How do you show multiple ListViews in a single Activity in an Android app?
How do you create a UI similar to the Anrdoid Market app UI?
Step 1. Designing a custom layout in a layout .xml file:
Declare a LinearLayout.
Declare android:weightSum="1.0". This sets the total weight from which each View on the screen can take part (see in a minute).
Everywhere you want a ListView, add the element.
I nested mine inside a vertical LinearLayout, because I added more Views to it. This LinearLayout takes a .4 part of the weight on the screen (Divide how you want).
(Note: I hid most properties to keep it short)
<LinearLayout android:weightSum="1.0"><LinearLayout android:layout_weight=".4"> <TextView></TextView> <ListView android:orientation="vertical"></ListView> </LinearLayout></LinearLayout>Step 2. Designing a layout for each item in the ListView:
You probably want a TextView. I didn't try it, but I guess you can put images here also.
<TextView></TextView>Step 3. Filling the List with items in the code:
create a new class that extends Activity. Note that we are not extending ListActivity which provides a good framework for a single ListView.
public class MultipleListViews extends Activity
In the onCreate method, setContentView to your custom layout.
@Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.custom_layout);}Next, get the ListView object using findViewById.
ListView lv = (ListView)findViewById(R.id.list_view1);Now comes the part we fill-in the items into the list with an array of String, using the ArrayAdapter generic to String
lv.setAdapter(new ArrayAdapter<String>(this, R.layout.list_item,strings[]));Repeat step 3 for each ListView you want to populate with items on the Activity.
And that's it! you have a single Android Activity with multiple ListViews!
I hope this how-to helps you create complex custom layouts and advanced apps on Android by showing multiple ListViews in a single Activity.