项目中的底部浮层的弹出实现方案

1 在实际开放中，有类似如下的效果

的实现思路有2种
一种是 实用popupWindow 来实现，一种是实用 fragment
对于第一种方案的代码主要如下：

 HotelIconPopUpWindow popUpWindow = new HotelIconPopUpWindow(mFragment.getActivity(), mItemModelList);    popUpWindow.setAnchorView(mFragment.getActivity().getWindow().getDecorView());popUpWindow.showPopWindow();

这里我们将我门浮层的anchorView 设置为decorView

/** * @author bkhu */public class HotelIconPopUpWindow extends PopupWindow implements View.OnClickListener {    private View mDialogView;    private View mDropDownAnchorView;    private Context mContext;    private LinearLayout mIconContainer;    private TextView mCloseIconTv;    private ArrayList<IconItemModel> mItemIDList;    public HotelIconPopUpWindow(Context context, ArrayList<IconItemModel> itemIDList) {        mContext = context;        mItemIDList = itemIDList;        setContentView(createContentView());        setWidth(ViewGroup.LayoutParams.MATCH_PARENT);        setBackgroundDrawable(new ColorDrawable(Color.parseColor("#B3000000")));        setOutsideTouchable(true);        setFocusable(true);    }    public void setAnchorView(View anchor) {        mDropDownAnchorView = anchor;    }    private int getMarginValue() {        int screenHeight = DeviceUtil.getScreenHeight();        return Math.round(screenHeight * 0.38f);    }    private View createContentView() {        ViewGroup contentView = new FrameLayout(mContext);        contentView.setFocusable(true);        contentView.setFocusableInTouchMode(true);        mDialogView = LayoutInflater.from(mContext).inflate(R.layout.hotel_detail_icon_info_popupwindow_layout, null);        mIconContainer = (LinearLayout) mDialogView.findViewById(R.id.icon_container);        mCloseIconTv = (TextView) mDialogView.findViewById(R.id.close);        mCloseIconTv.setOnClickListener(this);        contentView.setOnClickListener(new View.OnClickListener() {            @Override            public void onClick(View v) {                dismiss();            }        });        FrameLayout.LayoutParams lp = new FrameLayout.LayoutParams(FrameLayout.LayoutParams.MATCH_PARENT, FrameLayout.LayoutParams.WRAP_CONTENT);        lp.gravity = Gravity.BOTTOM;        contentView.addView(mDialogView, lp);        int padding = getMarginValue();        contentView.setPadding(0, padding, 0, 0);        return contentView;    }    public void showPopWindow() {        if (mDropDownAnchorView == null || mDropDownAnchorView.getWindowToken() == null) return;        setWidth(ViewGroup.LayoutParams.MATCH_PARENT);        setHeight(ViewGroup.LayoutParams.MATCH_PARENT); setWindowLayoutMode(ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.MATCH_PARENT);        showAtLocation(mDropDownAnchorView, Gravity.BOTTOM, 0, 0);        mDialogView.setFocusable(true);        mDialogView.setFocusableInTouchMode(true);        loadAnimation(mDialogView, R.anim.common_hotel_popwindow_in, false);    }    @Override    public void dismiss() {        loadAnimation(mDialogView, R.anim.common_hotel_popwindow_out, true);    }    private void loadAnimation(View view, int resId, boolean isSetListener) {        Animation animation = AnimationUtils.loadAnimation(mContext, resId);        animation.setFillAfter(true);        if (isSetListener) {            animation.setAnimationListener(new EndAnimationListener());        }        view.startAnimation(animation);    }    @Override    public void onClick(View v) {        int id = v.getId();        if (id == R.id.close) {            dismiss();        }    }    private class EndAnimationListener implements Animation.AnimationListener {        @Override        public void onAnimationEnd(Animation animation) {            new Handler().post(new Runnable() {                @Override                public void run() {                    if (isShowing()) {                 HotelIconPopUpWindow.super.dismiss();                    }                }            });        }        @Override        public void onAnimationRepeat(Animation animation) {        }        @Override        public void onAnimationStart(Animation animation) {        }    }}

这里要注意的是，首先我门要给popUpWindow 设置背景，

  setBackgroundDrawable(new ColorDrawable(Color.parseColor("#B3000000")));  setOutsideTouchable(true);  setFocusable(true);

这里我们在弹起的时候会有相应的背景，注意这个背景一定要设置，如果不设置，点击背景的区域的点击消失的功能，将消失， setOutsideTouchable(true); 控制window 内容区域外的部分点击自动消失。
同时注意设置背景的宽高

setWidth(ViewGroup.LayoutParams.MATCH_PARENT);        setHeight(ViewGroup.LayoutParams.MATCH_PARENT); setWindowLayoutMode(ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.MATCH_PARENT);

第二种方案，即是实用fragment

 Bundle arguments = new Bundle();   arguments.putBoolean("isOversea",cacheBean.isOversea());        HotelFloatFacilitysFragment hotelFloatFacilitysFragment = new HotelFloatFacilitysFragment();        if(cacheBean.isOversea()){  hotelFloatFacilitysFragment.setOverseaContent(cacheBean.getHotelOverseaFloatFacilityTags());        }else{      hotelFloatFacilitysFragment.setInlandContent(cacheBean.getHotelInlandFloatFacilityTags());        }      hotelFloatFacilitysFragment.setTargetFragment(mFragment,0);     hotelFloatFacilitysFragment.setArguments(arguments);        FragmentManager fragmentManager = mFragment.getFragmentManager();        FragmentTransaction transaction = fragmentManager.beginTransaction(); transaction.setCustomAnimations(R.anim.common_hotel_popwindow_in_3,                R.anim.common_hotel_popwindow_out_3,                R.anim.common_hotel_popwindow_in_3,                R.anim.common_hotel_popwindow_out_3);        transaction.add(android.R.id.content,hotelFloatFacilitysFragment,"HotelFloatFacilitysFragment")  .addToBackStack("HotelFloatFacilitysFragment").commitAllowingStateLoss();