自己实现一个右滑删除的ListView, SwipeMenuListView

2024-05-11 23:32
文章标签 实现 删除 listview 右滑 swipemenulistview

本文主要是介绍自己实现一个右滑删除的ListView, SwipeMenuListView，希望对大家解决编程问题提供一定的参考价值，需要的开发者们随着小编来一起学习吧！

参考了以下源码：https://github.com/baoyongzhang/SwipeMenuListView

实现的效果(顺便推荐一个视频转gif的网址：http://www.gif5.net/)

 

 

 

 

 

 

 

 

 

实现的效果包括：

1.左滑item出现menu view,

  • 左滑距离过短时自动关掉menu view,
  • 左滑距离超过一定值时自动打开menu view,

2.menu view打开的时候，

  • 右滑能够关闭menu view;
  • 右滑超过一定的值时松开自动关闭menu view
  • 右滑距离过短时松开，自动使menu view仍然是打开状态
  • 点击其他item关闭menu view
  • 点击menu view是打开的item,但是点击区域不在menu view上的时候关闭menu view
  • 点击menu view中的按钮，实现相应的操作(具体事件处理见代码)

首先抛出几个问题：

1.如何根据我们的手势判定要左滑的position

2.滑动到什么程度让左滑的Menu显示出来

3.怎么处理item左滑与ListView的滑动的冲突

4.menu怎么添加

5.只能有一个是Open的状态，如果Item1是Open，这时候点击或者滑动Item2,应该使Item1关闭（拦截触摸事件，稍候详细添加）

首先，定义一个CustomSlideDeleteItemView，这个View的layout要重写，确定menu的摆放位置，具体见代码

package com.example.myapp.view;import android.content.Context;
import android.content.res.TypedArray;
import android.util.AttributeSet;
import android.util.Log;
import android.view.Gravity;
import android.view.MotionEvent;
import android.view.View;
import android.view.ViewGroup;
import android.widget.FrameLayout;
import android.widget.LinearLayout;
import android.widget.TextView;import com.example.myapp.R;
import com.example.myapp.util.Methods;import java.util.ArrayList;
import java.util.List;/*** Created by zyr* DATE: 16-3-19* Time: 下午3:54* Email: yanru.zhang@renren-inc.com*/
public class CustomSlideDeleteItemView extends FrameLayout{private Context mContext;private List<View> menuViews = new ArrayList<>();private View contentView;public LinearLayout getMenuViewContainer() {return menuViewContainer;}private LinearLayout menuViewContainer;private int contentViewId;private int contentViewWidth,contentViewHeight,menuWidth,menuHeight;private int menuState = MENU_STATE_CLOSE;public final static int MENU_STATE_CLOSE = 0;public final static int MENU_STATE_OPEN = 1;public final static int MENU_STATE_HALF_OPEN = 2;public void setOnMenuClickListener(OnMenuClickListener onMenuClickListener) {this.onMenuClickListener = onMenuClickListener;}private OnMenuClickListener onMenuClickListener;public interface OnMenuClickListener{void onMenuClick(int i,int counts);}public CustomSlideDeleteItemView(Context context) {this(context, null);}public CustomSlideDeleteItemView(Context context, AttributeSet attrs) {this(context, attrs, 0);}public CustomSlideDeleteItemView(Context context, AttributeSet attrs, int defStyleAttr) {super(context, attrs, defStyleAttr);mContext = context;menuWidth = Methods.computePixelsWithDensity(mContext,100);
//        Log.d("zyr","menuWidth:" + menuWidth);TypedArray typedArray = context.obtainStyledAttributes(attrs, R.styleable.CustomSlideDeleteItemView);for(int i=0;i<typedArray.length();i++){int attr = typedArray.getIndex(i);switch (attr){case R.styleable.CustomSlideDeleteItemView_contentViewId:contentViewId = typedArray.getResourceId(R.styleable.CustomSlideDeleteItemView_contentViewId,0);break;}}if(contentViewId!