How to Create a ListView with Custom Row Items and Dynamically Changing Text in Android?

Customize ListView Row Item in Android

The task at hand involves creating a ListView with rows displaying a header followed by changing text. To achieve this, follow the steps outlined below:

Custom Layout for Row Item:

• Create a custom row layout named 'row.xml' in your layout folder:

<code class="xml"><?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical">
    
    <TextView android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Header"/>

    <TextView 
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:id="@+id/text"/>
</LinearLayout></code>

Main XML Layout:

• Update your main XML layout to include a ListView:

<code class="xml"><?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:orientation="horizontal">

    <ListView
        android:id="@+id/listview"
        android:layout_width="fill_parent"
        android:layout_height="fill_parent">
    </ListView>
</LinearLayout></code>

Custom Adapter Class:

• Create a custom adapter class that extends BaseAdapter:

<code class="java">class yourAdapter extends BaseAdapter {

    Context context;
    String[] data;
    private static LayoutInflater inflater = null;

    public yourAdapter(Context context, String[] data) {
        this.context = context;
        this.data = data;
        inflater = (LayoutInflater) context
                .getSystemService(Context.LAYOUT_INFLATER_SERVICE);
    }

    // ... Implement other methods as required by BaseAdapter
    // such as getView(), getCount(), getItem(), getItemId()

}</code>

Java Activity:

• In your Java activity, set up the ListView and adapter:

<code class="java">public class StackActivity extends Activity {

    ListView listview;

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        listview = (ListView) findViewById(R.id.listview);
        listview.setAdapter(new yourAdapter(this, new String[] { "data1",
                "data2" }));
    }
}</code>

This approach will result in a ListView with custom row items displaying the "Header" text above dynamic text that updates periodically.

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