fix iPhoneX lt_setBackgroundColor OverlayHeight BUG;#72

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JeasonL wants to merge 2 commits intoltebean:masterfrom JeasonL:master

+14-10

Commits on Sep 15, 2017

fix iPhoneX lt_setBackgroundColor OverlayHeight BUG;
JeasonL
committed

Commits on Sep 20, 2018

fix iOS12 lt_setBackgroundColor bug
JeasonL
committed