如何使用SimpleAdapter.ViewBinder？

Question

我有一个复杂布局的列表R.layout.menu_row.它由一个ProgressBar和一个文本字段组成.我使用的适配器:

   SimpleAdapter simpleAdapter = new SimpleAdapter(this, getData(path),
            R.layout.menu_row, new String[] { "title", "progress" },
            new int[] { R.id.text1,R.id.progressBar1});

适配器知道如何自己处理TextViews但不是ProgressBars,所以我编写了一个复杂的数据绑定器:

    SimpleAdapter.ViewBinder viewBinder = new SimpleAdapter.ViewBinder() {
        @Override
        public boolean setViewValue(View view, Object data, String textRepresentation) {
            //here goes the code
            if () {
                return true;
            }
            return false;
        }

现在我被困在函数内填充映射.我需要将string的值设置progress为setProgress方法ProgressBar.但我没有得到字符串progress和句子的句柄ProgressBar.

Answer 1

您需要确定是否ViewBinder调用了它ProgressBar并设置其进度(从data参数(progress您的案例中的列数据)):

SimpleAdapter.ViewBinder viewBinder = new SimpleAdapter.ViewBinder() {
        @Override
        public boolean setViewValue(View view, Object data, String textRepresentation) {
            if (view.getId() == R.id.progressBar1) {
                // we are dealing with the ProgressBar so set the progress and return true(to let the adapter know you binded the data)
                // set the progress(the data parameter, I don't know what you actually store in the progress column(integer, string etc)).                             
                return true;
            }
            return false; // we are dealing with the TextView so return false and let the adapter bind the data
}

编辑: 我在你的addItem方法中看到你这样做:

temp.put("progress", name);// Why do you set again the name as progress?!?

我想你应该在这里设置的是progress参数:

temp.put("progress", progress);

然后在ViewBinder:

if (view.getId() == R.id.progressBar1) {
   Integer theProgress = (Integer) data;
   ((ProgressBar)view).setProgress(theProgress); 
   return true;
}