4
我想繪製圓，每當用戶點擊自定義視圖時，並基於點擊計數圓圈顏色更改。標識自定義視圖上的三次點擊
Single Tap : YELLOW CIRCLE
Double Tap : GREEN CIRCLE
Triple Tap : RED COLOR
問題是，我做了一個自定義視圖，將根據時間計算自來水事件，但過一段時間就錯過了第一個水龍頭。這導致了問題。
以下代碼顯示了我在自定義視圖之上所做的所有努力。
TripleTapView
package com.slk.car_rating_app;
import java.util.ArrayList;
import java.util.Date;
import android.annotation.SuppressLint;
import android.content.Context;
import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.Paint;
import android.graphics.PointF;
import android.graphics.RectF;
import android.os.CountDownTimer;
import android.view.MotionEvent;
import android.view.View;
public class TripleTapView extends View {
// Set the tap delay in milliseconds
protected static final long TAP_MAX_DELAY = 500L;
// Radius to capture tap within bound
final static int RADIUS = 30;
// Store all points with tap count
public ArrayList<CustomPoint> point = new ArrayList<CustomPoint>();
// Context to access view
Context context;
Paint paint;
private long thisTime = 0, prevTime = 0;
private boolean firstTap = true, doubleTap = false;;
float stopX, stopY, startX, startY;
RectF area_rect;
TapCounter tapCounter = new TapCounter(TAP_MAX_DELAY, TAP_MAX_DELAY);
public TripleTapView(Context context) {
super(context);
this.context = context;
paint = new Paint();
paint.setColor(Color.GREEN);
paint.setAntiAlias(true);
paint.setDither(true);
paint.setStyle(Paint.Style.FILL);
paint.setStrokeJoin(Paint.Join.ROUND);
paint.setStrokeCap(Paint.Cap.ROUND);
paint.setStrokeWidth(2);
}
@SuppressLint("DrawAllocation")
@Override
protected void onDraw(final Canvas canvas) {
super.onDraw(canvas);
for (CustomPoint point_temp : point) {
// For changing tap circle color based on tap count
switch (point_temp.count) {
case 1:
paint.setColor(Color.YELLOW);
break;
case 2:
paint.setColor(Color.GREEN);
break;
case 3:
paint.setColor(Color.RED);
break;
}
canvas.drawCircle(point_temp.point.x, point_temp.point.y, 10, paint);
}
}
@Override
public boolean onTouchEvent(MotionEvent event) {
switch (event.getAction()) {
case MotionEvent.ACTION_DOWN:
stopX = event.getX();
stopY = event.getY();
if (firstTap) {
addFirstTap();
} else if (doubleTap) {
prevTime = thisTime;
thisTime = new Date().getTime();
if (thisTime > prevTime) {
if ((thisTime - prevTime) <= TAP_MAX_DELAY) {
if (area_rect.contains(stopX, stopY))
doubleTap = false;
else {
addPoint(1);
addFirstTap();
}
} else {
addPoint(1);
firstTap = true;
}
} else {
firstTap = true;
}
} else {
prevTime = thisTime;
thisTime = new Date().getTime();
if (thisTime > prevTime) {
if ((thisTime - prevTime) <= TAP_MAX_DELAY) {
if (area_rect.contains(stopX, stopY)) {
addPoint(3);
firstTap = true;
} else {
addPoint(2);
addFirstTap();
}
} else {
addPoint(2);
firstTap = true;
}
} else {
firstTap = true;
}
}
}
return true;
}
void addPoint(int tapCount) {
point.add(new CustomPoint(new PointF(startX, startY), tapCount));
invalidate();
}
void addFirstTap() {
thisTime = new Date().getTime();
firstTap = false;
doubleTap = true;
startX = stopX;
startY = stopY;
area_rect = new RectF(stopX - RADIUS, stopY - RADIUS, stopX + RADIUS,
stopY + RADIUS);
tapCounter.resetCounter();
}
class TapCounter extends CountDownTimer {
public TapCounter(long millisInFuture, long countDownInterval) {
super(millisInFuture, countDownInterval);
}
@Override
public void onFinish() {
if (doubleTap) {
prevTime = thisTime;
thisTime = new Date().getTime();
if (thisTime > prevTime) {
if ((thisTime - prevTime) <= TAP_MAX_DELAY) {
doubleTap = false;
} else {
addPoint(1);
firstTap = true;
}
} else {
firstTap = true;
}
} else if (!firstTap && !doubleTap) {
prevTime = thisTime;
thisTime = new Date().getTime();
if (thisTime > prevTime) {
if ((thisTime - prevTime) <= TAP_MAX_DELAY) {
addPoint(2);
firstTap = true;
}
} else {
firstTap = true;
}
}
}
@Override
public void onTick(long millisUntilFinished) {
}
public void resetCounter() {
start();
}
}
}
請幫我解決這個問題。