无法将数据保存在Documents iPhone的子目录中
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我想在iPhone中创建一个子目录（Document / MyFolder）。我可以创建子目录，但不能在子目录中保存数据。这是我的代码
NSDateFormatter *dateFormat = [[NSDateFormatter alloc] init];
[dateFormat setDateFormat:@\"YYYYMMDD_HHMMSS\"];
NSDate *date = [[NSDate alloc] init];
NSString *currentDate = [dateFormat stringFromDate:date];
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentsDirectory = [paths objectAtIndex:0];
NSString *tileImageName = [NSString stringWithFormat:@\"%@%@\",currentDate,@\".png\"];
NSString *dataPath = [documentsDirectory stringByAppendingPathComponent:@\"/MyFolder\"];
if (![[NSFileManager defaultManager] fileExistsAtPath:dataPath]){
[[NSFileManager defaultManager] createDirectoryAtPath:dataPath withIntermediateDirectories:NO attributes:nil error:nil];
}
NSData* data = UIImagePNGRepresentation(tileImage);
[data writeToFile:dataPath atomically:YES];
[dateFormat release];
[date release];
没有找到相关结果
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1 个回复
卧沫
不包含。您应该定义一个“ 3”以包括“ 2”。应该是NSString * tileImageName = [NSString stringWithFormat:@\"%@%@\",currentDate,@\".png\"]; NSString * dataPath = [documentsDirectory stringByAppendingPathComponent:@\"MyFolder\"]; NSString * tileImagePath = [dataPath stringByAppendingPathComponent:tileImageName]; if (![[NSFileManager defaultManager] fileExistsAtPath:dataPath]){ [[NSFileManager defaultManager] createDirectoryAtPath:dataPath withIntermediateDirectories:NO attributes:nil error:nil]; } NSData * data = UIImagePNGRepresentation(tileImage); [data writeToFile:tileImagePath atomically:YES];就像，而不是您想要的。