***GridView的基本使用
*定义： GridView是一个表格显示资源的控件，可以在两个可滚动的方向上显示资源
*基本属性： android:numColumns="auto_fit" ：表示GridView中一行中展示item的列数，auto_fit表示根据手机屏幕的宽度由系统设置比较理想的列数，当然这里也可以指定具体列数 android:columnWidth="80dp" :设置每一列的宽度 android:horizontalSpacing="10dp" : 表示设置列之间的间距 android:verticalSpacing="10dp" :表示设置行之间的间距
*基本使用：和ListView的使用类似
xml布局中：
<ImageView android:id="@+id/imageView1" android:layout_width="wrap_content" android:layout_height="wrap_content" android:src="@drawable/timg1" /> <TextView android:id="@+id/textView1" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="TextView" />Java代码中：
public class ResultActivity extends Activity { private GridView gv; private List<Map<String, Object>> list; private int[] images = {R.drawable.timg1,R.drawable.timg2,R.drawable.timg3,R.drawable.timg4,R.drawable.timg5,R.drawable.timg6}; //要注意几张图片的大小相同 @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_result); gv = (GridView) findViewById(R.id.gv); list = new ArrayList<Map<String,Object>>(); for (int i = 0; i < images.length; i++) { Map<String, Object> map = new HashMap<String, Object>(); map.put("img", images[i]); map.put("text", "头像-"+i); list.add(map); } MyBaseAdapter adapter = new MyBaseAdapter(); gv.setAdapter(adapter); } class MyBaseAdapter extends BaseAdapter{ @Override public int getCount() { return list.size(); } @Override public Object getItem(int position) { return list.get(position); } @Override public long getItemId(int position) { return position; } @Override public View getView(int position, View convertView, ViewGroup parent) { ViewHolder holder = null; if(convertView == null){ LayoutInflater inflater = (LayoutInflater) getSystemService(Context.LAYOUT_INFLATER_SERVICE); convertView = inflater.inflate(R.layout.grid_item, null); holder = new ViewHolder(); holder.iv = (ImageView) convertView.findViewById(R.id.imageView1); holder.tv = (TextView) convertView.findViewById(R.id.textView1); convertView.setTag(holder); }else{ holder = (ViewHolder) convertView.getTag(); } holder.iv.setImageResource((Integer) list.get(position).get("img")); holder.tv.setText((CharSequence) list.get(position).get("text")); return convertView; } } static class ViewHolder{ ImageView iv; TextView tv; } }转载于:https://www.cnblogs.com/SanguineBoy/p/9777480.html
