android-viewpager2

ViewPager2/Tabs problem with ViewModel state

由 ε祈祈猫儿з 提交于 2020-02-29 13:20:48
问题 I am following the MVVM pattern - meaning I have a ViewModel for each Fragment. I added two tabs by using ViewPager2. My adapter looks like this: @Override public Fragment createFragment(int position) { switch (position) { case 0: return new MergedItemsFragment(); case 1: return new ValidatedMergedItemsFragment(); } return new MergedItemsFragment(); } The tabs are working. However, I noticed that the ViewModel of my MergedItemsFragment is behaving weirdly. Before I added tabs I navigated to

java.lang.IllegalStateException: Page can only be offset by a positive amount

由 梦想的初衷 提交于 2020-02-21 05:53:46
问题 I am getting this error in my Pre-Launch Reports, but it doesn't show any references to my .java files. Can anyone please shed some light on this? I'm using a ViewPager2 (1.0.0) with page transformations. Issue: java.lang.IllegalStateException: Page can only be offset by a positive amount, not by -54 FATAL EXCEPTION: main Process: [redacted], PID: 18424 java.lang.IllegalStateException: Page can only be offset by a positive amount, not by -54 at androidx.viewpager2.widget.ScrollEventAdapter

FragmentStateAdapter throws java.lang.IllegalStateException: Design assumption violated after configuration change

由 Deadly 提交于 2020-01-23 19:59:12
问题 FragmentStateAdapter throws java.lang.IllegalStateException: Design assumption violated, when the device is rotated. How do I resolve this issue ? private inner class PagerAdapter : FragmentStateAdapter(this) { private val ids = LongSparseArray<Media>() override fun getItemCount(): Int = adapter.itemCount override fun getItemId(position: Int): Long { return adapter.source!![position].time } override fun containsItem(itemId: Long): Boolean { return ids[itemId] != null } } Exception java.lang

View Pager with previous and next item smaller in size with infinite scroll

由 家住魔仙堡 提交于 2019-12-18 09:15:09
问题 Want to create the view pager same as following UI, applied custom transformer but not working. ViewPager.java public class MyViewPager extends ViewPager implements ViewPager.PageTransformer { public static final String TAG = "MyViewPager"; private float MAX_SCALE = 0.0f; private int mPageMargin; private boolean animationEnabled=true; private boolean fadeEnabled=false; private float fadeFactor=0.5f; public MyViewPager(Context context) { this(context, null); } public MyViewPager(Context

Android - Program type already present com.transition.R while importing ViewPager2 library

由 天涯浪子 提交于 2019-12-06 14:05:11
Gradle is throwing Program type already present: androidx.transition.R" after importing androidx.viewpager2:viewpager2:1.0.0-beta02 implementation 'androidx.viewpager2:viewpager2:1.0.0-beta02' implementation 'com.google.android.material:material:1.0.0' implementation 'androidx.vectordrawable:vectordrawable:1.0.1' implementation 'androidx.annotation:annotation:1.1.0' implementation 'androidx.constraintlayout:constraintlayout:1.1.3' AGPBI: {"kind":"error","text":"Program type already present: androidx.transition.R","sources":[{}],"tool":"D8"} Expected outcome: Gradle should compile with no error

How to use TabLayout with ViewPager2 in Android

由 十年热恋 提交于 2019-12-01 03:04:35
I want to use com.google.android.material.tabs.TabLayout component with Android's new ViewPager implementation androidx.viewpager2.widget.ViewPager2 . However, the setupWithViewPager(..) method provided by TabLayout supports only the old ViewPager implementation. Is there a way to bind a TabLayout to a ViewPager2 component easily? You have to use this TabLayoutMediator that mimics tabLayout.setupWithViewPager() and sets up the ViewPager2 with Tablayout . Otherwise you will have to write your own adapter that will combine both parties. Initialize the TabLayoutMediator object with an object of

How to use TabLayout with ViewPager2 in Android

由 一世执手 提交于 2019-11-30 21:55:05
问题 I want to use com.google.android.material.tabs.TabLayout component with Android's new ViewPager implementation androidx.viewpager2.widget.ViewPager2 . However, the setupWithViewPager(..) method provided by TabLayout supports only the old ViewPager implementation. Is there a way to bind a TabLayout to a ViewPager2 component easily? 回答1: You have to use this TabLayoutMediator that mimics tabLayout.setupWithViewPager() and sets up the ViewPager2 with Tablayout . Otherwise you will have to write

Use of ViewPager2 in Android

由 杀马特。学长 韩版系。学妹 提交于 2019-11-26 22:40:08
I came to know about ViewPager2 and Tried to implement it but didn't found any proper example. Can anyone tell me how can I use it. I am looking for hint, not an example. UPDATE 5 How to use TabLayout with ViewPager2 SAMPLE CODE Use below dependencies implementation 'com.google.android.material:material:1.1.0-alpha08' implementation 'androidx.viewpager2:viewpager2:1.0.0-beta02' SAMPLE CODE XMl layout <?xml version="1.0" encoding="utf-8"?> <androidx.coordinatorlayout.widget.CoordinatorLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:app="http://schemas.android.com/apk/res

Use of ViewPager2 in Android

由 你离开我真会死。 提交于 2019-11-26 02:57:10
问题 I came to know about ViewPager2 and Tried to implement it but didn\'t found any proper example. Can anyone tell me how can I use it. I am looking for hint, not an example. 回答1: UPDATE 7 Check : Migrate from ViewPager to ViewPager2 Check : Create swipe views with tabs using ViewPager2 UPDATE 6 Check out my answer if you want to implement Carousel using View Pager2 UPDATE 5 How to use TabLayout with ViewPager2 SAMPLE CODE Use below dependencies implementation 'com.google.android.material
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