以下：https://developer.android.com/training/gestures/movement.html
用于处理$orderdate = '20150102';
if (preg_match('#^(\d{4})(\d{2})(\d{2})$#', $orderdate, $matches)) {
$day = $matches[1];
$month = $matches[2];
$year = $matches[3];
}
中的移动。我的问题是，即使按照教程链接，似乎从未注册过触摸。
代码：
$date = "20160101";
$array['year'] = substr($date, 0, 4);
$array['month'] = substr($date, 4, 2);
$array['day'] = substr($date, 6, 2);
print_r($array);
每次触摸精灵时都会收到一条logcat消息，但每当我触摸屏幕或滑动时我什么也得不到。我意识到最可能的原因是我没有正确使用onTouchEvent，但我已尝试实施其他问题中建议的一些事情，但没有运气。
修改
如下所示，我的游戏逻辑在这里是错误的。我在一个错误的类中使用了onTouchEvent。当我将其更改为public class Sprite extends Activity {
private static final int BMP_ROWS = 4;
private static final int BMP_COL = 3;
private int x, y = 0;
private int speedx, speedy = 5;
private int currentFrame = 0;
private int width, height;
private float xTouch, yTouch;
private VelocityTracker mVelocityTracker = null;
private GameView gameView;
private Bitmap bmp;
int [] DIRECTION_TO_ANIMATE_MAP = {3, 1, 0, 2};
public Sprite(GameView gameView, Bitmap bmp) {
this.gameView = gameView;
this.bmp = bmp;
this.width = bmp.getWidth() / BMP_COL;
this.height = bmp.getHeight() / BMP_ROWS;
}
private void Update() {
if (x >= gameView.getWidth() - width - speedx|| x + speedx <= 0) {
}
if (y >= gameView.getHeight() - height - speedy || y + speedy <= 0) {
}
currentFrame = ++currentFrame % BMP_COL;
}
public boolean onTouchEvent(MotionEvent event) {
int index = event.getActionIndex();
int action = event.getActionMasked();
int pointerId = event.getPointerId(index);
synchronized (gameView.getHolder()) {
if (this.isCollition(event.getX(), event.getY())) {
Log.d("", "Sprite touched!");
}
switch (action) {
case MotionEvent.ACTION_DOWN:
if (mVelocityTracker == null) {
mVelocityTracker = VelocityTracker.obtain();
} else {
mVelocityTracker.clear();
}
xTouch = event.getX();
yTouch = event.getY();
Log.d("", "You clicked: " + Float.toString(xTouch) + "," + Float.toString(yTouch));
mVelocityTracker.addMovement(event);
break;
case MotionEvent.ACTION_MOVE:
mVelocityTracker.addMovement(event);
mVelocityTracker.computeCurrentVelocity(1000);
Log.d("", "X velocity: " + VelocityTrackerCompat.getXVelocity(mVelocityTracker, pointerId));
Log.d("", "Y velocity: " + VelocityTrackerCompat.getYVelocity(mVelocityTracker, pointerId));
break;
case MotionEvent.ACTION_UP:
case MotionEvent.ACTION_CANCEL:
mVelocityTracker.recycle();
break;
}
}
boolean ret = super.onTouchEvent(event);
return ret;
}
public void onDraw(Canvas canvas) {
MotionEvent event = null;
Update();
int srcX = 1 * width;
int srcY = 0 * height;
Rect src = new Rect(srcX, srcY, srcX + width, srcY + height);
Rect dst = new Rect(x, y, x + width, y + height);
canvas.drawBitmap(bmp, src, dst, null);
}
public boolean isCollition(float x2, float y2) {
return x2 > x && x2 < x + width && y2 > y && y2 < y + height;
}
}
类时，它可以完美地运行：
onTouchEvent答案 0 :(得分：1)
再次检查你的游戏逻辑并手动处理返回值，而不是 super.onTouchEvent（event）;