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问题 I am using a navigation drawer and when I select an item, it correctly replaces the previous fragment with the one I have selected, but if I open another one, and then click the back button, it goes to the previous activity instead of the previous fragment, what is wrong that it is doing this? private void selectItem(int position) { Fragment newFragment; FragmentTransaction transaction = getFragmentManager().beginTransaction(); switch (position){ case 0: //Update newFragment = new

问题 I'm trying to implement some navigation tests with espresso. Actually i want to check if the application has been closed by the use of the Back key on the main screen, just after a fresh start. Here is a piece of code i'm using. class NavigationTests { @get:Rule val mActivityTestRule: ActivityTestRule<MainActivity> = ActivityTestRule(MainActivity::class.java) @Test fun backOnEmptyHomeMustExit(){ Espresso.pressBack() Assert.assertTrue(mActivityTestRule.activity==null) } } Actually i got a test

问题 Hi I need to handle back button on fragment. I using this navigation on my mobile apps. The question is how to handle back button when I open new fragment page? I try using below code on new fragment. actionBar.setDisplayShowHomeEnabled(true); actionBar.setDisplayHomeAsUpEnabled(true); But when click the back button , the navigation will be open. Any solution ? Thanks 回答1: As you know whenever user presses Back button you need to go to the previously loaded fragment and to do that try this

问题 I have a form including listboxes. I'm trying to change order of listboxes. I tried bring front or send back but they are not working in form view. I found z index property for arranging their priority. However, following codes are not working. Is this correct way to do it? Or is there any other way with or without codes to do this? Me.Controls.SetChildIndex (Me.List0 , Me.List1) Thanks for any help. 回答1: docmd.RunCommand acCmdDesignView forms("form1").Controls("text0").inselection=true docmd

问题 Is it possible to programmatically press the back button on android through a service ? I know I can override the onBackPressed() method if I were in an Activity, but I am looking for a solution that works for a service running in the background. 回答1: Its not a good idea to have the service change the UI directly. You can send a broadcast from the service. Any activity which is open at that point, can listen to the broadcast and then decide to take appropriate action (in this case to close

问题 JSP1 links to JSP2. JSP2 call a servlet that does some stuff and ends with: response.sendRedirect(request.getHeader("referer")); return; At this point I'm back to JSP2. The problem is that pressing the browser back button from there, the page simply reload itself instead of going back to JSP1. This is correct becouse the sendRedirect adds an entry to the history. But I want to go back to JSP1. Any tips? 回答1: You shouldn't rely on the referrer header in controller actions at all for various

问题 In my project, I was using some code to handle the back button as follows. NSMutableArray *VCs = [NSMutableArray arrayWithArray: self.navigationController.viewControllers]; if ([[VCs objectAtIndex:[VCs count] - 2] isKindOfClass:[LoginViewController class]]) { [VCs removeObjectAtIndex:[VCs count] - 2]; [VCs removeObjectAtIndex:[VCs count] - 2]; } [self.navigationController setViewControllers: VCs]; In iOS 7 I am getting the desired result. But for iOS version 8.2, the value in the mutable

问题 I am having a problem with my website. I have some animations when a redirect is happening to get a transition effect from page to page. The problem is that if a user clicks the Browsers Back button it goes to the previous page but it does not reset the animations so everything stays hidden as when you exited the page. To have a demo of the error go to http://www.econtentsys.gr/affiliate/xenosk/temp/amigdalos/main.php , Click on About Me and then click on your browsers (history) Back button.

问题 I'm facing the problem of adding new elements to my vector. Let's start with the herarchy Index conatins Companies. Companies contain Stocks Index { ... vector <Company> composition; ... } Company { ... vector <Stock> stocks; ... } Stock { .... } The problem is when I start adding a company with stocks (till this moment everything is ok) to an index Comapny c1(bla bla, some arguments); mindex->composition.push_back(c1); Where "mindex" is defined as Index* mindex=new Index(); I got some memory

问题 Can anyone tell me how to redirect email intent's back button to activity where send mail button is present. I was succeeded to send mail from my android app by using email intent.But I want the flow to be exists only in my app without opening mail inbox. Can anyone help me? 回答1: If you want to send the email from your app you will have to implement IMAP or SMTP protocols in your application. There may be some third-party libraries available already And if you're asking about behavior of the