android用户界面-组件Widget-网格视图GridView
GridView按照行列的方式来显示内容。一般适合显示图标。图片等内容，主要用于设置Adapter。 通过基础类BaseAdapter类，重写getView()方法来设置图片显示格式。 /Chapter04_UI_GridView01/src/com/amaker/test/MainActivity.java 代码 packagecom.amaker.test; importandroid.app.Activity; importandroid.content.Context; importandroid.os.Bundle; importandroid.view.View; importandroid.view.ViewGroup; importandroid.widget.BaseAdapter; importandroid.widget.GridView; importandroid.widget.ImageView; publicclassMainActivityextendsActivity{ privateGridViewgv; @Override publicvoidonCreate(BundlesavedInstanceState){ super.onCreate(savedInstanceState); setContentView(R.layout.main); gv=(GridView)findViewById(R.id.GridView01); gv.setNumColumns(4); //gv.setNumColumns(3); //String[]strs={"a","a1","a2","b","b1","b2","c","c1","c2"}; //ArrayAdapter<String>adapter=newArrayAdapter<String>(this,android.R.layout.simple_gallery_item,strs); gv.setAdapter(newMyAdapter(this)); } classMyAdapterextendsBaseAdapter{ privateInteger[]imgs={ R.drawable.gallery_photo_1, R.drawable.gallery_photo_2, R.drawable.gallery_photo_3, R.drawable.gallery_photo_4, R.drawable.gallery_photo_5, R.drawable.gallery_photo_6, R.drawable.gallery_photo_7, R.drawable.gallery_photo_8, R.drawable.gallery_photo_1, R.drawable.gallery_photo_2, R.drawable.gallery_photo_3, R.drawable.gallery_photo_4, R.drawable.gallery_photo_5, R.drawable.gallery_photo_6, R.drawable.gallery_photo_7, R.drawable.gallery_photo_8 }; Contextcontext; MyAdapter(Contextcontext){ this.context=context; } publicintgetCount(){ returnimgs.length; } publicObjectgetItem(intitem){ returnitem; } publiclonggetItemId(intid){ returnid; } publicViewgetView(intposition,ViewconvertView,ViewGroupparent){ ImageViewimageView; if(convertView==null){ imageView=newImageView(context); imageView.setLayoutParams(newGridView.LayoutParams(45,45)); imageView.setAdjustViewBounds(false); imageView.setScaleType(ImageView.ScaleType.CENTER_CROP); imageView.setPadding(8,8,8,8); }else{ imageView=(ImageView)convertView; } imageView.setImageResource(imgs[position]); returnimageView; } } } 本文转自linzheng 51CTO博客，原文链接:http://blog.51cto.com/linzheng/1080690
