DemoSpinner有關多個Spinner的例子,網上找的都不是 想要的,可以網路獲取資料新增的Spinner
直接上程式碼:
xml佈局:
<RelativeLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:paddingBottom="@dimen/activity_vertical_margin"
android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin"
>
<LinearLayout
android:layout_width="fill_parent"
android:layout_height="match_parent"
android:orientation="vertical" >
<EditText
android:id="@+id/text"
android:layout_width="fill_parent"
android:layout_height="40dp"
/>
<Spinner
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:id="@+id/spinner"/>
<EditText
android:id="@+id/textt1"
android:layout_width="fill_parent"
android:layout_height="40dp"
/>
<Spinner
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:id="@+id/spinner1"/>
<EditText
android:id="@+id/textt2"
android:layout_width="fill_parent"
android:layout_height="40dp"
/>
<Spinner
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:id="@+id/spinner2"/>
</LinearLayout>
</RelativeLayout>
自定義adapter工具類
package com.example.spinnerdemo;
import java.lang.reflect.Array;
import java.util.ArrayList;
import java.util.List;
import android.content.Context;
import android.text.Layout;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.LinearLayout;
import android.widget.LinearLayout.LayoutParams;
import android.widget.TextView;
public class MyBaseAdapter extends BaseAdapter{
//上下文
Context context;
List<String> list=new ArrayList<String>();
public MyBaseAdapter(Context context,List<String> list){
this.context=context;
this.list = list;
}
@Override
public int getCount() {
// TODO Auto-generated method stub
return list.size();
}
@Override
public Object getItem(int arg0) {
// TODO Auto-generated method stub
return list.get(arg0);
}
@Override
public long getItemId(int position) {
// TODO Auto-generated method stub
return position;
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
// TODO Auto-generated method stub
LinearLayout layout=new LinearLayout(context);
LinearLayout.LayoutParams params=new LinearLayout.LayoutParams(ViewGroup.LayoutParams.FILL_PARENT,
ViewGroup.LayoutParams.FILL_PARENT);
layout.setOrientation(LinearLayout.HORIZONTAL);
LinearLayout.LayoutParams params2=new LayoutParams(ViewGroup.LayoutParams.WRAP_CONTENT,
ViewGroup.LayoutParams.WRAP_CONTENT);
TextView textView=new TextView(context);
textView.setText(this.getItem(position).toString());
layout.addView(textView, params2);
return layout;
}
}
Spinner程式碼:
package com.example.spinnerdemo;
import java.util.ArrayList;
import java.util.List;
import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.widget.AdapterView;
import android.widget.EditText;
import android.widget.Spinner;
import android.widget.AdapterView.OnItemSelectedListener;
public class DemoSpinner extends Activity{
private Spinner sp,sp1,sp2;
private EditText text,text2,text1;
private List<String> arr;
private List<String> arr1;
private List<String> arr2;
@Override
protected void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
text=(EditText)findViewById(R.id.text);
sp=(Spinner)findViewById(R.id.spinner);
text1=(EditText)findViewById(R.id.textt1);
sp1=(Spinner)findViewById(R.id.spinner1);
text2=(EditText)findViewById(R.id.textt2);
sp2=(Spinner)findViewById(R.id.spinner2);
//注意這個資料可以是網路json的資料了
arr = new ArrayList<String>();
arr.add("1");
arr.add("2");
arr.add("3");
arr.add("4");
arr.add("5");
arr.add("6");
//注意這個資料可以是網路json的資料了
arr1 = new ArrayList<String>();
arr1.add("汙染");
arr1.add("風格的");
arr1.add("發給");
arr1.add("濰坊");
arr1.add("發給");
arr1.add("而非");
//注意這個資料可以是網路json的資料了
arr2 = new ArrayList<String>();
arr2.add("123");
arr2.add("224");
arr2.add("223");
arr2.add("4234");
arr2.add("234");
arr2.add("324");
MyBaseAdapter adapter = new MyBaseAdapter(DemoSpinner.this, arr);
// Apply the adapter to the spinner
sp.setAdapter(adapter);
sp.setPrompt("MySpinner"); //作用是給下拉選單新增標題
sp.setOnItemSelectedListener(new SpinnerListener());
MyBaseAdapter adapter1 = new MyBaseAdapter(DemoSpinner.this, arr1);
// Apply the adapter to the spinner
sp1.setAdapter(adapter1);
sp1.setPrompt("MySpinner1"); //作用是給下拉選單新增標題
sp1.setOnItemSelectedListener(new SpinnerListener1());
MyBaseAdapter adapter2 = new MyBaseAdapter(DemoSpinner.this, arr2);
// Apply the adapter to the spinner
sp2.setAdapter(adapter2);
sp2.setPrompt("MySpinner2"); //作用是給下拉選單新增標題
sp2.setOnItemSelectedListener(new SpinnerListener2());
}
class SpinnerListener implements OnItemSelectedListener{
@Override
public void onItemSelected(AdapterView<?> arg0, View arg1, int arg2,
long arg3) {
// TODO Auto-generated method stub
//這個函式當選擇下拉選單選項時呼叫,第一個引數是下拉選單控制元件,第二個引數是當前被選中的Item,
//第三個引數是選中的位置,第四個引數是當前選中的Id。
String selected=arg0.getItemAtPosition(arg2).toString();
text.setText(selected);
//
// String selected1=arg0.getItemAtPosition(arg2).toString();
// text1.setText(selected1);
//
//
// String selected2=arg0.getItemAtPosition(arg2).toString();
// text2.setText(selected2);
}
@Override
public void onNothingSelected(AdapterView<?> arg0) {
// TODO Auto-generated method stub
}
}
class SpinnerListener1 implements OnItemSelectedListener{
@Override
public void onItemSelected(AdapterView<?> arg0, View arg1, int arg2,
long arg3) {
// TODO Auto-generated method stub
//這個函式當選擇下拉選單選項時呼叫,第一個引數是下拉選單控制元件,第二個引數是當前被選中的Item,
//第三個引數是選中的位置,第四個引數是當前選中的Id。
String selected1=arg0.getItemAtPosition(arg2).toString();
text1.setText(selected1);
}
@Override
public void onNothingSelected(AdapterView<?> arg0) {
// TODO Auto-generated method stub
}
}
class SpinnerListener2 implements OnItemSelectedListener{
@Override
public void onItemSelected(AdapterView<?> arg0, View arg1, int arg2,
long arg3) {
// TODO Auto-generated method stub
//這個函式當選擇下拉選單選項時呼叫,第一個引數是下拉選單控制元件,第二個引數是當前被選中的Item,
//第三個引數是選中的位置,第四個引數是當前選中的Id。
String selected2=arg0.getItemAtPosition(arg2).toString();
text2.setText(selected2);
}
@Override
public void onNothingSelected(AdapterView<?> arg0) {
// TODO Auto-generated method stub
}
}
}