Splash preferences

Manage Splash Screen in IONIC(PhoneGap) or Native Project

  <preference name="SplashScreen" value="screen"/>

  <preference name="SplashScreenDelay" value="5000"/>

  <preference name="AutoHideSplashScreen" value="true" />

  <preference name="ShowSplashScreenSpinner" value="true"/>

  <preference name="FadeSplashScreen" value="true"/>

  <preference name="FadeSplashScreenDuration" value="1000"/>

For Manage Orientation

  <preference name="Orientation" value="portrait"/>