1、xml布局文件：
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent" android:layout_height="match_parent" android:paddingBottom="@dimen/activity_vertical_margin" android:paddingLeft="@dimen/activity_horizontal_margin" android:paddingRight="@dimen/activity_horizontal_margin" android:paddingTop="@dimen/activity_vertical_margin" tools:context="com.example.helloword.WifiTestActivity" > <LinearLayout android:layout_width="match_parent" android:layout_height="match_parent" android:layout_marginBottom="10dp" android:orientation="vertical" android:paddingLeft="16dp" android:paddingRight="16dp"> <LinearLayout android:layout_width="match_parent" android:layout_height="200dp" android:layout_marginBottom="10dp" android:layout_marginTop="10dp" android:orientation="vertical"> <TextView android:id="@+id/wifi_state" android:layout_width="match_parent" android:layout_height="match_parent" android:layout_weight="1" android:hint="wifi state" android:textColor="@android:color/black" /> <TextView android:id="@+id/wifi_name" android:layout_width="match_parent" android:layout_height="match_parent" android:layout_weight="1" android:hint="wifi name" android:textColor="@android:color/black" /> <TextView android:id="@+id/wifi_mac" android:layout_width="match_parent" android:layout_height="match_parent" android:layout_weight="1" android:hint="mac" android:textColor="@android:color/black" /> <TextView android:id="@+id/ip_address" android:layout_width="match_parent" android:layout_height="match_parent" android:layout_weight="1" android:hint="ip address" android:textColor="@android:color/black" /> <TextView android:id="@+id/ip_gateway" android:layout_width="match_parent" android:layout_height="match_parent" android:layout_weight="1" android:hint="gateway" android:textColor="@android:color/black" /> <EditText android:id="@+id/et_pwd" android:layout_width="360dp" android:layout_height="match_parent" android:layout_weight="1" android:hint="wifi密码" /> </LinearLayout> <ImageView android:layout_width="match_parent" android:layout_height="2dp" android:background="@android:color/black" /> <LinearLayout android:layout_width="match_parent" android:layout_height="50dp" android:orientation="horizontal"> <Button android:id="@+id/search_wifi" android:layout_width="match_parent" android:layout_height="match_parent" android:layout_weight="1" android:text="search wifi" /> <Button android:id="@+id/connect_wifi" android:layout_width="match_parent" android:layout_height="match_parent" android:layout_weight="1" android:text="connect" /> </LinearLayout> <ListView android:id="@+id/list_wifi" android:layout_width="match_parent" android:layout_height="match_parent" android:layout_marginBottom="10dp" android:layout_marginTop="10dp"></ListView> </LinearLayout> <FrameLayout android:id="@+id/progressbar" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_gravity="center" android:visibility="gone"> <ProgressBar android:layout_width="wrap_content" android:layout_height="wrap_content" /> </FrameLayout> </FrameLayout>
2、适配xml文件
<?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:orientation="vertical" android:layout_width="match_parent" android:layout_height="match_parent"> <TextView android:textColor="@android:color/black" android:text="test" android:id="@+id/wifi_item_name" android:layout_margin="5dp" android:layout_width="wrap_content" android:layout_height="wrap_content" /> </LinearLayout>
3、activity
