Android打开热点代码

要在Android应用程序中打开移动热点，可以使用以下代码：

// 开启热点
WifiManager wifiManager = (WifiManager) getSystemService(Context.WIFI_SERVICE);
WifiConfiguration wifiConfiguration = new WifiConfiguration();

wifiConfiguration.SSID = "MyHotspot"; // 热点名称
wifiConfiguration.preSharedKey = "MyPassword"; // 热点密码
wifiConfiguration.allowedAuthAlgorithms.set(WifiConfiguration.AuthAlgorithm.OPEN);
wifiConfiguration.allowedProtocols.set(WifiConfiguration.Protocol.RSN);
wifiConfiguration.allowedProtocols.set(WifiConfiguration.Protocol.WPA);
wifiConfiguration.allowedKeyManagement.set(WifiConfiguration.KeyMgmt.WPA_PSK);

Method method = wifiManager.getClass().getMethod("setWifiApEnabled", WifiConfiguration.class, boolean.class);
method.invoke(wifiManager, wifiConfiguration, true);

请注意，要在AndroidManifest.xml文件中添加以下权限：

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

这样才能开启热点并修改WiFi设置。另外，由于Android系统的限制，开启热点需要获取ROOT权限。