【Selenium】等待元素出现之后再消失，譬如Loading icon

【Selenium】等待元素出现之后再消失，譬如Loading icon

界面上有些元素是要先等它出现，再等它消失，譬如loading icon

等多个loading icon出现后消失

    public void waitForLoadingIconDisappearInDialog(WebDriver driver) {System.out.println("Wait for loading icons display in dialog or widgets.");Function<WebDriver, Boolean> waitFn = new Function<WebDriver, Boolean>() {@Overridepublic Boolean apply(WebDriver driver) {try {for (WebElement el : driver.findElements(By.cssSelector("div.win-bd-mask[style*='display: block'] div.win-bd-mask-waiting"))) {if (el.isDisplayed()) {System.out.println("Loading icon display in dialog or widgets.");return false;}}}catch (Exception ex) {return true;}return true;}};WebDriverWait wait = new WebDriverWait(driver, 120, 1000);wait.withMessage("Loading icons should disppear in dialog or widgets in 120s");wait.until(waitFn);System.out.println("Loading icons disspear in dialog or widgets.");}

等一个loading icon 出现后消失

public void waitForLoadingIconDisappearInNewWebPage(WebDriver driver) {System.out.println("Wait for loading icon display in new web page.");final By cssSelector=By.cssSelector("div.x-mask-msg");Function<WebDriver, Boolean> waitFn = new Function<WebDriver, Boolean>() {public Boolean apply(WebDriver driver) {try{if(driver.findElement(cssSelector).isDisplayed()){System.out.println("Loading icon display in new web page.");return false;}}catch(Exception e){return true;}return true;}};WebDriverWait wait = new WebDriverWait(driver, 120, 2000);wait.withMessage("Loading icon should disappear in new web page in 120s");wait.until(waitFn);System.out.println("Loading icon disappear in new web page.");}

等显现的元素变成隐藏，相对要简单一些，先等它可见，再等它不可见

public void waitForLoadingIconDisappearInHomePage(WebDriver driver) {this.waitForElementVisible(driver, By.cssSelector("div#window-waiting-box"), 20 ,"Waiting box should display in 20s");this.waitForElementNotVisible(driver, By.cssSelector("div#window-waiting-box"), 120 ,"Waiting box should disppear in 120s");}