Android WIFI DEMO(扫描附近WIFI强度)

最新推荐文章于 2021-05-26 05:40:05 发布

转载最新推荐文章于 2021-05-26 05:40:05 发布 · 1.2k 阅读

文章标签：

#android #wifi

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本文介绍了一个基于Android的应用程序，该程序能够显示当前可用的Wi-Fi列表，并允许用户选择连接。文章详细展示了如何通过代码获取Wi-Fi扫描结果并将其展示在一个列表视图中，同时还包含了配置Wi-Fi连接的基本步骤。

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        package 
         src.hero.com;
       
        import 
         java.util.ArrayList;
       
        import 
         java.util.List;
       
        import 
         android.app.ListActivity;
       
        import 
         android.net.wifi.ScanResult;
       
        import 
         android.net.wifi.WifiConfiguration;
       
        import 
         android.os.Bundle;
       
        import 
         android.util.Log;
       
        import 
         android.view.View;
       
        import 
         android.widget.AdapterView;
       
        import 
         android.widget.ArrayAdapter;
       
        import 
         android.widget.ListView;
       
        import 
         android.widget.AdapterView.OnItemClickListener;
       
        public 
         class 
         ListOk 
        extends 
         ListActivity 
        implements 
         OnItemClickListener
       
        {
       
        private 
         ListView lv;
       
        private 
         WifiTester wifiTester;
       
        // -----------------------连接WIFI
       
        private 
         ScanResult scanRet;
       
        private 
         WifiConfiguration wc;
       
        public 
         void 
         onCreate(Bundle savedInstanceState)
       
        {
       
        super
        .onCreate(savedInstanceState);
       
        this
        .setTitle(
        "当前可用的WIFI列表"
        );
       
        WifiTesterApp _TestActivityApp = (WifiTesterApp) 
        this
        .getApplication();
       
        wifiTester = (_TestActivityApp).getWifiTester();
       
        wc = 
        new 
         WifiConfiguration();
       
        ArrayAdapter<String> adapter = 
        new 
         ArrayAdapter<String>(
        this
        ,
       
        android.R.layout.simple_list_item_1,
       
        getString(wifiTester.getWifiList()));
       
        setListAdapter(adapter);
       
        lv = getListView();
       
        lv.setAdapter(adapter);
       
        lv.setOnItemClickListener(
        this
        );
       
        }
       
        public 
         String[] getString(List<ScanResult> wifiList)
       
        {
       
        ArrayList<String> listStr = 
        new 
         ArrayList<String>();
       
        for 
         (
        int 
         i = 
        0
        ; i < wifiList.size(); i++)
       
        {
       
        listStr.add(wifiList.get(i).toString());
       
        }
       
        return 
         listStr.toArray(
        new 
         String[
        0
        ]);
       
        }
       
        @Override
       
        public 
         void 
         onItemClick(AdapterView<?> parent, View view, 
        int 
         position,
       
        long 
         id)
       
        {
       
        scanRet = wifiTester.getWifiList().get(position);
       
        wc.SSID = 
        "\"" 
         + scanRet.SSID + 
        "\""
        ; 
        // 配置wifi的SSID，即该热点的名称，如：TP-link_xxx
       
        wc.preSharedKey = 
        "\"7675781777\""
        ; 
        // 该热点的密码
       
        wc.hiddenSSID = 
        true
        ;
       
        wc.status = WifiConfiguration.Status.ENABLED;
       
        wc.allowedGroupCiphers.set(WifiConfiguration.GroupCipher.TKIP);
       
        wc.allowedGroupCiphers.set(WifiConfiguration.GroupCipher.CCMP);
       
        wc.allowedKeyManagement.set(WifiConfiguration.KeyMgmt.WPA_PSK);
       
        wc.allowedPairwiseCiphers.set(WifiConfiguration.PairwiseCipher.TKIP);
       
        wc.allowedPairwiseCiphers.set(WifiConfiguration.PairwiseCipher.CCMP);
       
        wc.allowedProtocols.set(WifiConfiguration.Protocol.RSN);
       
        // int res = wifiTester.getMainWifi().addNetwork(wc);
       
        // Log.d("Wif iPreference", "1111111add Network returned " + res);
       
        // boolean b = wifiTester.getMainWifi().enableNetwork(res, true);
       
        // Log.d("WifiPreference", "2222222222enableNetwork returned " + b);
       
        }
       
        }