Eclipse Development Android, Hello Spinner (learning 10)

Jul 5 posted in Mobile (RSS), comments.

Eclipse Development Android, Hello Spinner (learning 10)

Keywords: hellospinner

HelloSpinner.java Source

Java code

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 Code

<? 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

Xml Code

<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 Code

<? 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"> Hunan </ item>
<item value="2"> Guangzhou </ item>
<item value="3"> Shanghai </ item>
</ String-array>