I have a ViewFlipper with multiple views added dynamically. I override onTouchEvent (and onInterceptTouchEvent) in order to get the down, move and up events on the views, so I know when to animate left and right.
Now everything works fine, except that there is a small flicker (one of the other views is displayed on top for a split second) at the beginning of the swipe. This only happens after the first swipe is done.
I looked at the source code for the Home screen app on Android, which helped a lot, but they don't use the ViewFlipper, so it's a little different.
Did anyone encounter the same problem?
Thanks!
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I have seen an app which has different type of scrolling. I hope images attached will be able to explain it. Here the list when scrolled up, moves up by taking DownloadAll, Playall button up too. Later on DownloadAll and PlayAll button stops going up and only the list scrolls up.
I don't know what this is called as. I tried searching, but could not find anything similar.
How can I achieve this type of scrolling?
Take a look at "Libraries for developers" it has a section of listview where you can find different styles of listviews (plus scrolling animations such as sticky, animated scrollview, flabby etc...)
I am trying to achieve multiple scrollable views on one activity.
I am using viewpager, in each screen there will be multiple buttons using baseadapter, where clicking on one will start certain level, similar to what you see in many of the current games.
I managed to do this and it is all good, one thing I couldn't do is to stop the page/buttons from scrolling vertically, even when all buttons are already on display, you still can scroll them up and down :(
when you scroll horizontally, it goes to the next/previous page, that is good, but how to disable scrolling vertically?
I am considering doing the hole thing in canvas, and make it from scratch, I just don't want to do it the hard way and want to learn the easy way of doing it, if there is any.
I've made an activity that looks a lot like the level select screen from angry birds: there is a grid of button, and you can scroll through pages of them by swiping right or left.
I built it by creating a layout of the buttons, and then adding those layout to a Gallery view.
The problem is the animation is jerky, even if you swipe extra slowly, the content jumps ahead. Even when you fling the gallery page, it skips and jumps along its way to its destination.
I am wondering how to fix this: Maybe the complex layout it making it non responsive during the inflate?
Do you know how to fix this, or of a good way to do a workaround using some other approach that will let me have 3 or more screens smoothly swiping from page to page?
You should be using ViewPager. This is available in android support packages. Gallery Widget will not be smooth if you add components into it which has a lot of touch actions.
http://android-developers.blogspot.in/2011/08/horizontal-view-swiping-with-viewpager.html
I have searched a lot but I couldn't find an answer.
I want to implement something like in Go Launcher. When you drag an icon in app drawer and move it out of container top or bottom bound, the list begins to scroll.
So far, I have tried following things:
Dispatch touch events to simulate scrolling - impossible while touching the screen
Use smoothScrollBy() method - almost there, but it scrolls only screen height distance
Use scrollBy() - it moves only the container and leaves blank space. I would put there some rows if only I could be able to reuse views that went off the screen.
I need the ListView to scroll SMOOTHLY.
So here goes ma question. Anybody knows how can it be done? I'll put a gratitude in About section of my app to person who will help me:)
using listview and try scrollToPosition（），or smoothscrollBy（）
This is my first question on StackOverflow, but I've learned a lot here already.
Now I have a problem, which I couldn't solve.
I have a horizontal scroll view with some buttons on it (let's say 20 buttons). When I scroll and stop the scrollview, it needs some time to accept clicks by buttons. I mean - onClick method desn't fire.
It could be observed best when scrolling is fast, and stops rapidly because of coming to the end of scrollbar.
Then it takes 2 clicks to get the button action.
I think this is some focus problem, or it's about of scrollview events implementation on scrolling.
As a ScrollView moves along, it unloads out-of-focus things and loads coming-into-focus things. This may be why the button's click takes a bit to register.
A project of mine learned this the hard way after we had already implemented everything in it. It worked great before the ScrollView had large amounts of content. Then once it did, it was super laggy and that's when we learned this.