android - 使用CheckBoxPreference切换手机的声音，振动和互联网访问的开/关

Question

如何使用Android中的CheckBoxPreference切换整个系统的声音，振动，数据连接和wifi？
我想在我的应用程序中正在运行 Activity 时禁用这些功能。

Answer 1

我想到了。

在res/xml/preferences.xml中添加CheckBoxPreferences:

    <CheckBoxPreference
        android:defaultValue="false"
        android:key="pref_disableSoundAndVibration"
        android:title="Disable sound and vibration" />
    <CheckBoxPreference
        android:defaultValue="false"
        android:key="pref_disableWifi"
        android:title="Disable Wi-Fi" />

在您的MainActivity中，添加两个 bool(boolean) 成员来存储音频和wifi复选框状态，并为铃声状态(静音，振动，声音)添加一个整数。

protected void onCreate(Bundle savedInstanceState) {
    ...
    mDisableSoundAndVibration = mPref.getBoolean("pref_disableSoundAndVibration", false);
    AudioManager aManager=(AudioManager)getSystemService(AUDIO_SERVICE);
    mRingerMode = aManager.getRingerMode();

    mDisableWifi = mPref.getBoolean("pref_disableWifi", false);
    WifiManager wifiManager  = (WifiManager)this.getSystemService(WIFI_SERVICE);
    mWifiMode = wifiManager.isWifiEnabled();
    ...
    if (savedInstanceState != null) {
        mDisableSoundAndVibration = savedInstanceState.getBoolean("disableSoundAndVibration");
        mDisableWifi = savedInstanceState.getBoolean("disableWifi");
...
}

public void onSharedPreferenceChanged(SharedPreferences sharedPreferences, String s) {
    ...
    mDisableSoundAndVibration = mPref.getBoolean("pref_disableSoundAndVibration", false);
    mDisableWifi = mPref.getBoolean("pref_disableWifi", false);
    ...
}
protected void onSaveInstanceState(Bundle outState) {
    ...
    outState.putBoolean("disableSoundAndVibration", mDisableSoundAndVibration);
    outState.putInt("ringerMode", mRingerMode);
    outState.putBoolean("disableWifi", mDisableWifi);
    ....
}

如果要暂时禁用声音和Wi-Fi并保持初始状态，请执行以下操作:

    if (mDisableSoundAndVibration){
        AudioManager aManager=(AudioManager)getSystemService(AUDIO_SERVICE);
        aManager.setRingerMode(aManager.RINGER_MODE_SILENT);
            }
    if (mDisableWifi){
        WifiManager wifiManager  = (WifiManager)this.getSystemService(this.WIFI_SERVICE);
        wifiManager.setWifiEnabled(false);
            }

然后恢复初始值:

    if (mDisableSoundAndVibration){
        AudioManager aManager=(AudioManager)getSystemService(AUDIO_SERVICE);
        aManager.setRingerMode(mRingerMode);
    }
    if(mDisableWifi){
        WifiManager wifiManager = (WifiManager)this.getSystemService(WIFI_SERVICE);
        wifiManager.setWifiEnabled(mWifiMode);
    }