Android Material Design - LinearLayout elevation

Question

I am just starting out with material design and am faced with the challenge of getting elevated to work with anything but CardView. In particular, should it work with LinearLayout?

<LinearLayout
            android:paddingTop="10dp"
            android:orientation="vertical"
            android:paddingLeft="@dimen/activity_horizontal_margin"
            android:paddingRight="@dimen/activity_horizontal_margin"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:elevation="2dp">
            <LinearLayout
                android:id="@+id/shareLayout"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:paddingBottom="10dp">

                <ImageView
                    android:id="@+id/shareIcon"
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:src="@drawable/ic_share_black_48dp"/>
                <TextView
                    android:id="@+id/shareText"
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:layout_gravity="center_vertical"
                    android:paddingLeft="10dp"
                    android:text="@string/action_share"/>
            </LinearLayout>
            <LinearLayout
                android:layout_width="wrap_content"
                android:layout_height="wrap_content">

                <ImageView
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:src="@drawable/ic_computer_black_48dp"/>
                <TextView
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:layout_gravity="center_vertical"
                    android:paddingLeft="10dp"
                    android:text="@string/action_desktop"/>
            </LinearLayout>

        </LinearLayout>

This code does not create a visible layout height - there is no shadow. If I put it in CardView, the height will work, but then I have problems with clicking events. I tried to delete the images, but this does not affect. Do I just need to wrap everything I want picked up in CardView, or is there another way? Thank.

I am testing a Nexus 7 running Android 5.0.2.

UPDATE

I tried the outline provider, as suggested, and this leads to a shadow, but weird.

It seems that LinearLayout is at an angle or something instead of just being raised. Changing the field does not help. Does anyone have any other ideas?

Answer 1

ViewOutlineProvider. , . . , ViewOutlineProvider:

view.setOutlineProvider(new ViewOutlineProvider() {
    @Override
    public void getOutline(View view, Outline outline) {
        outline.setRect(0, 0, view.getWidth(), view.getHeight());
    }
});

, . CardView .