如何在Android Spinner中添加搜索选项? [英] How to add search option to Android Spinner?

问题描述

我在android微调器中显示了一长串数据.所以我想向此微调器添加搜索选项?任何人都可以用一个简单的示例代码来帮助我.(我看到了一些与此相关的答案，但还不够)..

I have a long list of data display in android spinner. So i want to add a search option to this spinner ? Can any one help me with a simple example code.. (I saw some answers regarding this but they are not sufficient)..

我是android新手，我知道实际上这不是正确的方法.但我想将这种选项添加到微调器中.当您在搜索框上点击一个字母时，微调器中会显示与该字母相关的项目列表.非常感谢.

I am new to android and i know actually this is not the correct way. but i want to add this kind of option to the spinner. When you hit a letter on the search box , list of items are displayed in the spinner relevant to that letter. Thanks a lot.

公共无效搜索(视图){

public void search(View view){

    cursor = db.rawQuery("SELECT * FROM tblRepTeritories WHERE RepCode like?", 
        new String[]{"%" + searchText.getText().toString() + "%"});


    SimpleCursorAdapter adapter1 = new SimpleCursorAdapter(
            this, 
            android.R.layout.simple_spinner_item, 
            cursor, 
            new String[] {"TeriCode"}, 
            new int[] {android.R.id.text1});

adapter1.setDropDownViewResource( android.R.layout.simple_spinner_dropdown_item );
// get reference to our spinner
Spinner s1 = (Spinner) findViewById( R.id.spinner2 );

s1.setAdapter(adapter1);


}

推荐答案

使用TextWatcher，然后在适配器上调用notifyDataSetChanged():

Use TextWatcher and then call notifyDataSetChanged() on your adapter:

searchText.addTextChangedListener(new TextWatcher() {

    @Override
    public void onTextChanged(CharSequence s, int start, int before, int count) {

    }

    @Override
    public void beforeTextChanged(CharSequence s, int start, int count, int after) {

    }

    @Override
    public void afterTextChanged(Editable s) {
        cursor = db.rawQuery("SELECT * FROM tblRepTeritories WHERE RepCode like?", 
            new String[] {"%" + searchText.getText().toString() + "%"});
        adapter1.notifyDataSetChanged();

    }
});

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