创建Popwindow弹出菜单的两种方式

方法一的Activity

[java] view
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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

[java] view
plaincopy

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

[html] view
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<?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

[html] view
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<?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

[html] view
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<?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

[html] view
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<?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。

[html] view
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<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>