我曾經在Multipeer集團提供聊天的示例應用程序的代碼和工作。您首先必須將文件寫入文檔目錄,然後發送該URL。
// Don't block the UI when writing the image to documents
dispatch_async(dispatch_get_global_queue(0, 0), ^{
// We only handle a still image
UIImage *imageToSave = (UIImage *)[info objectForKey:UIImagePickerControllerOriginalImage];
// Save the new image to the documents directory
NSData *pngData = UIImageJPEGRepresentation(imageToSave, 1.0);
// Create a unique file name
NSDateFormatter *inFormat = [NSDateFormatter new];
[inFormat setDateFormat:@"yyMMdd-HHmmss"];
NSString *imageName = [NSString stringWithFormat:@"image-%@.JPG", [inFormat stringFromDate:[NSDate date]]];
// Create a file path to our documents directory
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *filePath = [[paths objectAtIndex:0] stringByAppendingPathComponent:imageName];
[pngData writeToFile:filePath atomically:YES]; // Write the file
// Get a URL for this file resource
NSURL *imageUrl = [NSURL fileURLWithPath:filePath];
MCPeerID *peer = self.session.connectedPeers[0];
[self.session sendResourceAtURL:imageUrl withName:imageName toPeer:peer withCompletionHandler:^(NSError *error) {
if (error) {
NSLog(@"Failed to send picture to %@, %@", peer.displayName, error.localizedDescription);
return;
}
NSLog(@"Sent picture to %@", peer.displayName);
//Clean up the temp file
NSFileManager *fileManager = [NSFileManager defaultManager];
[fileManager removeItemAtURL:imageUrl error:nil];
}];
});
您確認'refURL'實際上是一個指向有效資源的NSURL對象嗎? – ChrisH
是的,它是由圖像選擇器瀏覽器選取的圖像。如果我登錄它,我會得到_assets-library://asset/asset.PNG?id = EE8FE14C-63FF-4D8B-BB12-3E97506C2188&ext = PNG_。所以正如我提到的,我必須以不同的方式構建該對象的URL。例如,通過使用ALAssetsLibrary,我可以獲取圖像的名稱。 – user2950891
您可以粘貼將URL分配給'refURL'變量的整個方法嗎? – Yazid