4
我想在沒有iCloud的情況下使用UIDocument,當用戶禁用iCloud時。我有以下代碼:非iCloud使用UIDocument
NSURL *url;
if (_isiCloudEnabled) {
NSURL *ubiq = [[NSFileManager defaultManager] URLForUbiquityContainerIdentifier:nil];
url = [ubiq URLByAppendingPathComponent:[NSString stringWithFormat:@"%f.adoc",[[NSDate date] timeIntervalSince1970]]];
} else {
NSString *homeDirectoryPath = [NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES) objectAtIndex:0];
NSString *newFilePath = [homeDirectoryPath stringByAppendingPathComponent:[NSString stringWithFormat:@"%f.adoc", [[NSDate date] timeIntervalSince1970]]];
url = [NSURL URLWithString:newFilePath];
}
ASListyDocument *d = [[ASListyDocument alloc] initWithFileURL:url];
此代碼給我的錯誤:
*** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: 'must pass a valid file URL to -[UIDocument initWithFileURL:]'
任何想法,爲什麼?我查看了調試器中的URL - 它看起來有效。我試着在模擬器和手機上運行它 - 同樣的問題!
順便說一句,我使用iOS 5.0的設備上運行,以防萬一。
非常感謝!這解決了它! – 2012-04-19 12:16:28