UiAutomator自動化測試框架介紹

UiAutomator自動化測試框架介紹

 

 環境搭建

1         必要條件

1.1       JDK

1.2       SDK(API高於15)

1.3       Eclipse

2         簡要步驟

2.1       安裝JDK並添加bin目錄到環境變量

2.2       添加SDK中的tools目錄和platform-tools到環境變量

2.3       安裝Eclipse並安裝ADT插件

  創建工程

1         用eclipse創建Java project

2         添加Junit庫

 

3         添加Android庫

找到sdk/platforms/android-19/下面的android.jar和uiautomator.jar並添加進來

 

4         添加完成後以下圖

 

 

  在工程中編寫case

1         分析Device當前界面的UI內容

在編寫Case以前，須要找到界面上不一樣控件的id,text,class或者description等等，來定位具體的點擊事件。咱們可使用uiautomatorviewer工具來分析界面的組織架構。

 

2         官方用例

package com.uia.example.my;

// Import the uiautomator libraries
import com.android.uiautomator.core.UiObject;
import com.android.uiautomator.core.UiObjectNotFoundException;
import com.android.uiautomator.core.UiScrollable;
import com.android.uiautomator.core.UiSelector;
import com.android.uiautomator.testrunner.UiAutomatorTestCase;

public class LaunchSettings extends UiAutomatorTestCase {   

   public void testDemo() throws UiObjectNotFoundException {       
      // Simulate a short press on the HOME button.
      getUiDevice().pressHome();
      
      // We’re now in the home screen. Next, we want to simulate 
      // a user bringing up the All Apps screen.
      // If you use the uiautomatorviewer tool to capture a snapshot 
      // of the Home screen, notice that the All Apps button’s 
      // content-description property has the value 「Apps」.  We can 
      // use this property to create a UiSelector to find the button. 
      UiObject allAppsButton = new UiObject(new UiSelector()
         .description("Apps"));
      
      // Simulate a click to bring up the All Apps screen.
      allAppsButton.clickAndWaitForNewWindow();
      
      // In the All Apps screen, the Settings app is located in 
      // the Apps tab. To simulate the user bringing up the Apps tab,
      // we create a UiSelector to find a tab with the text 
      // label 「Apps」.
      UiObject appsTab = new UiObject(new UiSelector()
         .text("Apps"));
      
      // Simulate a click to enter the Apps tab.
      appsTab.click();

      // Next, in the apps tabs, we can simulate a user swiping until
      // they come to the Settings app icon.  Since the container view 
      // is scrollable, we can use a UiScrollable object.
      UiScrollable appViews = new UiScrollable(new UiSelector()
         .scrollable(true));
      
      // Set the swiping mode to horizontal (the default is vertical)
      appViews.setAsHorizontalList();
      
      // Create a UiSelector to find the Settings app and simulate      
      // a user click to launch the app. 
      UiObject settingsApp = appViews.getChildByText(new UiSelector()
         .className(android.widget.TextView.class.getName()), 
         "Settings");
      settingsApp.clickAndWaitForNewWindow();
      
      // Validate that the package name is the expected one
      UiObject settingsValidation = new UiObject(new UiSelector()
         .packageName("com.android.settings"));
      assertTrue("Unable to detect Settings", 
         settingsValidation.exists());   
  }   
}

  Build工程

1         產生build工程所須要的配置文件

<android-sdk>/tools/android create uitest-project -n <name> -t 1 -p <path>

       name: build jar文件的名字

       1: 使用命令android list能夠查看

 

       path: 工程目錄

2         build工程jar文件

2.1配置文件建立完成後，刷新工程目錄，將會產生三個文件：build.xml、local.properties和project.properties

 

2.2    打開build.xml，將default值改爲build，以下圖

 

2.3    build工程

 

 

  運行工程

1         導入

將build好的jar文件，push到手機目錄/data/local/tmp/下

2         運行命令

adb shell uiautomator runtest LaunchSettings.jar(build出來的文件) -c com.uia.example.my.LaunchSettings(class名)

