Version check Tools

versionHelper

//将版本字符串转换为数字
+(int)getVersionNumber:(NSString*)version
{
    int versionNo = 0;
    
    NSArray *arr = [version componetsSeparateByString:@"."];
    int count = arr.count;    

    for(NSString *no in arr)
    {
        versionNo += no.intValue*pow(10,--count);        
    }
    return versionNo;
}

//检测当前是否是首次运行
-(BOOL)isFirstRunning
{
    NSString *localVersion = [[NSUserDefaults standardUserDefaults] objectForKey:@"localVersion"];
    NSString *appVersion = [[NSBundle mainBundle] objectForInfoDictionaryKey:@"CFBundleShortVersionString"];
    
    if ([localVersion isEqualToString:appVersion]) {
        return NO;
    }else{
        [[NSUserDefaults standardUserDefaults]setObject:appVersion forKey:@"localVersion"];
        return YES;
    }
}