Android学习--动态向SPinner控件中添加数据

android中的spinner动态加载内容

博客分类： Android Android OS XML

android中的spinner动态加载数据：

GroupPurchase.java

Java代码

package jftt.txlong;
import java.util.ArrayList;
import java.util.List;
import android.app.Activity;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.widget.AdapterView;
import android.widget.ArrayAdapter;
import android.widget.Button;
import android.widget.ImageView;
import android.widget.Spinner;
import android.widget.TextView;
public class GroupPurchase extends Activity {
private Spinner changeCity;
private Button refresh, pre, next;
private TextView leftTime, detail, price, citygp;
private ImageView images;
private ArrayAdapter adapter;
private List allItems;
private String[] citys = { "北京市", "上海市", "天津市", "福州市" };
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
initView();
allItems = new ArrayList();
for (int i = 0; i < citys.length; i++) {
allItems.add(citys[i]);
}
adapter = new ArrayAdapter(this,android.R.layout.simple_spinner_item, allItems);
adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
changeCity.setAdapter(adapter);
changeCity.setOnItemSelectedListener(new Spinner.OnItemSelectedListener() {
@Override
public void onItemSelected(AdapterView<?> arg0, View arg1,
int arg2, long arg3) {
citygp.setText(changeCity.getSelectedItem().toString() + "今天的团购");
Log.i("info-----------", changeCity.getSelectedItem().toString());
}
@Override
public void onNothingSelected(AdapterView<?> arg0) {
}
});
pre.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Log.i("info-----------", "prefer button has pressed!!!");
}
});
next.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Log.i("info-----------", "next button has pressed!!!");
}
});
}
private void initView() {
changeCity = (Spinner) findViewById(R.id.changeCity);
citygp = (TextView)findViewById(R.id.citygp);
refresh = (Button) findViewById(R.id.refresh);
pre = (Button) findViewById(R.id.pre);
next = (Button) findViewById(R.id.next);
leftTime = (TextView) findViewById(R.id.lefttime);
detail = (TextView) findViewById(R.id.detail);
images = (ImageView) findViewById(R.id.images);
price = (TextView) findViewById(R.id.price);
}
}

package jftt.txlong;import java.util.ArrayList;import java.util.List;import android.app.Activity;import android.os.Bundle;import android.util.Log;import android.view.View;import android.widget.AdapterView;import android.widget.ArrayAdapter;import android.widget.Button;import android.widget.ImageView;import android.widget.Spinner;import android.widget.TextView;public class GroupPurchase extends Activity {private Spinner changeCity;private Button refresh, pre, next;private TextView leftTime, detail, price, citygp;private ImageView images;private ArrayAdapter adapter;private List allItems;private String[] citys = { "北京市", "上海市", "天津市", "福州市" };@Overridepublic void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.main);initView();allItems = new ArrayList();for (int i = 0; i < citys.length; i++) {allItems.add(citys[i]);}adapter = new ArrayAdapter(this,android.R.layout.simple_spinner_item, allItems);adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);changeCity.setAdapter(adapter);changeCity.setOnItemSelectedListener(new Spinner.OnItemSelectedListener() {@Overridepublic void onItemSelected(AdapterView<?> arg0, View arg1,int arg2, long arg3) {citygp.setText(changeCity.getSelectedItem().toString() + "今天的团购");Log.i("info-----------", changeCity.getSelectedItem().toString());}@Overridepublic void onNothingSelected(AdapterView<?> arg0) {}});pre.setOnClickListener(new View.OnClickListener() {@Overridepublic void onClick(View v) {Log.i("info-----------", "prefer button has pressed!!!");}});next.setOnClickListener(new View.OnClickListener() {@Overridepublic void onClick(View v) {Log.i("info-----------", "next button has pressed!!!");}});}private void initView() {changeCity = (Spinner) findViewById(R.id.changeCity);citygp = (TextView)findViewById(R.id.citygp);refresh = (Button) findViewById(R.id.refresh);pre = (Button) findViewById(R.id.pre);next = (Button) findViewById(R.id.next);leftTime = (TextView) findViewById(R.id.lefttime);detail = (TextView) findViewById(R.id.detail);images = (ImageView) findViewById(R.id.images);price = (TextView) findViewById(R.id.price);}}

main.xml

Xml代码

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical" android:layout_width="fill_parent"
android:layout_height="fill_parent">
<RelativeLayout android:layout_width="fill_parent"
android:layout_height="wrap_content">
<Spinner android:id="@+id/changeCity"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"/>
<TextView android:text="郑州今日团购"
android:id="@+id/citygp"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_toLeftOf="@+id/refresh"/>
<Button android:text="刷新"
android:id="@+id/refresh"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentRight="true"/>
RelativeLayout>
<RelativeLayout android:layout_width="fill_parent"
android:layout_height="wrap_content">
<TextView android:text="剩余时间："
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"/>
<TextView android:id="@+id/lefttime"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentTop="true"
android:layout_centerHorizontal="true"/>
<Button android:text="订购"
android:id="@+id/order"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentRight="true"/>
RelativeLayout>
<TextView android:id="@+id/detail"
android:layout_width="fill_parent"
android:layout_height="wrap_content"/>
<LinearLayout android:layout_width="fill_parent"
android:layout_height="wrap_content">
<ImageView android:id="@+id/images"
android:layout_width="wrap_content"
android:layout_height="wrap_content"/>
<TextView android:id="@+id/price"
android:layout_width="wrap_content"
android:layout_height="wrap_content"/>
LinearLayout>
<RelativeLayout android:layout_width="fill_parent"
android:layout_height="wrap_content">
<Button android:id="@+id/pre"
android:text="上一个"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"/>
<Button android:id="@+id/next"
android:text="下一个"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentRight="true"/>
RelativeLayout>
LinearLayout>

<?xml version="1.0" encoding="utf-8"?>

android中的spinner动态加载内容

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