<string-array name="state">  <item >今日</item>  <item >昨日</item>  <item >本周</item>  <item >上周</item>  <item >本月</item>  <item >上月</item> </string-array>

String[] mItems = getResources().getStringArray(R.array.state);

package com.example.dow.spinner;import android.support.v7.app.AppCompatActivity;import android.os.Bundle;import android.view.View;import android.widget.AdapterView;import android.widget.ArrayAdapter;import android.widget.Spinner;import android.widget.TextView;import org.w3c.dom.Text;import java.util.ArrayList;public class MainActivity extends AppCompatActivity { private Spinner mSpinner; private TextView mTv; @Override protected void onCreate(Bundle savedInstanceState) {  super.onCreate(savedInstanceState);  setContentView(R.layout.activity_main);  mSpinner = (Spinner) findViewById(R.id.sp_btn);  //只是為了展示我們的實(shí)現(xiàn)效果，故可不要  mTv = (TextView) findViewById(R.id.tv_content);  //數(shù)據(jù)源  ArrayList<String> spinners = new ArrayList<>();  spinners.add("今日");  spinners.add("昨日");  spinners.add("本周");  spinners.add("上周");  spinners.add("本月");  spinners.add("上月");  //設(shè)置ArrayAdapter內(nèi)置的item樣式-這里是單行顯示樣式  final ArrayAdapter<String> adapter = new ArrayAdapter<String>(this, android.R.layout.simple_spinner_item, spinners);  //這里設(shè)置的是Spinner的樣式 ， 輸入 simple_之后會(huì)提示有4人，如果專屬spinner的話應(yīng)該是倆種，在特殊情況可自己定義樣式  adapter.setDropDownViewResource(android.R.layout.simple_spinner_item);  //設(shè)置Adapter了  mSpinner.setAdapter(adapter);  //監(jiān)聽Spinner的操作  mSpinner.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {   //選取時(shí)候的操作   @Override   public void onItemSelected(AdapterView<?> parent, View view, int position, long id) {    mTv.setText(adapter.getItem(position));   }   //沒被選取時(shí)的操作   @Override   public void onNothingSelected(AdapterView<?> parent) {    mTv.setText("No anything");   }  }); }}

<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:tools="http://schemas.android.com/tools" android:id="@+id/activity_main" android:orientation="vertical" android:layout_width="match_parent" android:layout_height="match_parent" tools:context="com.example.dow.spinner.MainActivity"> <Spinner  android:padding="5dp"  android:layout_gravity="center"  android:layout_width="60dp"  android:layout_height="wrap_content"  android:id="@+id/sp_btn" /> <TextView  android:padding="5dp"  android:layout_gravity="center"  android:layout_width="wrap_content"  android:layout_height="wrap_content"  android:id="@+id/tv_content"  /></LinearLayout>