In my project, I have used libraries which require multidex support. Based on the research I did, I came to know that it causes delay during app start up.
I have ena
There is an issue in version 2.0 and 2.1 of android studio, but the answer is simple. You must go to Preferences/Build, Execution, Deployment/Instant Run.
Then when you click on "Instant Run" in the right side will appear 4 options with a checkbox for echa one, you must uncheck the first and the last one. Finally click Apply,Ok. And that's all.
That will solve the problem