       若是想要運行class類裏具體的方法，能夠在類後面加上#方法名便可

       若是想手機單獨運行程序，不受數據線的約束，可使用--nohup

  API詳解

1         UiDevice

提供關於設備的狀態信息。你也可使用這個類來模擬設備上的用戶的行爲，如按方向鍵或者按菜單鍵

如若獲取UiDevice的對象,請使用UiDevice.getInstance()方法

Public Methods
void	clearLastTraversedText()	清除上一次輸入的文本
	Clears the text from the last UI traversal event.
boolean	click(int x, int y)	點擊座標
	Perform a click at arbitrary coordinates specified by the user
boolean	drag(int startX, int startY, int endX, int endY, int steps)	從開始座標拖拽到終點座標位置
	Performs a swipe from one coordinate to another coordinate.
void	dumpWindowHierarchy(String fileName)	dump當前界面的層次結構，並保存到/data/local/tmp/目錄下
	Helper method used for debugging to dump the current window's layout hierarchy.
void	freezeRotation()	禁用傳感器，而且在當前界面凍結轉屏
	Disables the sensors and freezes the device rotation at its current rotation state.
String	getCurrentActivityName()	獲取當前Activity的名字，此方法已被丟棄，不建議使用
	This method is deprecated. The results returned should be considered unreliable
String	getCurrentPackageName()	獲取當前包名
	Retrieves the name of the last package to report accessibility events.
int	getDisplayHeight()	獲取顯示高度，以像素爲單位
	Gets the height of the display, in pixels.
int	getDisplayRotation()	返回當前的旋轉值，0,90,180,270
	Returns the current rotation of the display, as defined in Surface
Point	getDisplaySizeDp()
	Returns the display size in dp (device-independent pixel) The returned display size is adjusted per screen rotation.
int	getDisplayWidth()	獲取顯示寬度，以像素爲單位
	Gets the width of the display, in pixels.
static UiDevice	getInstance()	Java單例模式，獲取UiDevice的對象
	Retrieves a singleton instance of UiDevice
String	getLastTraversedText()	獲取最後一次輸入的text
	Retrieves the text from the last UI traversal event received.
String	getProductName()	獲取設備的名字
	Retrieves the product name of the device.
boolean	hasAnyWatcherTriggered()	檢查是否有監聽器觸發過
	Checks if any registered UiWatcher have triggered.
boolean	hasWatcherTriggered(String watcherName)	檢查某個特定的監聽器是否觸發過
	Checks if a specific registered UiWatcher has triggered.
boolean	isNaturalOrientation()	檢查設備是不是正常的豎屏狀態
	Check if the device is in its natural orientation.
boolean	isScreenOn()	檢查屏幕是否亮起
	Checks the power manager if the screen is ON.
boolean	openNotification()	打開notification通知欄
	Opens the notification shade.
boolean	openQuickSettings()	打開quicksetting
	Opens the Quick Settings shade.
boolean	pressBack()	按返回鍵
	Simulates a short press on the BACK button.
boolean	pressDPadCenter()	軌跡球
	Simulates a short press on the CENTER button.
boolean	pressDPadDown()	軌跡球
	Simulates a short press on the DOWN button.
boolean	pressDPadLeft()	軌跡球
	Simulates a short press on the LEFT button.
boolean	pressDPadRight()	軌跡球
	Simulates a short press on the RIGHT button.
boolean	pressDPadUp()	軌跡球
	Simulates a short press on the UP button.
boolean	pressDelete()	刪除鍵
	Simulates a short press on the DELETE key.
boolean	pressEnter()	回車鍵
	Simulates a short press on the ENTER key.
boolean	pressHome()	home鍵
	Simulates a short press on the HOME button.
