We are developing an Android project. In that project we need to create a list view with multiple objects.
Inside each list view item we need to show Name, Mobile, Checkbox1 and Checkbox2
We tried with various options and we are clue less how to get this done.
You can create an .xml file, which contains a Layout (LinearLayout, RelativeLayout etc) and inside that layout put some Views like TextViews for the Name and Mobile and 2 CheckBox items for your checkboxes. I recommend this tutorial for more on ListView issues.
You need to define your own row layout and also your own ListAdapter implementation. The adapter needs to override getView to return your custom row view. There's a good example here that extends an ArrayAdapter. There's another example here that extends a CursorAdapter. Search the web for android custom listview row to get lots of other examples.
Related
My problem is simple: I need to make a layout similar to android.R.layout.simple_expandable_list_item_1 which can fit more than one textview in the layout, as well as show the little '>' symbol that indicates that the tab is expandable.
How can this best be accomplished? My first thought was to use the layout as a background of a linear layout with two textviews in it, but I can't seem to make that work.
Vogella has a pretty good tutorial on how to achieve custom list views through Adapters.
Basically, what you do is you create a Layout with the looks you want for the list items and then you extend an adapter (ArrayAdapter for instance), see section 4. Then, in your activity, you create an instance of your Adapter implementation and populate it from an Array containing the data for the list.
Also have a look at the Developers site for how to make the list scroll smoothly with the ViewHolder pattern.
And if you feel you need more info on the expandable part maybe the hive can help.
I have the following prototype:
What is the way to list views in a scroll-able way in a screen?
What I have already tried:
I tried to create a class and extends the LinearLayout class and dynamically adds my Views (the compound controls class is my view also extends LinearLayout) to the main LinearLayout. So I got a list of my views which is scroll-able.
I'm not sure what you mean, but looking at what you have tried, what's wrong with using a ListView? As the name implies, it should do exactly what you want:
What is the way to list views in a scroll-able way in a screen?
Here is a quote from the android documentation of a ListView
ListView is a view group that displays a list of scrollable items. The
list items are automatically inserted to the list using an Adapter
that pulls content from a source such as an array or database query
and converts each item result into a view that's placed into the list.
You should be able to add a ListView directly as a sub-view under your LinearLayout.
your questions seems like hard to understand.
did you mean how to set the whole page(activity) into a listview?
listviews are scrollable in default (of course, you can see it if the list is long enough and you can set the whole activity as a list).. you can customize it also by using templates (xml)
and extending ArrayAdapter of your type (let's say ArrayAdapter<UpcomingEvents>) and supply data from db...
is this what you mean?
hi I want to use a listview (probably) is it possible to fill each entry with say two buttons two text areas, and have them laid out with realtive or linear layouts?
I have used a scroll view with layout inflator to achieve this at the moment, but I'm thinking listview would be better maybe?
yes you can. you need to use a custom list view for that. making an activity by adding a listview in it and then referencing another xml to that listview using an AAdapter so that every element of the listview has the layout of the second xml file. this tutorial should help you understand the idea.
Yes you can place any widgets for the particular List Item for your listview.
For defining that kind of ListView, you have to define a custom adapter, follow the below steps:
Define a one row file for the list item, say for example, RelativeLayout with 2-3 TextViews.
Define a class by extending BaseAdapter.
Inflate the XML and do display operations inside the getView() method of this class.
Set this adapter to the ListView.
I found the following design in market of my tablet. I want to design a layout as like the below tables containing a image, text and a button for my android app. how to do this
You can achieve simple table look, by setting different colors to rows and cloumns and set appropriate margins in that here is example. Here he sets only border but you can fill any color or drawable inside column.
For this solution, i would suggest you to design custom adapter to be displayed either in GridView or in multi column ListView.
But i think GridView would be best to implement the above functionality.
Now, to define a custom adapter, you just have to create a simple class and extends BaseAdapter, and then you have to override the getView() method inside this class. Now within the getView() method, you can inflate() the custom row layout file (which you define for one item , this item xml layout file represents every items inside the GridView).
Here is the simple example for implementing a simple GridView.
For the detailed exmmple of such gridview, refer this example: Android - GridView example
I want to create list view just like this: http://dl.maximumpc.com/galleries/androidpower/Alarm_full.jpg
I need to create view like on second and fourth screens. As for fourth screen, it seems that each row has it's own layout...
I've searched Internet and even downloaded alarm source code from git repository, but it doesn't contains what I want. Any help would be useful. Thanks!
The second screen is pretty straightforward. It's basically a RelativeLayout with a full-width button at the top and a listview. The listview items will use a custom layout e.g. a RelativeLayout with a Button showing the time, a TextView to show the description, a TextView to show the selected days and a CheckBox to indicate selection. The fourth screen looks like a preference activity which can be built up from an xml file and/or custom preferences.
Yes, as John J Smith said, it's not very complicated. And i'm sure there are many articles on Internet about how to build a custom list view(at least there're many in China).
And here is a general way to do this:
To custom a list view, follow these ways in general:
1. create your own list adapter, usually extends BaseAdapter, write getView method etc;
2. bind your adapter to a list view;
3. write a layout file implements your list view item, and bind data in your adapter.
Especially, if your custom list view item has a button/checkbox/etc, you'll need more work.