Populating ListView with ArrayList

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ListView

There are multiple ways to populate the ListView items, we can do this using ArrayAdapter, BaseAdapter etc.


Populating list with with DataBase  and Custome Adapter is already posted

Polpulating ListView With DataBase
Populating ListView with Custom Adapter


Populating ListView With Custom Adapter Example

In this Post I will discuss how to populate ListView directly with ArrayList .
We will populate the ListView with ArrayList of Animals here  and also handle the click event on Item, we will show the Toast with Animal name which is clicked

main.xml

<LinearLayout
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:orientation="vertical"
    android:background="#4D9494"
    xmlns:android="http://schemas.android.com/apk/res/android">

    <TextView
        android:id="@+id/textView1"
        android:layout_marginTop="80dp"
        android:gravity="center_horizontal"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:text="Populating ListView with ArrayList Example"
        android:textAppearance="?android:attr/textAppearanceLarge" />

    <Button
       android:id="@+id/butttonShowAnimal"
        android:layout_marginTop="25dp"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:text="Show Animals List"
        />
   

</LinearLayout>

animal_list.xml     

( For AnimalListActivity to show Animal Names, this layout contains only a ListView)

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical" >
   
    <ListView
        android:id="@+id/listViewAnimals"
        android:layout_width="fill_parent"
        android:layout_height="fill_parent"
        android:dividerHeight="0.1dp"
        android:divider="#0000CC"
        >
    </ListView>
    
</LinearLayout>

MainActivity.java

From this Activity when you click   Show Animals List , AnimalListActivty will start which showa the list of Animals.


public class MainActivity extends Activity
{
       
    @Override
    protected void onCreate(Bundle savedInstanceState)
    {
             super.onCreate(savedInstanceState);
             setContentView(R.layout.main);
            
                   // Get The Refference Of Button  
             Button btnShowAnimal=(Button)findViewById(R.id.buttonShowAnimal);
                        
          
            // Set OnClick Listener on  button  and start AnimalListActivity when clicked on Button
             btnShowAnimal.setOnClickListener(new View.OnClickListener() {
                   
                    public void onClick(View v) {
                        // TODO Auto-generated method stub
                       
                        /// Create Intent for AnimalListActivity and Start The Activity
                        Intent intentAnimalList=new Intent(getApplicationContext(),AnimalListActivity.class);
                        startActivity(intentAnimalList);
                    }
                });
    }
}

ShowAnimalsListActivity.java

(this Activity will inflate the animal_list layout and show  the List of Animals)

public class ShowAnimalsListActivity extends Activity
{
   
        ArrayList<String> animalsNameList;
        public void onCreate(Bundle saveInstanceState)
        {
                super.onCreate(saveInstanceState);
                setContentView(R.layout.animal_list);
                
               // Get the reference of ListViewAnimals
                ListView animalList=(ListView)findViewById(R.id.listViewAnimals);
               
               
                 animalsNameList = new ArrayList<String>();
                 getAnimalNames();
                 // Create The Adapter with passing ArrayList as 3rd parameter
                 ArrayAdapter<String> arrayAdapter =     
                 new ArrayAdapter<String>(this,android.R.layout.simple_list_item_1, animalsNameList);
                 // Set The Adapter
                 animalList.setAdapter(arrayAdapter);
                
                 // register onClickListener to handle click events on each item
                 animalList.setOnItemClickListener(new OnItemClickListener()
                    {
                             // argument position gives the index of item which is clicked
                            public void onItemClick(AdapterView<?> arg0, View v,int position, long arg3)
                            {
                               
                                    String selectedAnimal=animalsNameList.get(position);
                                    Toast.makeText(getApplicationContext(), "Animal Selected : "+selectedAnimal,   Toast.LENGTH_LONG).show();
                                 }
                    });
        }
       
        void getAnimalNames()
        {
            animalsNameList.add("DOG");
            animalsNameList.add("CAT");
            animalsNameList.add("HORSE");
            animalsNameList.add("ELEPHANT");
            animalsNameList.add("LION");
            animalsNameList.add("COW");
            animalsNameList.add("MONKEY");
            animalsNameList.add("DEER");
            animalsNameList.add("RABBIT");
            animalsNameList.add("BEER");
            animalsNameList.add("DONKEY");
            animalsNameList.add("LAMB");
            animalsNameList.add("GOAT");
           
           
        }
}


                             

How to Populate ListView with DataBase

Populating ListView with DataBase

 

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