android 高仿【优酷】圆盘旋转菜单 的实现
早上无意看到了 优酷 这个应用，被这个应用的圆形转动盘菜单所吸引
于是闲来无事解压了 该客户端的APK，轻轻的取出需要的几张图片，对此我身怀愧疚，娃哈哈
搞了一下，主要是布局那块比较蛋疼点。
效果图：
MyAnimation.java
package com.ljp.youku;import android.view.ViewGroup;import android.view.animation.Animation;import android.view.animation.RotateAnimation;public class MyAnimation {// 图标的动画(入动画)public static void startAnimationsIn(ViewGroup viewgroup, int durationMillis) {viewgroup.setVisibility(0);for (int i = 0; i < viewgroup.getChildCount(); i++) {viewgroup.getChildAt(i).setVisibility(0);viewgroup.getChildAt(i).setClickable(true);viewgroup.getChildAt(i).setFocusable(true);}Animation animation;animation = new RotateAnimation(-180, 0, Animation.RELATIVE_TO_SELF,0.5f, Animation.RELATIVE_TO_SELF, 1.0f);animation.setFillAfter(true);animation.setDuration(durationMillis);viewgroup.startAnimation(animation);}// 图标的动画(出动画)public static void startAnimationsOut(final ViewGroup viewgroup,int durationMillis, int startOffset) {Animation animation;animation = new RotateAnimation(0, -180, Animation.RELATIVE_TO_SELF,0.5f, Animation.RELATIVE_TO_SELF, 1.0f);animation.setFillAfter(true);animation.setDuration(durationMillis);animation.setStartOffset(startOffset);animation.setAnimationListener(new Animation.AnimationListener() {@Overridepublic void onAnimationStart(Animation arg0) {}@Overridepublic void onAnimationRepeat(Animation arg0) {}@Overridepublic void onAnimationEnd(Animation arg0) {viewgroup.setVisibility(8);for (int i = 0; i < viewgroup.getChildCount(); i++) {viewgroup.getChildAt(i).setVisibility(8);viewgroup.getChildAt(i).setClickable(false);viewgroup.getChildAt(i).setFocusable(false);}}});viewgroup.startAnimation(animation);}}package com.ljp.youku;import android.app.Activity;import android.os.Bundle;import android.view.View;import android.view.View.OnClickListener;import android.widget.ImageButton;import android.widget.RelativeLayout;public class TestYoukuActivity extends Activity {/** Called when the activity is first created. */private boolean areLevel2Showing = true, areLevel3Showing = true;private RelativeLayout relate_level2, relate_level3;private ImageButton home, menu;@Overridepublic void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.main);findViews();setListener();}private void findViews() {relate_level2 = (RelativeLayout) findViewById(R.id.relate_level2);relate_level3 = (RelativeLayout) findViewById(R.id.relate_level3);home = (ImageButton) findViewById(R.id.home);menu = (ImageButton) findViewById(R.id.menu);}private void setListener() {// 给大按钮设置点击事件home.setOnClickListener(new OnClickListener() {@Overridepublic void onClick(View v) {if (!areLevel2Showing) {MyAnimation.startAnimationsIn(relate_level2, 500);} else {if (areLevel3Showing) {MyAnimation.startAnimationsOut(relate_level2, 500, 500);MyAnimation.startAnimationsOut(relate_level3, 500, 0);areLevel3Showing = !areLevel3Showing;} else {MyAnimation.startAnimationsOut(relate_level2, 500, 0);}}areLevel2Showing = !areLevel2Showing;}});menu.setOnClickListener(new OnClickListener() {@Overridepublic void onClick(View v) {if (!areLevel3Showing) {MyAnimation.startAnimationsIn(relate_level3, 500);} else {MyAnimation.startAnimationsOut(relate_level3, 500, 0);}areLevel3Showing = !areLevel3Showing;}});}}