fix:调整在选择限时指纹时中生效时间的时间选择器最小时间为当前时间

lib/main/lockDetail/fingerprint/addFingerprintSelectType/addFingerprintType_page.dart

@@ -128,6 +128,15 @@ class _AddFingerprintTypePageState extends State<AddFingerprintTypePage>
 
   // 限时顶部选择日期
   Widget keyTimeLimitWidget() {
+    // 获取当前时间
+    DateTime now = DateTime.now();
+
+    // 获取各个部分
+    int year = now.year;
+    int month = now.month;
+    int day = now.day;
+    int hour = now.hour;
+    int minute = now.minute;
     return Column(
       children: <Widget>[
         Obx(() => CommonItem(
@@ -139,6 +148,13 @@ class _AddFingerprintTypePageState extends State<AddFingerprintTypePage>
               final PDuration selectDate = PDuration.parse(
                   DateTime.tryParse(state.timeLimitBeginTime.value));
               Pickers.showDatePicker(context,
+                  minDate: PDuration(
+                    year: year,
+                    month: month,
+                    day: day,
+                    hour: hour,
+                    minute: minute,
+                  ),
                   selectDate: selectDate,
                   mode: DateMode.YMDHM, onConfirm: (PDuration p) {
                 state.timeLimitBeginTime.value =
@@ -153,6 +169,13 @@ class _AddFingerprintTypePageState extends State<AddFingerprintTypePage>
               final PDuration selectDate = PDuration.parse(
                   DateTime.tryParse(state.timeLimitEndTime.value));
               Pickers.showDatePicker(context,
+                  minDate: PDuration(
+                    year: year,
+                    month: month,
+                    day: day,
+                    hour: hour,
+                    minute: minute,
+                  ),
                   selectDate: selectDate,
                   mode: DateMode.YMDHM, onConfirm: (PDuration p) {
                 state.timeLimitEndTime.value =