问题描述

自动完成文本框添加监听器

我想实现的功能是当选择自动完成文本框的某一项时，添加的监听器就会有反应。用如下代码没有实现，请高人指点问题出现在哪里。程序中的PhoneName是自动完成文本框的名称。

PhoneName.setOnItemSelectedListener(new OnItemSelectedListener() {            public void onItemSelected(AdapterView<?> arg0 View arg1                    int arg2 long arg3) {                Toast.makeText(check.this selected"" Toast.LENGTH_LONG).show();            }            public void onNothingSelected(AdapterView<?> arg0) {            }        }

解决方案

我之前用这段代码实现了这个功能：

 phoneName.setOnItemClickListener(new OnItemClickListener() {            @Override            public void onItemClick(AdapterView<?> parent View arg1 int pos                    long id) {                  Toast.makeText(check.this selected"" Toast.LENGTH_LONG).show();            }        }

解决方案二：

public class ActivityautoCompleteTextView extends Activity implements TextWatcher {private the TextView selection;private AutoCompleteTextView the edit;private String [] items = {""lorem""ipsum""dolor""sit""amet""consectetuer""adipiscing""elit""morbi"" purus ""};@ Overrideprotected void onCreate (Bundle savedInstanceState) {super.onCreate (savedInstanceState);setContentView (R.layout.ActivityautoCompleteTextView);selection = (TextView) findViewById (R.id.selection6);edit = (AutoCompleteTextView) findViewById (R.id. editAuto);edit. setAdapter (new ArrayAdapter <String> (this android.R.layout.simple_dropdown_item_1line items));edit. addTextChangedListener (this);}public void afterTextChanged (Editable s) {}public void beforeTextChanged (CharSequence s int start int count int after) {}public void onTextChanged (CharSequence s int start int before int count) {selection.setText (edit.getText ());}}

解决方案三：
使用OnItemClickListener，而不是OnItemSelectedListener应该是有作用的。