限制Android同步到WIFi

Question

我是Android新手,我正在尝试写一个SyncAdapter- 是否有可能限制SyncAdapter只在网络是WiFi(而不是3G等)时执行同步？

Answer 1

你可以检查无线网络

    ConnectivityManager cm = (ConnectivityManager) YourActivity.this.getSystemService(Context.CONNECTIVITY_SERVICE);
    NetworkInfo info = cm.getActiveNetworkInfo();

    if(info.getType()==ConnectivityManager.TYPE_WIFI)
    {
        System.out.println("WiFi Connected");
    }
    else
    {
            System.out.println("WiFi not connected");
    }

并在清单中添加权限

 <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"/>