WCSession文件传输问题
WCSession文件传输问题
提问于 2016-01-11 01:52:50
我有一个问题，发送文件到苹果手表从父设备。有时文件经过并被完全解析。其他时候，它开始文件传输，但是失败了，甚至从来没有通知过Apple上的session:(WCSession *)session didReceiveFile:(WCSessionFile *)file方法。
以下是父设备代码：
- (void)sendLiveAudioRecording
{
NSError *moveError;
NSFileManager *fileManager = [NSFileManager defaultManager];
NSURL *groupURL = [fileManager containerURLForSecurityApplicationGroupIdentifier: @"group.myCompany.myApp"];
NSURL *permanentURL = [groupURL URLByAppendingPathComponent: @"PhoneToWatch.mp4"];
[FileSystem_Helper removeFile: [permanentURL path]];
[fileManager moveItemAtURL: [self fileURL] toURL: permanentURL error: &moveError];
if (!moveError)
{
if ([WCSession isSupported])
{
[[WCSession defaultSession] setDelegate: self];
[[WCSession defaultSession] activateSession];
if ([[WCSession defaultSession] isReachable])
{
NSLog(@"File Is Being Transferred: %@", [permanentURL path]);
[[WCSession defaultSession] transferFile: permanentURL metadata: nil];
}
else
{
[self createAlertWithTitle: @"Error" andMessage: @"WCSession Not Reachable"];
}
}
else
{
[self createAlertWithTitle: @"Error" andMessage: @"WCSession Not Supported"];
}
}
else
{
NSLog(@"%@", [moveError localizedDescription]);
}
}这是Apple Watch的代码：
-(void) session:(WCSession *)session didReceiveFile:(WCSessionFile *)file
{
NSData *fileData = [NSData dataWithContentsOfURL: [file fileURL]];
WKAudioFileAsset *asset = [WKAudioFileAsset assetWithURL: [file fileURL]];
NSURL *fileLocation = [FileSystem_Helper writeAudioToAppGroupsWithData: fileData withName: @"FromPhone.mp4"];
NSLog(@"%@", [file fileURL]);
NSLog(@"%@", [fileLocation path]);
[FileSystem_Helper removeFile: [[file fileURL] path]];
NSError *writingError;
if (!writingError)
{
[self playURL: fileLocation withDuration: [asset duration]];
}
else
{
[WKAlertViewController_Helper showWKAlertControllerWithTitle: @"Audio Receive Failed" andMessage: [writingError localizedDescription] andButtonTitle: @"Ok" onController: self];
}
}我甚至不确定它是否与代码本身有任何关系。我认为文件传输有时会失败，但我找不到任何地方打印要调试的错误。
有人能给我一些洞察力吗？
iOS 9.2 & WatchOS 2.1
以下是来自FileSystem_Helper removeFile：(NSString *)filePath的代码
+ (void) removeFile: (NSString *)filePath
{
NSFileManager *fileManager = [NSFileManager defaultManager];
if ([fileManager fileExistsAtPath: filePath])
{
NSError *error;
if (![fileManager removeItemAtPath: filePath error:&error])
{
NSLog(@"Error removing file: %@", error);
}
}
}这是FileSystem_Helper writeAudioToAppGroupsWithData
+ (void)writeAudioToAppGroupsWithData: (NSData *)audioData withName: (NSString *)name
{
// Writing the audio data to the App Groups
NSURL *URL = [[NSFileManager defaultManager] containerURLForSecurityApplicationGroupIdentifier: @"group.myCompany.myApp"];
NSURL *containerURL = [URL URLByAppendingPathComponent: name];
[audioData writeToURL: containerURL atomically: YES];
}回答 1
Stack Overflow用户
回答已采纳
发布于 2016-04-29 12:19:36
文件传输在watchOS 2.2上是错误的。它可能会固定在下一个版本上。有关更多证词，请参见https://forums.developer.apple.com/thread/43596。
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原文链接：
https://stackoverflow.com/questions/34713062
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