Android: Launch app from web browser as new task

When I tried to launch my app from web browser, I found that I could not see the App show up in the App Launcher. It seemed that the app is with the browser.

I have tried the steps below:

1. set SplashActivity launchMode to singleTask;
2. set SplashActivity launchMode to singleInstance

but there is a problem here: after I set the settings above, I found when my app returned from background ,SplashActivity was created.

what should I do to launch my app normally without the problem happening?