1，第一步 layout
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical" >
<TextView
android:id="@+id/spinnerText"
android:layout_width="fill_parent"
android:layout_height="wrap_content" >
</TextView>
<Spinner
android:id="@+id/Spinner01"
android:layout_width="fill_parent"
android:layout_height="wrap_content" >
</Spinner>
</LinearLayout>
2：第二步代码
package com.example.testspinner;
import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemSelectedListener;
import android.widget.ArrayAdapter;
import android.widget.Spinner;
import android.widget.TextView;
public class SpinnerActivity extends Activity {
private static final String[] m={"A型","B型","O型","AB型","其他"};
private TextView view ;
private Spinner spinner;
private ArrayAdapter<String> adapter;
@Override
protected void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
view = (TextView) findViewById(R.id.spinnerText);
spinner = (Spinner) findViewById(R.id.Spinner01);
//将可选内容与ArrayAdapter连接起来
adapter = new ArrayAdapter<String>(this,android.R.layout.simple_spinner_item,m);
//设置下拉列表的风格
adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
//将adapter 添加到spinner中
spinner.setAdapter(adapter);
//添加事件Spinner事件监听
spinner.setOnItemSelectedListener(new SpinnerSelectedListener());
//设置默认值
spinner.setVisibility(View.VISIBLE);
}
//使用数组形式操作
class SpinnerSelectedListener implements OnItemSelectedListener{
public void onItemSelected(AdapterView<?> arg0, View arg1, int arg2,
long arg3) {
view.setText("你的血型是："+m[arg2]);
}
public void onNothingSelected(AdapterView<?> arg0) {
}
}
}
