【Android】创建Popwindow弹出菜单的两种方式
16lz
2021-01-23
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. */@Overridepublic 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() {@Overridepublic void onClick(View v) {// TODO Auto-generated method stubgetPopupWindow();// 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() {@Overridepublic boolean onTouch(View v, MotionEvent event) {// TODO Auto-generated method stubif (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;@Overrideprotected void onCreate(Bundle savedInstanceState) {// TODO Auto-generated method stubsuper.onCreate(savedInstanceState);setContentView(R.layout.activity_popupwindow_main);findViewById(R.id.popBtn).setOnClickListener(new OnClickListener() {@Overridepublic 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() {@Overridepublic boolean onTouch(View v, MotionEvent event) {// TODO Auto-generated method stubif (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>
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