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  • android在listview中放入从sdcard读取的bitmap

    重写viewbinder

    public class viewbinder_bookmark implements SimpleAdapter.ViewBinder{
        @Override
        public boolean setViewValue(View view, Object data, String textRepresentation){
            if(view instanceof ImageView && data instanceof Bitmap){
                ImageView imageview=(ImageView)view;
                Bitmap bitmap=(Bitmap)data;
                imageview.setImageBitmap(bitmap);
                return true;
            }
            return false;
        }
    }

    再给simpleadapter设置viewbinder

    List<Map<String,Object>> arraylist_bookmark=new ArrayList<Map<String,Object>>();
            Map<String,Object> item_bookmark=new HashMap<String,Object>();
            item_bookmark.put("bookmark_title","百度一下");
            item_bookmark.put("bookmark_favicon",bitmap);
            arraylist_bookmark.add(item_bookmark);
            SimpleAdapter simpleAdapter=new SimpleAdapter(MainActivity.this ,arraylist_bookmark,R.layout.layout_bookmark_item,new String[]{"bookmark_title","bookmark_favicon"},new int[]{R.id.bookmark_title,R.id.bookmark_favicon});
            simpleAdapter.setViewBinder(new viewbinder_bookmark());
            listview_bookmark=(ListView)findViewById(R.id.listview_bookmark);
            listview_bookmark.setAdapter(simpleAdapter);
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  • 原文地址:https://www.cnblogs.com/zqxLonely/p/5461945.html
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