Android之Gallery使用例子

刚刚学习android，用gallery作了一个小demo，用来记录一下。

package com.example.galleryex02;

import android.app.activity;
import android.content.context;
import android.os.bundle;
import android.view.motionevent;
import android.view.view;
import android.view.viewgroup;
import android.widget.baseadapter;
import android.widget.gallery;
import android.widget.imageview;

public class mainactivity extends activity {

  @override
  public void oncreate(bundle savedinstancestate) {
    super.oncreate(savedinstancestate);
    setcontentview(r.layout.main);
    settitle("电影海报");

    gallery gallery = (gallery) findviewbyid(r.id.gallery1);

    mygalleryadapter galadapter = new mygalleryadapter(this);
    gallery.setadapter(galadapter);
  }

  public class mygalleryadapter extends baseadapter { 
    context context;
    integer[] posterid = { r.drawable.mov11, r.drawable.mov12,
        r.drawable.mov13, r.drawable.mov14, r.drawable.mov15,
        r.drawable.mov16, r.drawable.mov17, r.drawable.mov18,
        r.drawable.mov19, r.drawable.mov20 };

    public mygalleryadapter(context c) {
      context = c;
    }

    public int getcount() {
      // todo auto-generated method stub
      return posterid.length;
    }

    public object getitem(int arg0) {
      // todo auto-generated method stub
      return null;
    }

    public long getitemid(int position) {
      // todo auto-generated method stub
      return 0;
    }

    public view getview(int position, view convertview, viewgroup parent) {
      imageview imageview = new imageview(context);
      imageview.setlayoutparams(new gallery.layoutparams(100, 150)); 
      //设置image大小

      imageview.setscaletype(imageview.scaletype.fit_center); 
      imageview.setpadding(5, 5, 5, 5);
      imageview.setimageresource(posterid[position]);

      final int pos = position;

      //点击galley的image的时候
      imageview.setontouchlistener(new view.ontouchlistener() {

        public boolean ontouch(view v, motionevent event) {

          imageview ivposter = (imageview) findviewbyid(r.id.ivposter);
          ivposter.setscaletype(imageview.scaletype.fit_center);
          ivposter.setimageresource(posterid[pos]);

          return false;
        }
      });

      return imageview;
    }
  }
}

效果如下：

以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持。