ios – 附加您的目录.它是什么？

概述对于iOS 7,我在将文件写入 Xcode 5中的AppSupport文件夹时遇到了麻烦. 我正在尝试做什么： NSArray *paths = NSSearchPathForDirectoriesInDomains(NSApplicationSupportDirectory, NSUserDomainMask, YES);NSString *plistPath = [[paths lastOb 对于iOS 7,我在将文件写入 Xcode 5中的AppSupport文件夹时遇到了麻烦.
我正在尝试做什么：

NSArray *paths = NSSearchPathForDirectorIEsInDomains(NSApplicationSupportDirectory,NSUserDomainMask,YES);Nsstring *pListPath = [[paths lastObject] stringByAppendingPathComponent:@“somedata.pList”];if(pListData) {    NSLog(@"PATH: %@",pListPath);    BOol success = [pListData writetofile:pListPath atomically:YES];    NSLog(@"SUCCESS: %hhd",success);}else {    NSLog(@"ERROR CREATING PList: %@",error);}

而我输出NO：

PATH: /var/mobile/Applications/40954....7E3C/library/Application Support/somedata.pListSUCCESS: 0

Apple文档说：

Use the Application Support directory constant NSApplicationSupportDirectory,appending your <bundle_ID> for: …

什么意思附加你的bundle_ID？可能还有另一条路我应该用？ NSdocumentDirectory不适合我,因为它是用户文件的位置.

解决方法 存储到NSApplicationSupportDirectory有点复杂,

按照此Apple sample code将文件写入此目录,

- (NSURL*)applicationDirectory{    Nsstring* bundleID = [[NSBundle mainBundle] bundleIDentifIEr];    NSfileManager*fm = [NSfileManager defaultManager];    NSURL* dirPath = nil;    // Find the application support directory in the home directory.    NSArray* appSupportDir = [fm URLsForDirectory:NSApplicationSupportDirectory                                        inDomains:NSUserDomainMask];    if ([appSupportDir count] > 0)    {        // Append the bundle ID to the URL for the        // Application Support directory        dirPath = [[appSupportDir objectAtIndex:0] URLByAppendingPathComponent:bundleID];        //ModifIEd code to write your pList file to the Application support dir        Nsstring *pListPath = [dirPath stringByAppendingPathComponent:@“somedata.pList”];        //Assuming pListData is pre-populated ivar        //Else add your code to create pListData here         if(pListData) {            BOol success = [pListData writetofile:pListPath atomically:YES];            NSLog(@"SUCCESS: %hhd",success);        }        else {            NSLog(@"ERROR CREATING PList: %@",error);        }    }}

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