如果在设备对象中没有反映出安装的应用程序，请在设备策略中运行一个同步命令。以下是一个示例代码：

String deviceId = "your_device_id_here";
String commandType = "MANAGED_CONFIGURATIONS_FOR_USER";
String packageName = "com.example.myapp";
String command = "{ \"packageName\": \"" + packageName + "\" }";
String result = androidManagementApi
                .enterprises()
                .devices()
                .issueCommand(deviceId, new Command()
                        .setType(commandType)
                        .setManagedConfigurationsForUser(new ManagedConfigurationsForUserCommand()
                                .setPackageName(packageName)
                                .setCommand(command)
                        )
                ).execute();