android listview select from top with problems - android

I add header view to listview ,and there is a webview in header to show local html content,and listview shows comments.
I user selectFromTop after adapter has finished load data in order to show first comment item,but some times it doesn't work,what's wrong??

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How to show listview items and limit them to have pages like?

I'm using Android Studio, and I have a listView that musts display an important amount of items. showing all of these items have a huge impact on performances. SO I would like to show them 10 by 10, and with a button show the 10 next items. After some researches, I found this android How to limit list items display in ListView and a button show more and this How to limit list items display in ListView by 10 and next 10after clicking next button. But these didn't lead me to a success. The 1st link looks easier but I didn't know where to put the code samples to make it work. Thanks for help !
You dont need to show "Load More" Button always. You can use Android's Recycler View for this. It will load only the data which can be shown on screen. Rest of the data will be loaded as you scroll down. And the view which is scrolled up (Vanishing views) are recycled automatically.
Check this links
https://developer.android.com/training/material/lists-cards.html
https://guides.codepath.com/android/using-the-recyclerview
https://www.binpress.com/tutorial/android-l-recyclerview-and-cardview-tutorial/156
First link question have a simple answer, If you made a custom adapter for populating listview then there will be a getCount() method which will return the number of items you want to show on listview. if you have not getCount() method then simply override it.
Link
there i(variable) have that value which number if items you want to show on listview, on refresh button click increment the value of i(variable) that will again refresh the whole listview and add the total number of items in listview which is the value of i(variable)

Refresh listview in fragment

In my android application, I have one spinner box and two edit text box for adding item.When I click on add button all the data will store in database and display in below Item list (listview display in my first image) by refreshing listview.
My problem is, when I click on add button at a time only one list is display and listview heading is also gone.
May be this problem is raised due to refreshing of listview.
I searched on google and found notifyDataSetChanged() method is used for refreshing list view but I don't know how notifyDataSetChanged() method is used in fragment?
Does anybody know how to use this method in fragment?
I am new to fragment. In my app all the java code is developed using fragment activity, and xml file is simple layout.(LinearLayout/RelativeLayout)
You can see my screen here:
1)First image show list heading.
2)Second image show List item.
You need to setAdapter again to your listview after adding new data. it will show new data int listview.
if not get, post your code where you setAdapter to listview.
You have to first add item in Arraylist/List which you passed in Adapter then after you can call below code..
adapter.notifyDataSetChanged();
listView.invalidateViews();

Get all data of one row by click on a Button?

I use below code for get data of one row
View vListSortOrder;
vListSortOrder=getListView().getChildAt(MyPositionOfRow);
TextView edit=(TextView)vListSortOrder.findViewById(R.id.MyLabelId);
Toast.makeText(getApplicationContext(), edit.getText(), 1).show();
But My problem is item that not shown in the listView
for Ex: I have 20 item .In MyPhone Screen 10 item of ListView displays.
when MyPositionOfRow set to 0_9 not problem.
when MyPositionOfRow set to 10 or above my program will be crash
How fix it?
Or other way to get data of one row in listView.
You have to use Adapter for interaction with ListView
Your application is crashing, because during UI execution in memory existed only 9 items of ListView.
If you will scroll list to the up - upper item moves to the bottom for memory reducing. And we have to use adapter for correct changing of the item's content.
Really nice article you can find here:
http://www.vogella.com/articles/AndroidListView/article.html

android Listview

i am using list view to store date in sqlite database. In that the driver taking one trip.In that trip contain number of stops( Delivery, Begining of break, End of break, Begining of lunch, End of lunch, End of Trip). If i add the Begining of trip, all other stops will be added inside the trip,,,,, until the end of the trip......
Problem is
I have 2 pages first page having some listview.when i click the first row of the listview it show another set of listview in 2nd page. so each row in the main listview(1st page) have corresponging set of sub listview(2nd page) in the secong page.
All the stops are showing in the same page... any one help for my problem
I got the point regarding your problem. I think you want to have listview where you click on any trip item from trip listview and it display sub-items related with clicked item.
If my above assumption is right, then you should implement ExpandableListView.
Here are the examples which you can refers to and get more idea:
http://coderzheaven.com/index.php/2011/04/expandable-listview-in-android-using-simpleexpandablelistadapter-a-simple-example/
http://techdroid.kbeanie.com/2010/09/expandablelistview-on-android.html
Problem is I have 2 pages first page having some listview.when i click the first row of the listview it show another set of listview in 2nd page. so each row in the main listview(1st page) have corresponging set of sub listview(2nd page) in the secong page.
In your case you have to use ExpandableListView
check below below links, hope it will help you!
How to use ExpandableListView
Custom Expandable Listview
Android Expandable ListView simple Example in android.
How to create a custom ExpandableListView
Android-SlideExpandableListView

loading list page wise in a listview

I have a XML file and in that there is some images and text to load in the list view. I have a custom adapter to upload the data in a list view. i have common cell for each list item.
I want that when list is loading it only fetches for 10 data items and load them to list and when user scroll the list then it fetches next 10 items...
I have seen some of the example in some places but didn't get what i want.
can any body please help me
Check out Endless Adapter... it does the trick perfectly

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