Reduced the lifetime from 'static to 'a for the on_change function passed to NumberInput.

Author: pixel27

src/widget/helpers.rs

@@ -296,8 +296,8 @@ where
     Message: Clone + 'a,
     Renderer: iced_core::text::Renderer<Font = iced_core::Font>,
     Theme: crate::style::number_input::ExtendedCatalog,
-    F: 'static + Fn(T) -> Message + Copy,
-    T: 'static
+    F: 'a + Fn(T) -> Message + Copy,
+    T: 'a
         + num_traits::Num
         + num_traits::NumAssignOps
         + PartialOrd

src/widget/number_input.rs

@@ -120,8 +120,7 @@ where
     /// - a function that produces a message when the [`NumberInput`] changes
     pub fn new<F>(value: &T, bounds: impl RangeBounds<T>, on_change: F) -> Self
     where
-        F: 'static + Fn(T) -> Message + Clone,
-        T: 'static,
+        F: 'a + Fn(T) -> Message + Clone
     {
         let padding = DEFAULT_PADDING;