android-viewpager

问题 I have a ViewPager, each page is a Fragment view. I want to test if a fragment is in a visible region. the Fragment.isVisible only test the fragment is attached to a activity the fragment is set to visible the fragment has been added to a view The ViewPager will create 3 (by default) fragment and all three of them meet the above criteria, but only one is actually visible to the user (the human eyes ) 回答1: You're right there is a better way to do this! Have a look at the FragmentPagerAdapter

问题 I'm having some problems when I try to replace one Fragment with another one in a ViewPager . Current situation I have a ViewPager with 3 pages, each one is a Fragment . In first page, I have a ListView inside a ListFragment ("FacturasFragment"). When I click on an item of that list, I use onListItemClick method for handle that event. What I want When list item is clicked, I want to replace ListFragment (contains a list of invoices) with another Fragment ("DetallesFacturaFragment", contains

问题 I want to know the current page position of the ViewPager . I create an adapter and set this adapter to the ViewPager . Now I want to know the current page number or position of the current view, because I want to start some extra events on that particular page. I used viewPager.setCurrentItem(1); for setting the first item. Is there a similar method for getting the current page? 回答1: in the latest packages you can also use vp.getCurrentItem() or vp is the viewPager , pageListener = new

问题 I understand the lowest number I can give setOffscreenPageLimit(int) is 1. but I need to load one page at a time because memory problems. Am i going to have to use the old style tabhost etc? or is there a way/hack I can make my viewPager load one page at a time? My Adapter extends BaseAdapter with the ViewHolder patern. 回答1: I was having the same problem and I found the solution for it: Steps: 1) First Download the CustomViewPager Class from this link. 2) Use that class as mentioned below: In

问题 Probably many of you (as me), have problem with creating ViewPager with bottom dots, like this: How do you create such an Android ViewPager? 回答1: All we need are: ViewPager, TabLayout and 2 drawables for selected and default dots. Firstly, we have to add TabLayout to our screen layout, and connect it with ViewPager . We can do this in two ways: Nested TabLayout in ViewPager <android.support.v4.view.ViewPager android:id="@+id/photos_viewpager" android:layout_width="match_parent" android:layout

问题 I have a fragment which contains a ViewPager. The ViewPager is associated with an adapter that contains a set of fragments. Upon loading the parent fragment, I am met with an IllegalStateException with the message: java.lang.IllegalStateException: Recursive entry to executePendingTransactions . Some research has led me to the conclusion that the system is unable display fragments within another fragment, HOWEVER there seems to be some indication that it is possible to do exactly this with the

问题 I am using Jake's ViewPageIndicator and want to display Images like a swipe gallery. Any refernce link where i can get started. I have implemented the basic viewpager and now want to implement image viewpaper as below Is it possible to to achieve using ViewPageIndicator ? 回答1: In Jake's ViewPageIndicator he has implemented View pager to display a String array (i.e. ["this","is","a","text"] ) which you pass from YourAdapter.java (that extends FragmentPagerAdapter) to the YourFragment.java

问题 Jon Willis has posted on how to enable an infinite scrolling with his code. In there he said that he made some changes in the ViewPager class int the android support library. Which changes have been made and how is it possible to "recompile" the library with the ViewPager change? 回答1: I solved this problem very simply using a little hack in the adapter. Here is my code: public class MyPagerAdapter extends FragmentStatePagerAdapter { public static int LOOPS_COUNT = 1000; private ArrayList

问题 I'm trying to dynamically add and remove Fragments from a ViewPager, adding works without any problems, but removing doesn't work as expected. Everytime I want to remove the current item, the last one gets removed. I also tried to use an FragmentStatePagerAdapter or return POSITION_NONE in the adapter's getItemPosition method. What am I doing wrong? Here's a basic example: MainActivity.java public class MainActivity extends FragmentActivity implements TextProvider { private Button mAdd;

问题 I want to display only those images that were loaded into cache memory once we downloaded from url using Universal Image Loader Example I have 15 URLS to download image and display in ViewPager , but out of them only 5 were downloaded and i closed the app.. Now i don't have any internet connection to get all the other images from web, but app will show only 5 images and remaining pages will be blank.. Is is possible to get the list of only those images from cache Memory ?? How can we restrict