Plist文件操作

gistfile1.m

/*
   先在项目中加好默认的设置，读取的时候如果没有就把默认的写入。
*/

#define FILE_NAME @"CONFIG"
#define FILE_TYPE @"plist"

// eg: cName shanghai
+ (void)setDefultCity:(NSString *)cName
{
    NSDictionary *dic = [CITYSManager getCityPlist];
    NSMutableDictionary *mutableDic = [NSMutableDictionary dictionaryWithDictionary:dic];
    NSString *defaultCity = [mutableDic objectForKey:@"default"];
    if ([defaultCity isEqualToString:cName]) {
        return;
    } else {
        [mutableDic setObject:cName forKey:@"default"];
        [mutableDic writeToFile:[CITYSManager pathFileDocument] atomically:YES];
    }
}

+ (NSDictionary *)getDefaultCity
{
    NSDictionary *rootDic = [CITYSManager getCityPlist];
    NSString *defaultKey = [rootDic objectForKey:@"default"];
    return [rootDic objectForKey:defaultKey];
}

- (NSDictionary *)readConfigPlistFile
{
    NSString *filePath = [self pathFileDocument];
    if ([[NSFileManager defaultManager] fileExistsAtPath:filePath]) {
        NSDictionary *dic = [[NSDictionary alloc] initWithContentsOfFile:filePath];
        return dic;
    }else {
        NSString *path = [[NSBundle mainBundle] pathForResource:FILE_NAME ofType:FILE_TYPE];
        NSDictionary *dicTemp = [[NSDictionary alloc] initWithContentsOfFile:path];
        [dicTemp writeToFile:filePath atomically:YES];
        NSDictionary *dic = [[NSDictionary alloc] initWithContentsOfFile:filePath];
        return dic;
    }
}

- (NSString *)pathFileDocument
{
    NSArray *arrayFiles = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
    NSString *docPath = [arrayFiles objectAtIndex:0];
    NSString *filePath = [docPath stringByAppendingPathComponent:[NSString stringWithFormat:@"%@.%@",FILE_NAME,FILE_TYPE]];
    return filePath;
}