AS+Appium+Java+Win自动化测试之Appium的Java测试脚本封装（Android测试）

荔园晨风bbs站,享利宝,tokyo hot n0616

一、为什么需要封装?

封装的本意就是为了方便、简洁。

二、android的显式等待封装

1. androiddriverwait.java

package com.example.base;

/**
 * created by litp on 2016/9/8.
 */

import org.openqa.selenium.notfoundexception;
import org.openqa.selenium.timeoutexception;
import org.openqa.selenium.webdriver;
import org.openqa.selenium.webdriverexception;
import org.openqa.selenium.remote.remotewebdriver;
import org.openqa.selenium.support.ui.clock;
import org.openqa.selenium.support.ui.fluentwait;
import org.openqa.selenium.support.ui.sleeper;
import org.openqa.selenium.support.ui.systemclock;

import java.util.concurrent.timeunit;

import io.appium.java_client.android.androiddriver;

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;
 }
}

2.expectedcondition.java

接口

package com.example.base;

import com.google.common.base.function;

import io.appium.java_client.android.androiddriver;

/**
 * created by litp on 2016/9/8.
 */
public interface expectedcondition extends function {}

3. 使用

 /**
  * 显示等待，等待id对应的控件出现time秒，一出现马上返回，time秒不出现也返回
  */
 public androidelement waitauto(by by, int time) {
  try {
return new androiddriverwait(driver, time)
  .until(new expectedcondition() {
@override
public androidelement apply(androiddriver androiddriver) {
 return (androidelement) androiddriver.findelements(by);
}
  });
  } catch (timeoutexception e) {
assert.fail("查找元素超时!! " + time + " 秒之后还没找到元素 [" + by.tostring() + "]", e);
return null;
  }
 }

三、assert断言的封装

封装了 出现错误输出了异常信息但不终止程序的运行，会继续往下执行。

1.assertion.java

package com.example.base;

import org.testng.assert;

import java.util.arraylist;
import java.util.list;

/**
 * created by litp on 2016/9/21.
 */

public class assertion {


 public static boolean flag = true; //是否有错误

 public static list errors = new arraylist<>(); //错误集合

 /**
  * 验证值是否相等
  * @param actual 第一个值
  * @param expected 要对比的值
  */
 public static void verifyequals(object actual, object expected){
  try{
assert.assertequals(actual, expected);
  }catch(error e){
errors.add(e);
flag = false;
  }
 }


 /**
  * 验证值是否相等
  * @param actual 第一个值
  * @param expected 要对比的值
  * @param message 出错时候的提示消息
  */
 public static void verifyequals(object actual, object expected, string message){
  try{
assert.assertequals(actual, expected, message);
  }catch(error e){
errors.add(e);
flag = false;
  }
 }
}

2.assertionlistener.java

package com.example.base;

import org.testng.itestresult;
import org.testng.testlisteneradapter;

import java.util.arraylist;
import java.util.arrays;
import java.util.list;

import static javafx.scene.input.keycode.t;

/**
 * created by litp on 2016/9/21.
 */

public class assertionlistener extends testlisteneradapter {

 /**
  * 测试方法开始的时候回调
  * @param result
  */
 @override
 public void onteststart(itestresult result) {
  assertion.flag = true;
  assertion.errors.clear();
 }


 /**
  * 测试终止时候回调
  * @param tr
  */
 @override
 public void ontestfailure(itestresult tr) {
  this.handleassertion(tr);
 }


 /**
  * test跳过 的时候执行
  * @param tr
  */
 @override
 public void ontestskipped(itestresult tr) {
  this.handleassertion(tr);
 }

 /**
  * test运行完毕时候执行
  * @param tr
  */
 @override
 public void ontestsuccess(itestresult tr) {
  this.handleassertion(tr);
 }

 private int index = 0; //错误行号


 /**
  * 处理断言，每个test执行完毕回调
  * @param tr 测试结果
  */
 private void handleassertion(itestresult tr){
  if(!assertion.flag){  //为假，就是断言出错了就执行下面的
//获取异常
throwable throwable = tr.getthrowable();
if(throwable==null){
 throwable = new throwable();
}
//获取异常堆栈信息
stacktraceelement[] traces = throwable.getstacktrace();

//创建要输出的所有堆栈信息
stacktraceelement[] alltrace = new stacktraceelement[0];

