[Banner] #android #material #design

appbar_elevation.xml

<selector xmlns:android="http://schemas.android.com/apk/res/android">
    <item android:state_selected="true">
        <objectAnimator android:propertyName="elevation"
            android:valueTo="@dimen/standard_elevation"
            android:valueType="floatType"
            android:duration="100"/>
    </item>

    <item>
        <objectAnimator android:propertyName="elevation"
            android:valueTo="@dimen/no_elevation"
            android:valueType="floatType"
            android:duration="100"/>
    </item>
</selector>

Layout.xml

            <LinearLayout
                android:id="@+id/banner"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:visibility="visible"
                android:orientation="vertical">

                <TextView
                    android:layout_width="match_parent"
                    android:layout_height="wrap_content"
                    android:layout_marginBottom="@dimen/standard_spacing"
                    android:layout_marginTop="@dimen/standard_spacing_big"
                    android:layout_marginLeft="@dimen/standard_spacing_big"
                    android:layout_marginRight="@dimen/standard_spacing_big"
                    android:text="@string/msg_banner_msg" />

                <Button
                    android:id="@+id/gallery_banner_btn_verify_account"
                    style="@style/Widget.AppCompat.Button.Borderless.Colored"
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:layout_gravity="end|bottom"
                    android:text="@string/msg_banner_btn" />

                <View
                    android:id="@+id/divider"
                    android:layout_width="match_parent"
                    android:layout_height="1dp"
                    android:background="?android:attr/listDivider" />
            </LinearLayout>

View.java

appBar.setStateListAnimator(AnimatorInflater.loadStateListAnimator(getContext(), R.animator.appbar_elevation));

-----
  
TransitionSet transitionSet = new TransitionSet();
transitionSet.addTransition(new Slide(Gravity.TOP));
TransitionManager.beginDelayedTransition(container, transitionSet);

appBar.setSelected(true);