第二次发布后制作UIAlertView节目

问题描述

如果那是不可能的，那么我应该怎么做呢，比如3分钟的app使用？这将用于Rate Us警报，但我宁愿用户有一些时间实际使用该应用程序，然后要求他们评分。

If that isn't possible, then how may I do it after, say, 3 minutes of app usage? This is going to be used for a Rate Us alert but I would rather the user have some time to actually use the app before it asks for them to rate.

推荐答案

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)options {
    // ...
    if ([self plusPlusLaunchCount] == 2) {
        [self showRateUsAlert];
    }
    return YES;
}

- (void)showRateUsAlert {
    // show the Rate Us alert view
}

- (NSInteger)plusPlusLaunchCount {
    static NSString *Key = @"launchCount";
    NSInteger count = 1 + [[NSUserDefaults standardUserDefaults] integerForKey:Key];
    [[NSUserDefaults standardUserDefaults] setInteger:count forKey:Key];
    return count;
}

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