//循环获取断言的异常信息，
for (error e : assertion.errors) {
 //获取错误的堆栈数组信息
 stacktraceelement[] errortraces = e.getstacktrace();
 //
 stacktraceelement[] et = getkeystacktrace(tr, errortraces);
 //设置异常信息堆栈内容
 stacktraceelement[] message = handlemess(e.getmessage(),tr);

 //行号初始化为0
 index = 0;
 //堆栈信息合并
 alltrace = merge(alltrace, message);
 alltrace = merge(alltrace, et);
}

//如果异常信息不为空
if(traces!=null){
 traces = getkeystacktrace(tr, traces);
 alltrace = merge(alltrace, traces);
}

//保存异常信息
throwable.setstacktrace(alltrace);
tr.setthrowable(throwable);

//清空
assertion.flag = true;
assertion.errors.clear();

//输出异常信息
tr.setstatus(itestresult.failure);
  }
 }


 /**
  * 获取堆栈信息
  * @param tr
  * @param stacktraceelements
  * @return
  */
 private stacktraceelement[] getkeystacktrace(itestresult tr, stacktraceelement[] stacktraceelements){

  list ets = new arraylist<>();
  //循环获取信息
  for (stacktraceelement stacktraceelement : stacktraceelements) {
//返回测试类的堆栈信息
if(stacktraceelement.getclassname().equals(tr.gettestclass().getname())){
 ets.add(stacktraceelement);
 index = stacktraceelement.getlinenumber();  //错误行号
}
  }
  return ets.toarray(new stacktraceelement[ets.size()]);

 }

 /**
  * 合并两个堆栈信息
  * @param traces1 第一个
  * @param traces2
  * @return
  */
 private stacktraceelement[] merge(stacktraceelement[] traces1, stacktraceelement[] traces2){

  stacktraceelement[] result = arrays.copyof(traces1, traces1.length + traces2.length);
  system.arraycopy(traces2, 0, result, traces1.length, traces2.length);
  return result;
 }

 /**
  * 处理消息提示内容
  * @param mess 报错信息
  * @param tr 结果描述
  * @return
  */
 private stacktraceelement[] handlemess(string mess,itestresult tr){
  string message = "\n报错信息: "+mess;
  string method = "\n报错方法名:"+tr.getmethod().getmethodname();
  string classname = "\n报错类:"+tr.gettestclass().getrealclass().getsimplename();
  return new stacktraceelement[]{
 new stacktraceelement(message,  //内容
method, //方法名
classname+"\n报错行号", //文件名
index)};
 }
}

四、appium java的封装

1. builder.java

构建器，在每个用例上都可以很方便设置app的属性

package com.example.base;

/**
 * created by litp on 2016/9/7.
 */
public class builder {
 string devicename = baseappium.devicename;
 string platformversion = baseappium.platformversion;
 string path = system.getproperty("user.dir") + "/src/main/java/apps/";
 string apppath = baseappium.apppath;
 string apppackage = baseappium.apppackage;
 string noreset = baseappium.noreset;
 string nosign = baseappium.nosign;
 string unicodekeyboard = baseappium.unicodekeyboard;
 string resetkeyboard = baseappium.resetkeyboard;
 string appactivity = baseappium.appactivity;

 public builder setapppath(string apppath) {
  this.apppath = path + apppath;
  return this;
 }

 public builder setdevicename(string devicename) {
  this.devicename = devicename;
  return this;
 }

 public builder setplatformversion(string platformversion) {
  this.platformversion = platformversion;
  return this;
 }

 public builder setapp(string apppath) {
  this.apppath = apppath;
  return this;
 }

 public builder setapppackage(string apppackage) {
  this.apppackage = apppackage;
  return this;
 }

 public builder setnoreset(string noreset) {
  this.noreset = noreset;
  return this;
 }

 public builder setnosign(string nosign) {
  this.nosign = nosign;
  return this;
 }

 public builder setunicodekeyboard(string unicodekeyboard) {
  this.unicodekeyboard = unicodekeyboard;
  return this;
 }


 public builder setresetkeyboard(string resetkeyboard) {
  this.resetkeyboard = resetkeyboard;
  return this;
 }

 public builder setappactivity(string appactivity) {
  this.appactivity = appactivity;
  return this;
 }

