{
  "platformName": "Android",
  "platformVersion": "7.1",
  "appPackage": "com.miui.calculator",
  "appActivity": ".cal.CalculatorActivity"
}

public static final String APP_ID = "com.taobao.idlefish";

private static AppiumDriverLocalService service;

private static AndroidDriver<AndroidElement> driver;
private static WebDriverWait wait;

private void initialization() throws MalformedURLException {
  initialization(APP_ID, "com.taobao.idlefish.router.JumpActivity", true, false);
}

private void initialization1() throws MalformedURLException {
  initialization("com.miui.calculator", ".cal.CalculatorActivity", null, null);
}

/**
 * @param noReset    null will remove from the caps.
 * @param autoLaunch null will remove from the caps.
 */
protected void initialization(String appPackage, String appActivity, Boolean noReset, Boolean autoLaunch) throws MalformedURLException {
  URL url = new URL("http://localhost:4723/wd/hub");

  DesiredCapabilities capabilities = new DesiredCapabilities();
  capabilities.setCapability("automationName", "UiAutomator2" /* "Appium" */);
  capabilities.setCapability(MobileCapabilityType.PLATFORM_NAME, "Android");
  capabilities.setCapability(MobileCapabilityType.PLATFORM_VERSION, "7.1");

  capabilities.setCapability("appPackage", appPackage);
  capabilities.setCapability("appActivity", appActivity);
  // http://appium.io/docs/en/writing-running-appium/caps/
  capabilities.setCapability("noReset", noReset);
  capabilities.setCapability("autoLaunch", autoLaunch);
  
  capabilities.setCapability(MobileCapabilityType.NEW_COMMAND_TIMEOUT, 100);

  driver = new AndroidDriver<>(url, capabilities);
  wait = new WebDriverWait(driver, 20);
}

protected void finishing() {
  try {
      if (driver != null) {
          driver.quit();
      }
      if (service != null) {
          service.stop();
      }
  } catch (Exception e) {
  } finally {
      driver = null;
      service = null;
  }
}

protected void swiping() {
  Dimension windowSize = getSize();

  int startX = windowSize.width / 2;
  int startY = (int) (windowSize.height * 0.8);
  int endX = windowSize.width / 2;
  int endY = (int) (windowSize.height * 0.1);

  swipe(startX, startY, endX, endY, 1200);
}

protected void swipe(int x1, int y1, int x2, int y2, int waitMillis) {
  new TouchAction<>(driver) //
          .press(ElementOption.point(x1, y1))
          .waitAction(WaitOptions.waitOptions(Duration.ofMillis(waitMillis)))
          .moveTo(ElementOption.point(x2, y2))
          .release()
          .perform();
}

protected void touch(int x, int y) {
  new TouchAction<>(driver).tap(TapOptions.tapOptions().withPosition(PointOption.point(x, y))).perform();
}

protected void touch(Point p) {
  touch(p.x, p.y);
}

protected Dimension getSize() {
  return driver.manage().window().getSize();
}

protected Point getCenter() {
  Dimension size = getSize();
  return new Point(size.width / 2, size.height / 2);
}

private void touchAndWait() throws InterruptedException {
  touchAndWait(null);
}

private void touchAndWait(By by) throws InterruptedException {
  // 等一下界面效果
//        Thread.sleep(500);
  TimeUnit.MILLISECONDS.sleep(500);

  try {
      swiping();
  } catch (Exception e) {
      touch(getCenter());
  }

  if (by != null) {
      wait.until(ExpectedConditions.presenceOfElementLocated(by));
  }
}

private void doCalculator() throws InterruptedException {
  By btn_9_s = By.id("com.miui.calculator:id/btn_9_s");
  By btn_plus_s = By.id("com.miui.calculator:id/btn_plus_s");
  By btn_3_s = By.id("com.miui.calculator:id/btn_3_s");
  By btn_equal_s = By.id("com.miui.calculator:id/btn_equal_s");
  By textViews = By.className("android.widget.TextView");

  touchAndWait(btn_9_s);
  driver.findElement(btn_9_s).click();
  // driver.findElementByAccessibilityId("加");
  driver.findElement(btn_plus_s).click();
  driver.findElement(btn_3_s).click();
  driver.findElement(btn_equal_s).click();

  touchAndWait(textViews);
  List<? extends WebElement> allText = driver.findElements(textViews);
  boolean isOk = false;
  for (int i = 0; i < allText.size(); i++) {
      String txt = allText.get(i).getText();
      System.out.println(txt);

      // 由于第一次无法根据元素的ClassName确定顺序，所以使用遍历的方式进行断言
      if (txt.equals("= 12")) {
          isOk = true;
          break;
      }
  }

  if (isOk) {
      System.out.println("测试成功.");
  } else {
      System.out.println("测试失败.");
  }
}

public void testCalculator() throws Exception {
  try {
      initialization1();

      doCalculator();
  } finally {
      finishing();
  }
}

public void testHello() throws InterruptedException, MalformedURLException {
  try {
      this.initialization1();

      doCalculator();

      driver.activateApp(APP_ID);
//            driver.startActivity(new Activity(APP_ID, "com.taobao.idlefish.router.JumpActivity"));

      test0();
      test1();
  } finally {
      this.finishing();
  }
}

private String toString(Rectangle rect) {
  return String.format("(%s,%s,%s,%s)", rect.x, rect.y, rect.width, rect.height);
}

private void printAllView() throws Exception {
  try {
      List<AndroidElement> allText = driver.findElementsByXPath("//*");
      for (int i = 0; i < allText.size(); i++) {
          AndroidElement ele = allText.get(i);
          
          System.out.println("===========================");
          System.out.println(ele.getTagName() + ","
                  + ele.isSelected() + "," 
                  + ele.isEnabled() + "," 
                  + ele.isDisplayed() + "," 
                  + ele.getText() + "," 
                  + toString(ele.getRect()));
          
          System.out.println(ele.getAttribute("class"));
          System.out.println(ele.getAttribute("content-desc"));
          System.out.println(ele.getAttribute("text"));
      }
      
  } catch (Exception e) {
      String errMsg = e.getMessage();
      System.err.println(errMsg);

      if (errMsg.contains("A session is either terminated or not started")) {
          try {
              this.finishing();
          } catch (Exception ex) {
          }

          this.initialization();
      }
  }
}

private void doProcessManual() throws Exception {
  while (true) {
      printAllView();

      swiping();

      Thread.sleep(1000);
  }
}

public void testXianyu() throws Exception {
  try {
      this.initialization();

      doProcessManual();
  } finally {
      this.finishing();
  }
}

private void test0() {
  System.out.println("appId: " + driver.getCurrentPackage());
  System.out.println("activity: " + driver.currentActivity());
  
  System.out.println(APP_ID + " installed?: " + driver.isAppInstalled(APP_ID));

//        driver.runAppInBackground(Duration.ofSeconds(-1));
//        driver.activateApp(appId);
//        driver.closeApp();
//        driver.resetApp();
//        driver.rotate(new DeviceRotation(0, 0, 0));
//        driver.launchApp();
}

private void test1() {
  System.out.println("AppStringMap size: " + driver.getAppStringMap().size());
  System.out.println("en AppStringMap size: " + driver.getAppStringMap("en").size());
  
  System.out.println("build: " + driver.getStatus().get("build"));
  
  System.out.println("DeviceTime: " + driver.getDeviceTime());
}