弹出浮层基类 BaseFloating 封装

来源:互联网 发布:淘宝阿里巴巴男士秋装 编辑:程序博客网 时间:2024/05/21 06:18

之前在一个技术群里面有位同学请教大家这种弹出窗怎么做(如下图所示),他是用的PopWindow实现的,但是PopWindow有很多地方不符合他的要求,比如弹出的起始位置,弹出的动画效果。

这里写图片描述

我们项目中也会有这种弹出浮层的需求,举个例子,下面是仿淘宝选择规格的弹出浮层效果,不仅仅是这一处,整个项目中也会有很多类似的弹出浮层效果,为了方便,我们就需要有一个弹出浮层基类,来简化我们的代码。下面我就来介绍下我们项目的解决方案。

这里写图片描述

我们的实现思路是:将弹出浮层的View 独立封装,然后获取到这个View的实例,add 到我们需要显示的屏幕 decodeView 上,所以我们默认那个需要使用的页面 最外层使用的是 FramLayout (具体原因大家可以百度 FramLayout ,了解下它的属性),在add到屏幕上后,将 浮层View隐藏,在触发条件后再给View 配上相应的弹出动画显示。下面我们看下这个基类:

package com.example.jin.floating.view;import android.animation.Animator;import android.app.Activity;import android.content.Context;import android.content.Intent;import android.graphics.Color;import android.view.LayoutInflater;import android.view.View;import android.view.ViewGroup;import android.widget.FrameLayout;import android.widget.LinearLayout;import java.util.ArrayList;import java.util.List;/** * 浮层基类 *  */public abstract class BaseFloatinglayer {    protected Context mContext;    protected  int resourceId;//布局页面id    protected ViewGroup content, resource_View;    protected FrameLayout decorView;    protected LinearLayout background;    protected Intent intentData;    protected boolean click_background_close=true;    protected  boolean isInited=false;    protected  FloatingCallBack mFloatingCallBack;    protected boolean isAnimating=false;//动画正在执行    protected   boolean isShowed=false;//页面已经显示    protected List<Animator> mAnimatorList = new ArrayList<Animator>();    public BaseFloatinglayer(Context ctx, int ResourceId){        this.mContext=ctx;        this.resourceId =ResourceId;        InitView();    }    public abstract void openShow();//打开显示动画    public abstract  void closeHide();//关闭隐藏    public abstract  void findView(ViewGroup resource_View);//页面初始化成功返回布局Resource_View    public abstract  void hide();//初始化时隐藏    public abstract  void setIntentData(Intent intentData);//视图打开后获取数据    public void setmFloatingCallBack(FloatingCallBack mFloatingCallBack) {        this.mFloatingCallBack = mFloatingCallBack;    }    public boolean isShowed() {        return isShowed;    }    public View getView() {        return this.resource_View;    }    protected void InitView(){        LayoutInflater inflater = LayoutInflater.from(mContext);        decorView = (FrameLayout) ((ViewGroup)((Activity)mContext).getWindow().getDecorView().findViewById(android.R.id.content));//.getChildAt(0)        content = (ViewGroup) decorView.getChildAt(0);        resource_View = (ViewGroup) inflater.inflate(resourceId, null);        InitBackground();        findView(resource_View);        isInited=true;    }    /**     * 初始化背景层     */    protected void InitBackground(){        background=new LinearLayout(mContext);        background.setBackgroundColor(Color.BLACK);        background.setOrientation(LinearLayout.VERTICAL);        background.setVisibility(View.GONE);        background.setAlpha(0);        background.setLayoutParams(new LinearLayout.LayoutParams(LinearLayout.LayoutParams.MATCH_PARENT, LinearLayout.LayoutParams.MATCH_PARENT));        background.setOnClickListener(new View.OnClickListener() {            @Override            public void onClick(View view) {                if (click_background_close) {                    closeHide();                }            }        });    }    public View Background(){        return  this.background;    }    /**     * 添加到顶层     */    public void ViewAdd(){        if(decorView.findViewById(resourceId)==null){//如果当前页面没有则addView            decorView.addView(background);            decorView.addView(resource_View);        }    }    /**     * 添加到顶层     * @param VL     */    public void ViewAdd(ViewGroup.LayoutParams VL){        if(decorView.findViewById(resourceId)==null){//如果当前页面没有则addView            decorView.addView(background);            decorView.addView(resource_View,VL);        }    }    public void ViewAddMoBackgrond(ViewGroup.LayoutParams VL){        if(decorView.findViewById(resourceId)==null){//如果当前页面没有则addView            decorView.addView(resource_View,VL);        }    }    /**     * 添加到顶层     * @param childid     */    public void ViewAddToParent(int childid){        if(content.findViewById(resourceId)==null){//如果当前页面没有则addView            content.addView(background);            content.addView(resource_View);        }    }    /**     * 添加到指定索引     * @param childid     * @param VL     */    public void ViewAddToParent(int childid, ViewGroup.LayoutParams VL){        if(content.findViewById(resourceId)==null){//如果当前页面没有则addView            content.addView(background, childid, VL);            content.addView(resource_View, childid+1,VL);        }    }}

