Android实现底部半透明弹出框PopUpWindow

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Android底部半透明弹出框PopUpWindow
layout布局：
<?xml version="1.0" encoding="utf-8"?><RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"    android:layout_width="match_parent"    android:layout_height="wrap_content"    android:background="#66fafafa"    android:orientation="vertical">    <LinearLayout        android:layout_width="match_parent"        android:layout_height="122dp"        android:id="@+id/ll_popupwindow"        android:background="#ffffff"        android:layout_alignParentBottom="true"        android:orientation="vertical"        >    <LinearLayout        android:layout_width="match_parent"        android:layout_height="wrap_content"        android:layout_marginTop="26dp"        android:orientation="horizontal">        <TextView            android:layout_width="0dp"            android:layout_height="wrap_content"            android:layout_weight="1"            android:id="@+id/popwindow_facebook"            android:drawableTop="@mipmap/gif_more_facebook"            android:drawablePadding="12dp"            android:gravity="center"            android:text="Facebook"            android:textColor="#4d4d4d"            android:textSize="12sp" />        <TextView            android:layout_width="0dp"            android:layout_height="wrap_content"            android:layout_weight="1"            android:id="@+id/popwindow_whatsapp"            android:drawableTop="@mipmap/gif_more_whatsapp"            android:drawablePadding="12dp"            android:gravity="center"            android:text="WhatsApp"            android:visibility="gone"            android:textColor="#4d4d4d"            android:textSize="12sp" />        <TextView            android:layout_width="0dp"            android:layout_height="wrap_content"            android:layout_weight="1"            android:id="@+id/popwindow_report"            android:drawableTop="@mipmap/gif_more_report"            android:drawablePadding="12dp"            android:gravity="center"            android:text="Report"            android:textColor="#4d4d4d"            android:textSize="12sp" />    </LinearLayout>    </LinearLayout>    </RelativeLayout>
布局示意：


代码部分：
/*    * 在当前页面调用initPopUpWindow方法，底部弹出popUpWindow    * 在popUpWindow的layout最外层布局设置android:background="#66fafafa" 半透明    * */    private void initPopUpWindow(View root, final String uuid, final String title){        Log.d("click","init popopop");        //inflate得到布局 ，底部弹出框的View        final View popView = LayoutInflater.from(mContext).inflate(                R.layout.layout_bottom_popwindow, null);        View rootView = root; // 当前页面的根布局        //创建popUpWindow对象 宽高占满页面        final PopupWindow popupWindow = new PopupWindow(popView,                WindowManager.LayoutParams.MATCH_PARENT, WindowManager.LayoutParams.MATCH_PARENT);        popupWindow.setTouchable(true);        // 设置弹出动画        popupWindow.setAnimationStyle(R.style.anim_edit_text_popup);        // 显示在根布局的底部        popupWindow.showAtLocation(rootView, Gravity.BOTTOM | Gravity.LEFT, 0,                0);        //点击底部弹出框之外的部分让popUpWindow 消失        popView.setOnTouchListener(new View.OnTouchListener() {            @Override            public boolean onTouch(View v, MotionEvent event) {                int height = popView.findViewById(R.id.ll_popupwindow).getTop();                int y=(int) event.getY();                if(event.getAction()==MotionEvent.ACTION_UP){                    if(y<height){                        popupWindow.dismiss();                    }                }                return true;            }        });        //弹出框中控件的点击事件        TextView share_facebook= (TextView) popView.findViewById(R.id.popwindow_facebook);        share_facebook.setOnClickListener(new View.OnClickListener() {            @Override            public void onClick(View v) {                share_facebook(uuid,title);                popupWindow.dismiss();            }        });        final TextView share_whatsApp= (TextView) popView.findViewById(R.id.popwindow_whatsapp);        boolean whatsappFound = CheckUtils.isAppInstalled(mContext, "com.whatsapp");        if (whatsappFound) {            share_whatsApp.setVisibility(View.VISIBLE);            share_whatsApp.setOnClickListener(new View.OnClickListener() {                @Override                public void onClick(View v) {                    share_whatsapp(uuid,title);                }            });        }        TextView report= (TextView) popView.findViewById(R.id.popwindow_report);        report.setOnClickListener(new View.OnClickListener() {            @Override            public void onClick(View v) {                Intent intent = new Intent(mContext, ReportActivity.class);                intent.putExtra("fromch", true);                intent.putExtra("tid", uuid);                mContext.startActivity(intent);                popupWindow.dismiss();            }        });    }


动画部分：
<style name="anim_edit_text_popup">        <item name="android:windowEnterAnimation">@anim/popup_in</item>        <item name="android:windowExitAnimation">@anim/popup_out</item></style>


进入时从最下方弹出到最上方
<?xml version="1.0" encoding="utf-8"?><set xmlns:android="http://schemas.android.com/apk/res/android" >    <translate        android:duration="100"        android:fromYDelta="100.0%"        android:toYDelta="0.0" /></set>
消失时从最上方向下移动直到隐藏
<?xml version="1.0" encoding="utf-8"?><set xmlns:android="http://schemas.android.com/apk/res/android" ><translate    android:duration="100"    android:fromYDelta="0.0"    android:toYDelta="100%" /></set>
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