我想在我的底部面板上设置一个锚点:
<!-- bottom sheets -->
<LinearLayout
android:id="@+id/bottom_sheet"
android:layout_width="match_parent"
android:layout_height="300dp"
android:orientation="vertical"
android:padding="10dp"
app:layout_behavior="@string/bottom_sheet_behavior">
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="bottom sheets test! " />
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginTop="20dp"
android:text="bottom sheets content! bottom sheets content! bottom sheets content! bottom sheets content! bottom sheets content! bottom sheets content! bottom sheets content! bottom sheets content! bottom sheets content! bottom sheets content! bottom sheets content! bottom sheets content! " />
</LinearLayout>
<android.support.design.widget.FloatingActionButton
android:id="@+id/fab"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_margin="@dimen/fab_margin"
android:src="@android:drawable/ic_dialog_email"
app:layout_anchor="@id/bottom_sheet"
app:layout_anchorGravity="bottom|end" />
我将FAB作为CoordinateLayout的直接子项添加,并将底部表单的ID设置为FAB的layout_anchor,然后设置它的layout_anchorGravity。但是它不起作用,FAB不会移动。