Eclipse 开发 Android, Hello Spinner（ 学习10 ）

Eclipse 开发 Android, Hello Spinner（ 学习10 ）

关键字: hellospinner

HelloSpinner.java 源码

package
 com.example.test;

import
 android.app.Activity;
import
 android.os.Bundle;
import
 android.widget.ArrayAdapter;
import
 android.widget.Spinner;

public
 
class
 HelloSpinner 
extends
 Activity {
    @Override
    public
 
void
 onCreate(Bundle savedInstanceState) {
        super
.onCreate(savedInstanceState);
        setContentView(R.layout.main);

        Spinner s = (Spinner) findViewById(R.id.spinner);
        ArrayAdapter adapter = ArrayAdapter.createFromResource(
                this
, R.array.planets, android.R.layout.simple_spinner_item);
        adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
        s.setAdapter(adapter);
    }

}

package com.example.test;

import android.app.Activity;
import android.os.Bundle;
import android.widget.ArrayAdapter;
import android.widget.Spinner;

public class HelloSpinner extends Activity {
	@Override
	public void onCreate(Bundle savedInstanceState) {
	    super.onCreate(savedInstanceState);
	    setContentView(R.layout.main);

	    Spinner s = (Spinner) findViewById(R.id.spinner);
	    ArrayAdapter adapter = ArrayAdapter.createFromResource(
	            this, R.array.planets, android.R.layout.simple_spinner_item);
	    adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
	    s.setAdapter(adapter);
	}

}

 layout->main.xml

<?
xml
 
version
=
"1.0"
 
encoding
=
"utf-8"
?>
<
LinearLayout
 
xmlns:android
=
"http://schemas.android.com/apk/res/android"
    android:orientation
=
"vertical"
    android:padding
=
"10dip"
    android:layout_width
=
"fill_parent"
    android:layout_height
=
"wrap_content"
>

    <
TextView
        android:layout_width
=
"fill_parent"
        android:layout_height
=
"wrap_content"
        android:layout_marginTop
=
"10dip"
        android:text
=
"Please select a planet:"
    />

    <
Spinner
        android:id
=
"@+id/spinner"
        android:layout_width
=
"fill_parent"
        android:layout_height
=
"wrap_content"
        android:drawSelectorOnTop
=
"true"
        android:prompt
=
"@string/planet_prompt"
    />

</
LinearLayout
>

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical"
    android:padding="10dip"
    android:layout_width="fill_parent"
    android:layout_height="wrap_content">

    <TextView
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:layout_marginTop="10dip"
        android:text="Please select a planet:"
    />

    <Spinner 
        android:id="@+id/spinner"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:drawSelectorOnTop="true"
        android:prompt="@string/planet_prompt"
    />

</LinearLayout>

 values->arrays.xml

<
resources
>

    <
string-array
 
name
=
"planets"
>
        <
item
>
Mercury
</
item
>
        <
item
>
Venus
</
item
>
        <
item
>
Earth
</
item
>
        <
item
>
Mars
</
item
>
        <
item
>
Jupiter
</
item
>
        <
item
>
Saturn
</
item
>
        <
item
>
Uranus
</
item
>
        <
item
>
Neptune
</
item
>
    </
string-array
>

</
resources
>

<resources>

    <string-array name="planets">
        <item>Mercury</item>
        <item>Venus</item>
        <item>Earth</item>
        <item>Mars</item>
        <item>Jupiter</item>
        <item>Saturn</item>
        <item>Uranus</item>
        <item>Neptune</item>
    </string-array>
    
</resources>

 value->strings.xml

 

<?
xml
 
version
=
"1.0"
 
encoding
=
"utf-8"
?>
<
resources
>
    <
string
 
name
=
"hello"
>
Hello World, HelloSpinner!
</
string
>
    <
string
 
name
=
"app_name"
>
HelloSpinner
</
string
>
    <
string
 
name
=
"planet_prompt"
>
Choose a planet
</
string
>
</
resources
>

<?xml version="1.0" encoding="utf-8"?>
<resources>
    <string name="hello">Hello World, HelloSpinner!</string>
    <string name="app_name">HelloSpinner</string>
	<string name="planet_prompt">Choose a planet</string>
</resources>

 

run it

 

 

 

 

<string-array name="province">
        <item value=“1”>湖南</item>
        <item value="2">广州</item>
        <item value="3">上海</item>
</string-array>