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我有一個文件路徑,我需要在NSData中獲取文件的數據。我使用:NSData dataWithContentOfFile返回nil?
NSError *err = nil;
NSData *d = [NSData dataWithContentsOfFile:file options:nil error:&err];
NSLog(@"error: %@", err);
錯誤是:
Error Domain=NSCocoaErrorDomain Code=260 "The operation couldn’t be completed. (Cocoa error 260.)" UserInfo=0x34a8f0 {NSFilePath=file://localhost/var/mobile/Applications/A19223D4-0AEF-4677-8EDD-0D2CA9A7BB73/Documents/12-03-25%2022:10:48--cc.mp4, NSUnderlyingError=0x34a560 "The operation couldn’t be completed. No such file or directory"}
但文件/目錄不存在的,因爲我在播放視頻文件,它工作得很好:
MPMoviePlayerViewController *controller = [[MPMoviePlayerViewController alloc] initWithContentURL:[NSURL URLWithString:[video filepath]]];
[self presentMoviePlayerViewControllerAnimated:controller];
是什麼出錯了? 謝謝
在NSString上有一個方便的方法可以讓我刪除file:// localhost – 0xSina 2012-03-27 19:16:56
不要簡單地刪除「file:// localhost」前綴。使用'NSString * path = [[NSURL URLWithString:file] path];'將文件URL轉換爲unix路徑。 – 2012-03-27 19:21:57
是的,在NSURL類中你有[url path]。但你有url作爲字符串,所以你必須首先創建url:NSURL * url = [NSURL URLWithString:yourURLString] – LuisEspinoza 2012-03-27 19:26:24