gridviewactivity.java

android开发入门与实践源代码

package com.eoemobile.book.ex_widgetdemo;
 
import android.app.Activity;
import android.content.Context;
import android.os.Bundle;
import android.view.View;
import android.view.ViewGroup;
import android.view.Window;
 
import android.widget.BaseAdapter;
 
 
import android.widget.GridView;
 
import android.widget.ImageView;
 

public class GridViewActivity  extends Activity  {
 

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.grid_view);
        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) {  // if it's not recycled, initialize some attributes
                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;
        }

        // references to our images
        private Integer[] mThumbIds = {
                R.drawable.grid_view_01, R.drawable.grid_view_02,
                R.drawable.grid_view_03, R.drawable.grid_view_04,
                R.drawable.grid_view_05, R.drawable.grid_view_06,
                R.drawable.grid_view_07, R.drawable.grid_view_08,
                R.drawable.grid_view_09, R.drawable.grid_view_10,
                R.drawable.grid_view_11, R.drawable.grid_view_12,
                R.drawable.grid_view_13, R.drawable.grid_view_14,
                R.drawable.grid_view_15, R.drawable.sample_1,
                R.drawable.sample_2, R.drawable.sample_3,
                R.drawable.sample_4, R.drawable.sample_5,
                R.drawable.sample_6, R.drawable.sample_7
        };
    }
 

 
}