我们来看下主要实现代码部分:
1、获取到屏幕,以及传入的 浮层View 的 布局xml 文件id,其中resourceId就是传入的xml 文件id:

LayoutInflater inflater = LayoutInflater.from(mContext);decorView = (FrameLayout) ((ViewGroup)((Activity)mContext).getWindow().getDecorView().findViewById(android.R.id.content));//.getChildAt(0)content = (ViewGroup) decorView.getChildAt(0);resource_View = (ViewGroup) inflater.inflate(resourceId, null);

2、将实例化获取到的浮层View add 到屏幕上,这里我们封装了几个add方法,分别是默认添加到顶层; 添加到置顶索引位置; 同时添加阴影浮层(这个阴影浮层是夹在屏幕和浮层View之间的);根据传入的 LayoutParams 添加浮层,可以满足多种需求,如果有新的需求,也可以在其中添加相应方法。

public void ViewAdd(){    if(decorView.findViewById(resourceId)==null){//如果当前页面没有则addView        decorView.addView(background);        decorView.addView(resource_View);    }}/** * 添加到顶层 * @param childid */public void ViewAddToParent(int childid){    if(content.findViewById(resourceId)==null){//如果当前页面没有则addView        content.addView(background);        content.addView(resource_View);    }}/** * 添加到顶层 * @param VL */public void ViewAdd(ViewGroup.LayoutParams VL){    if(decorView.findViewById(resourceId)==null){//如果当前页面没有则addView        decorView.addView(background);        decorView.addView(resource_View,VL);    }}

3、 这里还封装了几个abstract 方法,对应弹出,隐藏,获取控件,接收传入数据等操作,以实现需要在浮层View进行一些进一步的操作:

public abstract void openShow();//打开显示动画public abstract  void closeHide();//关闭隐藏public abstract  void findView(ViewGroup resource_View);//页面初始化成功返回布局Resource_Viewpublic abstract  void hide();//初始化时隐藏public abstract  void setIntentData(Intent intentData);//视图打开后获取数据

4、 同时我们还封装了个回调接口,可以让我们接收到开始弹出,结束弹出,开始隐藏,结束隐藏的动作:

public interface FloatingCallBack {    void OpenStart();    void OpenEnd();    void CloseStart();    void CloseEnd();}

介绍了原理,我们来介绍下使用方法:新建类文件,继承基类,在 openShow 和 closeHide 方法中写你需要的弹出,隐藏动画(我这里只是举例了从下方弹出和收起到下方,也可以替换成上下左右4个方向的,任意都可以,看你的具体需求了),并且在Hide方法中将其影藏:

@Overridepublic void hide() {    resource_View.setTranslationY(DensityUtils.getHeight(mContext));    resource_View.setVisibility(View.GONE);    isAnimating=false;    isShowed=false;}