=0){contentView = findViewById(contentViewId);}menuViewContainer = new LinearLayout(mContext);menuViewContainer.setOrientation(LinearLayout.HORIZONTAL);ViewGroup.LayoutParams layoutParams = new ViewGroup.LayoutParams(ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.MATCH_PARENT);addView(menuViewContainer, layoutParams);}@Overrideprotected void onLayout(boolean changed, int left, int top, int right, int bottom) {super.onLayout(changed, left, top, right, bottom);if(contentView!=null){contentView.layout(0, 0, getMeasuredWidth(), getMeasuredHeight());}layoutMenu();}@Overrideprotected void onSizeChanged(int w, int h, int oldw, int oldh) {super.onSizeChanged(w, h, oldw, oldh);if(w!=oldw || h!=oldh){contentViewHeight = menuHeight = h;contentViewWidth = w;
//            Log.d("zyr","contentViewWidth:" + contentViewWidth);}}public void addMenu(String s,int color){TextView textView = new TextView(mContext);textView.setText(s);textView.setBackgroundColor(color);textView.setTextColor(getResources().getColor(R.color.white));textView.setGravity(Gravity.CENTER);LinearLayout.LayoutParams layoutParams = new LinearLayout.LayoutParams(menuWidth, ViewGroup.LayoutParams.MATCH_PARENT);menuViews.add(textView);menuViewContainer.addView(textView, layoutParams);invalidate();for(int i=0;i<menuViews.size();i++){final int position = i;View view = menuViews.get(i);view.setOnClickListener(new OnClickListener() {@Overridepublic void onClick(View v) {if(onMenuClickListener!=null){onMenuClickListener.onMenuClick(position,menuViews.size());scrollClose();}}});}}public void clearAllMenu(){menuViews.clear();menuViewContainer.removeAllViews();invalidate();}private void layoutMenu() {menuViewContainer.layout(contentViewWidth, 0, contentViewWidth + menuWidth * menuViews.size(), contentViewHeight);}public void scroll(int deltaX,int lastDeltaX) {if(deltaX < 0){
//            Log.d("zyr","deltaX:" + deltaX);
//            Log.e("zyr","menuWidth * menuViews.size():" + menuWidth * menuViews.size());if(Math.abs(deltaX) > menuWidth * menuViews.size() ){scrollTo(menuWidth * menuViews.size(), 0);menuState = MENU_STATE_OPEN;}else{scrollBy(-lastDeltaX, 0);menuState = MENU_STATE_HALF_OPEN;}}else{if( !isClosed() ){
//                Log.d("zyr","deltaX:" + deltaX);
//                Log.e("zyr", "menuWidth * menuViews.size():" + menuWidth * menuViews.size());if(Math.abs(deltaX) > menuWidth * menuViews.size()){scrollTo(0,0);menuState = MENU_STATE_CLOSE;}else{scrollBy(-lastDeltaX, 0);menuState = MENU_STATE_HALF_OPEN;}}}}public void autoScroll(int deltaX){if(deltaX < 0){if(Math.abs(deltaX) < menuWidth){scrollTo(0, 0);menuState = MENU_STATE_CLOSE;}else{scrollTo(menuWidth * menuViews.size(), 0);menuState = MENU_STATE_OPEN;}}else{if( !isClosed() ){if(Math.abs(deltaX) < menuWidth){scrollTo(menuWidth * menuViews.size(), 0);menuState = MENU_STATE_OPEN;}else{scrollTo(0,0);menuState = MENU_STATE_CLOSE;}}}}public void scrollClose(){scrollTo(0,0);menuState = MENU_STATE_CLOSE;}public boolean isClosed(){if(menuState == MENU_STATE_CLOSE){return true;}else{return false;}}}


在attr文件中定义

<declare-styleable name="CustomSlideDeleteItemView"><attr name="contentViewId" format="integer"/></declare-styleable>

