基于安卓9的wifi自动连接和校园网自动连接程序
作者：互联网
实现目的，我校校园网需要先打开wlan在选择连接到指定wifi，然后会弹出一个认证界面，输入账号密码才可登入，于是自然而然的想能不能完成自动处理，做到一键登入，于是写了这个程序。
打开该程序后能自打开wlan，扫描周围的wifi，根据ssid找到要连接的wifi，自动尝试连接，连接后get请求认证页面来认证。
注意安卓10以上无法运行（因为我手机是安卓9，以此来开发的，然后发现这些组件后面被弃用了，因此代码基本也只是自用，账号密码在代码里面写死了）
MainActivity
package com.example.http;
import androidx.appcompat.app.AppCompatActivity;
import androidx.core.app.ActivityCompat;
import android.app.Activity;
import android.content.pm.PackageManager;
import android.net.wifi.ScanResult;
import android.net.wifi.WifiConfiguration;
import android.net.wifi.WifiInfo;
import android.net.wifi.WifiManager;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import java.io.IOException;
import java.util.List;
import okhttp3.Call;
import okhttp3.OkHttpClient;
import okhttp3.Request;
import okhttp3.Response;
public class MainActivity extends AppCompatActivity {
WifiManager wifiManager;
List<ScanResult> scanResult;
List<WifiConfiguration> wifiConfiguration;
String ip;
private OkHttpClient okHttpClient;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
okHttpClient = new OkHttpClient();
connectedWifi(this);
WifiInfo wifiInfo = wifiManager.getConnectionInfo();
int ipAddress = wifiInfo.getIpAddress();
ip = intToIp(ipAddress);
}
public void no(View view) {
new Thread() {
@Override
public void run() {
Request myre = new Request.Builder().url("注销的get url").build();
Log.e("TEST", "no");
Call call = okHttpClient.newCall(myre);
try {
Response response = call.execute();
Log.e("TEST", response.body().string());
} catch (IOException e) {
e.printStackTrace();
}
}
}.start();
}
public void get(View view) {
new Thread() {
@Override
public void run() {
Request myre = new Request.Builder().url("登入的get url").build();
Log.e("TEST", "get");
Call call = okHttpClient.newCall(myre);
try {
Response response = call.execute();
Log.e("TEST", response.body().string());
} catch (IOException e) {
e.printStackTrace();
}
}
}.start();
}
private void connectedWifi(MainActivity context) {
String[] permission = new String[]{
"ACCESS_FINE_LOCATION"
,"ACCESS_COARSE_LOCATION"
};
Permissions.checkPermission(this , permission);
wifiManager = (WifiManager) context.getSystemService(WIFI_SERVICE);
int wifiId;
openWifi();
Log.e("TEST","ok");
while (!wifiManager.isWifiEnabled()) //等待到WiFi开了
{ Log.e("TEST","a");}
if (wifiManager.isWifiEnabled()) {
wifiManager.startScan();
scanResult = wifiManager.getScanResults();
Log.e("TEST", "扫描出的热点数量：" + String.valueOf(scanResult.size()));
wifiConfiguration = wifiManager.getConfiguredNetworks(); //得到配置好的网络列表
if ((wifiId = isConfiguration("\"NTU\"")) == -1) {
Log.i("Debug", "需要添加配置");
//加入了密码
wifiId = addWifiConfig(scanResult, "NTU","");
} else
Log.i("Debug", "不需要添加");
if (wifiId != -1) {
if(connectWifi(wifiId)){
Log.i("Debug","连接成功！");
}
else {
Log.i("Debug","连接失败！");
}
}
}
else{
Log.i("Debug","未打开wifi");
}
}
/**
* 打开Wifi
*/
private boolean openWifi() {
if (!wifiManager.isWifiEnabled()) {
return wifiManager.setWifiEnabled(true);
} else if(wifiManager.isWifiEnabled()){
return true;
}
else{
return false;
}
}
/**
* 判断是否需要添加配置
*/
private int isConfiguration(String SSID) {
for (int i = 0; i < wifiConfiguration.size(); i++) {
Log.i("Debug", "配置中的wifi列表："+wifiConfiguration.get(i).SSID);
Log.e("Debug", String.valueOf(wifiConfiguration.get(i).networkId)+" "+wifiConfiguration.get(i).SSID);
if (wifiConfiguration.get(i).SSID.equals(SSID)) {
return wifiConfiguration.get(i).networkId;
}
}
return -1;
}
private boolean connectWifi(int wifiId) {
Log.e("Debug", String.valueOf(wifiId));
Log.e("Debug", "添加成功");
boolean flag;
Log.i("Debug","wifiConfiguration的数量:"+String.valueOf(wifiConfiguration.size()));
flag=wifiManager.enableNetwork(wifiId,false);
Log.e("Debug", String.valueOf(flag));
return flag;
}
/**
* 添加配置
*/
private int addWifiConfig(List<ScanResult> scanResult, String ssid,String pass) {
int wifiId = -1;
Log.i("Debug", "扫描出的热点数量："+scanResult.size()+" 需要添加的热点"+ssid);
for (int i = 0; i < scanResult.size(); i++) {
ScanResult wifi = scanResult.get(i);
Log.i("Debug", "扫描出的wifi列表："+wifi.SSID);
if (wifi.SSID.equals(ssid)) {
Log.i("Debug", "准备添加");
WifiConfiguration wifiConfig = new WifiConfiguration();
wifiConfig.SSID = "\"" + wifi.SSID + "\""; //需要用双引号括起来
//加入了密码
wifiConfig.hiddenSSID = false;
wifiConfig.status = WifiConfiguration. Status.ENABLED;
wifiConfig.preSharedKey = null;
wifiConfig.allowedKeyManagement.set(WifiConfiguration.KeyMgmt.NONE);
wifiId = wifiManager.addNetwork(wifiConfig);
Log.e("D1ebug", String.valueOf(wifiId));
if (wifiId != -1) {
Log.e("Debug", "添加成功"+wifiId);
return wifiId;
}
}
}
return wifiId;
}
private static class Permissions {
public static void checkPermission(Activity activity , String[] permission){
String[] noPermission = new String[permission.length];
int j = 0 ;
for (int i = 0; i < permission.length; i++) {
if (activity.checkSelfPermission(permission[i]) == PackageManager.PERMISSION_DENIED){
if (permission[i] != null){
requestPermisson(new String[]{permission[i]} , activity );
}
}
}
}
private static void requestPermisson(String[] s , Activity activity) {
ActivityCompat.requestPermissions(activity , s , 100);
}
}
private String intToIp(int i) {
return (i & 0xFF ) + "." +
((i >> 8 ) & 0xFF) + "." +
((i >> 16 ) & 0xFF) + "." +
( i >> 24 & 0xFF) ;
}
}
activity_main
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".MainActivity"
android:orientation="vertical">
<Button
android:layout_height="wrap_content"
android:layout_width="match_parent"
android:text="连接"
android:onClick="get"
tools:ignore="OnClick"/>
<Button
android:layout_height="wrap_content"
android:layout_width="match_parent"
android:text="注销"
android:onClick="no"
tools:ignore="OnClick"/>
</LinearLayout>
AndroidManifest.xml
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.http">
<uses-permission android:name="android.permission.CHANGE_NETWORK_STATE" />
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
<uses-permission android:name="android.permission.ACCESS_WIFI_STATE" />
<uses-permission android:name="android.permission.CHANGE_WIFI_STATE" />
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
<application
android:allowBackup="true"
android:icon="@mipmap/ic_launcher"
android:label="@string/app_name"
android:roundIcon="@mipmap/ic_launcher_round"
android:supportsRtl="true"
android:networkSecurityConfig="@xml/net_sc"
android:theme="@style/Theme.Http">
<meta-data
android:name="com.google.android.actions"
android:resource="@xml/net_sc" />
<activity
android:name=".MainActivity"
android:exported="true">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
</manifest>
net_sc.xml
<?xml version="1.0" encoding="utf-8"?>
<network-security-config>
<base-config cleartextTrafficPermitted="true" />
</network-security-config>
核心代码如上，其余的如导入包啥的不赘述了。
注意由于需要扫描wifi需要开启手机定位功能，并且给该程序位置权限。
演示视频：https://www.bilibili.com/video/BV1iT4y1Y7KS
标签：String,wifi,wifiId,Debug,自动,校园网,import,连接,Log 来源： https://www.cnblogs.com/aninock/p/16124768.html