Android 可控制概率家务转盘，移动端跨平台开发大型项目
private RelativeLayout relativeLayout;
private ImageView imagePointer;
private TextView text1, text2, text3, text4, text5, text6;
private Context context;
/** 指针转一圈所需要的时间 */
private static final long ONE_WHEEL_TIME = 500;
/** 开始转动时候的角度，初始值为 0 */
private int degreeStart = 0;
/** 指针转圈圈数数据源 */
private int[] laps = { 3, 4, 5, 6 };
/** 指针所指向的角度数据 */
private int[] angles = { 0, 60, 120, 180, 240, 300 };
/** 转盘内容数组 */
private String[] arrayHouseWork = { "扫地", "洗衣服", "休息", "做饭", "洗碗", "休息" };
/** 监听动画状态的监听器 */
private AnimationListener animationListener = new AnimationListener() {
@Override
public void onAnimationStart(Animation animation) {
}
@Override
public void onAnimationRepeat(Animation animation) {
}
@Override
public void onAnimationEnd(Animation animation) {
String name = arrayHouseWork[degreeStart % 360 / 60];
Toast.makeText(context, name, Toast.LENGTH_SHORT).show();
}
};
public HouseWorkWheel(Context context, AttributeSet attrs, int defStyle) {
super(context, attrs, defStyle);
initialView(context);
this.context = context;
}
public HouseWorkWheel(Context context, AttributeSet attrs) {
this(context, attrs, 0);
}
public HouseWorkWheel(Context context) {
this(context, null);
}
private void initialView(final Context context) {
if (relativeLayout == null) {
LayoutInflater inflater = (LayoutInflater) context
.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
relativeLayout = (RelativeLayout) inflater.inflate(
R.layout.view_lucky_wheel, this);
}
text1 = (TextView) findViewById(R.id.text1);
text1.setT
ext(arrayHouseWork[0]);
text2 = (TextView) findViewById(R.id.text2);
text2.setText(arrayHouseWork[1]);
text3 = (TextView) findViewById(R.id.text3);
text3.setText(arrayHouseWork[2]);
text4 = (TextView) findViewById(R.id.text4);
text4.setText(arrayHouseWork[3]);
text5 = (TextView) findViewById(R.id.text5);
text5.setText(arrayHouseWork[4]);
text6 = (TextView) findViewById(R.id.text6);
text6.setText(arrayHouseWork[5]);
imagePointer = (ImageView) relativeLayout
.findViewById(R.id.imagePointer);
imagePointer.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
int lap = laps[(int) (Math.random() * 4)];
int angle = angles[(int) (Math.random() * 6)];
int degreeIncrease = lap * 360 + angle; // 每次转圈角度增量
// 初始化旋转动画
RotateAnimation rotateAnimation = new RotateAnimation(
degreeStart, degreeStart + degreeIncrease,
RotateAnimation.RELATIVE_TO_SELF, 0.5f,
RotateAnimation.RELATIVE_TO_SELF, 0.5f);
long time = (lap + angle / 360) * ONE_WHEEL_TIME; // 计算动画播放总时间
rotateAnimation.setDuration(time); // 设置动画播放时间
rotateAnimation.setFillAfter(true); // 设置动画播放完后，停留在最后一帧画面上
rotateAnimation.setInterpolator(context,
android.R.anim.accelerate_decelerate_interpolator); // 设置动画的加速行为，是先加速后减速
rotateAnimation.setAnimationListener(animationListener); // 设置动画的监听器
imagePointer.startAnimation(rotateAnimation); // 开始播放动画
}
});
}
}
Update：控制概率
/** 转盘内容数组 */
private String[] arrayHouseWork = { "扫地", "洗衣服", "休息", "做饭", "洗碗", "休息" };
/** 概率数组(千分之) */
private int[] arrayProbability = { 10, 10, 480, 10, 10, 480 };
private int countProbability(int[] arrayProbability) {
int temNumber = 1 + new Random().nextInt(1000); // 1-1000
int returnNumber;
if (temNumber <= arrayProbability[0]) {
returnNumber = 0;
} else if (temNumber <= arrayProbability[0] + arrayProbability[1]) {
returnNumber = 1;
} else if (temNumber <= arrayProbability[0] + arrayProbability[1]
arrayProbability[2]) {
returnNumber = 2;
} else if (temNumber <= arrayProbability[0] + arrayProbability[1]
arrayProbability[2] + arrayProbability[3]) {
returnNumber = 3;
} else if (temNumber <= arrayProbability[0] + arrayProbability[1]
arrayProbability[2] + arrayProbability[3]
arrayProbability[4]) {
returnNumber = 4;
} else {
returnNumber = 5;
}
Log.v("AZ", (returnNumber + 1) + "-" + temNumber);
return returnNumber;
}
执行 10000 次：
int[] arrayCount = { 0, 0, 0, 0, 0, 0 };
for (int i = 0; i < 10000; i++) {
int temp = countProbability(arrayProbability);
switch (temp) {
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