[Selenium]等待元素出现之后再消失，界面上的loading icon都属于这种类型，之前的方法总是卡死，换这种方法目前还好用的

等待元素出现之后再消失，界面上的loading icon都属于这种类型，之前的方法总是卡死，换这种方法目前还好用的

/**

     * Check if the element present with customized timeout

     * @param driver

     * @param locator

     * @param errorMessage

	 * @return

	 */

	public Boolean waitUntilElementPresent(WebDriver driver,final By locator, long timeOutInSeconds) {

		Boolean isPresent = false;

		for(int i=0;i<timeOutInSeconds;i++){

			isPresent=SeleniumUtil.isElementPresent(driver,locator);

			if(true==isPresent){

				break;

			}

			else{

				SeleniumUtil.sleep(1);

				System.out.println("Wait no more than "+timeOutInSeconds+"s for loading icon display, wait "+(i+1)+"s");

			}

		}

		return isPresent;

	}

 

/**

     * Wait until the element not present with customized timeout

     * @param driver

     * @param locator

     * @param errorMessage

	 * @return

	 */

	public Boolean waitUntilElementNotPresent(WebDriver driver,final By locator, long timeOutInSeconds) {

		Boolean isPresent = true;

		for(int i=0;i<timeOutInSeconds;i++){

			isPresent=SeleniumUtil.isElementPresent(driver,locator);

			if(false==isPresent){

				break;

			}

			else{

				SeleniumUtil.sleep(1);

				System.out.println("Wait no more than "+timeOutInSeconds+"s for loading icon disappear, wait "+(i+1)+"s");

			}

		}

		return isPresent;

	}

 

public void waitForLoadingDoneInNewWebPage(WebDriver driver){

		By locator=By.cssSelector("div.x-mask-msg");

		Boolean isPresent = this.waitUntilElementPresent(driver, locator, 10);

		if(true==isPresent){
                        System.out.println("Loading icon display in new web page");

			System.out.println("Wait for loading icon disappear in new web page");

			Boolean stillPresent = this.waitUntilElementNotPresent(driver, locator, 120);

			if(false==stillPresent){

				System.out.println("Loading icon disappear in new web page.");

			}

		}

		else{

			System.out.println("Loading icon does'nt display in new web page.");

		} 

	}