PopupWindow 封装详解

话不多说，直接上代码：

普通写法

public AddAddressBookPop(Context context) { super(context); view = LayoutInflater.from(context).inflate(R.layout.addressbook_add,null); this.setContentView(view); ButterKnife.inject(this,view); // view.setLayoutParams(new ViewGroup.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.WRAP_CONTENT)); this.setWidth(ViewGroup.LayoutParams.MATCH_PARENT); this.setHeight(ViewGroup.LayoutParams.WRAP_CONTENT); //设置可点击 this.setFocusable(true); this.setOutsideTouchable(true); //实例个半透明的颜色 ColorDrawable colorDrawable = new ColorDrawable(0xb0000000); //点back键和其他地方使其消息，设置这个才能触发ondismisslistener,设置其他空间变化等 this.setBackgroundDrawable(colorDrawable); //设置动画效果 // this.setAnimationStyle(android.R.style.Animation_Dialog); this.setAnimationStyle(R.style.addbooks_style); //设置背景变暗 WindowManager.LayoutParams layoutParams = ((Activity)context).getWindow().getAttributes(); layoutParams.alpha = 0.5f; ((Activity)context).getWindow().setAttributes(layoutParams); } public void showPopupWindow(View parent){ if (!this.isShowing()){ // this.showAsDropDown(parent,0,0); this.showAtLocation(parent, Gravity.CENTER,0,0); }else { this.dismiss(); } }动画代码

<?xml version="1.0" encoding="utf-8"?> <set xmlns:android="http://schemas.android.com/apk/res/android" android:duration="500"> <translate android:fromXDelta="-100%" android:toXDelta="0" android:fromYDelta="0" android:toYDelta="0" /> <alpha android:fromAlpha="0" android:toAlpha="1.0"></alpha> </set> <?xml version="1.0" encoding="utf-8"?> <set xmlns:android="http://schemas.android.com/apk/res/android" android:duration="500"> <translate android:fromXDelta="0" android:toXDelta="-100%" android:fromYDelta="0" android:toYDelta="0" /> <alpha android:fromAlpha="1.0" android:toAlpha="0"></alpha> </set>

封装之后的两个类

第一个Popup类，第二个Util类，直接上代码：

package com.yz.demo.mykotlin; import android.content.Context; import android.view.View; import android.widget.PopupWindow; /** * Created by Administrator on 2017/6/16. */ 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); } CommonUtil.measureWidthAndHeight(popupWindow.controller.mPopupView); return popupWindow; } } }

package com.yz.demo.mykotlin; import android.app.Activity; import android.content.Context; import android.graphics.drawable.ColorDrawable; import android.view.LayoutInflater; import android.view.View; import android.view.ViewGroup; import android.view.Window; import android.view.WindowManager; import android.widget.PopupWindow; /** * Created by Administrator on 2017/6/16. */ public 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); } } } } public class CommonUtil { /** * 测量View的宽高 * * @param view View */ public static void measureWidthAndHeight(View view) { int w = View.MeasureSpec.makeMeasureSpec(0, View.MeasureSpec.UNSPECIFIED); int h = View.MeasureSpec.makeMeasureSpec(0, View.MeasureSpec.UNSPECIFIED); view.measure(w, h); } } 调用方式：

View upView = LayoutInflater.from(this).inflate(R.layout.mypopup, null); cancel = (Button) upView.findViewById(R.id.cancel); cancel.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View view) { commonPopupWindow.dismiss(); } }); commonPopupWindow = new CommonPopupWindow.Builder(this) .setView(upView) .setAnimationStyle(R.style.toleft) .setBackGroundLevel(0.5f) .setWidthAndHeight(ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.WRAP_CONTENT) .create(); commonPopupWindow.showAtLocation(lin1,Gravity.CENTER,0,0); }