 public baseappium build() {
  return new baseappium(this);
 }
}

2. baseappium.java

父类，里面封装了一堆方法，只管用，传id、name那些就行了。当然这只是一部分，仅供参考，可以自己修改添加。这个封装没有利用po模式，仅供参考，接下来的文章继续优化封装。

package com.example.base;


import org.apache.http.util.textutils;
import org.openqa.selenium.by;
import org.openqa.selenium.nosuchelementexception;
import org.openqa.selenium.timeoutexception;
import org.openqa.selenium.remote.desiredcapabilities;
import org.testng.assert;
import org.testng.annotations.aftertest;
import org.testng.annotations.beforesuite;
import org.testng.annotations.listeners;

import java.io.file;
import java.net.malformedurlexception;
import java.net.url;
import java.util.list;
import java.util.concurrent.timeunit;

import io.appium.java_client.multitouchaction;
import io.appium.java_client.touchaction;
import io.appium.java_client.android.androiddriver;
import io.appium.java_client.android.androidelement;

/**
 * created by litp on 2016/9/7.
 */
@listeners({com.example.base.assertionlistener.class})
public class baseappium {
 //调试设备名字
 public static string devicename = "minote";
 //调试设备系统版本
 public static string platformversion = "4.4.2";
 //app路径
 public static string apppath = system.getproperty("user.dir") + "/src/main/java/apps/shouhu2.2.3.apk";

 //包名
 public static string apppackage = "com.minstone.mdoctor";

 //是否需要重新安装
 public static string noreset = "true";

 //是否不重新签名
 public static string nosign = "true";

 //是否使用unicode输入法，真是支持中文
 public static string unicodekeyboard = "true";

 //是否祸福默认呢输入法
 public static string resetkeyboard = "true";

 //要启动的activity
 public static string appactivity = apppackage + ".activity.login.welcomeactivity";

 public androiddriver driver = null;


 //单个触摸操作类
 touchaction touchaction;

 //多个触摸操作时间
 multitouchaction multitouchaction;

 private static int wait_time = 10; //默认的等待控件时间
 private static int swipe_default_percent = 5; //默认滑动比例


 //构造方法
 public baseappium() {
  this(new builder());
 }

 public baseappium(builder builder) {
  print("基类初始化!");
  appactivity = builder.appactivity;
  apppackage = builder.apppackage;
  apppath = builder.apppath;
  devicename = builder.devicename;
  noreset = builder.noreset;
  nosign = builder.nosign;
  unicodekeyboard = builder.unicodekeyboard;
  resetkeyboard = builder.resetkeyboard;
 }


 /**
  * appium启动参数
  *
  * @throws malformedurlexception
  */
 @beforesuite
 public void beforesuite() throws malformedurlexception {


  desiredcapabilities capabilities = new desiredcapabilities();

  capabilities.setcapability("devicename", devicename);
  capabilities.setcapability("platformversion", platformversion);
  capabilities.setcapability("app", new file(apppath).getabsolutepath());
  capabilities.setcapability("apppackage", apppackage);
  //支持中文
  capabilities.setcapability("unicodekeyboard", unicodekeyboard);
  //运行完毕之后，变回系统的输入法
  capabilities.setcapability("resetkeyboard", resetkeyboard);
  //不重复安装
  capabilities.setcapability("noreset", noreset);
  //不重新签名
  capabilities.setcapability("nosign", nosign);
  //打开的activity
  capabilities.setcapability("appactivity", appactivity);
  //启动driver
  driver = new androiddriver<>(new url("https://127.0.0.1:4723/wd/hub"), capabilities);

 }


 @aftertest
 public void aftertest() {
  //结束这次测试
  driver.quit();
 }


 public boolean isidelementexist(string id) {
  return isidelementexist(id, false);
 }

 /**
  * 根据id判断当前界面是否存在并显示这个控件
  *
  * @param id  要查找的id
  * @param isshow 是否判断控件显示
  * @return 返回对应的控件
  */
 public boolean isidelementexist(string id, boolean isshow) {
  androidelement ae;
  try {
if (driver != null) {
 ae = driver.findelementbyid(apppackage + ":id/" + id);
 if (isshow) {
  return ae.isdisplayed();
 } else {
  return ae != null;
 }
} else {
 print("driver为空");
}
  } catch (nosuchelementexception e) {
print("找不到控件" + e.getmessage());
  }

  return false;