package com.example.helloword; import java.util.ArrayList; import java.util.List; import java.util.concurrent.TimeUnit; import com.example.helloword.service.TimerService; import com.example.helloword.service.WifiTimerService; import com.example.helloword.utils.WifiAutoConnectManager; import android.annotation.SuppressLint; import android.app.Activity; import android.app.AlertDialog; import android.content.BroadcastReceiver; import android.content.Context; import android.content.DialogInterface; import android.content.Intent; import android.content.IntentFilter; import android.content.pm.PackageManager; import android.graphics.Color; import android.net.NetworkInfo; import android.net.wifi.ScanResult; import android.net.wifi.WifiConfiguration; import android.net.wifi.WifiManager; import android.os.AsyncTask; import android.os.Bundle; import android.support.annotation.NonNull; import android.text.TextUtils; import android.util.Log; import android.view.LayoutInflater; import android.view.View; import android.view.ViewGroup; import android.widget.AdapterView; import android.widget.BaseAdapter; import android.widget.Button; import android.widget.EditText; import android.widget.FrameLayout; import android.widget.ListView; import android.widget.TextView; import android.widget.Toast; public class WifiTestActivity extends Activity implements View.OnClickListener { EditText et_pwd; TextView mWifiState;//wifi状态 TextView mWifiName;//Wi-Fi名称 TextView mMac;//物理地址 TextView mIP;//ip地址 TextView mGateway;//网关地址 ListView mListWifi;//Wi-Fi列表 Button mBtnSearch;//搜索Wi-Fi Button mBtnConnect;//连接Wi-Fi WifiListAdapter mWifiListAdapter; public static final int WIFI_SCAN_PERMISSION_CODE = 2; WorkAsyncTask mWorkAsyncTask = null; ConnectAsyncTask mConnectAsyncTask = null; List<ScanResult> mScanResultList = new ArrayList<ScanResult>(); public static String ssid = ""; WifiAutoConnectManager.WifiCipherType type = WifiAutoConnectManager.WifiCipherType.WIFICIPHER_NOPASS; public static String password = "";//"hyc888888"; FrameLayout progressbar; boolean isLinked = false; String gateway = ""; String mac = ""; /** * 处理信号量改变或者扫描结果改变的广播 */ private BroadcastReceiver mWifiSearchBroadcastReceiver; private IntentFilter mWifiSearchIntentFilter; private BroadcastReceiver mWifiConnectBroadcastReceiver; private IntentFilter mWifiConnectIntentFilter; private WifiAutoConnectManager mWifiAutoConnectManager; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_wifi_test); Intent intent = new Intent(WifiTestActivity.this, WifiTimerService.class); //使用Intent传值 intent.putExtra("key","value"); startService(intent); intiView(); //初始化wifi工具 WifiManager wifiManager = (WifiManager) getApplicationContext().getSystemService(Context.WIFI_SERVICE); mWifiAutoConnectManager = WifiAutoConnectManager.newInstance(wifiManager); // if (ContextCompat.checkSelfPermission(this, Manifest.permission.ACCESS_COARSE_LOCATION) != PackageManager.PERMISSION_GRANTED) { // // 获取wifi连接需要定位权限,没有获取权限 // ActivityCompat.requestPermissions(this, new String[]{ // Manifest.permission.ACCESS_COARSE_LOCATION, // }, WIFI_SCAN_PERMISSION_CODE); // return; // } //设置监听wifi状态变化广播 initWifiSate(); } @Override public void onClick(View arg0) { switch (arg0.getId()) { case R.id.search_wifi: if (mWorkAsyncTask != null) { mWorkAsyncTask.cancel(true); mWorkAsyncTask = null; } mWorkAsyncTask = new WorkAsyncTask(); mWorkAsyncTask.execute(); break; case R.id.connect_wifi: if (ssid.equals(WifiAutoConnectManager.getSSID())) { return; } String pwdString = et_pwd.getText().toString().trim(); if(TextUtils.isEmpty(pwdString)){ Toast.makeText(WifiTestActivity.this, "请先填写wifi密码", Toast.LENGTH_SHORT).show(); return; } password = pwdString; if (mConnectAsyncTask != null) { mConnectAsyncTask.cancel(true); mConnectAsyncTask = null; } mConnectAsyncTask = new ConnectAsyncTask(ssid, password, type); mConnectAsyncTask.execute(); break; default: break; } } @Override protected void onResume() { super.onResume(); registerReceiver(mWifiSearchBroadcastReceiver, mWifiSearchIntentFilter); registerReceiver(mWifiConnectBroadcastReceiver, mWifiConnectIntentFilter); } @Override protected void onPause() { super.onPause(); unregisterReceiver(mWifiSearchBroadcastReceiver); unregisterReceiver(mWifiConnectBroadcastReceiver); } private