heightMeasureSpec = widthMeasureSpec = MeasureSpec.makeMeasureSpec（childWidthSize，MeasureSpec.EXACTLY）是什麼意思？

Question

在下面的示例代碼中，我找到heightMeasureSpec = widthMeasureSpec = MeasureSpec.makeMeasureSpec（childWidthSize，MeasureSpec.EXACTLY）。 代碼中有兩個「=」，是不是？這是Java語法嗎？

@SuppressWarnings("unused") 
    @Override 
    protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { 

     setMeasuredDimension(getDefaultSize(0, widthMeasureSpec), getDefaultSize(0, heightMeasureSpec)); 

     int childWidthSize = getMeasuredWidth(); 
     int childHeightSize = getMeasuredHeight(); 

     heightMeasureSpec = widthMeasureSpec = MeasureSpec.makeMeasureSpec(childWidthSize, MeasureSpec.EXACTLY); 
     super.onMeasure(widthMeasureSpec, heightMeasureSpec); 
    } 

Answer 1

是的，它允許在Java中使用。它將heightMeasureSpec和widthMeasureSpec都設置爲從MeasureSpec.makeMeasureSpec(childWidthSize, MeasureSpec.EXACTLY)返回的值。