传统老虎机的实现，指定坐标停止，看效果
老虎机效果
public class SlotMachineView extends LinearLayout {
public static final int INDEX_GIFT_PACKAGE = 0;// 礼包
public static final int INDEX_COIN = 1;// 金币
public static final int INDEX_RED_PACKAGE = 2;// 红包
private final int IMAGE_WIDTH = dip2px(getContext(), 61);
private final int IMAGE_HEIGHT = dip2px(getContext(), 61);
private final int[] imageItems = new int[]{
R.drawable.img_sm_1,// 礼包
R.drawable.img_sm_2,// 金币
R.drawable.img_sm_3,// 红包
};
private int bingoIndex = INDEX_RED_PACKAGE;
private long wheelDelayMillis = 200;
private int wheelTime = 2000;
private int wheelBaseIndex = imageItems.length * 200;
private boolean isBingo;
private boolean running;
private WheelView wheel1, wheel2, wheel3;
public SlotMachineView(Context context) {
super(context);
initData();
initView();
}
public SlotMachineView(Context context, AttributeSet attrs) {
super(context, attrs);
initData();
initView();
}
public SlotMachineView(Context context, AttributeSet attrs, int defStyleAttr) {
super(context, attrs, defStyleAttr);
initData();
initView();
}
@RequiresApi(api = Build.VERSION_CODES.LOLLIPOP)
public SlotMachineView(Context context, AttributeSet attrs, int defStyleAttr, int defStyleRes) {
super(context, attrs, defStyleAttr, defStyleRes);
initData();
initView();
}
private void initData() {
}
private void initView() {
LinearLayout layout = (LinearLayout) View.inflate(getContext(), R.layout.layout_slot_machine, null);
layout.setLayoutParams(new LinearLayout.LayoutParams(LinearLayout.LayoutParams.MATCH_PARENT, LinearLayout.LayoutParams.MATCH_PARENT));
wheel1 = layout.findViewById(R.id.slot_1);
wheel2 = layout.findViewById(R.id.slot_2);
wheel3 = layout.findViewById(R.id.slot_3);
wheel1.addScrollingListener(scrolledListener1);
wheel2.addScrollingListener(scrolledListener2);
wheel3.addScrollingListener(scrolledListener3);
int defaultIndex = (int) (Math.random() * 10);
initWheel(wheel1, defaultIndex);
initWheel(wheel2, defaultIndex);
initWheel(wheel3, defaultIndex);
addView(layout);
}
private OnWheelScrollListener scrolledListener1 = new OnWheelScrollListener() {
@Override
public void onScrollingStarted(WheelView wheel) {
running = true;
}
@Override
public void onScrollingFinished(WheelView wheel) {
}
};
private OnWheelScrollListener scrolledListener2 = new OnWheelScrollListener() {
@Override
public void onScrollingStarted(WheelView wheel) {
}
@Override
public void onScrollingFinished(WheelView wheel) {
}
};
private OnWheelScrollListener scrolledListener3 = new OnWheelScrollListener() {
@Override
public void onScrollingStarted(WheelView wheel) {
}
@Override
public void onScrollingFinished(WheelView wheel) {
running = false;
if (onScrollListener != null) {
onScrollListener.onStop(bingoIndex);
}
}
};
public boolean isRunning() {
return running;
}
private void initWheel(WheelView wheel, int defaultIndex) {
wheel.setViewAdapter(new SlotMachineAdapter(getContext()));
wheel.setCurrentItem(defaultIndex);
wheel.setCyclic(true);
wheel.setEnabled(false);
}
public boolean isBingo() {
int value1 = wheel1.getCurrentItem();
int value2 = wheel2.getCurrentItem();
int value3 = wheel3.getCurrentItem();
return value1 == value2 && value1 == value3;
}
public void startSm() {
if (!running && bingoIndex >= INDEX_GIFT_PACKAGE && bingoIndex <= INDEX_RED_PACKAGE) {
moveWheel(wheel1);
new Handler().postDelayed(new Runnable() {
@Override
public void run() {
moveWheel(wheel2);
new Handler().postDelayed(new Runnable() {
@Override
public void run() {
moveWheel(wheel3);
}
}, wheelDelayMillis);
}
}, wheelDelayMillis);
}
}
private void moveWheel(WheelView wheelView) {
if (wheelView != null) {
int currentIndex = wheelView.getCurrentItem();
int itemsToScroll = wheelBaseIndex + imageItems.length - currentIndex + bingoIndex;
wheelView.scroll(itemsToScroll, wheelTime);
}
}
// 设置中奖坐标
public void setBingoIndex(int index) {
this.bingoIndex = index;
}
private class SlotMachineAdapter extends AbstractWheelAdapter {
private Context context;
private LinearLayout.LayoutParams params;
private List> images;
public SlotMachineAdapter(Context context) {
this.context = context;
this.params = new LinearLayout.LayoutParams(IMAGE_WIDTH, IMAGE_HEIGHT);
images = new ArrayList<>(imageItems.length);
for (int id : imageItems) {
images.add(new SoftReference<>(loadImage(id)));
}
}
private Bitmap loadImage(int id) {
Bitmap bitmap = BitmapFactory.decodeResource(context.getResources(), id);
Bitmap scaled = Bitmap.createScaledBitmap(bitmap, IMAGE_WIDTH, IMAGE_HEIGHT, true);
bitmap.recycle();
return scaled;
}
@Override
public int getItemsCount() {
return imageItems.length;
}
@Override
public View getItem(int index, View cachedView, ViewGroup parent) {
LinearLayout itemLayout;
if (cachedView != null) {
itemLayout = (LinearLayout) cachedView;
} else {
itemLayout = (LinearLayout) View.inflate(context, R.layout.layout_slot_machine_item, null);
}
ImageView imageView = itemLayout.findViewById(R.id.sm_image);
imageView.setLayoutParams(params);
SoftReference bitmapRef = images.get(index);
Bitmap bitmap = bitmapRef.get();
if (bitmap == null) {
bitmap = loadImage(imageItems[index]);
images.set(index, new SoftReference<>(bitmap));
}
imageView.setImageBitmap(bitmap);
return itemLayout;
}
}
public static int dip2px(Context context, float dipValue) {
if (context == null) {
return (int) dipValue;
}
final float scale = context.getResources().getDisplayMetrics().density;
return (int) (dipValue * scale + 0.5f);
}
public void setBingo(boolean bingo) {
this.isBingo = bingo;
}
public boolean getBingo() {
return isBingo;
}
private OnScrollListener onScrollListener;
public void setOnScrollListener(OnScrollListener onScrollListener) {
this.onScrollListener = onScrollListener;
}
public interface OnScrollListener {
void onStop(int bingoIndex);
}
}
使用：
// 布局文件
源码地址：https://github.com/wuyajun7/SlotMachineView