void initWifiSate() { //wifi 搜索结果接收广播 mWifiSearchBroadcastReceiver = new BroadcastReceiver() { @Override public void onReceive(Context context, Intent intent) { String action = intent.getAction(); if (action.equals(WifiManager.SCAN_RESULTS_AVAILABLE_ACTION)) {// 扫描结果改表 mScanResultList = WifiAutoConnectManager.getScanResults(); if (mWifiListAdapter != null) { mWifiListAdapter.setmWifiList(mScanResultList); mWifiListAdapter.notifyDataSetChanged(); } } } }; mWifiSearchIntentFilter = new IntentFilter(); mWifiSearchIntentFilter.addAction(WifiManager.SCAN_RESULTS_AVAILABLE_ACTION); mWifiSearchIntentFilter.addAction(WifiManager.WIFI_STATE_CHANGED_ACTION); mWifiSearchIntentFilter.addAction(WifiManager.RSSI_CHANGED_ACTION); //wifi 状态变化接收广播 mWifiConnectBroadcastReceiver = new BroadcastReceiver() { @Override public void onReceive(Context context, Intent intent) { String action = intent.getAction(); if (action.equals(WifiManager.WIFI_STATE_CHANGED_ACTION)) { int wifState = intent.getIntExtra(WifiManager.EXTRA_WIFI_STATE, WifiManager.WIFI_STATE_UNKNOWN); if (wifState != WifiManager.WIFI_STATE_ENABLED) { Toast.makeText(WifiTestActivity.this, "没有wifi", Toast.LENGTH_SHORT).show(); } } else if (action.equals(WifiManager.SUPPLICANT_CONNECTION_CHANGE_ACTION)) { int linkWifiResult = intent.getIntExtra(WifiManager.EXTRA_SUPPLICANT_ERROR, 123); Log.e("wifidemo", ssid + "linkWifiResult:" + linkWifiResult); if (linkWifiResult == WifiManager.ERROR_AUTHENTICATING) { Log.e("wifidemo", ssid + "onReceive:密码错误"); } } else if (action.equals(WifiManager.NETWORK_STATE_CHANGED_ACTION)) { NetworkInfo.DetailedState state = ((NetworkInfo) intent.getParcelableExtra(WifiManager.EXTRA_NETWORK_INFO)).getDetailedState(); setWifiState(state); } } }; mWifiConnectIntentFilter = new IntentFilter(); mWifiConnectIntentFilter.addAction(WifiManager.ACTION_PICK_WIFI_NETWORK); mWifiConnectIntentFilter.addAction(WifiManager.NETWORK_STATE_CHANGED_ACTION); mWifiConnectIntentFilter.addAction(WifiManager.SUPPLICANT_CONNECTION_CHANGE_ACTION); mWifiConnectIntentFilter.addAction(WifiManager.WIFI_STATE_CHANGED_ACTION); } /** * 显示wifi状态 * * @param state */ @SuppressLint("NewApi") public void setWifiState(final NetworkInfo.DetailedState state) { if (state == NetworkInfo.DetailedState.AUTHENTICATING) { } else if (state == NetworkInfo.DetailedState.BLOCKED) { } else if (state == NetworkInfo.DetailedState.CONNECTED) { progressbar.setVisibility(View.GONE); isLinked = true; mWifiState.setText("wifi state:连接成功"); mWifiName.setText("wifi name:" + WifiAutoConnectManager.getSSID()); mIP.setText("ip address:" + WifiAutoConnectManager.getIpAddress()); mGateway.setText("gateway:" + WifiAutoConnectManager.getGateway()); mMac.setText("mac:" + WifiAutoConnectManager.getMacAddress()); gateway = WifiAutoConnectManager.getGateway(); mac = WifiAutoConnectManager.getMacAddress(); } else if (state == NetworkInfo.DetailedState.CONNECTING) { isLinked = false; mWifiState.setText("wifi state:连接中..."); mWifiName.setText("wifi name:" + WifiAutoConnectManager.getSSID()); mIP.setText("ip address"); mGateway.setText("gateway"); } else if (state == NetworkInfo.DetailedState.DISCONNECTED) { isLinked = false; mWifiState.setText("wifi state:断开连接"); mWifiName.setText("wifi name"); mIP.setText("ip address"); mGateway.setText("gateway"); } else if (state == NetworkInfo.DetailedState.DISCONNECTING) { isLinked = false; mWifiState.setText("wifi state:断开连接中..."); } else if (state == NetworkInfo.DetailedState.FAILED) { isLinked = false; mWifiState.setText("wifi state:连接失败"); } else if (state == NetworkInfo.DetailedState.IDLE) { } else if (state == NetworkInfo.DetailedState.OBTAINING_IPADDR) { } else if (state == NetworkInfo.DetailedState.SCANNING) { } else if (state == NetworkInfo.DetailedState.SUSPENDED) { } } private void intiView() { progressbar = (FrameLayout) findViewById(R.id.progressbar); mWifiState = (TextView) findViewById(R.id.wifi_state); mWifiName = (TextView) findViewById(R.id.wifi_name); mMac = (TextView) findViewById(R.id.wifi_mac); mIP = (TextView) findViewById(R.id.ip_address); mGateway = (TextView) findViewById(R.id.ip_gateway); mListWifi = (ListView) findViewById(R.id.list_wifi); mBtnSearch = (Button) findViewById(R.id.search_wifi); mBtnConnect = (Button) findViewById(R.id.connect_wifi); et_pwd = (EditText) findViewById(R.id.et_pwd); mBtnSearch.setOnClickListener(this); mBtnConnect.setOnClickListener(this); mListWifi.setOnItemClickListener(new AdapterView.OnItemClickListener() { @Override public void onItemClick(AdapterView<?> adapterView, View view, int i, long l) { mWifiListAdapter.setSelectItem(i); mWifiListAdapter.notifyDataSetChanged(); ScanResult scanResult = mScanResultList.get(i); ssid = scanResult.SSID; type = WifiAutoConnectManager.getCipherType(ssid); } }); } @Override public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) { super.onRequestPermissionsResult(requestCode, permissions, grantResults); switch (requestCode) { case WIFI_SCAN_PERMISSION_CODE: if (grantResults.length > 0 && grantResults[0] == PackageManager.PERMISSION_GRANTED) { } else { // 不允许 Toast.makeText(this, "开启权限失败", Toast.LENGTH_SHORT).show(); } break; default: break; } } /** * 获取wifi列表 */ private class WorkAsyncTask extends AsyncTask<Void, Void, List<ScanResult>> { private List<ScanResult> mScanResult = new ArrayList<>(); @Override protected void onPreExecute() { super.onPreExecute(); progressbar.setVisibility(View.VISIBLE); } @Override protected List<ScanResult> doInBackground(Void... params) { if (WifiAutoConnectManager.startStan()) { mScanResult = WifiAutoConnectManager.getScanResults(); } List<ScanResult> filterScanResultList = new ArrayList<>(); if (mScanResult != null) { for (ScanResult wifi : mScanResult) { filterScanResultList.add(wifi); Log.e("wifidemo", "doInBackground: wifi:" + wifi); } } try { TimeUnit.SECONDS.sleep(1); } catch (InterruptedException e) { e.printStackTrace(); } return filterScanResultList; } @Override protected void onPostExecute(final List<ScanResult> result) { super.onPostExecute(result); progressbar.setVisibility(View.GONE); mScanResultList = result; mWifiListAdapter = new WifiListAdapter(result, LayoutInflater.from(WifiTestActivity.this)); mListWifi.setAdapter(mWifiListAdapter); } } /** * wifi列表适配器 */ class WifiListAdapter extends BaseAdapter { private List<ScanResult> mWifiList; private LayoutInflater mLayoutInflater; public WifiListAdapter(List<ScanResult> wifiList, LayoutInflater layoutInflater) { this.mWifiList = wifiList; this.mLayoutInflater = layoutInflater; } @Override public int getCount() { return mWifiList.size(); } @Override public Object getItem(int position) { return mWifiList.get(position); } @Override public long getItemId(int position) { return position; } @Override public View getView(int position, View convertView, ViewGroup parent) { if (convertView == null) { convertView = mLayoutInflater.inflate(R.layout.fragment_wifi_list_item, null); } ScanResult sr = mWifiList.get(position); convertView.setTag(sr); TextView textView = (TextView) convertView.findViewById(R.id.wifi_item_name); int numLevel = WifiAutoConnectManager.getSignalNumsLevel(sr.level, 5); String password = sr.capabilities; String text = "加密方式:"; if (password.contains("WPA") || password.contains("wpa")) { password = "WPA"; } else if (password.contains("WEP") || password.contains("wep")) { password = "WEP"; } else { text = ""; password = ""; } textView.setText(sr.SSID + " " + text + password + " 信号强度：" + numLevel); convertView.setBackgroundColor(Color.WHITE); if (position == selectItem) { convertView.setBackgroundColor(Color.GRAY); } return