Why I'm not getting right screen Size? (Please Help I'm stucked)

I have MI Redmi 5 phone with 720 x 1440 Display, I compiled an APK and installed in it, in my game there is a button which executes the following 3 lines on press event

console.log( cc.view.getViewportRect() ) //{width:1320, height:720} link
console.log( cc.view.getVisibleSizeInPixel() ) //{width:1320, height:720} link
console.log( cc.view.getFrameSize() ) //{width:1320, height:720} link

But all of them gives 1320x720 instead of 1440x720 which is actual screen dimensions

Game has following configuration
-Orientation: Landscape
-Resolution Policy: FitWidth

Due to this my game does not go full screen leaving black borders on both ends, Do you know why it’s having this behavior?

Totally guessing, but is it possible you’ve got the scaling set wrong? There should be a resize height, width, or exact fit setting somewhere that controls the way cocos handles stuff like this.