然后定义我们的CustomSlideDeleteListView

package com.example.myapp.view;import android.content.Context;
import android.content.res.TypedArray;
import android.graphics.Color;
import android.graphics.drawable.ColorDrawable;
import android.util.AttributeSet;
import android.util.Log;
import android.view.MotionEvent;
import android.widget.ListView;import com.example.myapp.R;
import com.example.myapp.util.Methods;/*** Created by zyr* DATE: 16-3-18* Time: 下午5:42* Email: yanru.zhang@renren-inc.com* 参照：https://github.com/baoyongzhang/SwipeMenuListView* 还有一些没有解决的问题，* 1.触摸拦截*/
public class CustomSlideDeleteListView extends ListView {private Context mContext;private CustomSlideDeleteItemView mCurrentView,mLastTouchItemView;private int currentItemId,lastItemId,touchItemId;private int downX,downY,moveX,moveY,deltaX,deltaY,upX,upY,lastX,lastDeltaX;public final static int MIN_SCROLL_DIS = 100;private int touchState=TOUCH_STATE_NONE;public final static int TOUCH_STATE_X = 1;public final static int TOUCH_STATE_Y = 2;public final static int TOUCH_STATE_NONE = 0;private int  direction = DIRECTION_NONE;public final static int DIRECTION_LEFT = 1;//左滑public final static int DIRECTION_RIGHT = 2;//右滑public final static int DIRECTION_TOP = 3;//左滑public final static int DIRECTION_BOTTOM = 4;//右滑public final static int DIRECTION_NONE = 0;//public CustomSlideDeleteListView(Context context) {this(context, null);}public CustomSlideDeleteListView(Context context, AttributeSet attrs) {this(context, attrs, 0);}public CustomSlideDeleteListView(Context context, AttributeSet attrs, int defStyleAttr) {super(context, attrs, defStyleAttr);mContext = context;setSelector(new ColorDrawable(Color.TRANSPARENT));TypedArray typedArray = context.obtainStyledAttributes(attrs, R.styleable.CustomSlideDeleteListView);for(int i=0;i<typedArray.length();i++){int attr = typedArray.getIndex(i);switch (attr){case R.styleable.CustomSlideDeleteListView_rightViewId:break;}}}@Overridepublic boolean dispatchTouchEvent(MotionEvent ev) {switch (ev.getAction()){case MotionEvent.ACTION_DOWN:lastX = downX = (int) ev.getX();downY = (int) ev.getY();touchItemId = pointToPosition(downX,downY);touchState = TOUCH_STATE_NONE;break;case MotionEvent.ACTION_MOVE:moveX = (int) ev.getX();moveY = (int) ev.getY();deltaX = moveX - downX;deltaY = moveY - downY;lastDeltaX = moveX - lastX;lastX = moveX;if(Math.abs(deltaX) > Math.abs(deltaY) && Math.abs(deltaX) > MIN_SCROLL_DIS){touchState = TOUCH_STATE_X;if(deltaX > 0){direction = DIRECTION_RIGHT;}else{direction = DIRECTION_LEFT;}}else if(Math.abs(deltaX) <= Math.abs(deltaY) && Math.abs(deltaY) > MIN_SCROLL_DIS){touchState = TOUCH_STATE_Y;if(deltaY > 0){direction = DIRECTION_BOTTOM;}else{direction = DIRECTION_TOP;}}else {touchState = TOUCH_STATE_NONE;direction = DIRECTION_NONE;}
//                Log.e("zyr","touchState:" + touchState);
//                Log.e("zyr","direction"+ direction);break;}return super.dispatchTouchEvent(ev);}@Overridepublic boolean onInterceptTouchEvent(MotionEvent ev) {switch (ev.getAction()){case MotionEvent.ACTION_DOWN://按下的位置不是上次按下的位置//上次的iew不是空，而且是打开的，拦截if(touchItemId != lastItemId&& mLastTouchItemView!=null&& !mLastTouchItemView.isClosed()){return true;}break;case MotionEvent.ACTION_MOVE://if 向距离大于纵向距离，拦截if(touchState == TOUCH_STATE_X ){return true;}break;case MotionEvent.ACTION_UP://只是点击了一下//有处于Open状态的menu//没有点击在menu上面,拦截if(touchState==TOUCH_STATE_NONE&& mLastTouchItemView!=null&& !mLastTouchItemView.isClosed()&& !Methods.inRangeOfView(mLastTouchItemView.getMenuViewContainer(),ev)){return true;}break;}return super.onInterceptTouchEvent(ev);}@Overridepublic boolean onTouchEvent(MotionEvent ev) {switch (ev.getAction()){case MotionEvent.ACTION_DOWN:if(touchItemId != lastItemId&& mLastTouchItemView!=null&& !mLastTouchItemView.isClosed()){mLastTouchItemView.scrollClose();return true;}break;case MotionEvent.ACTION_MOVE:if(touchState == TOUCH_STATE_X ){lastItemId = currentItemId;currentItemId = pointToPosition(downX,downY);mLastTouchItemView = mCurrentView;mCurrentView = (CustomSlideDeleteItemView)getChildAt(currentItemId - getFirstVisiblePosition());mCurrentView.scroll(deltaX,lastDeltaX);return true;}break;case MotionEvent.ACTION_UP:upX = (int)ev.getX();upY = (int)ev.getY();if(touchState == TOUCH_STATE_X && mCurrentView!=null){mCurrentView.autoScroll(upX - downX);return true;}if(touchState==TOUCH_STATE_NONE&& mLastTouchItemView!=null&& !mLastTouchItemView.isClosed()&& !Methods.inRangeOfView(mLastTouchItemView.getMenuViewContainer(),ev)){mLastTouchItemView.scrollClose();return true;}break;}return super.onTouchEvent(ev);}
}


