Remember Image must be larger than 612x612 size if not resize it.
NSURL *instagramURL = [NSURL URLWithString:@"instagram://app"];
if([[UIApplication sharedApplication] canOpenURL:instagramURL])
{
NSString *documentDirectory=[NSHomeDirectory() stringByAppendingPathComponent:@"Documents"];
NSString *saveImagePath=[documentDirectory stringByAppendingPathComponent:@"Image.ig"];
NSData *imageData=UIImagePNGRepresentation(shareImage);
[imageData writeToFile:saveImagePath atomically:YES];
NSURL *imageURL=[NSURL fileURLWithPath:saveImagePath];
UIDocumentInteractionController *docController=[[UIDocumentInteractionController alloc]init];
docController.delegate=self;
[docController retain];
docController.UTI=@"com.instagram.photo";
docController.annotation=[NSDictionary dictionaryWithObjectsAndKeys:@"Image Taken via @App",@"InstagramCaption", nil];
[docController setURL:imageURL];
[docController presentOpenInMenuFromBarButtonItem:self.navigationItem.rightBarButtonItem animated:YES]; //Here try which one is suitable for u to present the doc Controller. if crash occurs
}
else
{
NSLog (@"Instagram not found");
}
}
希望对您有帮助。