Input Assist for Input element in mobile Apps in SAPUI5

Hi Experts,

I am trying to create input assist for input in SAPUI5. I have written the below code as it is available in demo kit. My code is below:

<Input id="i2" type="Text" placeholder="Vendor.." showValueHelp="true"></input>

But in my case input is coming but assist icon is not coming.

Why it is not coming in my case?

Regards,

Arindam Samanta.