MainActivity.java 文件源码

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    ButterKnife.bind(this);

    setSupportActionBar(toolbar);

    dayNightPreference = getSharedPreferences("settings", MODE_PRIVATE).getInt("prefDayNight", AppCompatDelegate.MODE_NIGHT_AUTO);

    if(savedInstanceState == null) {
        getSupportFragmentManager().beginTransaction().add(R.id.frame, new WatchersFragment(), "watchersFragment").commit();
    }

    settings = getSharedPreferences("settings", MODE_PRIVATE);
}