Android静态注册广播receiver检测WIFI连接状况变化

Android静态注册广播receiver检测WIFI连接状况变化

在AndroidManifest.xml静态注册一个receiver，增加对WiFi状态变化时候Android系统发送的广播事件过滤器，从而达到监听、检测WiFi状态变化。

 <receiver android:name="zhangphil.wifi.WIFIStateChangedBroadcastReceiver" >            <intent-filter>                <action android:name="android.net.wifi.STATE_CHANGE" />                <action android:name="android.net.wifi.WIFI_STATE_CHANGED" />            </intent-filter>        </receiver>

完成相关广播接收器：

package zhangphil.wifi;import android.content.BroadcastReceiver;import android.content.Context;import android.content.Intent;import android.net.NetworkInfo;import android.net.wifi.WifiInfo;import android.net.wifi.WifiManager;import android.util.Log;public class WIFIStateChangedBroadcastReceiver extends BroadcastReceiver {private final String tag = "WIFI链接状况";@Overridepublic void onReceive(Context context, Intent intent) {if (intent.getAction().equals(WifiManager.NETWORK_STATE_CHANGED_ACTION)) {NetworkInfo info = intent.getParcelableExtra(WifiManager.EXTRA_NETWORK_INFO);if (info.getState().equals(NetworkInfo.State.CONNECTED)) {WifiManager wifiManager = (WifiManager) context.getSystemService(Context.WIFI_SERVICE);WifiInfo wifiInfo = wifiManager.getConnectionInfo();// 当前WIFI名称Log.d(tag, "连接到WIFI " + wifiInfo.getSSID());}}if (intent.getAction().equals(WifiManager.WIFI_STATE_CHANGED_ACTION)) {int wifistate = intent.getIntExtra(WifiManager.EXTRA_WIFI_STATE, WifiManager.WIFI_STATE_DISABLED);if (wifistate == WifiManager.WIFI_STATE_DISABLED) {Log.d(tag, "WIFI关闭");}if (wifistate == WifiManager.WIFI_STATE_ENABLED) {Log.d(tag, "WIFI开启");}}}}

增加权限：

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

附录相关文章：
【文章1】《Android判断设备是否打开WIFI、GPRS数据连接》链接地址：http://blog.csdn.net/zhangphil/article/details/43800909
【文章2】《Android检查设备是否联网》链接地址：http://blog.csdn.net/zhangphil/article/details/43795063

更多相关文章

随机推荐