boolean	pressKeyCode(int keyCode, int metaState)	keycode，參照keyevent
	Simulates a short press using a key code.
boolean	pressKeyCode(int keyCode)	keycode，參照keyevent
	Simulates a short press using a key code.
boolean	pressMenu()	menu鍵
	Simulates a short press on the MENU button.
boolean	pressRecentApps()	recent鍵
	Simulates a short press on the Recent Apps button.
boolean	pressSearch()	search鍵
	Simulates a short press on the SEARCH button.
void	registerWatcher(String name, UiWatcher watcher)	註冊一個監聽器，當前指定動做被打斷的時候，處理中斷異常
	Registers a UiWatcher to run automatically when the testing framework is unable to find a match using a UiSelector.
void	removeWatcher(String name)	移除以前註冊的監聽器
	Removes a previously registered UiWatcher.
void	resetWatcherTriggers()	重置一個監聽器
	Resets a UiWatcher that has been triggered.
void	runWatchers()	強制運行全部的監聽器
	This method forces all registered watchers to run.
void	setCompressedLayoutHeirarchy(boolean compressed)	應用或禁用佈局層次壓縮
	Enables or disables layout hierarchy compression.
void	setOrientationLeft()	經過禁用傳感器，而後模擬設備向左轉，而且固定位置
	Simulates orienting the device to the left and also freezes rotation by disabling the sensors.
void	setOrientationNatural()	經過禁用傳感器，而後模擬設備轉到其天然默認的方向，而且固定位置
	Simulates orienting the device into its natural orientation and also freezes rotation by disabling the sensors.
void	setOrientationRight()	經過禁用傳感器，而後模擬設備向右轉，而且固定位置
	Simulates orienting the device to the right and also freezes rotation by disabling the sensors.
void	sleep()	鎖屏
	This method simply presses the power button if the screen is ON else it does nothing if the screen is already OFF.
boolean	swipe(Point[] segments, int segmentSteps)	在點陣列中滑動，5秒一步
	Performs a swipe between points in the Point array.
boolean	swipe(int startX, int startY, int endX, int endY, int steps)	經過座標滑動屏幕
	Performs a swipe from one coordinate to another using the number of steps to determine smoothness and speed.
boolean	takeScreenshot(File storePath)	當前窗口截屏，並將其存儲爲PNG格式默認1.0f的規模（原尺寸）和90%的圖片質量，參數爲file類的文件路徑
	Take a screenshot of current window and store it as PNG Default scale of 1.0f (original size) and 90% quality is used The screenshot is adjusted per screen rotation
boolean	takeScreenshot(File storePath, float scale, int quality)	當前窗口截屏，能夠自定義尺寸和圖片質量
	Take a screenshot of current window and store it as PNG The screenshot is adjusted per screen rotation
void	unfreezeRotation()	從新啓用傳感器，而且容許旋轉屏幕
	Re-enables the sensors and un-freezes the device rotation allowing its contents to rotate with the device physical rotation.
void	waitForIdle(long timeout)	等待當前應用程序處於空閒狀態
	Waits for the current application to idle.
void	waitForIdle()	等待當前應用程序處於空閒狀態
	Waits for the current application to idle.
boolean	waitForWindowUpdate(String packageName, long timeout)	等待窗口內容更新時間的發生
	Waits for a window content update event to occur.
void	wakeUp()	喚醒屏幕
	This method simulates pressing the power button if the screen is OFF else it does nothing if the screen is already ON.

