android.net.wifi.WIFI_STATE_CHANGED没有播出

时间:2013-07-29 16:20:13

标签: android networking broadcastreceiver

在我的应用中,如果连接了网络更改,我需要重新启动服务。目前它只能以一种方式工作(wifi到移动数据),但它不能以其他方式工作(移动数据到wifi。)为什么会这样?是因为我没有在我的广播接收器中获得android.net.wifi.WIFI_STATE_CHANGED或者可能是错位的许可?

感谢您的帮助。

代码: 收件人的清单条目:

<receiver
    android:name="LiveForever"
    android:label="NetworkChangeReceiver" >
    <intent-filter>
        <action android:name="android.net.conn.CONNECTIVITY_CHANGE" />
        <action android:name="android.net.wifi.WIFI_STATE_CHANGED" />
    </intent-filter>
</receiver>

接收器本身:

public static final int TYPE_WIFI = 1;
public static final int TYPE_MOBILE = 2;
public static final int TYPE_NOT_CONNECTED = 0;
public static final String PREFS_NAME = "cakecloudpreferences";

@Override
public void onReceive(Context context, Intent intent) {
    SharedPreferences settings = context.getSharedPreferences(PREFS_NAME, 0);
    if (getConnectivityStatus(context)!=0&&!settings.getBoolean("osmframerunning",false)) {
        context.stopService(new Intent(context, OSMFrame.class));
        settings.edit().putBoolean("osmframerunning",false).commit();
        Intent frameintent = new Intent(context,OSMFrame.class);
        frameintent.putExtra("username",settings.getString("usr",""));
        frameintent.putExtra("password",settings.getString("pswd",""));
        frameintent.putExtra("uid",settings.getString("uid",""));
        context.startService(frameintent);
        Log.i("CCLiveForever","LiveForever Triggered, OSMFrame restarted.");
    }
}

public int getConnectivityStatus(Context context) {
    ConnectivityManager cm = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);
    NetworkInfo activeNetwork = cm.getActiveNetworkInfo();
    if (null != activeNetwork) {
        if(activeNetwork.getType() == ConnectivityManager.TYPE_WIFI) return TYPE_WIFI;
        if(activeNetwork.getType() == ConnectivityManager.TYPE_MOBILE) return TYPE_MOBILE;
    } 
    return TYPE_NOT_CONNECTED;
}

我列出的相关权限:

  • android.permission.ACCESS_WIFI_STATE
  • android.permission.ACCESS_NETWORK_STATE
  • android.permission.INTERNET对

再次,谢谢!

1 个答案:

答案 0 :(得分:13)

仅当启用或禁用WiFi时才会发送

android.net.wifi.WIFI_STATE_CHANGED。如果您希望在连接到WiFi网络或从WiFi网络断开连接时接收广播事件,则还需要捕获android.net.wifi.STATE_CHANGE