Android監聽手機網絡變化 - 封起De日子

Android監聽手機網絡變化

Android監聽手機網絡變化

手機網絡狀态發生變化會發送廣播，利用廣播接收者，監聽手機網絡變化

效果圖

注冊廣播接收者

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="……" >

    ……

    <application
        …… >

        ……

        <!-- 監聽網絡狀态的廣播接收者 -->
        <receiver android:name=".receiver.NetworkBroadcastReceiver" >
            <intent-filter>
                <action android:name="android.net.conn.CONNECTIVITY_CHANGE" />
            </intent-filter>
        </receiver>

    </application>
</manifest>           

廣播接收者

package ……;

import ……;

/**
 * Created by kongqw on 2015/11/23.
 */
public class NetworkBroadcastReceiver extends BroadcastReceiver {
    @Override
    public void onReceive(Context context, Intent intent) {
        try {
            ConnectivityManager manager = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);
            NetworkInfo mobileInfo = manager.getNetworkInfo(ConnectivityManager.TYPE_MOBILE);
            NetworkInfo wifiInfo = manager.getNetworkInfo(ConnectivityManager.TYPE_WIFI);
            //如果無網絡連接配接activeInfo為null
            NetworkInfo activeInfo = manager.getActiveNetworkInfo();

            if (wifiInfo.isConnected()) {
                // wifi 網絡
                Log.i("Network", "wifi 網絡");
            } else if (mobileInfo.isConnected()) {
                // 手機網絡
                Log.i("Network", "手機網絡");
            } else if (null == activeInfo) {
                // 沒有網絡
                Log.i("Network", "沒有網絡");
            }
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}