java - Android 首次使用屏幕

Question

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Answer 1

查看 SharedPreferences。这很简单。

    SharedPreferences preferences = PreferenceManager.getDefaultSharedPreferences(this);

    boolean firstOpened = preferences.getBoolean("first_opened", true);

    if(firstOpenened) {

         showWelcomeScreen();

         SharedPreferences.Editor editor = preferences.edit();
         editor.putBoolean("first_opened", false);
         editor.apply();
    }