實作AutoCompleteTextView

實作AutoCompleteTextView

1.XML文件

1. <?xml version="1.0" encoding="utf-8"?>
2. <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
3.     android:orientation="vertical"
4.     android:layout_width="fill_parent"
5.     android:layout_height="fill_parent"
6.     >
7. <TextView  
8.     android:layout_width="fill_parent" 
9.     android:layout_height="wrap_content" 
10.     android:text="@string/hello"
11.     />
12. <AutoCompleteTextView 
13. android:id="@+id/autoCompleteTextView1" 
14. android:text="" 
15. android:layout_width="fill_parent" 
16. android:layout_height="wrap_content">
17.     <requestFocus></requestFocus>
18. </AutoCompleteTextView>
19. </LinearLayout>

2.java文件

1. package test.AutoCompleteTextView;
2. 
   
3. import android.app.Activity;
4. import android.os.Bundle;
5. import android.widget.ArrayAdapter;
6. import android.widget.AutoCompleteTextView;
7. 
   
8. public class HelloAutoCompleteTextViewActivity extends Activity {
9.     /** Called when the activity is first created. */
10. //宣告一個AutoCompleteTextView物件為actv
11. //實現ArrayAdapter產生str字串陣列的適配器
12. //setAdapter()將適配器設定給actv
13. private AutoCompleteTextView actv;
14.     @Override
15.     public void onCreate(Bundle savedInstanceState) {
16.         super.onCreate(savedInstanceState);
17.         setContentView(R.layout.main);
18.         
19.         actv = (AutoCompleteTextView)findViewById(R.id.autoCompleteTextView1);
20.         String[] str = {"abc" , "abcd" , "bcd" , "bcde"};
21.         
22.        ArrayAdapter adapter = new ArrayAdapter(this , android.R.layout.simple_dropdown_item_1line , str);
23.        actv.setAdapter(adapter);
24.     }
25. }