Is it possible to have different layout elements inside CollapsingToolbarLayout?

Question

我正在尝试在CollapsingToolbarLayout内放置包含imageview按钮和其他UI元素的LinearLayout ，这可能吗？

Answer 1

CollapsingToolbarLayout is a subclass of FrameLayout so it has the same behavior and in theory you can have LinearLayout as a child.

But usually CollapsingToolbarLayout should be a direct child of AppBarLayout and it should contain Toolbar . If you need an ImageView as a background you will have something like this:

<android.support.design.widget.AppBarLayout
... >
<android.support.design.widget.CollapsingToolbarLayout
    ... >
    <ImageView
        .../>
    <android.support.v7.widget.Toolbar
        ... />
</android.support.design.widget.CollapsingToolbarLayout>

If you need navigation buttons consider using app:navigationIcon="@drawable/arrow_left" inside Toolbar .