请问这个代码中的竖线等号表示的是什么意思?

Question

more |= drawChild(canvas, child, drawingTime); // 这个是什么符号 ? 或,等于?

@Override  
protected void dispatchDraw(Canvas canvas){  
    ...  

    for (int i = 0; i < count; i++) {  
        final View child = children[getChildDrawingOrder(count, i)];  
        if ((child.mViewFlags & VISIBILITY_MASK) == VISIBLE || child.getAnimation() != null) {  
         [color=red] [b]  more |= drawChild(canvas, child, drawingTime);  [/b][/color]
        }  
    }  
}  
protected boolean drawChild(Canvas canvas, View child, long drawingTime) {  
    ...  
    child.computeScroll();  
    ...  
}  

这是一段安卓的代码

Answer 1

这个是 boolean类型的或运算
boolean a = true;
boolean b = false;
a|=b;//相当于a=a|b
& 是与运算
^异或运算
a&=b;
a^=b;