Android控件之-Gallery

Android拖动图片：

package com.ko8e;

import android.content.Context;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.Gallery;
import android.widget.ImageView;

public class ImageAdapter extends BaseAdapter{

	private Context context = null;
	private int[] nImages = {
			R.drawable.img1,
			R.drawable.img2,
			R.drawable.img3,
			R.drawable.img4,
			R.drawable.img5,
			R.drawable.img6,
			R.drawable.img7,
			R.drawable.img8,
	};
	public ImageAdapter(Context c)  {
		context = c;
	}
	//获取图片的个数
	public int getCount() {
		int i = nImages.length;
		return i;
	}

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

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

	public View getView(int position, View convertView, ViewGroup parent) {
		
		ImageView imageView = new ImageView(context);
		//给imageView设置资源
		imageView.setImageResource(nImages[position]);
		//设置布局图片的显示比例
		imageView.setLayoutParams(new Gallery.LayoutParams(120, 120));
		//设置显示比例的类型
		imageView.setScaleType(ImageView.ScaleType.FIT_CENTER);
		return imageView;
	}
}

Activity类：

package com.ko8e;

import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.widget.AdapterView;
import android.widget.Gallery;
import android.widget.Toast;
import android.widget.AdapterView.OnItemClickListener;

public class MyActivity extends Activity {
    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        
        Gallery g = (Gallery) findViewById(R.id.Gallery);
        g.setAdapter(new ImageAdapter(this));
        g.setBackgroundResource(R.drawable.bg0);
        //設置Gallery時間的監聽
        g.setOnItemClickListener(new OnItemClickListener() {
			public void onItemClick(AdapterView<?> arg0, View arg1, int position,
					long arg3) {
				Toast.makeText(MyActivity.this, "你选择了"+(position + 1)+ " 号图片", Toast.LENGTH_SHORT).show();
			}
        });       
    }
}

具体图片就不弄上来了。