 

2         UiSelector

用於按照必定的條件，定位界面上的控件元素。UiObject對象經過UiSelector來選取

Public Constructors
	UiSelector()	構造方法
Public Methods
UiSelector	checkable(boolean val)	是不是可選擇的屬性
	Set the search criteria to match widgets that are checkable.
UiSelector	checked(boolean val)	是否已經被選擇
	Set the search criteria to match widgets that are currently checked (usually for checkboxes).
UiSelector	childSelector(UiSelector selector)	子類
	Adds a child UiSelector criteria to this selector.
UiSelector	className(String className)	類名
	Set the search criteria to match the class property for a widget (for example, "android.widget.Button").
<T> UiSelector	className(Class<T> type)	泛型類名
	Set the search criteria to match the class property for a widget (for example, "android.widget.Button").
UiSelector	classNameMatches(String regex)	類名正則表達式
	Set the search criteria to match the class property for a widget, using a regular expression.
UiSelector	clickable(boolean val)	是否能夠被點擊
	Set the search criteria to match widgets that are clickable.
UiSelector	description(String desc)	經過content-description來選取
	Set the search criteria to match the content-description property for a widget.
UiSelector	descriptionContains(String desc)	經過content-description所包含的字符來選取
	Set the search criteria to match the content-description property for a widget.
UiSelector	descriptionMatches(String regex)	經過content-description所符合正則表達式 的字符來選取
	Set the search criteria to match the content-description property for a widget.
UiSelector	descriptionStartsWith(String desc)	經過content-description開始字符匹配來選取
	Set the search criteria to match the content-description property for a widget.
UiSelector	enabled(boolean val)	是否已經被enabled
	Set the search criteria to match widgets that are enabled.
UiSelector	focusable(boolean val)	焦點屬性
	Set the search criteria to match widgets that are focusable.
UiSelector	focused(boolean val)	當前焦點屬性
	Set the search criteria to match widgets that have focus.
UiSelector	fromParent(UiSelector selector)	父類
	Adds a child UiSelector criteria to this selector which is used to start search from the parent widget.
UiSelector	index(int index)	編號
	Set the search criteria to match the widget by its node index in the layout hierarchy.
UiSelector	instance(int instance)	索引
	Set the search criteria to match the widget by its instance number.
UiSelector	longClickable(boolean val)	是否能夠被長按
	Set the search criteria to match widgets that are long-clickable.
UiSelector	packageName(String name)	包名
	Set the search criteria to match the package name of the application that contains the widget.
UiSelector	packageNameMatches(String regex)	正則包名
	Set the search criteria to match the package name of the application that contains the widget.
UiSelector	resourceId(String id)	資源id
	Set the search criteria to match the given resource ID.
UiSelector	resourceIdMatches(String regex)	資源id正則表達式
	Set the search criteria to match the resource ID of the widget, using a regular expression.http://blog.bettersoftwaretesting.com/
UiSelector	scrollable(boolean val)	是否能夠被滑動
	Set the search criteria to match widgets that are scrollable.
UiSelector	selected(boolean val)	當前選擇屬性
	Set the search criteria to match widgets that are currently selected.
UiSelector	text(String text)	根據text來選取控件或者應用程序
	Set the search criteria to match the visible text displayed in a widget (for example, the text label to launch an app).
UiSelector	textContains(String text)	根據text中包含的字符串 來選取控件或者應用程序
	Set the search criteria to match the visible text in a widget where the visible text must contain the string in your input argument.
UiSelector	textMatches(String regex)	經過正則表達式來選取匹配的控件或者應用程序
	Set the search criteria to match the visible text displayed in a layout element, using a regular expression.
UiSelector	textStartsWith(String text)	經過文本開始字符來選取
	Set the search criteria to match visible text in a widget that is prefixed by the text parameter.
String	toString()
Protected Methods
UiSelector	cloneSelector()	克隆UiSelector

  

 

3         UiObject

UiObject主要對對象進行操做

 

 

