How to hide the Umano SlidingupPanel when clicking outside the panel

With the version 3.3.0 and later, it's possible to do that in the following way

final SlidingUpPanelLayout slidingUpPanelLayout = (SlidingUpPanelLayout) findViewById(R.id.sliding_layout);
slidingUpPanelLayout.setFadeOnClickListener(new View.OnClickListener() {
    @Override
    public void onClick(View view) {
        slidingUpPanelLayout.setPanelState(SlidingUpPanelLayout.PanelState.COLLAPSED);
    }
});

source

I believe you have fixed your problem but for others who has same requirement I added another View on top of my map (in xml layout) and set it's touch click-ability.

So my xml file is like this:

<com.sothree.slidinguppanel.SlidingUpPanelLayout
        android:id="@+id/sliding_layout"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:layout_above="@+id/booking_confirm_layout"
        android:gravity="bottom"
        app:umanoFadeColor="@color/black_75_percent"
        app:umanoOverlay="true"
        app:umanoPanelHeight="111dp"
        app:umanoShadowHeight="0dp">

        <FrameLayout
            android:layout_width="match_parent"
            android:layout_height="match_parent">

            <com.google.android.gms.maps.MapView
                android:id="@+id/map_view"
                android:layout_width="match_parent"
                android:layout_height="match_parent"
                android:layout_marginBottom="96dp" />

            <View
                android:id="@+id/mapCover"
                android:layout_width="match_parent"
                android:layout_height="match_parent"
                android:background="@android:color/transparent"/>
        </FrameLayout>

 <LinearLayout>
.
.
.
</LinearLayout>
</com.sothree.slidinguppanel.SlidingUpPanelLayout>

And in the code:

this.mMapCover = findViewById(R.id.mapCover);
        this.mMapCover.setOnTouchListener(new View.OnTouchListener()
        {
            @Override
            public boolean onTouch(View v, MotionEvent event)
            {
                if (mSlidingPanel.getPanelState() != PanelState.COLLAPSED)
                {
                    mSlidingPanel.setPanelState(PanelState.COLLAPSED);
                    return true;
                }

                return false;
            }
        });