最后需要定义我们的Adapter

复制代码 
package com.example.myapp.adapter;import android.content.Context;
import android.graphics.Color;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.Filter;
import android.widget.Filterable;
import android.widget.TextView;
import android.widget.Toast;import com.example.myapp.R;
import com.example.myapp.view.CustomSlideDeleteItemView;import java.util.ArrayList;
import java.util.List;/*** Created by zyr* DATE: 15-11-26* Time: 下午2:52* Email: yanru.zhang@renren-inc.com*/
public class CustomSlideDeleteListViewAdapter extends BaseAdapter implements Filterable{public List<String> arrayList = new ArrayList<String>();private Context context;private MyFilter mFilter;public CustomSlideDeleteListViewAdapter(Context context){this.context = context;}public CustomSlideDeleteListViewAdapter(Context context, List<String> arrayList){this.context = context;this.arrayList = new ArrayList<String>(arrayList);}public void setData(List<String> array){if(array ==null){return;}arrayList = new ArrayList<String>(array);notifyDataSetChanged();}@Overridepublic int getCount() {return arrayList.size();}@Overridepublic Object getItem(int position) {return arrayList.get(position);}@Overridepublic long getItemId(int position) {return position;}@Overridepublic View getView(final int position, View convertView, ViewGroup parent) {ViewHolder viewHolder = null;if(convertView ==null){convertView = LayoutInflater.from(context).inflate(R.layout.list_view_item,null);viewHolder = new ViewHolder(convertView);convertView.setTag(viewHolder);}else{viewHolder = (ViewHolder)convertView.getTag();}viewHolder.itemView.clearAllMenu();viewHolder.itemView.addMenu("Delete", Color.RED);viewHolder.itemView.addMenu("Open", Color.BLUE);viewHolder.itemView.scrollBack();viewHolder.textView.setText(arrayList.get(position));viewHolder.itemView.setOnMenuClickListener(new CustomSlideDeleteItemView.OnMenuClickListener() {@Overridepublic void onMenuClick(int i, int counts) {switch (i){case 0:arrayList.remove(position);notifyDataSetChanged();break;case 1:break;}}});return convertView;}@Overridepublic Filter getFilter() {if (mFilter == null) {mFilter = new MyFilter();}return mFilter;}class MyFilter extends Filter {@Overrideprotected FilterResults performFiltering(CharSequence constraint) {FilterResults results = new FilterResults();if (arrayList == null) {arrayList = new ArrayList<String>();}results.values = arrayList;results.count = arrayList.size();return results;}@Overrideprotected void publishResults(CharSequence constraint, FilterResults results) {if (results.count > 0) {notifyDataSetChanged();} else {notifyDataSetInvalidated();}}}class ViewHolder{CustomSlideDeleteItemView itemView;TextView textView;public ViewHolder(View view){itemView = (CustomSlideDeleteItemView)view;textView = (TextView)view.findViewById(R.id.list_view_text);}}
}
复制代码

adapter引用的xml文件

复制代码 
<?xml version="1.0" encoding="utf-8"?>
<com.example.myapp.view.CustomSlideDeleteItemView xmlns:android="http://schemas.android.com/apk/res/android"android:layout_width="match_parent"android:layout_height="wrap_content"xmlns:app="http://schemas.android.com/apk/res-auto"android:background="@drawable/common_listview_bg"app:contentViewId="@+id/list_view_text"><TextView android:id="@+id/list_view_text"android:layout_width="match_parent"android:layout_height="50dp"android:gravity="center"android:textColor="@color/primary"android:textStyle="bold"android:paddingLeft="20dp" />
</com.example.myapp.view.CustomSlideDeleteItemView>
复制代码

 

在Activity中引用

  customSlideDeleteListView = (CustomSlideDeleteListView) findViewById(R.id.custom_slid_delete_list_view);for(int i=0;i<100;i++){stringList.add("zyr" + i);}customSlideDeleteListViewAdapter = new CustomSlideDeleteListViewAdapter(this,stringList);customSlideDeleteListView.setAdapter(customSlideDeleteListViewAdapter);

这篇关于自己实现一个右滑删除的ListView, SwipeMenuListView的文章就介绍到这儿，希望我们推荐的文章对编程师们有所帮助！


http://www.chinasem.cn/article/980967。

相关文章

SpringBoot集成redisson实现延时队列教程

SpringBoot集成redisson实现延时队列教程

《SpringBoot集成redisson实现延时队列教程》文章介绍了使用Redisson实现延迟队列的完整步骤,包括依赖导入、Redis配置、工具类封装、业务枚举定义、执行器实现、Bean创建、消费... 目录1、先给项目导入Redisson依赖2、配置redis3、创建 RedissonConfig 配
阅读更多...
Python的Darts库实现时间序列预测

