android 自定义spinner的下拉弹出窗口样式

package com.test.ui;import android.app.Activity;import android.graphics.drawable.BitmapDrawable;import android.os.Bundle;import android.view.Gravity;import android.view.KeyEvent;import android.view.View;import android.view.View.OnClickListener;import android.view.ViewGroup.LayoutParams;import android.widget.Button;import android.widget.PopupWindow;import android.widget.Toast;public class TestActivity extends Activity {private Button but_menu;private Button open_id;private Button save_id;View contentView;private PopupWindow m_popupWindow;public void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.main);init();setListener();}private void init() {contentView = getLayoutInflater().inflate(R.layout.popupmenu, null,true);but_menu = (Button) findViewById(R.id.but_menu);open_id = (Button) contentView.findViewById(R.id.btn_popup_information);save_id = (Button) contentView.findViewById(R.id.btn_popup_quote);// PopupWindow弹出的窗口显示的view,第二和第三参数：分别表示此弹出窗口的大小m_popupWindow = new PopupWindow(contentView, LayoutParams.FILL_PARENT,LayoutParams.WRAP_CONTENT, true);m_popupWindow.setBackgroundDrawable(new BitmapDrawable());// 有了这句才可以点击返回（撤销）按钮dismiss()popwindowm_popupWindow.setOutsideTouchable(true);m_popupWindow.setAnimationStyle(R.style.PopupAnimation);}private void setListener() {contentView.setOnClickListener(new View.OnClickListener() {public void onClick(View v) {m_popupWindow.dismiss();}});// m_popupWindow = new PopupWindow();but_menu.setOnClickListener(new OnClickListener() {public void onClick(View v) {try {if (m_popupWindow.isShowing()) {m_popupWindow.dismiss();}m_popupWindow.showAsDropDown(v);} catch (Exception e) {Toast.makeText(TestActivity.this, e.getMessage(),Toast.LENGTH_SHORT);}}});open_id.setOnClickListener(new OnClickListener() {public void onClick(View v) {m_popupWindow.dismiss();Toast.makeText(TestActivity.this, "打开被触发", Toast.LENGTH_SHORT).show();}});save_id.setOnClickListener(new OnClickListener() {public void onClick(View v) {m_popupWindow.dismiss();Toast.makeText(TestActivity.this, "保存被触发", Toast.LENGTH_SHORT).show();}});}public boolean onKeyDown(int keyCode, KeyEvent event) {if (keyCode == KeyEvent.KEYCODE_BACK) {if (m_popupWindow != null && m_popupWindow.isShowing()) {m_popupWindow.dismiss();return true;}}return super.onKeyDown(keyCode, event);}}

popupmenu.xml：

popupmenu.xml<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"    android:id="@+id/lin_main"    android:layout_width="wrap_content"    android:layout_height="wrap_content"    android:paddingRight="120dip" >    <LinearLayout        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:background="@drawable/popup_search"        android:orientation="vertical" >        <Button            android:id="@+id/btn_popup_information"            android:layout_width="fill_parent"            android:layout_height="wrap_content"            android:layout_weight="1"            android:background="@drawable/goods_bg"            android:text="打开"            android:textColor="#000000"            android:textSize="16sp" />        <Button            android:id="@+id/btn_popup_quote"            android:layout_width="fill_parent"            android:layout_height="wrap_content"            android:layout_marginTop="5dip"            android:layout_weight="1"            android:background="@drawable/goods_bg"            android:text="保存"            android:textColor="#000000"            android:textSize="16sp" />        <Button            android:id="@+id/btn_popup_product"            android:layout_width="fill_parent"            android:layout_height="wrap_content"            android:layout_marginTop="5dip"            android:layout_weight="1"            android:background="@drawable/goods_bg"            android:text="关于我们"            android:textColor="#000000"            android:textSize="16sp" />        <Button            android:id="@+id/btn_popup_buy"            android:layout_width="fill_parent"            android:layout_height="wrap_content"            android:layout_marginTop="5dip"            android:layout_weight="1"            android:background="@drawable/shop_bg"            android:text="关闭"            android:textColor="#000000"            android:textSize="16sp" />    </LinearLayout></LinearLayout> 

下面的是popwindow出现和退出的动画特效，这种东西网上有很多，就拿出这个吧。

 

values/style.xml<?xml version="1.0" encoding="utf-8"?><resources>    <style name="PopupAnimation" parent="android:Animation">        <item name="android:windowEnterAnimation">@anim/popup_search_show</item>        <item name="android:windowExitAnimation">@anim/popup_search_hide</item>    </style></resources>

 

anim/popup_search_show.xml<?xml version="1.0" encoding="utf-8"?><set xmlns:android="http://schemas.android.com/apk/res/android" android:interpolator="@android:anim/decelerate_interpolator">    <scale        android:duration="500"        android:fromXScale="1.0"        android:fromYScale="1.0"       android:pivotX="0.100000024%"        android:pivotY="0.0"       android:toXScale="0.0"        android:toYScale="0.0">    </scale></set>

 

anim/popup_search_hide.xml<?xml version="1.0" encoding="utf-8"?><set xmlns:android="http://schemas.android.com/apk/res/android"    android:interpolator="@android:anim/decelerate_interpolator" >    <scale        android:duration="500"        android:fromXScale="0.0"        android:fromYScale="0.0"        android:pivotX="0.100000024%"        android:pivotY="0.0"        android:toXScale="1.0"        android:toYScale="1.0" >    </scale></set>

效果图