在我的联系人列表应用程序中,我尝试在搜索联系人时使用autocompletetextview但是无法正常工作
这是我的Search.java:
public class Search extends ListActivity {
private static int[] TO = {R.id.name };
private static String[] FROM = {DbConstants.NAME, DbConstants.PHONE, DbConstants.EMAIL,_ID};
private Button sButton;
private ListView lv1;
private static SQLiteDatabase db;
private DbCreate contacts;
private Cursor cursor;
private AutoCompleteTextView searchText;
protected SimpleCursorAdapter adapter;
protected void onCreate(Bundle savedInstanceState){
super.onCreate(savedInstanceState);
setContentView(R.layout.search);
ArrayAdapter<String> adapter=new ArrayAdapter<String>(this,android.R.layout.simple_dropdown_item_1line,new String[] {DbConstants.NAME});
searchText=(AutoCompleteTextView)findViewById(R.id.searchtext);
searchText.setAdapter(adapter);
sButton=(Button)findViewById(R.id.searchButton);
sButton.setOnClickListener(new OnClickListener() {
public void onClick(View v) {
// TODO Auto-generated method stub
showDatabaseContent();
lv1 = getListView();
lv1.setTextFilterEnabled(true);
}
});
}
这是我的search.xml:
<?xml version="1.0" encoding="utf-8" ?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:orientation="vertical" android:layout_width="fill_parent" android:layout_height="fill_parent">
<LinearLayout
android:orientation="horizontal"
android:layout_width="fill_parent"
android:layout_height="wrap_content">
<AutoCompleteTextView
android:id="@+id/searchtext"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="1"
android:hint="@string/searchDefault">
<requestFocus />
</AutoCompleteTextView>
<Button android:id="@+id/searchButton"
android:icon="@drawable/search"
android:text="Search"
android:layout_width="wrap_content"
android:layout_height="wrap_content" />
</LinearLayout>
<TextView
android:id="@android:id/empty"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/empt" />
<ListView
android:id="@android:id/list"
android:layout_width="fill_parent"
android:layout_height="wrap_content" />
</LinearL ayout>
我没有得到任何错误但是当我按下搜索按钮时搜索有效。但是当我开始输入名称时没有任何反应。问题出在哪里?
答案 0 :(得分:3)
在 AutoCompleteTextView
下的XML文件中添加以下行android:completionThreshold="1"
它可能会起作用,试试吧。
答案 1 :(得分:2)
AutoComplete TextView
@Override
public void afterTextChanged(Editable arg0) {
// TODO Auto-generated method stub
}
@Override
public void beforeTextChanged(CharSequence s, int start, int count,
int after) {
// TODO Auto-generated method stub
}
@Override
public void onTextChanged(CharSequence s, int start, int before, int count) {
// TODO Auto-generated method stub
}
}
请参阅此基本Example