Question

收到一些错误但不知道该怎么做。请帮忙。尝试在Android 1.5版中开发蛇游戏并使用eclipse sdk版本4.2.0似乎这些错误是阻止我调试游戏的唯一因素。

The method getX() in the type MotionEvent is not applicable for the arguments (int) 
The method getY() in the type MotionEvent is not applicable for the arguments (int) 
The method getX() in the type MotionEvent is not applicable for the arguments (int) 
The method getY() in the type MotionEvent is not applicable for the arguments (int) 
The method getPointerCount() is undefined for the type MotionEvent  
The method getPointerId(int) is undefined for the type MotionEvent  
ACTION_POINTER_DOWN cannot be resolved or is not a field    
The method getX() in the type MotionEvent is not applicable for the arguments (int) 
The method getY() in the type MotionEvent is not applicable for the arguments (int) 
ACTION_POINTER_UP cannot be resolved or is not a field  MultiTouchHandler.java  
ACTION_MASK cannot be resolved or is not a field    
ACTION_POINTER_ID_MASK cannot be resolved or is not a field 
ACTION_POINTER_ID_SHIFT cannot be resolved or is not a field
The method getPointerId(int) is undefined for the type MotionEvent

代码：

public boolean onTouch(View v, MotionEvent event) {  
    synchronized (this) {  
        int action = event.getAction() & MotionEvent.ACTION_MASK;  
        int pointerIndex = (event.getAction() & MotionEvent.ACTION_POINTER_ID_MASK) >>   MotionEvent.ACTION_POINTER_ID_SHIFT;  
        int pointerId = event.getPointerId(pointerIndex);   

        switch (action) {
        case MotionEvent.ACTION_DOWN:
        case MotionEvent.ACTION_POINTER_DOWN:
            touchEvent = touchEventPool.newObject();
            touchEvent.type = TouchEvent.TOUCH_DOWN;
            touchEvent.pointer = pointerId;
            touchEvent.x = touchX[pointerId] = (int) (event
                    .getX(pointerIndex) * scaleX);
            touchEvent.y = touchY[pointerId] = (int) (event
                    .getY(pointerIndex) * scaleY);
            isTouched[pointerId] = true;
            touchEventsBuffer.add(touchEvent);
            break;

        case MotionEvent.ACTION_UP:
        case MotionEvent.ACTION_POINTER_UP:
        case MotionEvent.ACTION_CANCEL:
            touchEvent = touchEventPool.newObject();
            touchEvent.type = TouchEvent.TOUCH_UP;
            touchEvent.pointer = pointerId;
            touchEvent.x = touchX[pointerId] = (int) (event
                    .getX(pointerIndex) * scaleX);
            touchEvent.y = touchY[pointerId] = (int) (event
                    .getY(pointerIndex) * scaleY);
            isTouched[pointerId] = false;
            touchEventsBuffer.add(touchEvent);
            break;

        case MotionEvent.ACTION_MOVE:
            int pointerCount = event.getPointerCount();
            for (int i = 0; i < pointerCount; i++) {
                pointerIndex = i;
                pointerId = event.getPointerId(pointerIndex);

                touchEvent = touchEventPool.newObject();
                touchEvent.type = TouchEvent.TOUCH_DRAGGED;
                touchEvent.pointer = pointerId;
                touchEvent.x = touchX[pointerId] = (int) (event
                        .getX(pointerIndex) * scaleX);
                touchEvent.y = touchY[pointerId] = (int) (event
                        .getY(pointerIndex) * scaleY);
                touchEventsBuffer.add(touchEvent);
            }
            break;
        }

        return true;
    }
}

Answer 1

您的方法/变量与您在其中使用它们的上下文所需的类型不匹配。

查看代码，看看方法参数和返回类型是否都匹配。

Answer 2

您获得错误的所有这些方法都无法在您选择的API级别中使用。增加API级别或删除任何多触摸特定代码。

MultiTouchHandler几个错误？

2 个答案: