Hi am developing an android application and i want to implement the pagination while displaying a list view into an activity.
I had seen many example related to this but none has solved my problem. That's why i posted this question here.
for implementing listview into the application i had developed a custom class which extending extends ArrayAdapter<BoObject> and am passing a List < MyCustom Class > into this like
new MyListAdapter(CurrentScreen.this, R.layout.show, customobjects);
For iteration I need to use the customobjects list am first getting , and i don't want to querying for server each time the more button gets clicked.
Can anyone please give a solution for my issue.?
You can try the ViewPager (use it both on Gingerbread [needs to include the supportV4 package] or on ICS), this is used when you want to scroll from left to right by a gesture, even with this ViewPager you can directly snap to a page. On the other side, you can use a ViewSwitcher
too.
Both solutions lets you define a bunch of "Pages", with both View objects you can set the current page and so you can navigate forward or back to the previous page.
there is a solution :
get 100 items in each request from server , insert them to database (sqlite) and read from database every 10 item then display them in list (pagination 10) .
when there is no more item in db send last item id to server and request for next 100 items from server . save them to db and do the routine again .
hope this helped .
Related
I currently have many rows on a table that load as a user scrolls down the page.
There is a showPrintablePageBehavior tag added to create a printable layout page upon clicking that will show the contents on the table. Currently, it only shows 25 or so rows at a time.
I am trying to figure out how to display every row on the new page once the button is clicked.
Is there anything I can add to the <af:showPrintablePageBehavior/> tag or the af:commandToolbarButton tag that could help transfer all the rows over? I know fetchSize may be an option, but I'm not sure how to implement that in.
Thank you!
To my knowledge, the showPrintablePageBehavior will not trigger a server go around. This means that you need to build another page where you fetch all data (set the fetchsize to -1) and print this. This blog https://myadfnotebook.blogspot.com/2011/01/adf-printable-pages-fetching-more-data.html shows how to do this.
I want to create some kind of ListView which will be expanding and collapsing after click on one of its item. When item of ListView is expanded show additional data. After I click another one first data collapsing and show actual one. I found one solution (https://github.com/SilenceDut/ExpandableLayout) but I'm thinking that should be other ways to do that without using external library. Am I right ?
P.S sorry for weak english
You can do it using Expandable List View:
Tutorial Link :-http://www.androidhive.info/2013/07/android-expandable-list-view-tutorial/
This is my application require :
- Get data from a server (JSON)
- Show all data report like image above. Data will display as multi page ( do not scroll), use next and previous button to switch
See how I want:
I can get data from server and show data as listview. But I have some problem and need help.
1. How to display data like image I attached. I found some way but seem it is not good
2. How to display data as multi page. I do not know exactly how much data because it depend data on Server, i have to show all data on server. Pages should auto generate depend on data.
Thanks you.
Simplest way to do it would be to create three datasets (let's say arraylists) and keep previous page data in one and current and future in the next one.
Then put an onClickListener that changes the data in listviews and then notify adapter using .notifyDatasetChanged().
This is not an default Android Behavior, So Please do not follow this design. Better to use Load More Functionality :)
You can refer links for that.
ListView to load more items when reached to an end
LoadMore library
Infinite Scroll ListView
To clarify this - what I want to do is:
a) to open a http request to obtain some XML
b) parse that XML
c) given the (fixed) number of elements, put them with a bucle in the layout.
What I am missing is the last part. An example is 'twicca' or just the official Twitter application, that fills the layout with tweets. I want to do something like that. How should I proceed?
My first thought was creating a fixed number of TextView and change those TextView (TextView1, TextView2, ...) with the content I wish. But that doesn't sound very professional...
The standard way to do this in Android is with a ListView (link to developer guide), which automatically creates as many items as needed from the data source. Most examples show pulling from a local SQLite database, but after you've loaded your XML items into an array in memory you can use an ArrayAdapter as the data source for the ListView.
Im trying to make an android-app that shows a list of albums and it displays the album-title on each listitem. So far so good.
But I would also need the album-id somehow connected to each listitem to use when I get the next level to list (the album-tracks). How can I in each list item store more values for the items then the displayed text (album-title)?
Right now Im using an ArrayList (to store the album-titles) that is connected to a ArrayAdapter wich use the simple_list_item_1 layout. I get the album-info (title, artist, id) form external xml.
I was thinking on using a multidimensional array but I don't know how to connect it to the ArrayAdapter since it only is expecting an array?
Any suggestions on how I should tackle this?
Instead of using simple list adapter you should use android custom list view.
Check out this link
Hope this will help you.
try Android sample demo project
http://developer.android.com/resources/tutorials/views/hello-gridview.html
http://developer.android.com/resources/samples/ApiDemos/src/com/example/android/apis/view/index.html