一个值得收藏的popupWindow

不需要任何其他工具，就是一个类

package com.example.zhouwei.library;import android.content.Context;import android.graphics.Color;import android.graphics.drawable.ColorDrawable;import android.os.Build;import android.support.annotation.RequiresApi;import android.view.LayoutInflater;import android.view.View;import android.view.ViewGroup;import android.widget.PopupWindow;/** * * 自定义PopWindow类，封装了PopWindow的一些常用属性，用Builder模式支持链式调用 * Created by zhouwei on 16/11/28. */public class CustomPopWindow {    private Context mContext;    private int mWidth;    private int mHeight;    private boolean mIsFocusable = true;    private boolean mIsOutside = true;    private int mResLayoutId = -1;    private View mContentView;    private PopupWindow mPopupWindow;    private int mAnimationStyle = -1;    private boolean mClippEnable = true;//default is true    private boolean mIgnoreCheekPress = false;    private int mInputMode = -1;    private PopupWindow.OnDismissListener mOnDismissListener;    private int mSoftInputMode = -1;    private boolean mTouchable = true;//default is ture    private View.OnTouchListener mOnTouchListener;    private CustomPopWindow(Context context){        mContext = context;    }    public int getWidth() {        return mWidth;    }    public int getHeight() {        return mHeight;    }    /**     *     * @param anchor     * @param xOff     * @param yOff     * @return     */    public CustomPopWindow showAsDropDown(View anchor, int xOff, int yOff){        if(mPopupWindow!=null){            mPopupWindow.showAsDropDown(anchor,xOff,yOff);        }        return this;    }    public CustomPopWindow showAsDropDown(View anchor){        if(mPopupWindow!=null){            mPopupWindow.showAsDropDown(anchor);        }        return this;    }    @RequiresApi(api = Build.VERSION_CODES.KITKAT)    public CustomPopWindow showAsDropDown(View anchor, int xOff, int yOff, int gravity){        if(mPopupWindow!=null){            mPopupWindow.showAsDropDown(anchor,xOff,yOff,gravity);        }        return this;    }    /**     * 相对于父控件的位置（通过设置Gravity.CENTER，下方Gravity.BOTTOM等 ），可以设置具体位置坐标     * @param parent 父控件     * @param gravity     * @param x the popup's x location offset     * @param y the popup's y location offset     * @return     */    public CustomPopWindow showAtLocation(View parent, int gravity, int x, int y){        if(mPopupWindow!=null){            mPopupWindow.showAtLocation(parent,gravity,x,y);        }        return this;    }    /**     * 添加一些属性设置     * @param popupWindow     */    private void apply(PopupWindow popupWindow){        popupWindow.setClippingEnabled(mClippEnable);        if(mIgnoreCheekPress){            popupWindow.setIgnoreCheekPress();        }        if(mInputMode!=-1){            popupWindow.setInputMethodMode(mInputMode);        }        if(mSoftInputMode!=-1){            popupWindow.setSoftInputMode(mSoftInputMode);        }        if(mOnDismissListener!=null){            popupWindow.setOnDismissListener(mOnDismissListener);        }        if(mOnTouchListener!=null){            popupWindow.setTouchInterceptor(mOnTouchListener);        }        popupWindow.setTouchable(mTouchable);    }    private PopupWindow build(){        if(mContentView == null){            mContentView = LayoutInflater.from(mContext).inflate(mResLayoutId,null);        }        if(mWidth != 0 && mHeight!=0 ){            mPopupWindow = new PopupWindow(mContentView,mWidth,mHeight);        }else{            mPopupWindow = new PopupWindow(mContentView, ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.WRAP_CONTENT);        }        if(mAnimationStyle!