Android Open Source - ExpendableListView Main Activity

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From Project

Back to project page ExpendableListView.

License

The source code is released under:

Apache License

Java Source Code

package com.example.listview.expendable;
/*  ww  w.jav a 2s.c  o m*/
import android.app.Activity;
import android.os.Bundle;
import android.util.SparseArray;
import android.view.Menu;
import android.view.MenuItem;
import android.widget.ExpandableListView;

public class MainActivity extends Activity {
    // More efficient than HashMap for mapping integers to objects
    SparseArray<Group> groups = new SparseArray<Group>();

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        
        createData();
        ExpandableListView listView = (ExpandableListView) findViewById(R.id.listView);
        MyExpandableListAdapter adapter = new MyExpandableListAdapter(this,
                groups);
        listView.setAdapter(adapter);
    }
    
    public void createData() {
        for (int j = 0; j < 5; j++) {
            Group group = new Group("Test " + j+"\nPackage" + j);
            for (int i = 0; i < 5; i++) {
                group.children.add("Sub Item" + i);
            }
            groups.append(j, group);
        }
    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        // Inflate the menu; this adds items to the action bar if it is present.
        getMenuInflater().inflate(R.menu.main, menu);
        return true;
    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        // Handle action bar item clicks here. The action bar will
        // automatically handle clicks on the Home/Up button, so long
        // as you specify a parent activity in AndroidManifest.xml.
        int id = item.getItemId();
        if (id == R.id.action_settings) {
            return true;
        }
        return super.onOptionsItemSelected(item);
    }
}

Java Source Code List

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