Android常用控制項之AutoCompleteTextView、Spinner

標籤：android   spinner   自動完善   

概述

1、AutoCompleteTextView：相對於普通的TextView，AutoCompleteTextView的特點是可以自動提示文本，它可以通過SetAdapter()方法載入適配器。
2、Spinner：一種下拉式清單。

知識內容AutoCompletedTextView

布局檔案

<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:paddingLeft="@dimen/activity_horizontal_margin"                android:paddingRight="@dimen/activity_horizontal_margin"                android:paddingTop="@dimen/activity_vertical_margin"                android:paddingBottom="@dimen/activity_vertical_margin"                tools:context=".MainActivity">    <AutoCompleteTextView        android:id="@+id/auto_complete_textview"        android:layout_width="match_parent"        android:layout_height="wrap_content"        android:textColor="#2af"/></RelativeLayout>

java部分

public class MainActivity extends Activity {    private AutoCompleteTextView mCompleteTextView;    private ArrayAdapter<String> mArrayAdapter;    private String[] mData = {"layout_linear","layout_relative","layout_absolute","text_view","button_image","button_radio"};    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.spinner_layout);        mCompleteTextView = (AutoCompleteTextView)findViewById(R.id.auto_complete_textview);        mArrayAdapter = new ArrayAdapter<String>(this,android.R.layout.test_list_item,mData);        mCompleteTextView.setAdapter(mArrayAdapter);    }}

結果示範：

Spinner

布局檔案

<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"              android:orientation="vertical"              android:layout_width="match_parent"              android:layout_height="match_parent">    <Spinner        android:id="@+id/spinner"        android:layout_width="match_parent"        android:layout_height="wrap_content">    </Spinner></LinearLayout>

java部分

public class MainActivity extends Activity {    private Spinner mSpinner;    private String[] mData = {"layout_linear","layout_relative","layout_absolute","text_view","button_image","button_radio"};    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);        mSpinner = (Spinner)findViewById(R.id.spinner);        mSpinner.setAdapter(mArrayAdapter);    }}

結果示範

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Android常用控制項之AutoCompleteTextView、Spinner