Public Constructors
	UiObject(UiSelector selector)	UiObject的構造方法
	Constructs a UiObject to represent a view that matches the specified selector criteria.
Public Methods
void	clearTextField()	清除編輯框中的文本
	Clears the existing text contents in an editable field.
boolean	click()	點擊事件
	Performs a click at the center of the visible bounds of the UI element represented by this UiObject.
boolean	clickAndWaitForNewWindow(long timeout)	點擊對象，等待新窗口的出現， 參數爲等待超時時長
	Performs a click at the center of the visible bounds of the UI element represented by this UiObject and waits for window transitions.
boolean	clickAndWaitForNewWindow()	點擊對象，等待新窗口的出現
	Waits for window transitions that would typically take longer than the usual default timeouts.
boolean	clickBottomRight()	點擊對象的右下角
	Clicks the bottom and right corner of the UI element
boolean	clickTopLeft()	點擊對象的左上角
	Clicks the top and left corner of the UI element
boolean	dragTo(UiObject destObj, int steps)	拖拽到另外一個對象處，步長可調整拖拽的速度
	Drags this object to a destination UiObject.
boolean	dragTo(int destX, int destY, int steps)	拖拽到目標座標處，步長可調整拖拽的速度
	Drags this object to arbitrary coordinates.
boolean	exists()	對象是否存在
	Check if view exists.
Rect	getBounds()	獲取對象的矩形座標左上角和右下角的座標
	Returns the view's bounds property.
UiObject	getChild(UiSelector selector)	得到對象的子類對象，能夠遞歸獲取 子孫當中的某個對象
	Creates a new UiObject for a child view that is under the present UiObject.
int	getChildCount()	獲取下一級子類的數量
	Counts the child views immediately under the present UiObject.
String	getClassName()	獲取類名
	Retrieves the className property of the UI element.
String	getContentDescription()	獲取description
	Reads the content_desc property of the UI element
UiObject	getFromParent(UiSelector selector)	從父類獲取子類，按照UiSelector獲取兄弟類
	Creates a new UiObject for a sibling view or a child of the sibling view, relative to the present UiObject.
String	getPackageName()	獲取包名
	Reads the view's package property
final UiSelector	getSelector()	得到selector用於調試
	Debugging helper.
String	getText()	得到對象的文本屬性
	Reads the text property of the UI element
Rect	getVisibleBounds()	返回可見視圖的範圍，若是視圖是可見的， 只有可見部分報告的範圍
	Returns the visible bounds of the view.
boolean	isCheckable()	檢查對象的checkable屬性是否爲true
	Checks if the UI element's checkable property is currently true.
boolean	isChecked()	檢查對象的checked屬性是否爲true
	Check if the UI element's checked property is currently true
boolean	isClickable()	檢查對象的clickable屬性是否爲true
	Checks if the UI element's clickable property is currently true.
boolean	isEnabled()	檢查對象的enabled屬性是否爲true
	Checks if the UI element's enabled property is currently true.
boolean	isFocusable()	檢查對象的focusable屬性是否爲true
	Check if the UI element's focusable property is currently true.
boolean	isFocused()	檢查對象的focused屬性是否爲true
	Check if the UI element's focused property is currently true
boolean	isLongClickable()	檢查對象的longclickable屬性是否爲true
	Check if the view's long-clickable property is currently true
boolean	isScrollable()	檢查對象的scrollable屬性是否爲true
	Check if the view's scrollable property is currently true
boolean	isSelected()	檢查對象的selected屬性是否爲true
	Checks if the UI element's selected property is currently true.
boolean	longClick()	長按
	Long clicks the center of the visible bounds of the UI element
boolean	longClickBottomRight()	長按對象的右下角
	Long clicks bottom and right corner of the UI element
boolean	longClickTopLeft()	長按對象的左上角
	Long clicks on the top and left corner of the UI element
boolean	performMultiPointerGesture(PointerCoords... touches)	執行單手觸控手勢，可定義任意手勢和形狀
	Performs a multi-touch gesture.
boolean	performTwoPointerGesture(Point startPoint1, Point startPoint2, Point endPoint1, Point endPoint2, int steps)	執行任意的雙手觸控手勢
	Generates a two-pointer gesture with arbitrary starting and ending points.
boolean	pinchIn(int percent, int steps)	手勢操做，兩點向內收縮
	Performs a two-pointer gesture, where each pointer moves diagonally toward the other, from the edges to the center of this UiObject .
boolean	pinchOut(int percent, int steps)	手勢操做，兩點向外張開
	Performs a two-pointer gesture, where each pointer moves diagonally opposite across the other, from the center out towards the edges of the this UiObject.
boolean	setText(String text)	在對象中輸入文字
	Sets the text in an editable field, after clearing the field's content.
boolean	swipeDown(int steps)	向下滑動
	Performs the swipe down action on the UiObject.
boolean	swipeLeft(int steps)	向左滑動
	Performs the swipe left action on the UiObject.
boolean	swipeRight(int steps)	向右滑動
	Performs the swipe right action on the UiObject.
boolean	swipeUp(int steps)	向上滑動
	Performs the swipe up action on the UiObject.
boolean	waitForExists(long timeout)	等待對象出現
	Waits a specified length of time for a view to become visible.
boolean	waitUntilGone(long timeout)	等待對象消失
	Waits a specified length of time for a view to become undetectable.