我们来看下已经写好了的 TestFloating:

package com.example.jin.floating.view;import android.animation.Animator;import android.animation.AnimatorSet;import android.animation.ObjectAnimator;import android.content.Context;import android.content.Intent;import android.view.View;import android.view.ViewGroup;import android.widget.RelativeLayout;import com.example.jin.floating.DensityUtils;import com.example.jin.floating.R;import java.util.Collections;/** * Created by Jin on 2016/8/11. * 用途 : */public class TestFloating extends BaseFloatinglayer {    private RelativeLayout touch_close;    public TestFloating(Context ctx, int ResourceId) {        super(ctx, ResourceId);    }    @Override    public void openShow() {        if(!isAnimating&&!isShowed){//            touch_to_close.setBackgroundResource(R.color.transparent);            isAnimating=true;            AnimatorSet m_AnimatorSet = new AnimatorSet();            resource_View.setVisibility(View.VISIBLE);            ObjectAnimator Resource_View_TRANSLATION_Y= ObjectAnimator.ofFloat(resource_View, View.TRANSLATION_Y, DensityUtils.getHeight(mContext),0 );            mAnimatorList.clear();            Collections.addAll(mAnimatorList, Resource_View_TRANSLATION_Y);            m_AnimatorSet.playTogether(mAnimatorList);            m_AnimatorSet.setDuration(300);            m_AnimatorSet.start();            m_AnimatorSet.addListener(new Animator.AnimatorListener() {                @Override                public void onAnimationStart(Animator animation) {                    if(mFloatingCallBack!=null){                        mFloatingCallBack.OpenStart();                    }                }                @Override                public void onAnimationEnd(Animator animation) {                    if(mFloatingCallBack!=null){                        mFloatingCallBack.OpenEnd();                    }                    isAnimating=false;                    isShowed=true;//                    touch_to_close.setBackgroundResource(R.color.back_ground_transpant);                }                @Override                public void onAnimationCancel(Animator animation) {                    if(mFloatingCallBack!=null){                        mFloatingCallBack.OpenEnd();                    }                    isAnimating=false;                }                @Override                public void onAnimationRepeat(Animator animation) {                }            });        }    }    @Override    public void closeHide() {        if(!isAnimating&&isShowed) {//            touch_to_close.setBackgroundResource(R.color.transparent);            isAnimating=true;            isShowed=false;            AnimatorSet m_AnimatorSet = new AnimatorSet();            ObjectAnimator Resource_View_TRANSLATION_Y = ObjectAnimator.ofFloat(resource_View, View.TRANSLATION_Y, 0,DensityUtils.getHeight(mContext));            mAnimatorList.clear();            Collections.addAll(mAnimatorList, Resource_View_TRANSLATION_Y);            m_AnimatorSet.playTogether(mAnimatorList);            m_AnimatorSet.setDuration(300);            m_AnimatorSet.start();            m_AnimatorSet.addListener(new Animator.AnimatorListener() {                @Override                public void onAnimationStart(Animator animation) {                    if(mFloatingCallBack!=null){                        mFloatingCallBack.CloseStart();                    }                }                @Override                public void onAnimationEnd(Animator animation) {                    resource_View.setVisibility(View.GONE);                    isAnimating=false;                    if(mFloatingCallBack!=null){                        mFloatingCallBack.CloseEnd();                    }                }                @Override                public void onAnimationCancel(Animator animation) {                }                @Override                public void onAnimationRepeat(Animator animation) {                }            });        }    }    @Override    public void findView(ViewGroup resource_View) {        touch_close= (RelativeLayout) resource_View.findViewById(R.id.touch_close);        touch_close.setOnClickListener(new View.OnClickListener() {            @Override            public void onClick(View v) {                closeHide();            }        });    }    @Override    public void hide() {        resource_View.setTranslationY(DensityUtils.getHeight(mContext));        resource_View.setVisibility(View.GONE);        isAnimating=false;        isShowed=false;    }    @Override    public void setIntentData(Intent intentData) {    }}

剩下的就是在我们的Activity中调用,先实例化:

private void initFloating() {    testFloating=new TestFloating(this,R.layout.floating_layout);    FrameLayout.LayoutParams couponsFloatingFL = new FrameLayout.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.MATCH_PARENT);    testFloating.ViewAddMoBackgrond(couponsFloatingFL);    testFloating.hide();}

在需要触发的地方调用 openShow方法就可以了:

testFloating.openShow();

我们来看一下效果:

这里写图片描述

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