 }

 /**
  * 选择当前界面的有这个文字的控件
  *
  * @param name
  * @param hasshow 是否显示
  * @return
  */
 public boolean isnameelementexist(string name, boolean hasshow) {
  try {
androidelement ae = driver.findelement(by.name(name));
if (hasshow) {
 return ae.isdisplayed();
} else return ae != null;
  } catch (nosuchelementexception e) {
return false;
  }


 }

 public boolean isnameelementexist(string name) {
  return isnameelementexist(name, false);
 }


 /**
  * 判断控件时候存在
  *
  * @param byby
  * @param timeout 等待的事件
  * @return
  */
 public boolean iselementexist(by by, int timeout) {
  try {
waitauto(by, timeout);
return true;
  } catch (exception e) {
return false;
  }
 }


 /**
  * 根据id获取当前界面的一个控件
  *
  * @param id 要查找的id
  * @return 返回对应的控件
  */
 public androidelement findbyid(string id) {
  try {
if (driver != null) {
 return driver.findelementbyid(apppackage + ":id/" + id);
} else {
 print("driver为空");
}
  } catch (nosuchelementexception e) {
print("找不到控件" + e.getmessage());
  } 
  return null;
 }


 /**
  * 选择当前界面的有这个文字的控件
  *
  * @param name 内容
  * @return 找到的控件
  */
 public androidelement findbyname(string name) {
  return driver.findelement(by.name(name));
 }


 /**
  * 根据id获取当前界面的一个控件
  *
  * @param name 要查找的控件的类名
  * @return 返回对应的控件
  */
 public androidelement findbyclassname(string name) {
  try {
if (driver != null) {
 return driver.findelementbyclassname(name);
} else {
 print("dricer为空");
}
  } catch (nosuchelementexception e) {
print("找不到控件" + e.getmessage());
  } 
  return null;
 }

 /**
  * 打印字符
  *
  * @param str 要打印的字符
  */
 public  void print(t str) {
  if (!textutils.isempty(string.valueof(str))) {
system.out.println(str);
  } else {
system.out.println("输出了空字符");
  }
 }

 /**
  * click点击空格键
  *
  * @param ae 要点击的控件
  * @return 返回是否点击
  */
 public boolean clickview(androidelement ae) {
  return clickview(ae, "");
 }


 /**
  * click点击控件
  *
  * @param ae  控件
  * @param str 控件的文字描述，供错误时候输出
  * @return 返回是否存在控件
  */
 public boolean clickview(androidelement ae, string str) {
  if (ae != null) {
ae.click();
return true;
  } else {
print(str + "为空，点击错误");
  }
  return false;
 }

 /**
  * click点击指定id的view
  *
  * @param id 要点击的控件的id
  * @return 点击了返回真
  */
 public boolean clickview(string id) {
  androidelement ae = findbyid(id);
  if (ae != null) {
ae.click();
return true;
  } else {
print(id + "为空，点击错误");
  }
  return false;
 }


 /**
  * 线程休眠秒数，单位秒
  *
  * @param s 要休眠的秒数
  */
 public void sleep(long s) throws interruptedexception {
  thread.sleep(s);
 }


 /**
  * 获取触摸实例
  *
  * @return
  */
 public touchaction gettouch() {
  if (driver == null) {
print("单点触摸时候driver为空");
return null;
  } else {
if (touchaction == null) {
 return new touchaction(driver);
} else {
 return touchaction;
}

  }
 }


 /**
  * 获取多点触摸实例
  *
  * @return
  */
 public multitouchaction getmultitouch() {
  if (driver == null) {
print("多点触摸时候driver为空");
return null;
  } else {
if (multitouchaction == null) {
 return new multitouchaction(driver);
} else {
 return multitouchaction;
}

  }
 }

 /**
  * 往控件输入字符串
  *
  * @param ae  要输入的控件
  * @param str 要输入的字符串
  */
 public void input(androidelement ae, string str) {
  if (ae == null) {
print("控件为空,输入内容失败:" + str);
  } else {
ae.sendkeys(str);
  }

 }

 public void swipetoup(int during){
  swipetoup(during,swipe_default_percent);
 }
 /**
  * 向上滑动，
  *
  * @param during
  */
 public void swipetoup(int during,int percent) {
  int width = getscreenwidth();
  int height = getscreenheight();
  driver.swipe(width / 2, height * (percent - 1) / percent, width / 2, height / percent, during);
 }

 public void swipetodown(int during){
  swipetodown(during,swipe_default_percent);
 }

