Question

我有一个复杂布局R.layout.menu_row的列表。它由ProgressBar和文本字段组成。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而不是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。我需要将字符串progress的值设置为setProgress的{{1}}方法。但我无法处理字符串ProgressBar和progress。

Answer 1

您需要了解是否为ViewBinder调用ProgressBar并设置其进度（来自data参数（来自您progress列的数据）））：

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： 我已经在你的addItem方法中看到过：

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

我认为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;
}

如何使用SimpleAdapter.ViewBinder？

1 个答案: