Android popupwidnow通用

https://www.jianshu.com/p/799dbb86f908

一个大大封装的就俩类

public class CommonPopupWindow extends PopupWindow {
    final PopupController controller;

    @Override
    public int getWidth() {
        return controller.mPopupView.getMeasuredWidth();
    }

    @Override
    public int getHeight() {
        return controller.mPopupView.getMeasuredHeight();
    }

    public interface ViewInterface {
        void getChildView(View view, int layoutResId);
    }

    private CommonPopupWindow(Context context) {
        controller = new PopupController(context, this);
    }

    @Override
    public void dismiss() {
        super.dismiss();
        controller.setBackGroundLevel(1.0f);
    }

    public static class Builder {
        private final PopupController.PopupParams params;
        private ViewInterface listener;

        public Builder(Context context) {
            params = new PopupController.PopupParams(context);
        }

        /**
         * @param layoutResId 设置PopupWindow 布局ID
         * @return Builder
         */
        public Builder setView(int layoutResId) {
            params.mView = null;
            params.layoutResId = layoutResId;
            return this;
        }

        /**
         * @param view 设置PopupWindow布局
         * @return Builder
         */
        public Builder setView(View view) {
            params.mView = view;
            params.layoutResId = 0;
            return this;
        }

        /**
         * 设置子View
         *
         * @param listener ViewInterface
         * @return Builder
         */
        public Builder setViewOnclickListener(ViewInterface listener) {
            this.listener = listener;
            return this;
        }

        /**
         * 设置宽度和高度 如果不设置 默认是wrap_content
         *
         * @param width 宽
         * @return Builder
         */
        public Builder setWidthAndHeight(int width, int height) {
            params.mWidth = width;
            params.mHeight = height;
            return this;
        }

        /**
         * 设置背景灰色程度
         *
         * @param level 0.0f-1.0f
         * @return Builder
         */
        public Builder setBackGroundLevel(float level) {
            params.isShowBg = true;
            params.bg_level = level;
            return this;
        }

        /**
         * 是否可点击Outside消失
         *
         * @param touchable 是否可点击
         * @return Builder
         */
        public Builder setOutsideTouchable(boolean touchable) {
            params.isTouchable = touchable;
            return this;
        }

        /**
         * 设置动画
         *
         * @return Builder
         */
        public Builder setAnimationStyle(int animationStyle) {
            params.isShowAnim = true;
            params.animationStyle = animationStyle;
            return this;
        }

        public CommonPopupWindow create() {
            final CommonPopupWindow popupWindow = new CommonPopupWindow(params.mContext);
            params.apply(popupWindow.controller);
            if (listener != null && params.layoutResId != 0) {
                listener.getChildView(popupWindow.controller.mPopupView, params.layoutResId);
            }
            measureWidthAndHeight(popupWindow.controller.mPopupView);
            return popupWindow;
        }
        /**
         * 测量View的宽高
         * @param view View
         */
        public  void measureWidthAndHeight(View view) {
            int widthMeasureSpec = View.MeasureSpec.makeMeasureSpec(0, View.MeasureSpec.UNSPECIFIED);
            int heightMeasureSpec = View.MeasureSpec.makeMeasureSpec(0, View.MeasureSpec.UNSPECIFIED);
            view.measure(widthMeasureSpec, heightMeasureSpec);
        }
    }


}

class PopupController {
    private int layoutResId;//布局id
    private Context context;
    private PopupWindow popupWindow;
    View mPopupView;//弹窗布局View
    private View mView;
    private Window mWindow;

    PopupController(Context context, PopupWindow popupWindow) {
        this.context = context;
        this.popupWindow = popupWindow;
    }

    public void setView(int layoutResId) {
        mView = null;
        this.layoutResId = layoutResId;
        installContent();
    }

    public void setView(View view) {
        mView = view;
        this.layoutResId = 0;
        installContent();
    }

    private void installContent() {
        if (layoutResId != 0) {
            mPopupView = LayoutInflater.from(context).inflate(layoutResId, null);
        } else if (mView != null) {
            mPopupView = mView;
        }
        popupWindow.setContentView(mPopupView);
    }

    /**
     * 设置宽度
     *
     * @param width  宽
     * @param height 高
     */
    private void setWidthAndHeight(int width, int height) {
        if (width == 0 || height == 0) {
            //如果没设置宽高，默认是WRAP_CONTENT
            popupWindow.setWidth(ViewGroup.LayoutParams.WRAP_CONTENT);
            popupWindow.setHeight(ViewGroup.LayoutParams.WRAP_CONTENT);
        } else {
            popupWindow.setWidth(width);
            popupWindow.setHeight(height);
        }
    }


