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：
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.plist SUCCESS: 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);
}
}
}