extends BaseAdapter to create Image adapter : Image « 2D Graphics « Android

1. Android
2. 2D Graphics
3. Image

extends BaseAdapter to create Image adapter

   
package app.test;

import android.app.Activity;
import android.content.Context;
import android.os.Bundle;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.GridView;
import android.widget.ImageView;

public class Test extends Activity {

  @Override
  public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.main);
    setTitle("GridViewActivity");
    GridView gridview = (GridView) findViewById(R.id.grid_view);
    gridview.setAdapter(new ImageAdapter(this));
  }

  public class ImageAdapter extends BaseAdapter {
    private Context mContext;

    public ImageAdapter(Context c) {
      mContext = c;
    }

    public int getCount() {
      return mThumbIds.length;
    }

    public Object getItem(int position) {
      return null;
    }

    public long getItemId(int position) {
      return 0;
    }

    public View getView(int position, View convertView, ViewGroup parent) {
      ImageView imageView;
      if (convertView == null) {
        imageView = new ImageView(mContext);
        imageView.setLayoutParams(new GridView.LayoutParams(85, 85));
        imageView.setScaleType(ImageView.ScaleType.CENTER_CROP);
        imageView.setPadding(8, 8, 8, 8);
      } else {
        imageView = (ImageView) convertView;
      }

      imageView.setImageResource(mThumbIds[position]);
      return imageView;
    }

    private Integer[] mThumbIds = { R.drawable.icon, R.drawable.icon, };
  }
}

//main.xml

<?xml version="1.0" encoding="utf-8"?>
 
       
<GridView xmlns:android="http://schemas.android.com/apk/res/android" 
    android:id="@+id/grid_view"
    android:layout_width="fill_parent" 
    android:layout_height="fill_parent"
    android:numColumns="auto_fit"
    android:verticalSpacing="10dp"
    android:horizontalSpacing="10dp"
    android:columnWidth="90dp"
    android:stretchMode="columnWidth"
    android:gravity="center"
/> 
 

   
    
    
  

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