我把一个背景，一个TextView。我希望背景将调整到我的现有布局的参数，也不会改变我的TextView的大小。所以，如果我有宽度和高度设置为WRAP_CONTENT，我希望背景也包装内容（和比例缩小）。不过没有关系，我所得到的是一个更大的TextView

I put a background to a TextView. I expect the background will adjust to my existing layout parameters and will not change the size of my TextView. So if I have width and height set to wrap_content, I would expect the background also wraps content (and scales down). But no, what I get is a bigger TextView

<TextView 
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:text="a"
    android:textColor="#ffffff"
    android:textSize="20sp"
    android:background="@drawable/large_bg"
/>

我收到

...

我如何作出这样的背景也服从WRAP_CONTENT？

How do I make that the background also obeys wrap_content?

我的意思是，这看起来像背景将被视为内容...

I mean, this looks like the background would be treated as content...

推荐答案

这是因为，当我们设置背景比的TextView或任何构件根据该background.Until调整本身，除非我们有没有提到修复高度和宽度[及其可怜的做法]

This is because when we set background than textView or any Widget adjusts itself according to that background.Until and Unless we have not mentioned the Fix Height and Width[Its Poor approach]