[移动开发]Android中连接wifi的方法

其实就是代码实现wifi连接，废话不多说，直接上代码

public class MainActivity extends WaterPermissionActivity {

    private Runnable r;
    private Handler handler;
    @BindView(R.id.listview)
    ListView listview;
    @BindView(R.id.et_password)
    EditText et_password;
    private List<ScanResult> listWifiAll;

    @Override
    protected MvcBaseModel getModelImp() {
        return null;
    }

    @Override
    protected int getContentLayoutId() {
        return R.layout.activity_main;
    }

    @Override
    protected void initWidget() {
        requestPermission(ACCESS_FINE_LOCATION);
    }

    @Override
    protected void doAccessFineLocation() {
        requestPermission(ACCESS_COARSE_LOCATION);
    }

    @Override
    protected void doAccessCoarseLocation() {
        WifiManager wifiManager = ((WifiManager) getApplicationContext().getSystemService(WIFI_SERVICE));
        wifiManager.startScan();
        listWifiAll = new ArrayList<>();
        MainAdapter mainAdapter = new MainAdapter(this, listWifiAll);
        listview.setAdapter(mainAdapter);
        listview.setOnItemClickListener(new AdapterView.OnItemClickListener() {
            @Override
            public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
                //选定具体的wifi后，拿到对应的wifi信息
                if (ActivityCompat.checkSelfPermission(MainActivity.this, Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED) {
                    return;
                }
                List<WifiConfiguration> alreadyWifiList = wifiManager.getConfiguredNetworks();
                boolean flag = true;
                for (int i = 0; i < alreadyWifiList.size(); i++) {
                    if (listWifiAll.get(position).SSID.equals(alreadyWifiList.get(i).SSID.replaceAll("\"",""))){
                        //找到了相同配置
                        flag = false;
                        @SuppressLint("WifiManagerLeak")
                        WifiManager manager = (WifiManager) getSystemService(Context.WIFI_SERVICE);
                        WifiConfiguration config = new WifiConfiguration();
                        config.SSID = "\""+listWifiAll.get(position).SSID+"\"";
                        config.preSharedKey = "\""+alreadyWifiList.get(i).preSharedKey+"\"";//加密wifi
                        config.hiddenSSID = true;
                        config.status = WifiConfiguration.Status.ENABLED;
                        config.allowedGroupCiphers.set(WifiConfiguration.GroupCipher.TKIP);
                        config.allowedGroupCiphers.set(WifiConfiguration.GroupCipher.CCMP);
                        config.allowedPairwiseCiphers.set(WifiConfiguration.PairwiseCipher.TKIP);
                        config.allowedPairwiseCiphers.set(WifiConfiguration.PairwiseCipher.CCMP);
                        config.allowedKeyManagement.set(WifiConfiguration.KeyMgmt.NONE);//WPA_PSK  NONE（非加密）
                        config.allowedProtocols.set(WifiConfiguration.Protocol.WPA);
                        int netId = manager.addNetwork(config);
                        boolean b = manager.enableNetwork(netId, true);
                        break;
                    }
                }
                if (flag){
                    //没有找到相同配置
                    String password = et_password.getText().toString().trim();
                    if (NullUtil.isStringEmpty(password)){
                        ToastUtil.toastWord(MainActivity.this,"请输入密码");
                        return;
                    }
                    WifiManager manager = (WifiManager) MainActivity.this.getApplicationContext().getSystemService(Context.WIFI_SERVICE);
                    WifiConfiguration config = new WifiConfiguration();
                    config.SSID = "\""+listWifiAll.get(position).SSID+"\"";
		            config.preSharedKey = "\""+password+"\"";;//加密wifi
                    config.hiddenSSID = true;
                    config.status = WifiConfiguration.Status.ENABLED;
                    config.allowedGroupCiphers.set(WifiConfiguration.GroupCipher.TKIP);
                    config.allowedGroupCiphers.set(WifiConfiguration.GroupCipher.CCMP);
                    config.allowedPairwiseCiphers.set(WifiConfiguration.PairwiseCipher.TKIP);
                    config.allowedPairwiseCiphers.set(WifiConfiguration.PairwiseCipher.CCMP);
                    config.allowedKeyManagement.set(WifiConfiguration.KeyMgmt.NONE);//WPA_PSK  NONE（非加密）
                    config.allowedProtocols.set(WifiConfiguration.Protocol.WPA);
                    int netId = manager.addNetwork(config);
                    boolean b = manager.enableNetwork(netId, true);
                }
            }
        });
        handler = new Handler();
        r = new Runnable() {
            @Override
            public void run() {
                List<ScanResult> listWifi = wifiManager.getScanResults();
                for (int i = 0; i < listWifi.size(); i++) {
                    boolean flag = true;
                    for (int j = 0; j < listWifiAll.size(); j++) {
                        if (listWifi.get(i).SSID.equals(listWifiAll.get(j).SSID)){
                            flag = false;
                            break;
                        }
                    }
                    if (flag) {
                        listWifiAll.add(listWifi.get(i));
                    }
                }
                mainAdapter.notifyDataSetChanged();
                handler.postDelayed(r,2000);
            }
        };
        handler.postDelayed(r,100);
    }
}

权限如下

    <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION"/>
    <uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION"/>
    <uses-permission android:name="android.permission.INTERNET"/>

    <uses-permission android:name="android.permission.CHANGE_WIFI_STATE"/>
    <uses-permission android:name="android.permission.ACCESS_WIFI_STATE"/>

这里要说明一下，虽然原理是实现了，但实际操作起来好像并不是那么好用。后续如果有改进我会第一时间写上来。