 /**
  * 向下滑动，
  *
  * @param during 滑动时间
  */
 public void swipetodown(int during,int percent) {
  int width = getscreenwidth();
  int height = getscreenheight();
  driver.swipe(width / 2, height / percent, width / 2, height * (percent - 1) / percent, during);
 }


 public void swipetoleft(int during){
  swipetoleft(during,swipe_default_percent);
 }

 /**
  * 向左滑动，
  *
  * @param during  滑动时间
  * @param percent 位置的百分比，2-10， 例如3就是 从2/3滑到1/3
  */
 public void swipetoleft(int during, int percent) {
  int width = getscreenwidth();
  int height = getscreenheight();
  driver.swipe(width * (percent - 1) / percent, height / 2, width / percent, height / 2, during);
 }


 public void swipetoright(int during) {
  swipetoright(during, swipe_default_percent);
 }

 /**
  * 向右滑动，
  *
  * @param during  滑动时间
  * @param percent 位置的百分比，2-10， 例如3就是 从1/3滑到2/3
  */
 public void swipetoright(int during, int percent) {
  int width = getscreenwidth();
  int height = getscreenheight();
  driver.swipe(width / percent, height / 2, width * (percent - 1) / percent, height / 2, during);
 }


 /**
  * 显示等待，等待id对应的控件出现time秒，一出现马上返回，time秒不出现也返回
  */
 public androidelement waitauto(by by, int time) {
  try {
return new androiddriverwait(driver, time * 1000)
  .until(new expectedcondition() {
@override
public androidelement apply(androiddriver androiddriver) {
 return (androidelement) androiddriver.findelement(by);
}
  });
  } catch (timeoutexception e) {
assert.fail("查找元素超时!! " + time + " 秒之后还没找到元素 [" + by.tostring() + "]", e);
return null;
  }
 }

 public androidelement waitautobyid(string id) {
  return waitautobyid(id, wait_time);
 }

 public androidelement waitautobyid(string id, int time) {
  return waitauto(by.id(id), time);
 }

 public androidelement waitautobyname(string name) {
  return waitautobyname(name, wait_time);
 }

 public androidelement waitautobyname(string name, int time) {
  return waitauto(by.name(name), time);
 }


 public androidelement waitautobyxp(string xpath) {
  return waitautobyxp(xpath, wait_time);
 }

 public androidelement waitautobyxp(string xpath, int time) {
  return waitauto(by.xpath(xpath), time);
 }

 public void waitauto() {
  waitauto(wait_time);
 }

 /**
  * ，隐式等待，如果在指定时间内还是找不到下个元素则会报错停止脚本
  * 全局设定的，find控件找不到就会按照这个事件来等待
  *
  * @param time 要等待的时间
  */
 public void waitauto(int time) {
  driver.manage().timeouts().implicitlywait(time, timeunit.seconds);
 }

 /**
  * 打开activity
  *
  * @param activityname activity的名字
  */
 public void startactivity(string activityname) {
  driver.startactivity(apppackage, activityname);
 }


 /**
  * 获取当前的activity,返回文件名
  *
  * @return
  */
 public string getcurractivity() {
  string str = driver.currentactivity();
  return str.substring(str.lastindexof(".") + 1);
 }


 /**
  * 获取当前界面的所有edittext，并依次输入内容
  *
  * @param str 要输入的数组
  */
 public void inputmanytext(string... str) {
  list textfieldslist = driver.findelementsbyclassname("android.widget.edittext");
  for (int i = 0; i < str.length; i++) {
textfieldslist.get(i).sendkeys(str[i]);
//textfieldslist.get(i).setvalue(str[i]);

  }
 }


 /**
  * 点击某个控件
  *
  * @param ae 要点击的控件
  */
 public void press(androidelement ae) {
  try {
gettouch().tap(ae).perform();
  } catch (exception e) {
print("tab点击元素错误" + e.getmessage());
e.printstacktrace();
  }
 }


 /**
  * 点击某个坐标
  *
  * @param x
  * @param y
  */
 public void press(int x, int y) {
  try {
gettouch().tap(x, y).perform();
  } catch (exception e) {
print("tab点击元素错误" + e.getmessage());
e.printstacktrace();
  }
 }