convertView; } public void setSelectItem(int selectItem) { this.selectItem = selectItem; } private int selectItem = -1; public void setmWifiList(List<ScanResult> mWifiList) { this.mWifiList = mWifiList; } } /** * 连接指定的wifi */ class ConnectAsyncTask extends AsyncTask<Void, Void, Boolean> { private String ssid; private String password; private WifiAutoConnectManager.WifiCipherType type; WifiConfiguration tempConfig; public ConnectAsyncTask(String ssid, String password, WifiAutoConnectManager.WifiCipherType type) { this.ssid = ssid; this.password = password; this.type = type; } @Override protected void onPreExecute() { super.onPreExecute(); progressbar.setVisibility(View.VISIBLE); } @Override protected Boolean doInBackground(Void... voids) { // 打开wifi mWifiAutoConnectManager.openWifi(); // 开启wifi功能需要一段时间(我在手机上测试一般需要1-3秒左右)，所以要等到wifi // 状态变成WIFI_STATE_ENABLED的时候才能执行下面的语句 while (mWifiAutoConnectManager.wifiManager.getWifiState() == WifiManager.WIFI_STATE_ENABLING) { try { // 为了避免程序一直while循环，让它睡个100毫秒检测…… Thread.sleep(100); } catch (InterruptedException ie) { Log.e("wifidemo", ie.toString()); } } tempConfig = mWifiAutoConnectManager.isExsits(ssid); //禁掉所有wifi for (WifiConfiguration c : mWifiAutoConnectManager.wifiManager.getConfiguredNetworks()) { mWifiAutoConnectManager.wifiManager.disableNetwork(c.networkId); } if (tempConfig != null) { Log.d("wifidemo", ssid + "配置过！"); boolean result = mWifiAutoConnectManager.wifiManager.enableNetwork(tempConfig.networkId, true); if (!isLinked && type != WifiAutoConnectManager.WifiCipherType.WIFICIPHER_NOPASS) { try { Thread.sleep(5000);//超过5s提示失败 if (!isLinked) { Log.d("wifidemo", ssid + "连接失败！"); mWifiAutoConnectManager.wifiManager.disableNetwork(tempConfig.networkId); runOnUiThread(new Runnable() { @Override public void run() { progressbar.setVisibility(View.GONE); Toast.makeText(getApplicationContext(), "连接失败!请在系统里删除wifi连接，重新连接。", Toast.LENGTH_SHORT).show(); new AlertDialog.Builder(WifiTestActivity.this) .setTitle("连接失败！") .setMessage("请在系统里删除wifi连接，重新连接。") .setNegativeButton("取消", new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { dialog.dismiss(); } }) .setPositiveButton("好的", new DialogInterface.OnClickListener() { public void onClick(DialogInterface dialog, int which) { Intent intent = new Intent(); intent.setAction("android.net.wifi.PICK_WIFI_NETWORK"); startActivity(intent); } }).show(); } }); } } catch (Exception e) { e.printStackTrace(); } } Log.d("wifidemo", "result=" + result); return result; } else { Log.d("wifidemo", ssid + "没有配置过！"); if (type != WifiAutoConnectManager.WifiCipherType.WIFICIPHER_NOPASS) { runOnUiThread(new Runnable() { @Override public void run() { final EditText inputServer = new EditText(WifiTestActivity.this); new AlertDialog.Builder(WifiTestActivity.this) .setTitle("请输入密码") .setView(inputServer) .setNegativeButton("取消", new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { dialog.dismiss(); } }) .setPositiveButton("连接", new DialogInterface.OnClickListener() { public void onClick(DialogInterface dialog, int which) { password = inputServer.getText().toString(); new Thread(new Runnable() { @Override public void run() { WifiConfiguration wifiConfig = mWifiAutoConnectManager.createWifiInfo(ssid, password, type); if (wifiConfig == null) { Log.d("wifidemo", "wifiConfig is null!"); return; } Log.d("wifidemo", wifiConfig.SSID); int netID = mWifiAutoConnectManager.wifiManager.addNetwork(wifiConfig); boolean enabled = mWifiAutoConnectManager.wifiManager.enableNetwork(netID, true); Log.d("wifidemo", "enableNetwork status enable=" + enabled); // Log.d("wifidemo", "enableNetwork connected=" + mWifiAutoConnectManager.wifiManager.reconnect()); // mWifiAutoConnectManager.wifiManager.reconnect(); } }).start(); } }).show(); } }); } else { WifiConfiguration