SettingsActivity.java 文件源码

@SuppressWarnings("deprecation")
private void updateNotificationsEnabled() {
    boolean notificationsEnabled = ((TwoStatePreference) findPreference(KEY_PREF_NOTIFICATIONS_ENABLED)).isChecked();
    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
        findPreference(KEY_PREF_NOTIFICATIONS_CHANNEL).setEnabled(notificationsEnabled);
    } else {
        findPreference(KEY_PREF_NOTIFICATIONS_VIBRATE).setEnabled(notificationsEnabled);
        findPreference(KEY_PREF_NOTIFICATIONS_LED).setEnabled(notificationsEnabled);
    }
    findPreference(KEY_PREF_NOTIFICATIONS_DELAY).setEnabled(notificationsEnabled);
}