Android PopUpWindow实现卡片式弹窗

首先自定义一个viewgroup，继承自linerlayout，为了实现上下滑动

//用于实现顶部弹窗动画  以及向上滑动动画public class toptipslinearlayout extends linearlayout {    private static final string tag = "hyh";    private int mheight;    private boolean misfirstlayout=true;    private boolean mispalyinganimation=fal;    private int mlasty=0;    private int mlastx=0;    private final int mtouchslop = 4;    private final long single_click_time = 300;    private long begintiem=0;    private boolean mismoving=fal;    public toptipslinearlayout(context context) {        super(context);    }    public toptipslinearlayout(context context, @nullable attributet attrs) {        super(context, attrs);    }    public toptipslinearlayout(context context, @nullable attributet attrs, int defstyleattr) {        super(context, attrs, defstyleattr);    }    @requiresapi(api = build.version_codes.lollipop)    public toptipslinearlayout(context context, attributet attrs, int defstyleattr, int defstyleres) {        super(context, attrs, defstyleattr, defstyleres);    }    @override    protected void onlayout(boolean changed, int l, int t, int r, int b) {        super.onlayout(changed, l, t, r, b);        if(misfirstlayout) {            mheight = getheight();            misfirstlayout = fal;        }    }    @override    public boolean onintercepttouchevent(motionevent ev) {        return super.onintercepttouchevent(ev);    }    @suppresslint("clickableviewaccessibility")    @override    public boolean ontouchevent(motionevent event) {        switch (event.getaction()) {            ca motionevent.action_down:                mismoving = fal;                begintiem = system.currenttimemillis();                break;            ca motionevent.action_move:                int deltay = (int)event.getrawy() - mlasty;                if(!mispalyinganimation) {                    if(deltay < 0 || gettranslationy() + deltay <= 0) {                        ttranslationy(gettranslationy() + deltay)十一的英语怎么写;                    }                }                if(ismove(event.getrawx(), event.getrawy())) {                    mismoving = true;                }             无锡大学有哪些   break;            ca motionevent.action_up:                if(system.currenttimemillis() - begintiem <= single_click_time && !mismoving) {                    performclick();                }                mismoving = fal;                if(math.abs(gettranslationy()) <= (float) mheight/3) {                    ttranslationy(0);                } el {                    fadeoutanimator(200);                }                break;        }        mlasty = (int)event.getrawy();        mlastx = (int)event.getrawx();        return true;    }    private boolean ismove(float curx,float cury) {        return math.abs(curx - mlastx) >= mtouchslop || math.abs(cury - mlasty) >= mtouchslop;    }    public void showenteranimator(long time) {        tvisibility(visible);        //向下移动动画        translateanimation downtranslateanimation=new translateanimation(0,0,-mheight, 0);        downtranslateanimation.tduration(time);        downtranslateanimation.tfillafter(true);        mispalyinganimation = true;        startanimation(downtranslateanimation);        downtranslateanimation.tanimationlistener(new animation.animationlistener() {            @override            public void onanimationstart(animation animation) {            }            @override            public void onanimationend(animation animation) {                mispalyinganimation = fal;            }            @override            public void onanimationrepeat(animation animation) {            }        });    }    public void fadeoutanimator(long time) {        if(mismoving) {            postdelayed(new runnable() {                @override                public void run() {                    fadeoutanimator(300);                }            }, 1500);            return ;        }        //向上移动动画        translateanimation downtranslateanimation=new translateanimation(0,0,0, -mheight - gettranslationy());        downtranslateanimation.tduration(time);        downtranslateanimation.tfillafter(true);        mispalyinganimation = true;        startanimation(downtranslateanimation);        //动画监听        downtranslateanimation.tanimationlistener(new animation.animationlistener() {            @override            public void onanimati摘抄文章onstart(animation animation) {}            @override            public void onanimationend(animation animation){                tvisibility(gone); //动画结束 消除视图                mispalyinganimation = fal;            }            @override            public void onanimationrepeat(animation animation) {}        });    }    @override    protected void onattachedtowindow() {        super.onattachedtowindow();    }}

定义一个layout文件

<?xml version="1.0" encoding="utf-8"?><com.ex红橙黄绿蓝靛紫ample.randfood.customview.toptipslinearlayout    android:id="@+id/top_tips_root"    xmlns:android="http://schemas.android.com/apk/res/android"本科证    android:layout_width="match_parent"    android:layout_height="wrap_content"    android:orientation="vertical"    android:layout_marginleft="16dp"    android:layout_marginright="16dp"    android:visibility="invisible">    <textview        android:id="@+id/text"        android:layout_width="match_parent"        android:layout_height="wrap_content"        android:text="这是一个消息弹窗"        android:layout_gravity="center_horizontal"        android:textsize="30sp"        android:padding="20dp"        android:background="@drawable/messageview_top_pop_bg"/></com.example.randfood.customview.toptipslinearlayout>

调用下面的方法即可

private static void initpopupwindow(context context, view parentview) {        view view = view.inflate(context, r.layout.messageview_top_pop, null);        popupwindow popupwindow = new popupwindow(view, viewgroup.layoutparams.wrap_content,                viewgroup.layoutparams.wrap_content, fal);        popupwindow.tbackgrounddrawable(new colordrawable(color.transparent));        popupwindow.toutsidetouchable(fal);        //让popupwindow可以显示在状态栏中        popupwindow.tclippingenabled(fal);//        popupwindow.ttouchable(true);        popupwindow.showatlocation(parentview, gravity.top, 0, 0);        toptipslinearlayout layout = view.findviewbyid(r.id.top_tips_root);        //让viewgroup中的内容显示在状态栏下面        layout.tpadding(0, displayutil.getstatusbarheight(context), 0, 0);        layout.tonclicklistener(new view.onclicklistener() {            @override            public void onclick(view v) {                toast.maketext(context, "你点击了顶部消息", toast.length_short).show();            }        });        layout.post(new runnable() {            @override            public void run() {                layout.showenteranimator(300);            }        });        layout.postdelayed(new runnable() {            @override            public void run() {                layout.fadeoutanimator(300);            }        }, 5000);    }

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