Python的Darts库实现时间序列预测

《Python的Darts库实现时间序列预测》Darts一个集统计、机器学习与深度学习模型于一体的Python时间序列预测库,本文主要介绍了Python的Darts库实现时间序列预测,感兴趣的可以了解... 目录目录一、什么是 Darts？二、安装与基本配置安装 Darts导入基础模块三、时间序列数据结构与
阅读更多...
Python使用FastAPI实现大文件分片上传与断点续传功能

Python使用FastAPI实现大文件分片上传与断点续传功能

《Python使用FastAPI实现大文件分片上传与断点续传功能》大文件直传常遇到超时、网络抖动失败、失败后只能重传的问题,分片上传+断点续传可以把大文件拆成若干小块逐个上传,并在中断后从已完成分片继... 目录一、接口设计二、服务端实现（FastAPI）2.1 运行环境2.2 目录结构建议2.3 serv
阅读更多...
C#实现千万数据秒级导入的代码

C#实现千万数据秒级导入的代码

《C#实现千万数据秒级导入的代码》在实际开发中excel导入很常见,现代社会中很容易遇到大数据处理业务,所以本文我就给大家分享一下千万数据秒级导入怎么实现,文中有详细的代码示例供大家参考,需要的朋友可... 目录前言一、数据存储二、处理逻辑优化前代码处理逻辑优化后的代码总结前言在实际开发中excel导入很
阅读更多...
SpringBoot+RustFS 实现文件切片极速上传的实例代码

SpringBoot+RustFS 实现文件切片极速上传的实例代码

《SpringBoot+RustFS实现文件切片极速上传的实例代码》本文介绍利用SpringBoot和RustFS构建高性能文件切片上传系统,实现大文件秒传、断点续传和分片上传等功能,具有一定的参考... 目录一、为什么选择 RustFS + SpringBoot？二、环境准备与部署2.1 安装 RustF
阅读更多...
Nginx部署HTTP/3的实现步骤

Nginx部署HTTP/3的实现步骤

《Nginx部署HTTP/3的实现步骤》本文介绍了在Nginx中部署HTTP/3的详细步骤,文中通过示例代码介绍的非常详细,对大家的学习或者工作具有一定的参考学习价值,需要的朋友们下面随着小编来一起学... 目录前提条件第一步：安装必要的依赖库第二步：获取并构建 BoringSSL第三步：获取 Nginx
阅读更多...
MyBatis Plus实现时间字段自动填充的完整方案

MyBatis Plus实现时间字段自动填充的完整方案

《MyBatisPlus实现时间字段自动填充的完整方案》在日常开发中,我们经常需要记录数据的创建时间和更新时间,传统的做法是在每次插入或更新操作时手动设置这些时间字段,这种方式不仅繁琐,还容易遗漏,... 目录前言解决目标技术栈实现步骤1. 实体类注解配置2. 创建元数据处理器3. 服务层代码优化填充机制详
阅读更多...
Python实现Excel批量样式修改器(附完整代码)

Python实现Excel批量样式修改器(附完整代码)

《Python实现Excel批量样式修改器(附完整代码)》这篇文章主要为大家详细介绍了如何使用Python实现一个Excel批量样式修改器,文中的示例代码讲解详细,感兴趣的小伙伴可以跟随小编一起学习一... 目录前言功能特性核心功能界面特性系统要求安装说明使用指南基本操作流程高级功能技术实现核心技术栈关键函
阅读更多...
Java实现字节字符转bcd编码

Java实现字节字符转bcd编码

《Java实现字节字符转bcd编码》BCD是一种将十进制数字编码为二进制的表示方式,常用于数字显示和存储,本文将介绍如何在Java中实现字节字符转BCD码的过程,需要的小伙伴可以了解下... 目录前言BCD码是什么Java实现字节转bcd编码方法补充总结前言BCD码（Binary-Coded Decima
阅读更多...
SpringBoot全局域名替换的实现

SpringBoot全局域名替换的实现

《SpringBoot全局域名替换的实现》本文主要介绍了SpringBoot全局域名替换的实现,文中通过示例代码介绍的非常详细,对大家的学习或者工作具有一定的参考学习价值,需要的朋友们下面随着小编来一... 目录 项目结构⚙️ 配置文件application.yml️ 配置类AppProperties.Ja
阅读更多...

Copyright China编程 23002807@qq.com

沪ICP备2023033072号-2