先上Android仿微博菜单弹出效果图，这个截图不是很流畅，大家可以下载apk试一下。

说一下实现思路：

1、截取当前窗口，对图片做高斯模糊处理，将处理后的图片做popupwindow的背景图片；
2、创建popupwindow，完成布局，这儿要注意：View的移动范围是由parent的大小决定的，就是只能在parent的范围内移动；
3、给买个View添加进入动画，每个比前一个延期50ms播放动画，关闭窗口时相反；
4、为View的动画添加回弹插值器；

MoreWindow.java窗口

package com.jerome.weibo; import android.animation.Animator; import android.animation.Animator.AnimatorListener; import android.animation.ObjectAnimator; import android.animation.ValueAnimator; import android.app.Activity; import android.graphics.Bitmap; import android.graphics.Canvas; import android.graphics.Paint; import android.graphics.Rect; import android.graphics.drawable.BitmapDrawable; import android.os.Handler; import android.util.DisplayMetrics; import android.util.Log; import android.view.Gravity; import android.view.LayoutInflater; import android.view.View; import android.view.View.OnClickListener; import android.view.ViewGroup; import android.view.animation.Animation; import android.view.animation.Animation.AnimationListener; import android.view.animation.AnimationSet; import android.view.animation.TranslateAnimation; import android.widget.ImageView; import android.widget.PopupWindow; import android.widget.RelativeLayout; import android.widget.RelativeLayout.LayoutParams; public class MoreWindow extends PopupWindow implements OnClickListener{ private String TAG = MoreWindow.class.getSimpleName(); Activity mContext; private int mWidth; private int mHeight; private int statusBarHeight ; private Bitmap mBitmap= null; private Bitmap overlay = null; private Handler mHandler = new Handler(); public MoreWindow(Activity context) { mContext = context; } public void init() { Rect frame = new Rect(); mContext.getWindow().getDecorView().getWindowVisibleDisplayFrame(frame); statusBarHeight = frame.top; DisplayMetrics metrics = new DisplayMetrics(); mContext.getWindowManager().getDefaultDisplay() .getMetrics(metrics); mWidth = metrics.widthPixels; mHeight = metrics.heightPixels; setWidth(mWidth); setHeight(mHeight); } private Bitmap blur() { if (null != overlay) { return overlay; } long startMs = System.currentTimeMillis(); View view = mContext.getWindow().getDecorView(); view.setDrawingCacheEnabled(true); view.buildDrawingCache(true); mBitmap = view.getDrawingCache(); float scaleFactor = 8;//图片缩放比例； float radius = 10;//模糊程度 int width = mBitmap.getWidth(); int height = mBitmap.getHeight(); overlay = Bitmap.createBitmap((int) (width / scaleFactor),(int) (height / scaleFactor),Bitmap.Config.ARGB_8888); Canvas canvas = new Canvas(overlay); canvas.scale(1 / scaleFactor, 1 / scaleFactor); Paint paint = new Paint(); paint.setFlags(Paint.FILTER_BITMAP_FLAG); canvas.drawBitmap(mBitmap, 0, 0, paint); overlay = FastBlur.doBlur(overlay, (int) radius, true); Log.i(TAG, "blur time is:"+(System.currentTimeMillis() - startMs)); return overlay; } private Animation showAnimation1(final View view,int fromY ,int toY) { AnimationSet set = new AnimationSet(true); TranslateAnimation go = new TranslateAnimation(0, 0, fromY, toY); go.setDuration(300); TranslateAnimation go1 = new TranslateAnimation(0, 0, -10, 2); go1.setDuration(100); go1.setStartOffset(250); set.addAnimation(go1); set.addAnimation(go); set.setAnimationListener(new AnimationListener() { @Override public void onAnimationEnd(Animation animation) { } @Override public void onAnimationRepeat(Animation animation) { } @Override public void onAnimationStart(Animation animation) { } }); return set; } public void showMoreWindow(View anchor,int bottomMargin) { final RelativeLayout layout = (RelativeLayout)LayoutInflater.from(mContext).inflate(R.layout.center_music_more_window, null); setContentView(layout); ImageView close= (ImageView)layout.findViewById(R.id.center_music_window_close); android.widget.RelativeLayout.LayoutParams params =new android.widget.RelativeLayout.LayoutParams(LayoutParams.WRAP_CONTENT,LayoutParams.WRAP_CONTENT); params.bottomMargin = bottomMargin; params.addRule(RelativeLayout.BELOW, R.id.more_window_auto); params.addRule(RelativeLayout.RIGHT_OF, R.id.more_window_collect); params.topMargin = 200; params.leftMargin = 18; close.setLayoutParams(params); close.