appium-ios-将App置于后台-启动App

不知为何，无法使用driver.runAppInBackground(Duration.ofSeconds(10))这条命令，每次都会报错
org.openqa.selenium.WebDriverException: An unknown server-side error occurred while processing the command. Original error: Error Domain=com.facebook.WebDriverAgent Code=1 "Timeout waiting until SpringBoard is visible" UserInfo={NSLocalizedDescription=Timeout waiting until SpringBoard is visible}
于是参考appium相关文档，找到了解决方法
http://appium.io/docs/en/writing-running-appium/ios/ios-xctest-mobile-apps-management/
实现将App置于后台，具体代码如下：

        JavascriptExecutor jse = (JavascriptExecutor) driver;
        Map params = new HashMap<>();
        params.put("bundleId", "com.kingsoft.www.office.wpsoffice");
        final boolean wasRunningBefore = (Boolean)jse.executeScript("mobile: terminateApp", params);

实现启动置于后台的App，具体代码如下：

  JavascriptExecutor jse = (JavascriptExecutor) driver;
  Map params = new HashMap<>();
  params.put("bundleId", "com.kingsoft.www.office.wpsoffice");
  jse.executeScript("mobile: activateApp", params);

可以启动任何一个知道bundleid的App