Robotium DialogUtils「建议收藏」

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package com.robotium.solo;
import android.app.Activity;
import android.content.Context;
import android.os.SystemClock;
import android.view.ContextThemeWrapper;
import android.view.View;
import android.view.inputmethod.InputMethodManager;
import android.widget.EditText;

/**
* 弹框处理工具类
* Contains the waitForDialogToClose() method.
*
* @author Renas Reda, renas.reda@robotium.com
*
*/

class DialogUtils {
// activity操作工具类
private final ActivityUtils activityUtils;
// view获取工具类
private final ViewFetcher viewFetcher;
// 等待工具类
private final Sleeper sleeper;
// 1s
private final static int TIMEOUT_DIALOG_TO_CLOSE = 1000;
// 200ms
private final int MINISLEEP = 200;

/**
* 构造函数
* Constructs this object.
*
* @param activityUtils the {@code ActivityUtils} instance
* @param viewFetcher the {@code ViewFetcher} instance
* @param sleeper the {@code Sleeper} instance
*/

public DialogUtils(ActivityUtils activityUtils, ViewFetcher viewFetcher, Sleeper sleeper) {
this.activityUtils = activityUtils;
this.viewFetcher = viewFetcher;
this.sleeper = sleeper;
}

/**
* 检查在指定时间内弹框是否关闭了.
* Waits for a {@link android.app.Dialog} to close.
*
* @param timeout the amount of time in milliseconds to wait
* @return {@code true} if the {@code Dialog} is closed before the timeout and {@code false} if it is not closed
*/

public boolean waitForDialogToClose(long timeout) {
// 先等待弹框出现
waitForDialogToOpen(TIMEOUT_DIALOG_TO_CLOSE, false);
// 设置超时时间
final long endTime = SystemClock.uptimeMillis() + timeout;
// 循环检查弹框是否关闭了
while (SystemClock.uptimeMillis() < endTime) {

if(!isDialogOpen()){
return true;
}
// 等待200ms
sleeper.sleep(MINISLEEP);
}
return false;
}

/**
* 检查指定时间内，是否有弹框出现，
* timeout 设置的指定超时时间,单位 ms
* sleepFirst 是否需要先等待500ms,再做检查
* Waits for a {@link android.app.Dialog} to open.
*
* @param timeout the amount of time in milliseconds to wait
* @return {@code true} if the {@code Dialog} is opened before the timeout and {@code false} if it is not opened
*/

public boolean waitForDialogToOpen(long timeout, boolean sleepFirst) {
// 设置超时时间
final long endTime = SystemClock.uptimeMillis() + timeout;
// 是否需要等待500ms后再查找 (给Dialog启动的时间)
if(sleepFirst)
sleeper.sleep();
// 循环检查是否弹框出现了
while (SystemClock.uptimeMillis() < endTime) {

if(isDialogOpen()){
return true;
}
// 等待300ms
sleeper.sleepMini();
}
return false;
}

/**
* 检查是否有弹框出现
* Checks if a dialog is open.
*
* @return true if dialog is open
*/

private boolean isDialogOpen(){
// 获取当前显示的activity
final Activity activity = activityUtils.getCurrentActivity(false);
// 获取当前的所有DecorView类型View
final View[] views = viewFetcher.getWindowDecorViews();
// 获取最新的DecorView,DecorView是根
View view = viewFetcher.getRecentDecorView(views);
// 遍历检查是否有打开的弹框
if(!isDialog(activity, view)){
for(View v : views){
if(isDialog(activity, v)){
return true;
}
}
}
else {
return true;
}
return false;
}

/**
* 判断decorView是否是给定activity的，即检查弹框是否是当前activity的
* Checks that the specified DecorView and the Activity DecorView are not equal.
*
* @param activity the activity which DecorView is to be compared
* @param decorView the DecorView to compare
* @return true if not equal
*/

private boolean isDialog(Activity activity, View decorView){
// 检查decorView是都可见的，不可见直接返回false
if(decorView == null || !decorView.isShown()){
return false;
}
// 获取Context
Context viewContext = null;
if(decorView != null){
viewContext = decorView.getContext();
}
// 获取需要的Context
if (viewContext instanceof ContextThemeWrapper) {
ContextThemeWrapper ctw = (ContextThemeWrapper) viewContext;
viewContext = ctw.getBaseContext();
}
// 获取activity对应的Context
Context activityContext = activity;
Context activityBaseContext = activity.getBaseContext();
// 检查Context 是否是一致的,并且 activity不是在弹框中的
return (activityContext.equals(viewContext) || activityBaseContext.equals(viewContext)) && (decorView != activity.getWindow().getDecorView());
}

/**
* 隐藏软键盘
* editText 指定的编辑框
* shouldSleepFirst 是否要先等待500ms再操作
* shouldSleepAfter 执行完后是否要等待500ms再返回,仅对传入editText非null有效
* Hides the soft keyboard
*
* @param shouldSleepFirst whether to sleep a default pause first
* @param shouldSleepAfter whether to sleep a default pause after
*/

public void hideSoftKeyboard(EditText editText, boolean shouldSleepFirst, boolean shouldSleepAfter) {
// 获取当前activity
Activity activity = activityUtils.getCurrentActivity(shouldSleepFirst);
// 获取输入控制管理器服务
InputMethodManager inputMethodManager = (InputMethodManager) activity.getSystemService(Activity.INPUT_METHOD_SERVICE);
// 调用隐藏软键盘方法
if(editText != null) {
inputMethodManager.hideSoftInputFromWindow(editText.getWindowToken(), 0);
return;
}
// 如果没有指定editText,获取当前焦点所在的View
View focusedView = activity.getCurrentFocus();
// 如果获取的 View不是EditText
if(!(focusedView instanceof EditText)) {
// 获取当前页面的最新 EditText
EditText freshestEditText = viewFetcher.getFreshestView(viewFetcher.getCurrentViews(EditText.class));
// 如果可以取到EditText那么设置可用的
if(freshestEditText != null){
focusedView = freshestEditText;
}
}
// 隐藏软键盘
if(focusedView != null) {
inputMethodManager.hideSoftInputFromWindow(focusedView.getWindowToken(), 0);
}
// 如果设置了等待，那么等待500ms后返回
if(shouldSleepAfter){
sleeper.sleep();
}
}
}