I am having a sliding drawer positioned at the bottom . and below that I have a linear layout of 50dp .
So my layout looks like this :

Where red rectangle is the sliding drawer handle
Now when I slide my finger from bottom of the screen to the sliding drawer , i.e. along the blue path

The sliding drawer doesn’t open . It doesn’t open because the click activity is captured by the bottom layout.
The sliding drawer opens only when I click EXACTLY within the red rectangle.
I tried making the bottom layout clickable=>false focussable=>false still no good.
Any idea on how can I make the click event of bottom layout loose its click as soon as the finger is out of the layout ? , so that the handle can capture the click
I would suggest you to create the entire linear layout (brown bottom bar) as handler for your drawer. Doing so will allow you to slide the drawer as you want in the second picture.
Or, alternatively, you can make use of FrameLayout to present LinearLayout and drawer’s view as with in a single layout and set the width and height of your drawer as linear layout – covering the entire area of linear layout.
Or, at last, implement SimpleOnGestureListener on linearlayout (for upwards direction) to execute drawer’s click action.