【Android】创建Popwindow弹出菜单的两种方式

方法一的Activity

package com.app.test02;

import android.app.Activity;
import android.os.Bundle;
import android.view.Gravity;
import android.view.MotionEvent;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.View.OnTouchListener;
import android.view.ViewGroup.LayoutParams;
import android.widget.Button;
import android.widget.PopupWindow;
import android.widget.Toast;

public class PopwindowLeft extends Activity {
	// 声明PopupWindow对象的引用
	private PopupWindow popupWindow;

	/** Called when the activity is first created. */
	@Override
	public void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.activity_popupwindow_main);
		// 点击按钮弹出菜单
		Button pop = (Button) findViewById(R.id.popBtn);
		pop.setOnClickListener(popClick);
	}

	// 点击弹出左侧菜单的显示方式
	OnClickListener popClick = new OnClickListener() {
		@Override
		public void onClick(View v) {
			// TODO Auto-generated method stub
			getPopupWindow();
			// 这里是位置显示方式,在屏幕的左侧
			popupWindow.showAtLocation(v, Gravity.LEFT, 0, 0);
		}
	};

	/**
	 * 创建PopupWindow
	 */
	protected void initPopuptWindow() {
		// TODO Auto-generated method stub
		// 获取自定义布局文件activity_popupwindow_left.xml的视图
		View popupWindow_view = getLayoutInflater().inflate(R.layout.activity_popupwindow_left, null,
				false);
		// 创建PopupWindow实例,200,LayoutParams.MATCH_PARENT分别是宽度和高度
		popupWindow = new PopupWindow(popupWindow_view, 200, LayoutParams.MATCH_PARENT, true);
		// 设置动画效果
		popupWindow.setAnimationStyle(R.style.AnimationFade);
		// 点击其他地方消失
		popupWindow_view.setOnTouchListener(new OnTouchListener() {
			@Override
			public boolean onTouch(View v, MotionEvent event) {
				// TODO Auto-generated method stub
				if (popupWindow != null && popupWindow.isShowing()) {
					popupWindow.dismiss();
					popupWindow = null;
				}
				return false;
			}
		});
	}
	/***
	 * 获取PopupWindow实例
	 */
	private void getPopupWindow() {
		if (null != popupWindow) {
			popupWindow.dismiss();
			return;
		} else {
			initPopuptWindow();
		}
	}
}

方法二的Activity

package com.app.test02;

import android.app.Activity;
import android.os.Bundle;
import android.view.Gravity;
import android.view.MotionEvent;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.View.OnTouchListener;
import android.view.ViewGroup.LayoutParams;
import android.widget.PopupWindow;

public class PopwindowLeftNew extends Activity{
	private PopupWindow popupWindow;
	@Override
	protected void onCreate(Bundle savedInstanceState) {
		// TODO Auto-generated method stub
		super.onCreate(savedInstanceState);
		setContentView(R.layout.activity_popupwindow_main);

		findViewById(R.id.popBtn).setOnClickListener(new OnClickListener() {
			@Override
			public void onClick(View v) {
				// TODO Auto-generated method stub
				// 获取自定义布局文件activity_popupwindow_left.xml的视图
				View popupWindow_view = getLayoutInflater().inflate(R.layout.activity_popupwindow_left, null,false);
				// 创建PopupWindow实例,200,LayoutParams.MATCH_PARENT分别是宽度和高度
				popupWindow = new PopupWindow(popupWindow_view, 200, LayoutParams.MATCH_PARENT, true);
				// 设置动画效果
				popupWindow.setAnimationStyle(R.style.AnimationFade);
				// 这里是位置显示方式,在屏幕的左侧
				popupWindow.showAtLocation(v, Gravity.LEFT, 0, 0);
				// 点击其他地方消失
				popupWindow_view.setOnTouchListener(new OnTouchListener() {
					@Override
					public boolean onTouch(View v, MotionEvent event) {
						// TODO Auto-generated method stub
						if (popupWindow != null && popupWindow.isShowing()) {
							popupWindow.dismiss();
							popupWindow = null;
						}
						return false;
					}
				});
			}
		});

	}
}

效果图

附：一些相关的布局文件

PopupWindow弹出菜单

activity_popupwindow_main.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical"
    android:background="#fff" >

	<Button android:id="@+id/popBtn"
		android:layout_width="fill_parent"
		android:layout_height="wrap_content"
		android:text="弹出左侧菜单" /> 

</LinearLayout>

activity_popupwindow_left.xml

<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:background="@android:color/darker_gray"
    android:orientation="vertical"
    android:gravity="center"
    android:paddingTop="50dp">

    <Button
        android:id="@+id/open"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:layout_weight="1"
        android:background="@android:color/darker_gray"
        android:text="打开" />

    <Button
        android:id="@+id/save"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:layout_weight="1"
        android:background="@android:color/darker_gray"
        android:text="保存" />

    <Button
        android:id="@+id/close"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:layout_weight="1"
        android:background="@android:color/darker_gray"
        android:text="关闭" />

    <Button
        android:id="@+id/open"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:layout_weight="1"
        android:background="@android:color/darker_gray"
        android:text="打开" />

    <Button
        android:id="@+id/save"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:layout_weight="1"
        android:background="@android:color/darker_gray"
        android:text="保存" />

    <Button
        android:id="@+id/close"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:layout_weight="1"
        android:background="@android:color/darker_gray"
        android:text="关闭" />

    <Button
        android:id="@+id/open"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:layout_weight="1"
        android:background="@android:color/darker_gray"
        android:text="打开" />

    <Button
        android:id="@+id/save"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:layout_weight="1"
        android:background="@android:color/darker_gray"
        android:text="保存" />

    <Button
        android:id="@+id/close"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:layout_weight="1"
        android:background="@android:color/darker_gray"
        android:text="关闭" />

</LinearLayout>

弹出动画XML

在res文件夹下，建立anim文件夹。写入如下两个文件。

弹出动画

in_lefttoright.xml

<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android" >

    <!-- 定义从左向右进入的动画 -->
    <translate
        android:duration="500"
        android:fromXDelta="-100%"
        android:toXDelta="0" />

</set>

弹回动画

out_righttoleft.xml

<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android" >

    <!-- 定义从右向左动画退出动画 -->
    <translate
        android:duration="500"
        android:fromXDelta="0"
        android:toXDelta="-100%" />

</set>

动画管理

在styles.xml中，添加如下管理代码。

    <style name="AnimationFade">

        <!-- PopupWindow左右弹出的效果 -->
        <item name="android:windowEnterAnimation">@anim/in_lefttoright</item>
        <item name="android:windowExitAnimation">@anim/out_righttoleft</item>
    </style>