Android(安卓)热点开关状态的判断和获取热点ssid

最近在做Android盒子开发的时候，需要对热点进行开关和对状态的判断，经过查询相关资料找到解决方案
WifiManager.java源码，getWifiApState() 获取开关的状态

/**     * Gets the Wi-Fi enabled state.     * @return One of {@link #WIFI_AP_STATE_DISABLED},     *         {@link #WIFI_AP_STATE_DISABLING}, {@link #WIFI_AP_STATE_ENABLED},     *         {@link #WIFI_AP_STATE_ENABLING}, {@link #WIFI_AP_STATE_FAILED}     * @see #isWifiApEnabled()     *     * @hide Dont open yet     */    public int getWifiApState() {        try {            return mService.getWifiApEnabledState();        } catch (RemoteException e) {            return WIFI_AP_STATE_FAILED;        }    }

如果getWifiApState()被隐藏，就得调用反射来获取

 public static boolean isWifiApOpen(Context context) {        try {            WifiManager manager = (WifiManager) context.getSystemService(Context.WIFI_SERVICE);            //通过放射获取 getWifiApState()方法            Method method = manager.getClass().getDeclaredMethod("getWifiApState");            //调用getWifiApState() ，获取返回值            int state = (int) method.invoke(manager);            //通过放射获取 WIFI_AP的开启状态属性            Field field = manager.getClass().getDeclaredField("WIFI_AP_STATE_ENABLED");            //获取属性值            int value = (int) field.get(manager);            //判断是否开启            if (state == value) {                return true;            } else {                return false;            }        } catch (NoSuchMethodException e) {            e.printStackTrace();        } catch (IllegalAccessException e) {            e.printStackTrace();        } catch (InvocationTargetException e) {            e.printStackTrace();        } catch (NoSuchFieldException e) {            e.printStackTrace();        }        return false;    }

通过 getWifiApState() 方法返回值的注释，可以找到如下几种状态，拿到当前状态值之后，只需要对比各种状态的值，就知道热点的开启状态了

@return One of {@link #WIFI_STATE_DISABLED},{@link #WIFI_STATE_DISABLING}, {@link #WIFI_STATE_ENABLED},{@link #WIFI_STATE_ENABLING},{@link #WIFI_STATE_UNKNOWN}

2.通过反射获取到热点的SSID

try {    WifiManager manager = (WifiManager) this.getSystemService(Context.WIFI_SERVICE);    //拿到getWifiApConfiguration()方法    Method method = manager.getClass().getDeclaredMethod("getWifiApConfiguration");    //调用getWifiApConfiguration()方法，获取到 热点的WifiConfiguration    WifiConfiguration configuration = (WifiConfiguration) method.invoke(manager);    ssid = configuration.SSID;} catch (NoSuchMethodException e) {    e.printStackTrace();} catch (InvocationTargetException e) {    e.printStackTrace();} catch (IllegalAccessException e) {    e.printStackTrace();}

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