操作页面元素等待时间

package test;

import java.util.concurrent.TimeUnit;

import org.openqa.selenium.By;
import org.openqa.selenium.WebDriver;
import org.openqa.selenium.WebElement;
import org.openqa.selenium.support.ui.ExpectedCondition;
import org.openqa.selenium.support.ui.WebDriverWait;

import common.StartFireFox;

public class TestWait {
 
    public static void main(String[] args) {
        WebDriver driver = StartFireFox.start();
        driver.get("http://www.baidu.com");
     
        WebElement login = driver.findElement(By.id("su"));
        WebElement kw = driver.findElement(By.id("kw"));
        kw.sendKeys("selenium");
        login.click();
        //Explicit wait 
        (new WebDriverWait(driver, 10)).until(new ExpectedCondition<Boolean>(){
            public Boolean apply(WebDriver  d){
                return d.getTitle().toLowerCase().startsWith("selenium");
            }
        });
        System.out.println("Page title is: "+driver.getTitle());
        driver.navigate().back();
        //Implicit wait
        driver.manage().timeouts().implicitlyWait(10, TimeUnit.SECONDS);
        driver.findElement(By.id("kw")).click();
     
        
        driver.quit();
        System.out.println("close firefox browser");
    }
}