During a swipe from View A to View B, when the user releases in the ViewPager
- I would like the ViewPager to freeze at the current point and to animate back, to View A.
How should I implement that?
I have never done that before, but my guess would be to create your own CustomViewPager and make it do the new features for you.
This is the link to the method of the ViewPager that handles which page is to be displayed next.
I would try to add some kind of delay here for your freeze-effect and tweak the float-values which trigger whether you successfully swipe or pop back.
Related
I'm trying to do a sort of infinite scroll. Each Fragment contains a scrolling WebView (or ScrollView), and when the user hits the bottom, I'd like to test for continued swiping to reveal the next Fragment below.
The user should not be able to go back, and I'm not interested in caching, so that rules out RecyclerView or ViewPager (modified to scroll vertically). I'm only concerned about managing the current Fragment, loading the next, and removing the last one once it's offscreen.
I want the next Fragment to follow the users touch, and I want the transition to abort if the user lets go below a certain threshold.
FragmentManager allows custom animations but they are non-interactive. I could perhaps write my own ViewGroup where I can manually animate a Fragment into position, and remove the previous Fragment manually, but I'm not sure if this is the best path forward.
Anyone have thoughts/tips on a good approach here?
I am using ViewPager with 4 pages. I need a code to navigate to the first page on specific events. Any idea how? The PagerAdapter has the methods setPrimaryItem, but I am uncertain how to use it.
Another relevant question is how to trigger swiping the pager through code, I could use that to swipe all the way to the needed view, and I imagine it will also look better.
Just use mViewPager.setCurrentItem(1), this method will navigate to that page with the swipe animation.
I have a ViewPager with a FragmentPageAdapter set for it.
And the ViewPager is show some simple fragment.
I am able to use ViewPager for swipe between fragments.
However, I don't like the scrolling effect of ViewPager that showing partial content of next fragment while swiping/dragging current fragment.
Instead, I would like to switch to next fragment at instant with swipe(but without scrolling effect) and show fragment immediately.
How can I do such thing(must use ViewPagger)?
You have to implement your own "SwipeDetector" and use mViewPager.setCurrentItem(index, false) method (second parameter indicates whether to enable animation or not).
I use a View Pager in my app to get animations between fragments, but I've got a problem because I use a button to pass fragments, I have disabled swipe option, and when a fragment pass to other, it is really quickly and you can not see anything. I want to pass more slowly so, Can you help me please?
I use this method to pass fragments:
myViewPager.setCurrentItem(int fragment_position);
If you need more information just say it.
I want to make something like transitions between ViewControllers in iOS 7 but in Android, is it possible?
Explanation: please look at image below, I have main Activity which has ViewPager inside, so we can swipe between Fragments. I want to call another Activity (or Fragment) from each Fragment (blue on image) swiping to bottom or to top but this action should be done smoothly like in ViewPager.
You can intercept swipe up and down gestures and set items in viewpager accordingly. Please read this guide on how to intercept swipes in various directions.