机器人如何让选择的项目从数据驱动微调 [英] Android how to get selected item from data driven spinner

问题描述

新手问题。我使用的是SimleCursorAdapter来填充，从一个SQLite表中的微调，如在Android开发文档：

Newbie question. I'm using a SimleCursorAdapter to populate a spinner from an SQLite table, as shown in the Android dev docs:

Spinner list=(Spinner)findViewById(R.id.cboModel);        
SimpleCursorAdapter ModelAdapter = new SimpleCursorAdapter(this,
   android.R.layout.simple_spinner_item, model,
   new String[] {"Drug"},       
   new int[] {android.R.id.text1});
ModelAdapter.setDropDownViewResource(
        android.R.layout.simple_spinner_dropdown_item);
list.setAdapter(ModelAdapter);
list.setOnItemSelectedListener(onModelSelect);

我已经建立了一个侦听器，但我无法弄清楚如何获得所选项目的文本，它拉起来SQLiteCursor，而不是在微调的实际文本。

I've set up a listener, but I can't figure out how to get the selected item text, it pulls up the SQLiteCursor, not the actual text in the spinner.

private AdapterView.OnItemSelectedListener 
    onModelSelect= new AdapterView.OnItemSelectedListener() {
        public void onItemSelected(AdapterView<?> 
            parent, View view, int position, long id) {
            ModelName = parent.getSelectedItem().toString(); 
            android.util.Log.w("OnItemSelect.cboModel", ModelName);     
        }
        public void onNothingSelected(AdapterView<?> arg0) {
            // TODO Auto-generated method stub          
        }       
};

谷歌轮番上涨的问题在几个留言板，但没有答案，所以这似乎是一个常见的​​新手问题。这可能是非常明显一些，但如果你可以点我在正确的方向我想AP preciate它。谢谢你。

Google turns up the question on several message boards, but no answers, so it appears to be a common newbie question. It may be painfully obvious to some, but if you could point me in the right direction I would appreciate it. Thank you.

推荐答案

由于所选择的项目是一个光标，你可以很容易地通过调用的getString与列在你用来填充原始数据库的查询索引获得的价值的微调。

Since the selected item is a Cursor, you can easily get the value by calling getString with the index of the column in the original database query that you used to populate the Spinner.

String spinnerString = null;
Cursor cc = (Cursor)(yourSpinner.getSelectedItem());
if (cc != null) {
    spinnerString = cc.getString(
        cc.getColumnIndex("Drug"));
}

在微调从数据库填充这个技术肯定能行。我还没有尝试过与资源阵列。

This technique definitely works when the Spinner is populated from the database. I have not tried it with a resource array.

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