I saw the Android app "Mobisle Notes Free" implement a really cool ListView, where a row gets moved to the bottom if its checkbox is checked. It's not just a simple refresh, but an actual animation where you see the row travel to the bottom. Does anyone know how to implement this?
You could check out the Android example application “ApiDemos.” It provides you with some source code that can show you how to do widget based animation.
Edit:
I believe it is classes Animation1, Animation2, and Animation3.
Related
I'm using Recyclerview to show a list. I want to delete some items like IOS. In my listview template I have added a button to delete item which is invisible by default. In my activity I have another button attached at bottom (Not part of listview) and on tap of this button I want to make all delete buttons of listview visible.
My Question is how can I get reference to all delete buttons of listview in activity and is it the right way to do this?
Thanks
Assuming you have ViewHolders set up, you already have references to all the buttons in your list. All you have to do is to make them visible for every item in the list with a simple loop.
In case you haven't implemented ViewHolders I suggest you check out the documentation and take a look at some simple tutorials on how to use them.
On a side note. If I understood correctly you're making a bottom tab for your app and since you referenced iOS I gotta say this; Remember that Android and iOS are two unique operating systems with their own ways of handling things. Check out Googles pure Android documentation.
In your question title you say RecyclerView, but in your text you say ListView. The solution is similar either way, but it's best to be perfectly clear what you're doing.
In either case, there are at least two different solutions.
First, you could use a boolean flag to determine if all the the item buttons should be showing or not. You check this flag at the time the item view is inflated or created and toggle the button accordingly. If the boolean flag is ever changed, the easiest thing to do is tell the RecyclerView/ListView that the underlying data has changed and to redraw all the views. Call notifyDatasetChanged on the adapter.
The other thing you can do at the time the item buttons should change is iterate all the visible item views, find the button, and change its visibility. With RecyclerView, you can do this, and with ListView you can do this.
I need to create listview like in this picture. The listview item go over each other like google chrome tabs.. I can move up or down listview item... Could anyone tell me a good advice or tell me examples how should I do this?
Thanks
You need an iOS passbook style component like CardWalletView
You have to create some accordions type control
Here is a link which will help you
http://android-puremvc-ormlite.blogspot.com/2011/07/android-simple-accordion-panel.html
when you close the previous view you will not animate that view to the end you have to keep some margin of 2 to 3 pixels to show view as you want
Another idea is you should create some view and use drag and drop... But also you have to some Math calculation... Try this maybe you can get something
Expanding list views may help you with that. I assume that your list view will essentially expand on click and shift everything below the selected area downwards revealing only the content of that selected tab.
Expanding list views utilize the parent-child methods that would allow you to create a very rough view of what you are showing. Styling and customizing those rough layouts afterwards could very well allow you to get that look you're looking for.
Here are some links that might be useful.
http://www.androidhive.info/2013/07/android-expandable-list-view-tutorial/
http://developer.android.com/reference/android/widget/ExpandableListView.html
In my android application, I've a ListView that is loaded with a lot of items. I would like that users could move very fast through the list. I've seen that in some applications, when a list is loaded, and the user starts scrolling, a icon appears on the right of the screen, and this icon can be used to move very fast through the list.
How can I do this?
Thank you very much!
You want android:fastScrollEnabled="true".
See Vardhan's implementation of Fast Scroll for android here.
If you want to be able to customize your Fast-scroller, like choosing
your own scroller image to appear, I recommend using this source:
https://github.com/nolanlawson/CustomFastScrollViewDemo/
Basically, your listview adapter will have to implement a
sectionindexer. This section indexer can be very stripped if you don't
want to complicate things and provide simple fastscrolling though the
entire length of the list.
The direct source for the fastscroller is here:
https://github.com/nolanlawson/CustomFastScrollViewDemo/blob/master/src/com/nolanlawson/customfastscrollviewdemo/CustomFastScrollView.java
Place this view around your listview (nest your listview inside this
view in your xml layout file) and set android:fastScrollEnabled="true"
on your listview.
You might also want to check out a previous answer:
Fast Scroll display problem with ListAdapter and SectionIndexer
Source : How to use fast scroll in android?
When I remove an item from a gridview, it fades out (because I start an animation) and all the other items change their place "at once".
Is there a simple way to animate all the other items to move, so the empty spot get filled up nicely animated, and not "at once"?
I would like to do the same for adding a new Item: all existing items will move animated and make a free place at the start of the grid where the new item will appear. I could of course do this by animating every item on itself, doing something different for the items at the end of a line, etc. But I would think there is already something prepared for this?
I checked out http://developer.android.com/reference/android/view/animation/GridLayoutAnimationController.html
But that only seems to be useful for showing the grid come into view, not when it already is in view.
Also, if you know an open source program that implemented this, please let me know.
This helped me a lot, you can at least use the animations in this project, but maybe the whole thing will suit you:
https://github.com/mrKlar/PagedDragDropGrid
example on youtube here:
http://www.youtube.com/watch?v=FYTSRfthSuQ
It looks like a gridview but isn't a gridview object. I used some of the code to change my own (android) gridview, but that was a great deal of work. If you can, just use this whole project.
I want to create a horizontal listview which contain many item, one item will contain a image. When user slide listview => the count of item will be fix when it display, example display only 3 or 4 image. How can I do that? Many thanks.
Edit:
I use this
to create a HorizontalList view, everything is ok but I don;t know how to make the Next and Previous button work! Any idea?
Instead of a horizontal ListView (which, as far as I know, isn't offered by the Android SDK) you can use a HorizontalScrollView. You can add the items like to any other kind of layout class.
It looks like what you are looking for is a Paginated Gallery. I have written one here.
Its still only a couple of days old but hopefully the included Activity code will get you off the ground.