默认DatePicker对话框根据选择更改两个DatePicker日期

I have two date picker dialogs, I want to change the date and set maximum and minimum according to the selection of both dialog pickers. If I select a "start date", end date should start with "start date" selected values, and if I select "end date" first "start date" maximum date should "end date" selected value.I have two date picker dialogs, I want to chang