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Android如何實(shí)現(xiàn)Spinner下拉列表效果-創(chuàng)新互聯(lián)
這篇文章主要介紹“Android如何實(shí)現(xiàn)Spinner下拉列表效果”的相關(guān)知識,小編通過實(shí)際案例向大家展示操作過程,操作方法簡單快捷,實(shí)用性強(qiáng),希望這篇“Android如何實(shí)現(xiàn)Spinner下拉列表效果”文章能幫助大家解決問題。
一、以數(shù)組作為數(shù)據(jù)源
這種實(shí)現(xiàn)方式比較簡單,先上效果圖:
xml文件代碼;
MainActivity文件代碼:
package com.kiritor.ui_spinner; import android.app.Activity; import android.os.Bundle; import android.view.Menu; import android.view.View; import android.widget.AdapterView.OnItemSelectedListener; import android.widget.AdapterView; import android.widget.ArrayAdapter; import android.widget.Spinner; import android.widget.TextView; public class MainActivity extends Activity { private TextView result = null; private Spinner spinner = null; private ArrayAdapteradapter = null; private static final String [] langurage ={"機(jī)器語言","匯編","c語言","c++語言","java語言"}; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); result = (TextView)findViewById(R.id.result); spinner = (Spinner)findViewById(R.id.spinner); adapter = new ArrayAdapter (this,android.R.layout.simple_spinner_item,langurage); //設(shè)置下拉列表風(fēng)格 adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item); //將適配器添加到spinner中去 spinner.setAdapter(adapter); spinner.setVisibility(View.VISIBLE);//設(shè)置默認(rèn)顯示 spinner.setOnItemSelectedListener(new OnItemSelectedListener() { @Override public void onItemSelected(AdapterView> arg0, View arg1, int arg2, long arg3) { // TODO Auto-generated method stub result.setText("你的選擇是:"+((TextView)arg1).getText()); } @Override public void onNothingSelected(AdapterView> arg0) { // TODO Auto-generated method stub } }); } @Override public boolean onCreateOptionsMenu(Menu menu) { // Inflate the menu; this adds items to the action bar if it is present. getMenuInflater().inflate(R.menu.main, menu); return true; } }
二、以xml文件作為數(shù)據(jù)源
先上效果圖吧:
數(shù)據(jù)源xml文件:
- 機(jī)器語言
- 匯編語言
- c語言
- c++語言
- java語言
- Android學(xué)習(xí)
xml文件:
MainActivity
package com.kiritor.ui_spinner; import android.app.Activity; import android.os.Bundle; import android.view.Menu; import android.view.View; import android.widget.AdapterView.OnItemSelectedListener; import android.widget.AdapterView; import android.widget.ArrayAdapter; import android.widget.Spinner; import android.widget.TextView; public class MainActivity extends Activity { private TextView result = null; private Spinner spinner = null; private ArrayAdapteradapter = null; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); result = (TextView)findViewById(R.id.result); spinner = (Spinner)findViewById(R.id.spinner); adapter = ArrayAdapter.createFromResource(this,R.array.langurage,android.R.layout.simple_spinner_item); //設(shè)置下拉列表風(fēng)格 adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item); //將適配器添加到spinner中去 spinner.setAdapter(adapter); spinner.setVisibility(View.VISIBLE); spinner.setOnItemSelectedListener(new OnItemSelectedListener() { @Override public void onItemSelected(AdapterView> arg0, View arg1, int arg2, long arg3) { // TODO Auto-generated method stub result.setText("你的選擇是:"+((TextView)arg1).getText()); } @Override public void onNothingSelected(AdapterView> arg0) { // TODO Auto-generated method stub } }); } @Override public boolean onCreateOptionsMenu(Menu menu) { // Inflate the menu; this adds items to the action bar if it is present. getMenuInflater().inflate(R.menu.main, menu); return true; } }
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本文名稱:Android如何實(shí)現(xiàn)Spinner下拉列表效果-創(chuàng)新互聯(lián)
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