    /**
     * 设置背景灰色程度
     *
     * @param level 0.0f-1.0f
     */
    void setBackGroundLevel(float level) {
        mWindow = ((Activity) context).getWindow();
        WindowManager.LayoutParams params = mWindow.getAttributes();
        params.alpha = level;
        mWindow.setAttributes(params);
    }


    /**
     * 设置动画
     */
    private void setAnimationStyle(int animationStyle) {
        popupWindow.setAnimationStyle(animationStyle);
    }

    /**
     * 设置Outside是否可点击
     *
     * @param touchable 是否可点击
     */
    private void setOutsideTouchable(boolean touchable) {
        popupWindow.setBackgroundDrawable(new ColorDrawable(0x00000000));//设置透明背景
        popupWindow.setOutsideTouchable(touchable);//设置outside可点击
        popupWindow.setFocusable(touchable);
    }


    static class PopupParams {
        public int layoutResId;//布局id
        public Context mContext;
        public int mWidth, mHeight;//弹窗的宽和高
        public boolean isShowBg, isShowAnim;
        public float bg_level;//屏幕背景灰色程度
        public int animationStyle;//动画Id
        public View mView;
        public boolean isTouchable = true;

        public PopupParams(Context mContext) {
            this.mContext = mContext;
        }

        public void apply(PopupController controller) {
            if (mView != null) {
                controller.setView(mView);
            } else if (layoutResId != 0) {
                controller.setView(layoutResId);
            } else {
                throw new IllegalArgumentException("PopupView's contentView is null");
            }
            controller.setWidthAndHeight(mWidth, mHeight);
            controller.setOutsideTouchable(isTouchable);//设置outside可点击
            if (isShowBg) {
                //设置背景
                controller.setBackGroundLevel(bg_level);
            }
            if (isShowAnim) {
                controller.setAnimationStyle(animationStyle);
            }
        }
    }
}

//弹出PopupWindow
                popupWindow = new CommonPopupWindow.Builder(this)
                        //设置PopupWindow布局
                        .setView(R.layout.popup)
                        //设置宽高
                        .setWidthAndHeight(ViewGroup.LayoutParams.MATCH_PARENT,
                                ViewGroup.LayoutParams.WRAP_CONTENT)
                        //设置动画
                        .setAnimationStyle(R.style.animafade)
                        //设置背景颜色，取值范围0.0f-1.0f 值越小越暗 1.0f为透明
                        .setBackGroundLevel(0.8f)
                        //设置PopupWindow里的子View及点击事件
                        .setViewOnclickListener(new CommonPopupWindow.ViewInterface() {
                            @Override
                            public void getChildView(View view, int layoutResId) {
                                TextView tv_child = (TextView) view.findViewById(R.id.tv_child);
                                tv_child.setText("我是子View");
                            }
                        })
                        //设置外部是否可点击 默认是true
                        .setOutsideTouchable(true)
                        //开始构建
                        .create();
                popupWindow.showAsDropDown(toolbar);

这个动画自己粘这里写反很酸爽

 <style name="animafade" parent="android:Animation">
        <item name="android:windowExitAnimation">@anim/fade_out</item>
        <item name="android:windowEnterAnimation">@anim/fade_in</item>
    </style>

fadein

<?xml version="1.0" encoding="utf-8"?>
<alpha xmlns:android="http://schemas.android.com/apk/res/android"
android:duration="300"
android:fromAlpha="0.0"
android:toAlpha="1.0" />

fadeout

<?xml version="1.0" encoding="utf-8"?>
<alpha xmlns:android="http://schemas.android.com/apk/res/android"
    android:duration="300"
    android:fromAlpha="1.0"
    android:toAlpha="0.0" />

https://github.com/crazyqiang/AndroidStudy/blob/master/app/src/main/java/org/ninetripods/mq/study/popup/PopupWindowActivity.java

控制上下左右弹出

右

popupWindow.showAsDropDown(view, view.getWidth(), -view.getHeight());

左

popupWindow.showAsDropDown(view, -popupWindow.getWidth(), -view.getHeight());

全屏

popupWindow.showAtLocation(findViewById(android.R.id.content), Gravity.BOTTOM, 0, 0);

上

popupWindow.showAsDropDown(view, 0, -(popupWindow.getHeight() + view.getMeasuredHeight()));

Android popupwidnow通用

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