android控件開發之AutoCompleteTextView
此控件主要是用在當客戶需要輸入某些内容時,會提示補全資訊供使用者選擇,用以減少客戶的輸入操作 此控件中的選擇資料,可以是自定義的String數組資料,也可以是list清單資料 JAVA代碼:
package com.example.autocompletetext;
import java.util.ArrayList;
import android.os.Bundle;
import android.app.Activity;
import android.view.Menu;
import android.widget.ArrayAdapter;
import android.widget.AutoCompleteTextView;
public class MainActivity extends Activity {
private AutoCompleteTextView autoCompleteTextView = null;
//String數組主要是用來适配AutoCompleteTextView對象中客戶輸入的字元
private String[] CONTRY = new String[]{
"shanghai","beijing","guangzhou","shenzhen","nantong","anqing","anhui",
"hefei","huainan","dongguan","chuzhou","wuxi","suzhou","nanjing","kunshan","henan","lanfang",
"liuan","huaibei","fuyang","bozhou","suzhou","wuhu"
};
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
autoCompleteTextView = (AutoCompleteTextView)findViewById(R.id.autoComplete);
//建立一個ArrayList對象,并且給list對象動态添加資料。此list是給ArrayAdapter對象提供資料
ArrayList<String> list = new ArrayList<String>();
list.add("testtest");
list.add("tetsssss");
//設定Adapter擴充卡,可以使用list中的資料,也可以使用String數組資料
ArrayAdapter<String> adapter = new ArrayAdapter<String>(this, R.layout.list_item, CONTRY);
//給AutoCompleteTextView對象設定擴充卡
autoCompleteTextView.setAdapter(adapter);
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.main, menu);
return true;
}
}
主界面main.xml代碼如下: <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:paddingBottom="@dimen/activity_vertical_margin"
android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin"
tools:context=".MainActivity" >
<TextView
android:id="@+id/myText"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/hello_world" />
<AutoCompleteTextView
android:id="@+id/autoComplete"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_below="@id/myText"/>
</RelativeLayout>
list_itm.xml代碼如下: 此布局檔案主要是用來布置彈出的選擇清單的布局
<?xml version="1.0" encoding="utf-8"?>
<TextView xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:padding="10dp"
android:textSize="20sp"
>
</TextView>
效果如下:
注意:AutoCompleteTextView需要輸入至少兩個的字元才能出現供選擇的清單