本文实例讲述了Android编程实现仿易信精美弹出框效果。分享给大家供大家参考，具体如下：

截图：

动画效果介绍：

1.点击ActionBar上“+”按钮，菜单从上方弹出（带反弹效果）；
2.再次点击“+”、点击空白区域或者点击返回键，菜单向上方收起；
3.点击弹出框上的按钮时，该按钮放大，其它按钮缩小，菜单整体渐变退出。

主体代码：

1.Activity.

/** * 仿易信动画弹出框 */public class MainActivity extends ActionBarActivity { //用于标记页面顶端位置 private View topView; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); topView = findViewById(R.id.main_top); } private PopupWindow popupWindow; private int line1DeltaY, line2DeltaY; //仿易信更多弹出框 private void showPopup() { if (popupWindow == null) { View contentView = LayoutInflater.from(this).inflate(R.layout.yixin_pop_layout, null); //点击空白区域关闭 View blankView = contentView.findViewById(R.id.yixin_more_blank); View blankView2 = contentView.findViewById(R.id.yixin_more_blank2); initItems(contentView); //测量高度 int line2Height = ViewUtils.getViewMeasuredHeight(itemViews[0]); line1DeltaY = -getActionBarHeight() - 40; line2DeltaY = line1DeltaY - line2Height; blankView.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { dismissPopup(); } }); blankView2.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { dismissPopup(); } }); popupWindow = new PopupWindow(contentView, ScreenUtils.getScreenW(this), ScreenUtils.getScreenH(this)); //随便设置一个drawable作为背景 popupWindow.setBackgroundDrawable(new ColorDrawable()); } if (!popupWindow.isShowing()) { popupWindow.showAsDropDown(topView, 0, 0); for (int i = 0; i < itemViews.length; i++) { if (i < 3) { //第一行 itemViews[i].startAnimation(AnimationHelper.createPopupAnimIn(this, line1DeltaY)); } else { //第二行 itemViews[i].startAnimation(AnimationHelper.createPopupAnimIn(this, line2DeltaY)); } } popupWindow.getContentView().startAnimation(AnimationHelper.createPopupBgFadeInAnim()); } } private void dismissPopup() { if (popupWindow == null || !popupWindow.isShowing()) { return; } ViewGroup contentView = (ViewGroup) popupWindow.getContentView(); contentView.startAnimation(AnimationHelper.createPopupBgFadeOutAnim(AnimationHelper.TIME_OUT)); for (int i = 0; i < itemViews.length; i++) { if (i < 3) { //第一行 itemViews[i].startAnimation(AnimationHelper.createPopupAnimOut(this, line1DeltaY)); } else { //第二行 itemViews[i].startAnimation(AnimationHelper.createPopupAnimOut(this, line2DeltaY)); } } //动画结束时隐藏popupWindow contentView.postDelayed(new Runnable() { @Override public void run() { popupWindow.dismiss(); } }, AnimationHelper.TIME_OUT + 10); } private View[] itemViews; //初始化popupWindow上的按钮 private void initItems(View parent) { int[] viewIds = new int[]{R.id.yixin_more_item1, R.id.yixin_more_item2, R.id.yixin_more_item3, R.id.yixin_more_item4, R.id.yixin_more_item5, R.id.yixin_more_item6}; itemViews = new View[viewIds.length]; int itemWidth = ScreenUtils.getScreenW(this) / 3; OnClickImpl l = new OnClickImpl(); for (int i = 0; i < viewIds.length; i++) { int id = viewIds[i]; itemViews[i] = parent.findViewById(id); GridLayout.LayoutParams p = (GridLayout.LayoutParams) itemViews[i].getLayoutParams(); p.width = itemWidth; itemViews[i].setLayoutParams(p); itemViews[i].setOnClickListener(l); } } private class OnClickImpl implements View.OnClickListener { @Override public void onClick(View v) { final int viewId = v.getId(); //背景动画 popupWindow.getContentView().startAnimation(AnimationHelper.createPopupBgFadeOutAnim(AnimationHelper.TIME_OUT_CLICK)); //动画结束时隐藏popupWindow v.postDelayed(new Runnable() { @Override public void run() { popupWindow.dismiss(); //动画结束时响应点击事件 handleEvent(viewId); } }, AnimationHelper.TIME_OUT_CLICK + 10); //按钮动画 for (View item : itemViews) { if (item.getId() == v.getId()) { //点击的按钮，放大 item.startAnimation(AnimationHelper.createPopupItemBiggerAnim(MainActivity.this)); } else { //其它按钮，缩小 item.startAnimation(AnimationHelper.createPopupItemSmallerAnim(MainActivity.this)); } } } } //popupWindow上按钮的点击事件 private void handleEvent(int viewId) { Toast.makeText(this, "点击了按钮：" + viewId, Toast.LENGTH_SHORT).show(); } private int getActionBarHeight() { return getSupportActionBar().getHeight(); } @Override public boolean onCreateOptionsMenu(Menu menu) { getMenuInflater().inflate(R.menu.menu_main, menu); return true; } @Override public boolean onOptionsItemSelected(MenuItem item) { int id = item.getItemId(); if (id == R.id.action_more) { if (popupWindow == null || !popupWindow.isShowing()) { showPopup(); } else { dismissPopup(); } return true; } return super.onOptionsItemSelected(item); } //点击返回键时，如果popupWindow是显示状态，则关闭它 @Override public void onBackPressed() { if (popupWindow != null && popupWindow.isShowing()) { dismissPopup(); return; } super.onBackPressed(); }}

