这篇文章主要介绍Android如何制作抽奖轮盘，文中介绍的非常详细，具有一定的参考价值，感兴趣的小伙伴们一定要看完！
具体内容如下
main布局(图片资源请自行寻找,抱歉)
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="fill_parent" android:layout_height="fill_parent" android:layout_gravity="center"> <ImageView android:layout_width="match_parent" android:layout_height="match_parent" android:src="@drawable/bigwheelgg" /> <ImageView android:id="@+id/light" android:layout_width="match_parent" android:layout_height="match_parent" android:src="@drawable/light" /> <ImageView android:id="@+id/main_wheel" android:layout_width="match_parent" android:layout_height="match_parent" android:src="@drawable/bigwheel" /> <ImageView android:id="@+id/point" android:layout_width="match_parent" android:layout_height="match_parent" android:src="@drawable/point" /></FrameLayout>main代码
//设置一个时间常量，此常量有两个作用，1.圆灯视图显示与隐藏中间的切换时间；2.指针转一圈所需要的时间，现设置为500毫秒private static final long ONE_WHEEL_TIME = 500;//记录圆灯视图是否显示的布尔常量private boolean lightsOn = true;//开始转动时候的角度，初始值为0private int startDegree = 0;private ImageView lightIv;private ImageView pointIv;private ImageView wheelIv;//指针转圈圈数数据源private int[] laps = { 5, 7, 10, 15 };//指针所指向的角度数据源，因为有6个选项，所有此处是6个值private int[] angles = { 0, 60, 120, 180, 240, 300 };//转盘内容数组private String[] lotteryStr = { "索尼PSP", "10元红包", "谢谢参与", "DNF钱包", "OPPO MP3", "5元红包", };//子线程与UI线程通信的handler对象private Handler mHandler = new Handler() { public void handleMessage(android.os.Message msg) { switch (msg.what) { case 0: if (lightsOn) { // 设置lightIv不可见 lightIv.setVisibility(View.INVISIBLE); lightsOn = false; } else { // 设置lightIv可见 lightIv.setVisibility(View.VISIBLE); lightsOn = true; } break; default: break; } };};//监听动画状态的监听器private Animation.AnimationListener al = new Animation.AnimationListener() { @Override public void onAnimationStart(Animation animation) { // TODO Auto-generated method stub } @Override public void onAnimationRepeat(Animation animation) { // TODO Auto-generated method stub } @Override public void onAnimationEnd(Animation animation) { String name = lotteryStr[startDegree % 360 / 60]; Toast.makeText(MainActivity.this, name, Toast.LENGTH_LONG).show(); }};@Overrideprotected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); setupViews(); flashLights(); pointIv.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { int lap = laps[(int) (Math.random() * 4)]; int angle = angles[(int) (Math.random() * 6)]; //每次转圈角度增量 int increaseDegree = lap * 360 + angle; //初始化旋转动画，后面的四个参数是用来设置以自己的中心点为圆心转圈 RotateAnimation rotateAnimation = new RotateAnimation( startDegree, startDegree + increaseDegree, RotateAnimation.RELATIVE_TO_SELF, 0.5f, RotateAnimation.RELATIVE_TO_SELF, 0.5f); //将最后的角度赋值给startDegree作为下次转圈的初始角度 startDegree += increaseDegree; //计算动画播放总时间 long time = (lap + angle / 360) * ONE_WHEEL_TIME; //设置动画播放时间 rotateAnimation.setDuration(time); //设置动画播放完后，停留在最后一帧画面上 rotateAnimation.setFillAfter(true); //设置动画的加速行为，是先加速后减速 rotateAnimation.setInterpolator(MainActivity.this, android.R.anim.accelerate_decelerate_interpolator); //设置动画的监听器 rotateAnimation.setAnimationListener(al); //开始播放动画 pointIv.startAnimation(rotateAnimation); } });}private void setupViews(){ lightIv = (ImageView) findViewById(R.id.light); pointIv = (ImageView) findViewById(R.id.point); wheelIv = (ImageView) findViewById(R.id.main_wheel);}//控制灯圈动画的方法private void flashLights() { Timer timer = new Timer(); TimerTask tt = new TimerTask() { @Override public void run() { // 向UI线程发送消息 mHandler.sendEmptyMessage(0); } }; // 每隔ONE_WHEEL_TIME毫秒运行tt对象的run方法 timer.schedule(tt, 0, ONE_WHEEL_TIME);}@Overridepublic boolean onCreateOptionsMenu(Menu menu) { // Inflate the menu; this adds items to the action bar if it is present. getMenuInflater().inflate(R.menu.main, menu); return true;}以上是“Android如何制作抽奖轮盘”这篇文章的所有内容，感谢各位的阅读！希望分享的内容对大家有帮助，更多相关知识，欢迎关注编程网行业资讯频道！