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { if (isShowing()) { closeAnimation(layout); } } }); showAnimation(layout); setBackgroundDrawable(new BitmapDrawable(mContext.getResources(), blur())); setOutsideTouchable(true); setFocusable(true); showAtLocation(anchor, Gravity.BOTTOM, 0, statusBarHeight); } private void showAnimation(ViewGroup layout){ for(int i=0;i<layout.getChildCount();i++){ final View child = layout.getChildAt(i); if(child.getId() == R.id.center_music_window_close){ continue; } child.setOnClickListener(this); child.setVisibility(View.INVISIBLE); mHandler.postDelayed(new Runnable() { @Override public void run() { child.setVisibility(View.VISIBLE); ValueAnimator fadeAnim = ObjectAnimator.ofFloat(child, "translationY", 600, 0); fadeAnim.setDuration(300); KickBackAnimator kickAnimator = new KickBackAnimator(); kickAnimator.setDuration(150); fadeAnim.setEvaluator(kickAnimator); fadeAnim.start(); } }, i * 50); } } private void closeAnimation(ViewGroup layout){ for(int i=0;i<layout.getChildCount();i++){ final View child = layout.getChildAt(i); if(child.getId() == R.id.center_music_window_close){ continue; } child.setOnClickListener(this); mHandler.postDelayed(new Runnable() { @Override public void run() { child.setVisibility(View.VISIBLE); ValueAnimator fadeAnim = ObjectAnimator.ofFloat(child, "translationY", 0, 600); fadeAnim.setDuration(200); KickBackAnimator kickAnimator = new KickBackAnimator(); kickAnimator.setDuration(100); fadeAnim.setEvaluator(kickAnimator); fadeAnim.start(); fadeAnim.addListener(new AnimatorListener() { @Override public void onAnimationStart(Animator animation) { // TODO Auto-generated method stub } @Override public void onAnimationRepeat(Animator animation) { // TODO Auto-generated method stub } @Override public void onAnimationEnd(Animator animation) { child.setVisibility(View.INVISIBLE); } @Override public void onAnimationCancel(Animator animation) { // TODO Auto-generated method stub } }); } }, (layout.getChildCount()-i-1) * 30); if(child.getId() == R.id.more_window_local){ mHandler.postDelayed(new Runnable() { @Override public void run() { dismiss(); } }, (layout.getChildCount()-i) * 30 + 80); } } } @Override public void onClick(View v) { switch (v.getId()) { case R.id.more_window_local: break; case R.id.more_window_online: break; case R.id.more_window_delete: break; case R.id.more_window_collect: break; case R.id.more_window_auto: break; case R.id.more_window_external: break; default: break; } } public void destroy() { if (null != overlay) { overlay.recycle(); overlay = null; System.gc(); } if (null != mBitmap) { mBitmap.recycle(); mBitmap = null; System.gc(); } } }

KickBackAnimator.Java回弹效果：

package com.jerome.weibo; import android.animation.TypeEvaluator; public class KickBackAnimator implements TypeEvaluator<Float> { private final float s = 1.70158f; float mDuration = 0f; public void setDuration(float duration) { mDuration = duration; } public Float evaluate(float fraction, Float startValue, Float endValue) { float t = mDuration * fraction; float b = startValue.floatValue(); float c = endValue.floatValue() - startValue.floatValue(); float d = mDuration; float result = calculate(t, b, c, d); return result; } public Float calculate(float t, float b, float c, float d) { return c * ((t = t / d - 1) * t * ((s + 1) * t + s) + 1) + b; } }

代码见github： https://github.com/gqdy365/WeiboPopupWindow

请大家star一下，我后面会持续更新；

下面是apk下载地址：WeiboPopupWindow

以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持。