Android连接WiFi

WiFi打开、连接、关闭

/** * WiFi连接管理 * 申请权限 *  *  *  *  * 动态权限 * Manifest.permission.ACCESS_COARSE_LOCATION * Manifest.permission.ACCESS_FINE_LOCATION * */public class WifiUtils {    private static WifiUtils utils = null;    public WifiUtils(Context context){        wifiManager = (WifiManager) context.getSystemService(Context.WIFI_SERVICE);    }    public static WifiUtils getInstance(Context context){        if (utils == null){            synchronized (WifiUtils.class){                if (utils == null){                    utils = new WifiUtils(context);                }            }        }        return utils;    }    private WifiManager wifiManager;    /**     * wifi是否打开     * @return     */    public boolean isWifiEnable(){        boolean isEnable = false;        if (wifiManager != null){            if (wifiManager.isWifiEnabled()){                isEnable = true;            }        }        return isEnable;    }    /**     * 打开WiFi     */    public void openWifi(){        if (wifiManager != null && !isWifiEnable()){            wifiManager.setWifiEnabled(true);        }    }    /**     * 关闭WiFi     */    public void closeWifi(){        if (wifiManager != null && isWifiEnable()){            wifiManager.setWifiEnabled(false);        }    }    /**     * 获取WiFi列表     * @return     */    public List getWifiList(){        List resultList = new ArrayList<>();        if (wifiManager != null && isWifiEnable()){            resultList.addAll(wifiManager.getScanResults());        }        return resultList;    }    /**     * 有密码连接     * @param ssid     * @param pws     */    public void connectWifiPws(String ssid, String pws){        wifiManager.disableNetwork(wifiManager.getConnectionInfo().getNetworkId());        int netId = wifiManager.addNetwork(getWifiConfig(ssid, pws, true));        wifiManager.enableNetwork(netId, true);    }    /**     * 无密码连接     * @param ssid     */    public void connectWifiNoPws(String ssid){        wifiManager.disableNetwork(wifiManager.getConnectionInfo().getNetworkId());        int netId = wifiManager.addNetwork(getWifiConfig(ssid, "", false));        wifiManager.enableNetwork(netId, true);    }    /**     * wifi设置     * @param ssid     * @param pws     * @param isHasPws     */    private WifiConfiguration getWifiConfig(String ssid, String pws, boolean isHasPws){        WifiConfiguration config = new WifiConfiguration();        config.allowedAuthAlgorithms.clear();        config.allowedGroupCiphers.clear();        config.allowedKeyManagement.clear();        config.allowedPairwiseCiphers.clear();        config.allowedProtocols.clear();        config.SSID = "\"" + ssid + "\"";        WifiConfiguration tempConfig = isExist(ssid);        if(tempConfig != null) {            wifiManager.removeNetwork(tempConfig.networkId);        }        if (isHasPws){            config.preSharedKey = "\""+pws+"\"";            config.hiddenSSID = true;            config.allowedAuthAlgorithms.set(WifiConfiguration.AuthAlgorithm.OPEN);            config.allowedGroupCiphers.set(WifiConfiguration.GroupCipher.TKIP);            config.allowedKeyManagement.set(WifiConfiguration.KeyMgmt.WPA_PSK);            config.allowedPairwiseCiphers.set(WifiConfiguration.PairwiseCipher.TKIP);            config.allowedGroupCiphers.set(WifiConfiguration.GroupCipher.CCMP);            config.allowedPairwiseCiphers.set(WifiConfiguration.PairwiseCipher.CCMP);            config.status = WifiConfiguration.Status.ENABLED;        }else {            config.allowedKeyManagement.set(WifiConfiguration.KeyMgmt.NONE);        }        return config;    }    /**     * 得到配置好的网络连接     * @param ssid     * @return     */    private WifiConfiguration isExist(String ssid) {        List configs = wifiManager.getConfiguredNetworks();        for (WifiConfiguration config : configs) {            if (config.SSID.equals("\""+ssid+"\"")) {                return config;            }        }        return null;    }}

                                                             public class MyBroadcastReceiver extends BroadcastReceiver {    @Override    public void onReceive(Context context, Intent intent) {        if (intent != null                && WifiManager.NETWORK_STATE_CHANGED_ACTION.equals(intent.getAction())){            Log.e("======", "NETWORK_STATE_CHANGED_ACTION");            Parcelable parcelable = intent.getParcelableExtra(WifiManager.EXTRA_NETWORK_INFO);            if (parcelable != null){                NetworkInfo networkInfo = (NetworkInfo) parcelable;                NetworkInfo.State state = networkInfo.getState();                boolean isConnect = state == NetworkInfo.State.CONNECTED;                Log.e("======", "isConnect=" + isConnect);            }        }    }}

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