fragmentpageradapter

问题 I have implemented a FragmentPagerAdapter of 4-lashes, and in each of them I load a fragment with a different view. In one of them, pressing an image executed a AsyncTask to obtain a series of data from a server and loads a new class through an intent on the postExecute() method as follows: //AsyncTask private static class LoadJSON extends AsyncTask<String, Void, String> { protected void onPreExecute() { mProgressItem.setShowAsAction(MenuItem.SHOW_AS_ACTION_ALWAYS); mProgressItem.setVisible

问题 I have implemented a FragmentPagerAdapter of 4-lashes, and in each of them I load a fragment with a different view. In one of them, pressing an image executed a AsyncTask to obtain a series of data from a server and loads a new class through an intent on the postExecute() method as follows: //AsyncTask private static class LoadJSON extends AsyncTask<String, Void, String> { protected void onPreExecute() { mProgressItem.setShowAsAction(MenuItem.SHOW_AS_ACTION_ALWAYS); mProgressItem.setVisible

问题 i am having problems trying to update/replace Fragments in a ViewPager. the problem is that the old fragments simply won't get replaced by the new ones. i have read a couple of solutions on stackoverflow, and tried them, but it still doesn't work. anyone have any ideas why? i will explain what i am trying to do below. i have a Pojo class public class Pojo { public String text; public Pojo(String text) { this.text = text; } } i have a group class, PojoGroup public class PojoGroup { public

问题 I am trying to create an ArrayAdapter similar to the sample shown in the readme at this github page https://github.com/commonsguy/cwac-pager. I have a variety of Fragments that I want to pass into an ArrayPagerAdapter instead of just one like in the example. I'm confused on how desc.getTitle is supposed to be passed in into the newly created instance of the Fragment in the example. Also how would I be able to do this same thing using android.app.Fragment to create a new instances of Fragments

问题 I am trying to create an Activity to give the user the option to add and remove certain tabs based on an option selected by the user using a toggle button. So if I have 4 tabs I need 4 toggle buttons that hide or add each of those tabs. The tabs are shown using ViewPager and I use FragmentPagerAdpater to show the different Fragments for each tab on the screen. What would I need to do in order to show and hide these same 4 tabs? From my research so far I see that calling destroyItem and

问题 Problem :: I have one SherlockFragmentActivity in which i have added six fragments. Now out of six 3 fragments are added based on the conditions. loading the fragments :: private void loadFragments() { try { dataHelper=new DataHelper(this); menuInfo=dataHelper.getTransMenuInfo(); servicesName = new ArrayList<String>(); servicesImage = new ArrayList<Integer>(); if(menuInfo.contains("1")) { servicesName.add(dataHelper.getTransMenu_ModuleName("1")); servicesImage.add(R.drawable.icon); } if

问题 I have a ViewPager / PagerAdapter which should allow me to swipe through a series of footer images in order to change the station (by changing the string PLAYLIST): ...however when I swipe through the images - nothing seems to happen. Any suggestions are greatly appreciated! SOURCE: public class Home extends YouTubeBaseActivity implements VideoClickListener { private VideosListView listView; private ActionBarDrawerToggle actionBarDrawerToggle; public static final String API_KEY =

问题 I don't see the ListFrangment on FragmentPageAdapter after reload the fragment. I have a sliding menu with 3 options, when I click a one options, the fragment change for FragmentPageAdapter and load the ListFragment in a tab. The problem starts When I click again in the same option... the fragment change but the loaded fragment is empty, any list... Does anyone know that can happen? the code is: is a code exemple.. The code on call a FragmentPageAdapter... public class MyListaCompra extends

问题 I have 10 tabs in my activity . As soon as I open the activity the first fragment gets displayed but the method (AsyncTask) present in the next fragment gets called. And if I go to the next tab say 3rd tab then the method present in the 4th fragment gets called and so on. I don't understand this behavior. Please help! 回答1: You must know how the viewPager works populating the fragment in the different positions When you start on the position 0, then the fragment on the position 0 and the one

问题 I have issue with passing data to fragments. It crashes 0.1% of all times on production. Let's say on 100k opening of activity it happens 100 times. It looks like not very often, but it very bothering me and I think that I am doing something wrong with fragments initialization with data. The thing is, that I create fragments only one time, and all other times I need to pass data to them I am doing it next way: myFragmentInstance.setData(Object someData); And crash happens because it tells