 

4         UiScrollable

 

 

Public Constructors
	UiScrollable(UiSelector container)	UiScrollable的構造方法
	Constructor.
Public Methods
boolean	flingBackward()	以步長爲5的值向後滑動
	Performs a backwards fling action with the default number of fling steps (5).
boolean	flingForward()	以步長爲5的值向前滑動
	Performs a forward fling with the default number of fling steps (5).
boolean	flingToBeginning(int maxSwipes)	滑動到最前面一屏
	Performs a fling gesture to reach the beginning of a scrollable layout element.
boolean	flingToEnd(int maxSwipes)	滑動到最後一屏
	Performs a fling gesture to reach the end of a scrollable layout element.
UiObject	getChildByDescription(UiSelector childPattern, String text, boolean allowScrollSearch)	是否容許滑動來查找具有描述條件的object對象
	Searches for a child element in the present scrollable container.
UiObject	getChildByDescription(UiSelector childPattern, String text)	默認滑動來查找具有描述條件的對象
	Searches for a child element in the present scrollable container.
UiObject	getChildByInstance(UiSelector childPattern, int instance)	獲取具有UiSelector的子集，再從子集當中篩選想要的元素（不滾動）
	Searches for a child element in the present scrollable container that matches the selector you provided.
UiObject	getChildByText(UiSelector childPattern, String text, boolean allowScrollSearch)	是否容許滑動來查找具有經過文本條件的object對象
	Searches for a child element in the present scrollable container.
UiObject	getChildByText(UiSelector childPattern, String text)	默認經過滑動來查找具有經過文本條件的object對象
	Searches for a child element in the present scrollable container.
int	getMaxSearchSwipes()	獲取搜索滑動過程當中的最大滑動次數，默認常量爲30
	Gets the maximum number of scrolls allowed when performing a scroll action in search of a child element.
double	getSwipeDeadZonePercentage()	默認常量爲0.1,10%
	Returns the percentage of a widget's size that's considered as a no-touch zone when swiping.
boolean	scrollBackward(int steps)	自定義步長向後滑動
	Performs a backward scroll.
boolean	scrollBackward()	以默認步長55向後滑動
	Performs a backward scroll with the default number of scroll steps (55).
boolean	scrollDescriptionIntoView(String text)	滾動到描述所在的位置
	Performs a forward scroll action on the scrollable layout element until the content-description is found, or until swipe attempts have been exhausted.
boolean	scrollForward()	以默認步長55向前滑動
	Performs a forward scroll with the default number of scroll steps (55).
boolean	scrollForward(int steps)	自定義步長向前滑動
	Performs a forward scroll.
boolean	scrollIntoView(UiSelector selector)	滾動到元素所在的位置
	Perform a scroll forward action to move through the scrollable layout element until a visible item that matches the selector is found.
boolean	scrollIntoView(UiObject obj)	滾動到對象所在的位置
	Perform a forward scroll action to move through the scrollable layout element until a visible item that matches the UiObject is found.
boolean	scrollTextIntoView(String text)	滾動到文本對象所在的位置
	Performs a forward scroll action on the scrollable layout element until the text you provided is visible, or until swipe attempts have been exhausted.
boolean	scrollToBeginning(int maxSwipes)	自定義掃動距離滾動到開始位置
	Scrolls to the beginning of a scrollable layout element.
boolean	scrollToBeginning(int maxSwipes, int steps)	自定義掃動距離以及步長滾動到開始位置
	Scrolls to the beginning of a scrollable layout element.
boolean	scrollToEnd(int maxSwipes, int steps)	自定義掃動距離以及步長滾動到結束位置
	Scrolls to the end of a scrollable layout element.
boolean	scrollToEnd(int maxSwipes)	自定義掃動距離滾動到結束位置
	Scrolls to the end of a scrollable layout element.
UiScrollable	setAsHorizontalList()	設置界面爲水平滑動
	Set the direction of swipes to be horizontal when performing scroll actions.
UiScrollable	setAsVerticalList()	設置界面爲豎直滑動，此爲默認值
	Set the direction of swipes to be vertical when performing scroll actions.
UiScrollable	setMaxSearchSwipes(int swipes)	設置最大可掃描次數
	Sets the maximum number of scrolls allowed when performing a scroll action in search of a child element.
UiScrollable	setSwipeDeadZonePercentage(double swipeDeadZonePercentage)	設置一個部件的大小，在滑動時，視爲無接觸區的百分比
	Sets the percentage of a widget's size that's considered as no-touch zone when swiping.

 

5         UiCollection

UiCollection繼承UiObject，用於枚舉一個容器的用戶界面(UI)元素計數的目的，或安裝子元素的文本或描述條件獲取子元素對象。

Public Constructors
	UiCollection(UiSelector selector)	UiCollection的構造方法
Public Methods
UiObject	getChildByDescription(UiSelector childPattern, String text)	經過包含的條件尋找符合的子元素
	Searches for child UI element within the constraints of this UiSelector selector.
UiObject	getChildByInstance(UiSelector childPattern, int instance)	經過包含的條件尋找符合的子元素
	Searches for child UI element within the constraints of this UiSelector.
UiObject	getChildByText(UiSelector childPattern, String text)	經過包含的條件尋找符合的子元素
	Searches for child UI element within the constraints of this UiSelector.
int	getChildCount(UiSelector childPattern)	遞歸計算符合條件的子元素的數量
	Counts child UI element instances matching the childPattern argument.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

6         UiWatcher

 

Public Methods
abstract boolean	checkForCondition()	抽象方法，在監聽程序中要實現此方法
	The testing framework calls this handler method automatically when the framework is unable to find a match using the UiSelector.

 

監聽器要在中斷代碼以前運行，咱們首先要註冊一個監聽器，而後運行。註冊監聽器的方法，在UiDevice的API中有介紹，

void	registerWatcher(String name, UiWatcher watcher)	註冊一個監聽器，當前指定動做被打斷的 時候，處理中斷異常
	Registers a UiWatcher to run automatically when the testing framework is unable to find a match using a UiSelector.

 

 

 

 

註冊監聽器的結構方法以下：

 

UiDevice.getInstance().registerWatcher(「register watcher method」, new UiWatcher(){

Public boolean checkForCondition{

//在此方法體內定義監聽的方法

}

});

 

編寫用例的注意事項

1.每個類都要繼承UiAutomatorTestCase

 

2.最好在每一個類裏都定義setUp和tearDown方法，用於初始化（最好都以Home界面爲測試開始點）和結束測試（最好也以Home界面爲測試結束點）

 

3.由於此套測試框架式繼承與Junit3的，因此每一個方法最好都要以test開頭，運行單個類時，程序會run以test開頭的方法。固然這不是強制的，也能夠以#方法run用例。