MainActivity如下:

package cc.testwifi;

import android.os.Bundle;

import android.app.Activity;

/**

* Demo描述:

* 監(jiān)聽Wifi網絡的變化并且獲得當前信號強度

*

*

*/

public class MainActivity extends Activity {

@Override

protected void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.main);

}

}

WifiChangeBroadcastReceiver如下:

package cc.testwifi;

import android.content.BroadcastReceiver;

import android.content.Context;

import android.content.Intent;

import android.net.wifi.WifiInfo;

import android.net.wifi.WifiManager;

public class WifiChangeBroadcastReceiver extends BroadcastReceiver {

private Context mContext;

@Override

public void onReceive(Context context, Intent intent) {

mContext=context;

System.out.println("Wifi發(fā)生變化");

getWifiInfo();

}

private void getWifiInfo() {

WifiManager wifiManager = (WifiManager) mContext.getSystemService(mContext.WIFI_SERVICE);

WifiInfo wifiInfo = wifiManager.getConnectionInfo();

if (wifiInfo.getBSSID() != null) {

//wifi名稱

String ssid = wifiInfo.getSSID();

//wifi信號強度

int signalLevel = WifiManager.calculateSignalLevel(wifiInfo.getRssi(), 5);

//wifi速度

int speed = wifiInfo.getLinkSpeed();

//wifi速度單位

String units = WifiInfo.LINK_SPEED_UNITS;

System.out.println("ssid="+ssid+",signalLevel="+signalLevel+",speed="+speed+",units="+units);

}

}

}

AndroidManifest.xml如下:

main.xml如下:

總結

以上是生活随笔為你收集整理的android 信号强度变化,Android监听WIFI网络的变化并且获得当前信号强度的全部內容，希望文章能夠幫你解決所遇到的問題。

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