随着API级别26的发布,我的应用程序的核心功能破了,这就是改变了应用程序中用户的热点设置.
要获取和设置此配置,我使用WifiManager隐藏的API:getWifiApConfiguration和setWifiApConfiguration中的以下函数.
Method getWifiApConfiguration = wifiManager.getClass().getmethod("getWifiApConfiguration");getWifiApConfiguration.invoke(wifiManager);
这适用于AndroID O之前的设备,但在此版本中我收到以下错误:
App not allowed to read or update stored WiFi Ap config (uID = 10168)
我在清单中声明的权限是:
<uses-permission androID:name="androID.permission.WRITE_SETTINGS"/><uses-permission androID:name="androID.permission.CHANGE_NETWORK_STATE"/><uses-permission androID:name="androID.permission.ACCESS_NETWORK_STATE"/><uses-permission androID:name="androID.permission.CHANGE_WIFI_STATE"/><uses-permission androID:name="androID.permission.ACCESS_WIFI_STATE"/><uses-permission androID:name="androID.permission.INTERNET"/><uses-permission androID:name="androID.permission.READ_PHONE_STATE"/><uses-permission androID:name="com.Google.androID.gms.permission.ACTIVITY_RECOGNITION"/><uses-permission androID:name="androID.permission.ACCESS_COARSE_LOCATION"/><uses-permission androID:name="androID.permission.ACCESS_FINE_LOCATION"/><uses-permission androID:name="androID.permission.WRITE_EXTERNAL_STORAGE"/><uses-permission androID:name="androID.permission.READ_EXTERNAL_STORAGE"/><uses-permission androID:name="androID.permission.NETWORK_STACK"/><uses-permission androID:name="androID.permission.TETHER_PRIVILEGED" />
如何使用最新的API执行此 *** 作?
解决方法:
从AndroID Oreo(26)开始,新的权限检查被添加到getWifiApConfiguration()方法的服务实现中:
来自WifiServiceImpl.java的片段
/** * see {@link WifiManager#getWifiApConfiguration()} * @return soft access point configuration * @throws SecurityException if the caller does not have permission to retrIEve the softap * config */@OverrIDepublic WifiConfiguration getWifiApConfiguration() { enforceAccesspermission(); int uID = Binder.getCallingUID(); // only allow Settings UI to get the saved SoftApConfig if (!mWifiPermissionsUtil.checkConfigOverrIDePermission(uID)) { // random apps should not be allowed to read the user specifIEd config throw new SecurityException("App not allowed to read or update stored WiFi Ap config " + "(uID = " + uID + ")"); } mLog.trace("getWifiApConfiguration uID=%").c(uID).flush(); return mWifiStateMachine.syncGetWifiApConfiguration();}
深入研究代码,您将很快发现要成功调用此方法,您的应用程序必须持有androID.permission.OVERRIDE_WIFI_CONfig权限,该权限是系统级别受保护的权限:
框架AndroidManifest.xml的片段
<!-- @SystemAPI @hIDe Allows an application to modify any wifi configuration, even if created by another application. Once reconfigured the original creator cannot make any further modifications. <p>Not for use by third-party applications. --><permission androID:name="androID.permission.OVERRIDE_WIFI_CONfig" androID:protectionLevel="signature|privileged" />
这意味着您的应用程序需要由平台密钥签名或有权使用此API.
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