I can't hide Floating Action Button?

Question

I am trying to hide my FAB in a button click, but it's not working.?

My XML

<com.google.android.material.floatingactionbutton.FloatingActionButton
    android:id="@+id/fabbb"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_alignParentEnd="true"
    android:layout_alignParentBottom="true"
    android:layout_margin="@dimen/_10sdp"
    android:src="@drawable/ic_arrow_forward_black_24dp"
    android:tint="@color/md_white_1000" />

<Button
    android:id="@+id/show"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_margin="@dimen/_10sdp"
    android:text="HIDE" />

My Activity

show.setOnClickListener {
        fabbb.visibility == View.GONE
    }

Answer 1

使用方法hide ：

fab.hide();

Answer 2

Your current code is doing nothing, instead of returning true or false (most probably true , as you are using comparison instead of equal-to ).

You should write code as

show.setOnClickListener {
    fabbb.visibility = View.GONE
}

Or even you can use fabbb.hide() , as another answer suggested if you need animation too.

Answer 3

you need to call a function to hide and show FAB

to hide fab.hide() to show fab.show() Check the documentation here