=-1){            mPopupWindow.setAnimationStyle(mAnimationStyle);        }        apply(mPopupWindow);//设置一些属性        mPopupWindow.setFocusable(mIsFocusable);        mPopupWindow.setBackgroundDrawable(new ColorDrawable(Color.TRANSPARENT));        mPopupWindow.setOutsideTouchable(mIsOutside);        if(mWidth == 0 || mHeight == 0){            mPopupWindow.getContentView().measure(View.MeasureSpec.UNSPECIFIED, View.MeasureSpec.UNSPECIFIED);            //如果外面没有设置宽高的情况下，计算宽高并赋值            mWidth = mPopupWindow.getContentView().getMeasuredWidth();            mHeight = mPopupWindow.getContentView().getMeasuredHeight();        }        mPopupWindow.update();        return mPopupWindow;    }    /**     * 关闭popWindow     */    public void dissmiss(){        if(mPopupWindow!=null){            mPopupWindow.dismiss();        }    }    public static class PopupWindowBuilder{        private CustomPopWindow mCustomPopWindow;        public PopupWindowBuilder(Context context){            mCustomPopWindow = new CustomPopWindow(context);        }        public PopupWindowBuilder size(int width,int height){            mCustomPopWindow.mWidth = width;            mCustomPopWindow.mHeight = height;            return this;        }        public PopupWindowBuilder setFocusable(boolean focusable){            mCustomPopWindow.mIsFocusable = focusable;            return this;        }        public PopupWindowBuilder setView(int resLayoutId){            mCustomPopWindow.mResLayoutId = resLayoutId;            mCustomPopWindow.mContentView = null;            return this;        }        public PopupWindowBuilder setView(View view){            mCustomPopWindow.mContentView = view;            mCustomPopWindow.mResLayoutId = -1;            return this;        }        public PopupWindowBuilder setOutsideTouchable(boolean outsideTouchable){            mCustomPopWindow.mIsOutside = outsideTouchable;            return this;        }        /**         * 设置弹窗动画         * @param animationStyle         * @return         */        public PopupWindowBuilder setAnimationStyle(int animationStyle){            mCustomPopWindow.mAnimationStyle = animationStyle;            return this;        }        public PopupWindowBuilder setClippingEnable(boolean enable){            mCustomPopWindow.mClippEnable =enable;            return this;        }        public PopupWindowBuilder setIgnoreCheekPress(boolean ignoreCheekPress){            mCustomPopWindow.mIgnoreCheekPress = ignoreCheekPress;            return this;        }        public PopupWindowBuilder setInputMethodMode(int mode){            mCustomPopWindow.mInputMode = mode;            return this;        }        public PopupWindowBuilder setOnDissmissListener(PopupWindow.OnDismissListener onDissmissListener){            mCustomPopWindow.mOnDismissListener = onDissmissListener;            return this;        }        public PopupWindowBuilder setSoftInputMode(int softInputMode){            mCustomPopWindow.mSoftInputMode = softInputMode;            return this;        }        public PopupWindowBuilder setTouchable(boolean touchable){            mCustomPopWindow.mTouchable = touchable;            return this;        }        public PopupWindowBuilder setTouchIntercepter(View.OnTouchListener touchIntercepter){            mCustomPopWindow.mOnTouchListener = touchIntercepter;            return this;        }        public CustomPopWindow create(){            //构建PopWindow            mCustomPopWindow.build();            return mCustomPopWindow;        }    }}

创建popupWindow,下方显示，没Button1为按钮空间

private void showPopBottom(){    CustomPopWindow popWindow = new CustomPopWindow.PopupWindowBuilder(this)            .setView(R.layout.pop_layout1)            .setFocusable(true)            .setOutsideTouchable(true)            .create()            .showAsDropDown(mButton1,0,10);}

创建上方显示，通过天正第二个参数可以改变window横向的位置

private void showPopTop(){  CustomPopWindow popWindow = new CustomPopWindow.PopupWindowBuilder(this)          .setView(R.layout.pop_layout2)          .create();    System.out.println("--------从上方显示");  popWindow .showAsDropDown(mButton2,150,  - (mButton2.getHeight() + popWindow.getHeight()));}

setView的方法中还可一直接添加一个inflate之后的View