Appium 等待的三种方法

1.sleep  eg: Thread.sleep(60000)；强制等待60s
2.implicitlyWait
  driver.manage().timeouts().implicitlyWait(30,TimeUnit.SECONDS);
  //隐式等待，全局等待30s不管是否已经加载
3.WebDriverWait 显示等待，这个需要增加一定等待时间，显示等待时间可以通过WebDriverWait 和util来决定
 WebDriverWait wait=new WebDriverWait(driver,60);
  WebElement e=wait.until(new ExpectedCondition(){
  @Override
  public WebElement apply(WebDriver d){
  return d.findElement(By.id("q"));
  }
  })
  只用WebDriverWait是selenium所特有，在java-client中也找不到相应，如果想使用这种方法怎么办？


改造轮子，首先添加AndroidDriverWait.java, 其实是将WebDriverWait的类型改成AndroidDriverWait


具体代码如下：
第一步：创建AndroidDriverWait.java, 其实是将WebDriverWait的类型改成AndroidDriverWait
import java.util.concurrent.TimeUnit;


import io.appium.java_client.android.AndroidDriver;


import org.openqa.selenium.NotFoundException;
import org.openqa.selenium.WebDriver;
import org.openqa.selenium.WebDriverException;
import org.openqa.selenium.TimeoutException;
import org.openqa.selenium.remote.RemoteWebDriver;
import org.openqa.selenium.support.ui.SystemClock;
import org.openqa.selenium.support.ui.Clock;
import org.openqa.selenium.support.ui.FluentWait;
import org.openqa.selenium.support.ui.Sleeper;






public class AndroidDriverWait extends FluentWait{
public final static long DEFAULT_SLEEP_TIMEOUT=500;
private final WebDriver driver;
public AndroidDriverWait(AndroidDriver driver,long timeOutInSeconds){
this(driver, new SystemClock(), Sleeper.SYSTEM_SLEEPER, timeOutInSeconds, DEFAULT_SLEEP_TIMEOUT);
}
public AndroidDriverWait(AndroidDriver driver,long timeOutInSeconds,long sleepInMillis){
this(driver, new SystemClock(), Sleeper.SYSTEM_SLEEPER, timeOutInSeconds, sleepInMillis);
}

public AndroidDriverWait(AndroidDriver driver,Clock clock,Sleeper sleeper,long timeOutInSeconds,long sleepTimeOut){
super(driver,clock,sleeper);
withTimeout(timeOutInSeconds,TimeUnit.SECONDS);
pollingEvery(sleepTimeOut,TimeUnit.MILLISECONDS);
ignoring(NotFoundException.class);
this.driver=driver;
}
  @Override
  protected RuntimeException timeoutException(String message,Throwable lastException){
 TimeoutException ex=new TimeoutException(message,lastException);
 ex.addInfo(WebDriverException.DRIVER_INFO,driver.getClass().getName());
 if(driver instanceof RemoteWebDriver){
 RemoteWebDriver remote=(RemoteWebDriver) driver;
 if(remote.getSessionId()!=null){
 ex.addInfo(WebDriverException.SESSION_ID,remote.getSessionId().toString());
 }
 if(remote.getCapabilities()!=null){
 ex.addInfo("Capabilities",remote.getCapabilities().toString());
 }
 }
 throw ex;
  }
   
}


第二步：接着需要修改接口：ExpectedCondition，将其WebDriver的类型替换为AndroidDriver


   import com.google.common.base.Function;
   import io.appium.java_client.android.AndroidDriver;
   public interface ExpectedCondition extends Function
   {}
第三步：经过第一二步后，就可以在appium 中直接使用；
       WebElement showClose=new AndroidDriveWait(driver,60).until(new ExpectedCondition()｛
       public WebElement apply(AndroidDriver d){
       return d.findElemnt(By.id("com.zhihu.android:id/showcase_close"));


       }
       ｝);