Tuesday, May 28, 2013

Customised ListView With Images

Custom ListView with images contains Custom Adapter that i have explained it in below examples:----
1:- CustomListView.java


package com.example.demo;

import java.util.ArrayList;

import android.app.Activity;
import android.app.ListActivity;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ArrayAdapter;
import android.widget.CheckBox;
import android.widget.ImageView;
import android.widget.TextView;
import android.widget.Toast;

public class CustomListView extends ListActivity {

ArrayList<String> listItems=new ArrayList<String>();

   //DEFINING STRING ADAPTER WHICH WILL HANDLE DATA OF LISTVIEW
//    ArrayAdapter<String> adapter;
MyPerformanceArrayAdapter adapter;
   //RECORDING HOW MUCH TIMES BUTTON WAS CLICKED
   int clickCounter=0;

   @Override
   public void onCreate(Bundle icicle) {
       super.onCreate(icicle);
       setContentView(R.layout.main);
        adapter=new MyPerformanceArrayAdapter(this,listItems);
       setListAdapter(adapter);
   }

   //METHOD WHICH WILL HANDLE DYNAMIC INSERTION
   public void addItems(View v) {
       listItems.add("Clicked : "+clickCounter++);
//    adapter.add(listItems.get(0));
   adapter.notifyDataSetChanged();
   }

   public class MyPerformanceArrayAdapter extends ArrayAdapter<String> {
     private final Activity context;
     private final ArrayList<String> names;

     
     public MyPerformanceArrayAdapter(Activity context, ArrayList<String> listItems) {
       super(context, R.layout.list_layout, listItems);
       this.context = context;
       this.names = listItems;
     }

     @Override
     public View getView(int position, View convertView, ViewGroup parent) {
       View rowView = convertView;
       if (rowView == null) {
         LayoutInflater inflater = context.getLayoutInflater();
         rowView = inflater.inflate(R.layout.list_layout, null);
         ViewHolder viewHolder = new ViewHolder();
         viewHolder.text = (TextView) rowView.findViewById(R.id.textview);
         viewHolder.image = (CheckBox) rowView
             .findViewById(R.id.checkbox);
         rowView.setTag(viewHolder);
       }

       ViewHolder holder = (ViewHolder) rowView.getTag();
       String s = names.get(position);
       holder.text.setText(s);
      
       return rowView;
     }
   
    class ViewHolder {
       public TextView text;
       public CheckBox image;
     }

}
------------------------------------------------------------------------------------------------------------
2:- main.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent" >
    <Button
        android:id="@+id/addBtn"
        android:text="Add New Item"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:onClick="addItems"/>
    <ListView
        android:id="@android:id/list"
        android:layout_width="fill_parent"
        android:layout_height="fill_parent"
        android:drawSelectorOnTop="false"
    />
</LinearLayout>

----------------------------------------------------------------------------------------------------------

3:-  list_layout.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="horizontal" >
    
    <CheckBox 
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:id="@+id/checkbox"/>
        <TextView 
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="hello"
            android:id="@+id/textview"/>
            

</LinearLayout>

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