Android静态注册广播receiver检测WIFI连接状况变化

叁歲伎倆 2023-10-16 22:31 113阅读 0赞

**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。

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";
    
    	@Override
    	public 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][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][http_blog.csdn.net_zhangphil_article_details_43795063]

[http_blog.csdn.net_zhangphil_article_details_43800909]: http://blog.csdn.net/zhangphil/article/details/43800909
[http_blog.csdn.net_zhangphil_article_details_43795063]: http://blog.csdn.net/zhangphil/article/details/43795063