wifiConfig = mWifiAutoConnectManager.createWifiInfo(ssid, password, type); if (wifiConfig == null) { Log.d("wifidemo", "wifiConfig is null!"); return false; } Log.d("wifidemo", wifiConfig.SSID); int netID = mWifiAutoConnectManager.wifiManager.addNetwork(wifiConfig); boolean enabled = mWifiAutoConnectManager.wifiManager.enableNetwork(netID, true); Log.d("wifidemo", "enableNetwork status enable=" + enabled); // Log.d("wifidemo", "enableNetwork connected=" + mWifiAutoConnectManager.wifiManager.reconnect()); // return mWifiAutoConnectManager.wifiManager.reconnect(); return enabled; } return false; } } @Override protected void onPostExecute(Boolean aBoolean) { super.onPostExecute(aBoolean); mConnectAsyncTask = null; } } }
4、WifiAutoConnectManager
package com.example.helloword.utils; import java.net.InetAddress; import java.util.ArrayList; import java.util.List; import java.util.concurrent.TimeUnit; import android.net.wifi.ScanResult; import android.net.wifi.WifiConfiguration; import android.net.wifi.WifiInfo; import android.net.wifi.WifiManager; import android.text.TextUtils; import android.util.Log; public class WifiAutoConnectManager { private static final String TAG = WifiAutoConnectManager.class .getSimpleName(); public static WifiManager wifiManager = null; private static WifiAutoConnectManager mWifiAutoConnectManager; // 定义几种加密方式，一种是WEP，一种是WPA，还有没有密码的情况 public enum WifiCipherType { WIFICIPHER_WEP, WIFICIPHER_WPA, WIFICIPHER_NOPASS, WIFICIPHER_INVALID } // 构造函数 private WifiAutoConnectManager(WifiManager wifiManager) { this.wifiManager = wifiManager; } public static WifiAutoConnectManager newInstance(WifiManager wifiManager) { if (mWifiAutoConnectManager == null) { mWifiAutoConnectManager = new WifiAutoConnectManager(wifiManager); } return mWifiAutoConnectManager; } // 查看以前是否也配置过这个网络 public WifiConfiguration isExsits(String SSID) { List<WifiConfiguration> existingConfigs = wifiManager .getConfiguredNetworks(); for (WifiConfiguration existingConfig : existingConfigs) { if (existingConfig.SSID.equals("\"" + SSID + "\"")) { return existingConfig; } } return null; } /** * 创建wifi配置文件 * * @param SSID * @param Password * @param Type * @return */ public WifiConfiguration createWifiInfo(String SSID, String Password, WifiCipherType Type) { WifiConfiguration config = new WifiConfiguration(); config.allowedAuthAlgorithms.clear(); config.allowedGroupCiphers.clear(); config.allowedKeyManagement.clear(); config.allowedPairwiseCiphers.clear(); config.allowedProtocols.clear(); config.SSID = "\"" + SSID + "\""; // config.SSID = SSID; // nopass if (Type == WifiCipherType.WIFICIPHER_NOPASS) { // config.wepKeys[0] = ""; config.allowedKeyManagement.set(WifiConfiguration.KeyMgmt.NONE); // config.wepTxKeyIndex = 0; } else if (Type == WifiCipherType.WIFICIPHER_WEP) {// wep if (!TextUtils.isEmpty(Password)) { if (isHexWepKey(Password)) { config.wepKeys[0] = Password; } else { config.wepKeys[0] = "\"" + Password + "\""; } } config.allowedAuthAlgorithms.set(WifiConfiguration.AuthAlgorithm.OPEN); config.allowedAuthAlgorithms.set(WifiConfiguration.AuthAlgorithm.SHARED); config.allowedKeyManagement.set(WifiConfiguration.KeyMgmt.NONE); config.wepTxKeyIndex = 0; } else if (Type == WifiCipherType.WIFICIPHER_WPA) {// wpa config.preSharedKey = "\"" + Password + "\""; config.allowedAuthAlgorithms.set(WifiConfiguration.AuthAlgorithm.OPEN); config.allowedGroupCiphers.set(WifiConfiguration.GroupCipher.TKIP); config.allowedGroupCiphers.set(WifiConfiguration.GroupCipher.CCMP); config.allowedKeyManagement.set(WifiConfiguration.KeyMgmt.WPA_PSK); config.allowedPairwiseCiphers.set(WifiConfiguration.PairwiseCipher.TKIP); config.allowedPairwiseCiphers.set(WifiConfiguration.PairwiseCipher.CCMP); config.allowedProtocols.set(WifiConfiguration.Protocol.RSN); config.allowedProtocols.set(WifiConfiguration.Protocol.WPA); config.status = WifiConfiguration.Status.ENABLED; } return config; } // 打开wifi功能 public boolean openWifi() { boolean bRet = true; if (!wifiManager.isWifiEnabled()) { bRet = wifiManager.setWifiEnabled(true); } return bRet; } // 关闭WIFI private void closeWifi() { if (wifiManager.isWifiEnabled()) { wifiManager.setWifiEnabled(false); } } private static boolean isHexWepKey(String wepKey) { final int len = wepKey.length(); // WEP-40, WEP-104, and some vendors using 256-bit WEP (WEP-232?) if (len != 10 && len != 26 && len != 58) { return false; } return isHex(wepKey); } private static boolean isHex(String key) { for (int i = key.length() - 1; i >= 0; i--) { final char c = key.charAt(i); if (!(c >= '0' && c <= '9' || c >= 'A' && c <= 'F' || c >= 'a' && c <= 'f')) { return false; } } return true; } /** * 根据给定的ssid信号量和总级别，判断当前信号量，在什么级别 * * @param rssi * @param numLevels * @return */ public static int getSignalNumsLevel(int rssi, int numLevels) { if (wifiManager == null) { return -1; } return WifiManager.calculateSignalLevel(rssi, numLevels); } /** * 获取ssid的加密方式 */ public static WifiCipherType getCipherType(String ssid) { if (wifiManager == null) { return null; } List<ScanResult> list = wifiManager.getScanResults(); for (ScanResult scResult : list) { if (!TextUtils.isEmpty(scResult.SSID) && scResult.SSID.equals(ssid)) { String capabilities = scResult.capabilities; if (!TextUtils.isEmpty(capabilities)) { if (capabilities.contains("WPA") || capabilities.contains("wpa")) { Log.e("wifidemo", "wpa"); return WifiCipherType.WIFICIPHER_WPA; } else if (capabilities.contains("WEP") || capabilities.contains("wep")) { Log.e("wifidemo", "wep"); return WifiCipherType.WIFICIPHER_WEP; } else { Log.e("wifidemo", "no"); return WifiCipherType.WIFICIPHER_NOPASS; } } } } return WifiCipherType.WIFICIPHER_INVALID; } /** * 获取 bssid 接入点的地址 * @return */ public static String getBSSID() { if (wifiManager == null) { return null; } WifiInfo info = wifiManager.getConnectionInfo(); Log.e("wifidemo", "getBSSID" + info.getBSSID()); if (info == null) { return null; } return info.getBSSID(); } /** * 获取网关地址 * * @return */ public static String getGateway() { if (wifiManager == null) { return ""; } InetAddress inetAddress = NetWorkUtils.intToInetAddress(wifiManager.getDhcpInfo().gateway); if (inetAddress == null) { return ""; } return inetAddress.getHostAddress(); } /** * 获取ip地址 * @return */ public static String getIpAddress(){ if (wifiManager == null) { return ""; } InetAddress inetAddress = NetWorkUtils.intToInetAddress(wifiManager.getConnectionInfo().getIpAddress()); if (inetAddress == null) { return ""; } return inetAddress.getHostAddress(); } /** * 获取mac地址 * @return */ public static String getMacAddress(){ if (wifiManager == null) { return ""; } return wifiManager.getConnectionInfo().getMacAddress(); } /** * 获取wifi名称 * * @return */ public static String getSSID() { if (wifiManager == null) { return null; } WifiInfo info = wifiManager.getConnectionInfo(); String ssid = info.getSSID(); if (ssid != null) { ssid = ssid.substring(1, ssid.length() - 1); } return ssid; } /** * 扫描WIFI AP */ public static boolean startStan() { if (wifiManager == null) { return false; } if (!wifiManager.isWifiEnabled()) { wifiManager.setWifiEnabled(true); try { TimeUnit.SECONDS.sleep(5); } catch (InterruptedException e) { e.printStackTrace(); } } return wifiManager.startScan(); } /** * 获取所有WIFI AP */ public static List<ScanResult> getScanResults() { List<ScanResult> srList = wifiManager.getScanResults(); if (srList == null) { srList = new ArrayList<ScanResult>(); } return srList; } }
5、在清单文件中设置wifi权限
<uses-permission android:name="android.permission.INTERNET" /> <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_COARSE_LOCATION" /> <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />