fragmentstatepageradapter

问题 I made an application extending an activity, all worked fine. To improve the application I changed the activity to Fragment (using onCreateView , onActivityCreated), but now all the images not shown. I don't get any errors. I open the Fragments inside the FragmentActivity using FragmentStatePagerAdapter. Is there something I'm missing ? Fragment XML: <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:app="http://schemas.android.com/apk/res-auto" android:layout

问题 I am working on fragment activity to work on gingerbread OS. when I am trying to run the application on gingerbread emulator the application is getting forced close due to ClassNotFound error. I am providing my main fragment activity code below A peace of help would be appreciable. package com.example.android.effectivenavigation; import android.annotation.SuppressLint; import android.annotation.TargetApi; import android.app.ActionBar; import android.app.FragmentTransaction; import android.os

问题 In my app I have activity with tabs (let's say 10 tabs). Each tab page contains Fragment with ListView (data displayed in this ListView is loaded dynamically from my server). I use ViewPager to display these pages. I don't want to keep all the Fragments in memory, so I decided to use FragmentStatePagerAdapter (My adapter class extends these class). Let's say 3rd tab is selected. Then, when I go for example to the first tab, Fragment for this tab should be created from scratch (that's fine, it

问题 I am working on developing an Android application which uses ActionBarSherlock and ViewPagerIndicator. The main activity is a SherlockFragmentActivity and users navigate between the fragments via tabs on the action bar. All of the tabs are SherlockListFragments and most only contain a ListView. However, one fragment (HeadlinesFragment) contains a ViewPager, CirclePageIndicator, and a ListView for tablets, and only a ListView on phones. The ViewPager has a FragmentStatePagerAdapter which

问题 I have 4 fragments in a viewpager. And FragmentStatePagerAdapter inside the activity where my viewpager is. FragmentStatePagerAdapter's newInstance() method takes as parameter layout id, therefore each fragment has it's own layout: ViewPager pager; public class MainActivity extends FragmentActivity{ @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); pager = (ViewPager) findViewById(R.id.viewPager); pager

问题 I have used ViewPager with Fragment . But it loads two pages at time. Is there any way to load only one page in viewpager ? 回答1: This might be the thing you are looking for: mPager.setOffscreenPageLimit(n); // where n is the number of offscreen pages you want to load. **The minimum value of it can be "1" as you said. ** check this link and also read the comments. 回答2: setOffScreenPageLimit method has a limit of minimum 1. If you'll try to set smaller limit than this, it will use its default

问题 I'm trying to get the activity calling getActivity() in the fragments contained in a ViewPager and this ViewPager is contained inside a Fragment. I need to call some methods from this activity in those fragments but the getActivity is always returning NULL for this fragments. I don't know if this is a good approach but I need the fragments contained by the view pager to update their contents based on action bar actions and display messages saying is done or there was an error. Help with this

问题 I have an Android app that uses ViewPager and FragmentStatePagerAdapter. I however need to add a new feature in which I have to know the swipe direction to move from one fragment view to another, left or right. (i.e, when I swipe left, I would do one thing, and when I swipe right I would do something else). Please note, I do not need the events to happen AFTER the swipe is over. I have to do those events as the swipe occurs. I thought of using setOnPageChangeListener() but it does not tell me

问题 I have an activity that contains a TabLayout and uses a fragment for each tab. In return, that fragment contains another fragment for use with ViewPager. This is my setup: RoutineActivity.java public class RoutineActivity extends AppCompatActivity { private ArrayList<CategoryFragment> categories = new ArrayList<>(); private TabLayout tabs; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_routine); // Set the

问题 there are to many threads talking about this but i tried everything and doens't seem to work. My Problem is kinda simple i have a viewpager with 5 fragments pages. Each of this fragment has the same layout only 1 edit text, and the issue is if i write something on the editext onswipe to next or the previous page i would like to reset that edittext. For example: PAGE1: editext=2929 ---(swipe)--- PAGE2: edittext = 0 ----(swipe)--- PAGE1:edittext = 0 But it always shows the 2929. I to do this