iphone – 集成iOS6 facebook功能
发布时间:2020-12-14 17:39:17 所属栏目:百科 来源:网络整理
导读:我正在尝试使用iOS6 Facebook功能将我的应用程序的屏幕截图导出到Facebook.按下按钮时,如何在应用程序内部显示选项? 以下是我目前的代码.我想截取屏幕截图,同时使用iOS6 Facebook功能导出到Facebook. - (IBAction)export1:(id)sender{NSIndexPath *indexPat
我正在尝试使用iOS6 Facebook功能将我的应用程序的屏幕截图导出到Facebook.按下按钮时,如何在应用程序内部显示选项?
以下是我目前的代码.我想截取屏幕截图,同时使用iOS6 Facebook功能导出到Facebook. - (IBAction)export1:(id)sender{ NSIndexPath *indexPath = [NSIndexPath indexPathForRow:0 inSection:0]; [self.tableView scrollToRowAtIndexPath:indexPath atScrollPosition:UITableViewScrollPositionTop animated:YES]; exporting.hidden=YES; CGSize imageSize = [[UIScreen mainScreen] bounds].size; if (NULL != UIGraphicsBeginImageContextWithOptions) UIGraphicsBeginImageContextWithOptions(imageSize,NO,0); else UIGraphicsBeginImageContext(imageSize); CGContextRef context = UIGraphicsGetCurrentContext(); // Iterate over every window from back to front for (UIWindow *window in [[UIApplication sharedApplication] windows]) { if (![window respondsToSelector:@selector(screen)] || [window screen] == [UIScreen mainScreen]) { // -renderInContext: renders in the coordinate space of the layer,// so we must first apply the layer's geometry to the graphics context CGContextSaveGState(context); // Center the context around the window's anchor point CGContextTranslateCTM(context,[window center].x,[window center].y); // Apply the window's transform about the anchor point CGContextConcatCTM(context,[window transform]); // Offset by the portion of the bounds left of and above the anchor point CGContextTranslateCTM(context,-[window bounds].size.width * [[window layer] anchorPoint].x,-[window bounds].size.height * [[window layer] anchorPoint].y); // Render the layer hierarchy to the current context [[window layer] renderInContext:context]; // Restore the context CGContextRestoreGState(context); } } // Retrieve the screenshot image CGRect contentRectToCrop = CGRectMake(0,70,740,740); UIImage *image = UIGraphicsGetImageFromCurrentImageContext(); CGImageRef imageRef = CGImageCreateWithImageInRect([image CGImage],contentRectToCrop); UIImage *croppedImage = [UIImage imageWithCGImage:imageRef]; UIGraphicsEndImageContext(); UIImageWriteToSavedPhotosAlbum(croppedImage,nil,nil); 解决方法
Here是如何使用iOS6中内置的Facebook SDK轻松地将图像发布到Facebook.如果这对您有任何帮助,请感到高兴.快乐编码:)
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