wp8.1 Pivot Bottomappbar

First write the first blog, write bad people forgive me, what problems I hope you correct, in the common learning common progress goal to play blog.

Recently did two months of wp8.1 development, has not done this aspect of development, to say that today I encountered problems and solutions, perhaps the solution is a bit not too good, we have a better welcome to correct.

I divided three PivotItem, to a PivotItem plus a bottomappbar after the other pivotitem also have to add bottomappbar, otherwise there will be inexplicable error. The way I use it when I do a page jump is:

Pivotselection is just a local variable, found in the page jump when the first PivotItem jump to another page and back to the first PivotItem nothing, If the second PivotItem jumps to a different page (a page that does not contain bottomappbar), then back home, the bottomappbar below will disappear and there is only one blank. I was in the second PivotItem jump to the interface add Bottomappbar and then back to the second PivotItem there is no problem. I did it and I don't know if there's a better solution.