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应用程序第一次运行时, 如何只显示一次视图?
原标题:How to display a view only once on application first run?
  • 时间:2012-05-27 15:12:40
  •  标签:
  • android

我想开发一个程序,在安装后有一次显示认证屏幕,然后在随后运行时显示其他屏幕。是否有办法做到这一点?

最佳回答

使用 sharedPreference 来存储 firstboot 值,并对照该值检查活动。 如果设定了该值, 那么应用程序之前就已经启动。 否则, 您将显示活动并在 firstrun 旗号中设置 < sharedPreference 。

例如,你的发射活动可能看起来是这样的,

public void onCreate(){
    boolean firstboot = getSharedPreference("BOOT_PREF", MODE_PRIVATE).getBoolean("firstboot", true);

    if (firstboot){
        // 1) Launch the authentication activity

        // 2) Then save the state
        getSharedPreference("BOOT_PREF", MODE_PRIVATE)
            .edit()
            .putBoolean("firstboot", false)
            .commit();
    }
}
问题回答

Using SharedPreference you can do that boolean flagmosque ;

public static void saveflagmosque(){
        SharedPreferences.Editor editor = sharedPref.edit();
        editor.putBoolean("mosque", false);
        editor.commit();
    }
    public boolean getflagmosque(){
        flagmosque = sharedPref.getBoolean("mosque", true);
        return flagmosque;
    }

在代码中

flagmosque = true ;
if(getflagmosque()){
your task that run only one time ;
}

您可以使用 < a href=> http:// developmenter.android.com/guide/topics/ data/ data-storage.html#pref" rel="nofollow" > 分享优惠 来做到这一点。 boolean 变量,如 is FirstTime ,可以看到你的工作。





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