 /**
  * 长按某个控件
  *
  * @param ae 要点击的控件
  */
 public void longpress(androidelement ae) {
  try {
gettouch().longpress(ae).release().perform();
  } catch (exception e) {
print("长按点击元素错误" + e.getmessage());
e.printstacktrace();
  }
 }


 /**
  * 长按某个坐标
  *
  * @param x
  * @param y
  */
 public void longpress(int x, int y) {
  try {
gettouch().longpress(x, y).release().perform();
  } catch (exception e) {
print("长按点击元素错误" + e.getmessage());
e.printstacktrace();
  }
 }


 /**
  * 在控件上滑动
  *
  * @param element要滑动的控件
  * @param direction 方向，事件不设置默认1秒
  */
 public void swiponelement(androidelement element, string direction) {
  swiponelement(element, direction, 1000);  //不设置时间就为2秒
 }

 /**
  * 在某一个控件上滑动
  *
  * @param element在那个元素上滑动
  * @param direction 方向，up  down left right
  */
 public void swiponelement(androidelement element, string direction, int duration) {
  //获取元素的起初xy，在左上角
  int x = element.getlocation().getx();
  int y = element.getlocation().gety();
  //获取元素的宽高
  int width = element.getsize().getwidth();
  int height = element.getsize().getheight();

  switch (direction) {
case "up":
 int startx = x + width / 2;
 //在4/5的底部的中间向上滑动
 driver.swipe(startx, y + height * 4 / 5, startx, y + height / 5, duration);
 break;
case "down":
 startx = x + width / 2;
 //在4/5的底部的中间向上滑动
 driver.swipe(startx, y + height / 5, startx, y + height * 4 / 5, duration);
 break;

case "left":
 int starty = y + width / 2;
 driver.swipe(x + width * 4 / 5, starty, x + width / 5, starty, duration);
 break;
case "right":
 starty = y + width / 2;
 driver.swipe(x + width / 5, starty, x + width * 4 / 5, starty, duration);
 break;
  }
 }

 /**
  * 在某个方向上滑动
  *
  * @param direction 方向，up down left right
  * @param duration  持续时间
  */
 public void swip(string direction, int duration) {
  switch (direction) {
case "up":
 swipetoup(duration);
 break;
case "down":
 swipetodown(duration);
 break;
case "left":
 swipetoleft(duration);
 break;
case "right":
 swipetoright(duration);
 break;
  }
 }


 /**
  * 在指定次数的条件下，某个方向滑动，直到这个元素出现
  *
  * @param by控件
  * @param direction  方向，up down  left right
  * @param duration滑动一次持续时间
  * @param maxswipnum 最大滑动次数
  */
 public void swiputilelementappear(by by, string direction, int duration, int maxswipnum) {
  int i = maxswipnum;
  boolean flag = true;
  while (flag) {
try {
 if (i <= 0) {
  flag = false;
 }
 driver.findelement(by);
 flag = false;
} catch (exception e) {
 i--;
 swip(direction, duration);
}
  }
 }

 /**
  * 在某个方向滑动直到这个元素出现
  *
  * @param by  控件
  * @param direction 方向，up down  left right
  * @param duration  滑动一次持续时间
  */
 public void swiputilelementappear(by by, string direction, int duration) {
  boolean flag = true;
  while (flag) {
try {
 driver.findelement(by);
 flag = false;
} catch (exception e) {
 swip(direction, duration);
}
  }
 }


 /**
  * 获取屏幕的宽高
  *
  * @return 返回宽高的数组
  */
 public int[] getscreen() {
  int width = driver.manage().window().getsize().getwidth();
  int height = driver.manage().window().getsize().getheight();
  return new int[]{width, height};
 }

 /**
  * 获取屏幕宽度
  *
  * @return
  */
 public int getscreenwidth() {
  return driver.manage().window().getsize().getwidth();
 }

 /**
  * 获取屏幕高度
  *
  * @return
  */
 public int getscreenheight() {
  return driver.manage().window().getsize().getheight();
 }

 /**
  * 逐字删除编辑框中的文字
  * @param element 文本框架控件
  */
 public void cleartext(androidelement element){
string text = element.gettext();
//跳到最后
driver.presskeycode(keycode_move_end);
for (int i = 0; i < text.length(); i ++){
 //循环后退删除
 driver.presskeycode(backspace);
}


 }

}

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