fix the bug that PickView disappears

[Ficat]

Desc:
If we use custom layout , and in this PickView we click it's child views or areas which don't consume touch events，the following will occur.

• If PickView shows as a dialog, PickView will disappear directly, even if setOutSideCancelable() is true or false
• If not show as a dialog and setOutSideCancelable() is true, PickView still disappears

You can easily reproduce the situation in your sample app just by adding the follwing code to MainActivity#initCustomTimePicker(), run app and once you click the top middle area of the PickView (this area doesn't consume any touch events), you will find this PickView disappeared
.isDialog(true) .setOutSideCancelable(false) .build();