四十、【GridView】-白红宇

一、布局文件

设置多少列：numColumns 设置分隔：horizontalSpacing verticalSpacing


        
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二、SimpleAdapter

两个全局的数组

private int[] icons = new int[] {            R.drawable.indicator_corner_bg,R.drawable.indicator_corner_bg,            R.drawable.indicator_corner_bg,R.drawable.indicator_corner_bg,            R.drawable.indicator_corner_bg, R.drawable.indicator_corner_bg,            R.drawable.indicator_corner_bg,R.drawable.indicator_corner_bg,            R.drawable.indicator_corner_bg    };    private String[] names = new String[] {            "测试一","测试二",            "测试一","测试二",            "测试一","测试二",            "测试一","测试二",            "测试一","测试二",    };复制代码

private List
     
      > initGridViewData() {        List
      
       
        > listItems = new ArrayList<>();        for (int i = 0; i < icons.length; i++) {            // 如果要加载网络图片 icons[i] 替换成 BitmapHelper.getBitmap("http://192.168.1.119:8080/strutsproj/upload/type1.jpg")            Map
        
          listItem = new HashMap<>();            listItem.put("icon",icons[i]);            listItem.put("name",names[i]);            listItems.add(listItem);        }        return  listItems;    }    private  void  initGridView() {        SimpleAdapter mSimpleAdapter = new SimpleAdapter(                this,                initGridViewData(),                R.layout.gridview_item_layout,                new String[]{
   "icon","name"},                new int[]{R.id.iv_image, R.id.tv_itemname}        );        // 如果是加载网络图片，这个方法要写        mSimpleAdapter.setViewBinder(new SimpleAdapter.ViewBinder() {            @Override            public boolean setViewValue(View view, Object data,                                        String textRepresentation) {                //判断是否为我们要处理的对象                if(view instanceof ImageView && data instanceof Bitmap){                    ImageView iv = (ImageView) view;                    iv.setImageBitmap((Bitmap) data);                    return true;                }else                    return false;            }        });        mGridView.setAdapter(mSimpleAdapter);        // 点击        mGridView.setOnItemClickListener(new AdapterView.OnItemClickListener() {            @Override            public void onItemClick(AdapterView
          adapterView, View view, int i, long l) {                       }        });    }复制代码