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android 管理wifi，androidwifi
activity_main.xml
<?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:layout_height="match_parent" android:orientation="vertical" > <Button android:id="@+id/openwifi" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="开启WiFi" /> <Button android:id="@+id/closewifi" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="关闭WiFi" /> <Button android:id="@+id/wifistate" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="WiFi状态" /> </LinearLayout>
package com.example.yanlei.wifi; import android.content.Context; import android.net.wifi.WifiManager; import android.os.Bundle; import android.support.v7.app.AppCompatActivity; import android.view.View; import android.view.View.OnClickListener; import android.widget.Button; import android.widget.Toast; public class MainActivity extends AppCompatActivity { private Button btnOpen = null; private Button btnClose = null; private Button btnState = null; private WifiManager wifi = null; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); btnOpen = (Button) super.findViewById(R.id.openwifi); btnClose = (Button) super.findViewById(R.id.closewifi); btnState = (Button) super.findViewById(R.id.wifistate); //获取Wifi服务 wifi = (WifiManager) super.getSystemService(Context.WIFI_SERVICE); //开启 btnOpen.setOnClickListener(new OnClickListener() { public void onClick(View v) { wifi.setWifiEnabled(true); Toast.makeText(getApplicationContext(), "开启Wifi服务!", Toast.LENGTH_LONG).show(); } }); //关闭 btnClose.setOnClickListener(new OnClickListener() { public void onClick(View v) { wifi.setWifiEnabled(false); Toast.makeText(getApplicationContext(), "关闭Wifi服务!", Toast.LENGTH_LONG).show(); } }); //状态 btnState.setOnClickListener(new OnClickListener() { public void onClick(View v) { Toast.makeText(getApplicationContext(), "Wifi状态:" + String.valueOf(wifi.getWifiState()), Toast.LENGTH_LONG).show(); } }); } }
权限
<?xml version="1.0" encoding="utf-8"?> <manifest xmlns:android="http://schemas.android.com/apk/res/android" package="com.example.yanlei.wifi" > <uses-permission android:name="android.permission.CHANGE_WIFI_STATE"/> <uses-permission android:name="android.permission.ACCESS_WIFI_STATE"/> <application android:allowBackup="true" android:icon="@mipmap/ic_launcher" android:label="@string/app_name" android:theme="@style/AppTheme" > <activity android:name=".MainActivity" android:label="@string/app_name" > <intent-filter> <action android:name="android.intent.action.MAIN" /> <category android:name="android.intent.category.LAUNCHER" /> </intent-filter> </activity> </application> </manifest>
参考：http://blog.csdn.net/jianghuiquan/article/details/8641123