2.动画工具类。

/** * AnimationHelper */public class AnimationHelper { /** * 进入动画的时间 */ public static final int TIME_IN = 300; /** * 进入动画之后的反弹动画时间 */ public static final int TIME_IN_BACK = 100; /** * 退出动画的时间 */ public static final int TIME_OUT = 300; /** * 点击PopupWindow上菜单后退出动画的时间 */ public static final int TIME_OUT_CLICK = 500; /** * PopupWindow上菜单进入动画 */ public static Animation createPopupAnimIn(Context context, int fromYDelta) { AnimationSet animationSet = new AnimationSet(context, null);// animationSet.setInterpolator(new BounceInterpolator()); //结束时弹跳 animationSet.setFillAfter(true); //移动 TranslateAnimation translateAnim = new TranslateAnimation(0, 0, fromYDelta, 20); translateAnim.setDuration(TIME_IN); animationSet.addAnimation(translateAnim); //回弹效果 TranslateAnimation translateAnim2 = new TranslateAnimation(0, 0, 0, -20); translateAnim2.setStartOffset(TIME_IN); translateAnim2.setDuration(TIME_IN_BACK); animationSet.addAnimation(translateAnim2); return animationSet; } /** * PopupWindow上菜单离开动画 */ public static Animation createPopupAnimOut(Context context, int toYDelta) { AnimationSet animationSet = new AnimationSet(context, null); animationSet.setFillAfter(true); TranslateAnimation translateAnim = new TranslateAnimation(0, 0, 0, toYDelta); translateAnim.setDuration(TIME_OUT); animationSet.addAnimation(translateAnim); return animationSet; } /** * PopupWindow背景进入动画（透明度渐变） */ public static Animation createPopupBgFadeInAnim() { AlphaAnimation anim = new AlphaAnimation(0, 1.0f); anim.setDuration(TIME_IN); anim.setFillAfter(true); return anim; } /** * PopupWindow背景离开动画（透明度渐变） */ public static Animation createPopupBgFadeOutAnim(int duration) { AlphaAnimation anim = new AlphaAnimation(1.0f, 0); anim.setDuration(duration); anim.setFillAfter(true); return anim; } /** * PopupWindow按钮点击动画 */ public static Animation createPopupItemBiggerAnim(Context context) { AnimationSet animationSet = new AnimationSet(context, null); animationSet.setFillAfter(true); //放大(设置缩放的中心点为自己的中心) ScaleAnimation scaleAnim = new ScaleAnimation(1.0f, 2.0f, 1.0f, 2.0f, Animation.RELATIVE_TO_SELF, 0.5f, Animation.RELATIVE_TO_SELF, 0.5f); scaleAnim.setDuration(TIME_OUT_CLICK); animationSet.addAnimation(scaleAnim); //渐变 AlphaAnimation alphaAnim = new AlphaAnimation(1.0f, 0); alphaAnim.setInterpolator(new AccelerateInterpolator()); alphaAnim.setDuration(TIME_OUT_CLICK); animationSet.addAnimation(alphaAnim); return animationSet; } /** * PopupWindow按钮点击时其它按钮的动画 */ public static Animation createPopupItemSmallerAnim(Context context) { //放大(设置缩放的中心点为自己的中心) ScaleAnimation scaleAnim = new ScaleAnimation(1.0f, 0, 1.0f, 0, Animation.RELATIVE_TO_SELF, 0.5f, Animation.RELATIVE_TO_SELF, 0.5f); scaleAnim.setDuration(TIME_OUT_CLICK); scaleAnim.setFillAfter(true); return scaleAnim; }}

完整实例代码点击此处本站下载。

更多关于Android相关内容感兴趣的读者可查看本站专题：《Android开发动画技巧汇总》、《Android编程之activity操作技巧总结》、《Android视图View技巧总结》、《Android布局layout技巧总结》、《Android开发入门与进阶教程》、《Android资源操作技巧汇总》及《Android控件用法总结》

希望本文所述对大家Android程序设计有所帮助。