Despues de esto podremos realizar diferentes acciones al pulsar cada elemento de la lista.
MainActivity.java
package ticoticotaa.es.listview; import android.os.Bundle; import android.support.v7.app.AppCompatActivity; import android.view.View; import android.widget.AdapterView; import android.widget.ArrayAdapter; import android.widget.ListView; import android.widget.Toast; public class MainActivity extends AppCompatActivity { ListView lvLista; String[] colores = new String[] {"rojo","amarillo","verde","azul"}; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); lvLista=(ListView)findViewById(R.id.lvLista); ArrayAdapter<String> adaptador=new ArrayAdapter<String>(this,android.R.layout.simple_expandable_list_item_1,colores); lvLista.setAdapter(adaptador); lvLista.setOnItemClickListener(new AdapterView.OnItemClickListener() { @Override public void onItemClick(AdapterView<?> parent, View view, int position, long id) { Toast.makeText(getApplicationContext(),"Pulsastes el numero "+position,Toast.LENGTH_SHORT).show(); } }); } }
activity_main.xml
<?xml version="1.0" encoding="utf-8"?><android.support.constraint.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:app="http://schemas.android.com/apk/res-auto" xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent" android:layout_height="match_parent" tools:context="ticoticotaa.es.listview.MainActivity">
<ListView android:id="@+id/lvLista" android:layout_width="368dp" android:layout_height="495dp" tools:layout_editor_absoluteX="8dp" tools:layout_editor_absoluteY="8dp" />
</android.support.constraint.ConstraintLayout>
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