67.1 AnimatedSwitcher1. IntroductionIn practical development, we often encounter scenarios where UI elements need to be switched, such as tab switches or route transitions. To enhance the user experie···
66.1 IntroductionSometimes, we may need complex animations that consist of a sequence of animations or overlapping animations. For example, consider a bar chart where the height increases while changi···
Route Management and Custom Route Transition AnimationsIn the "Route Management" section, we mentioned that the Material component library provides a MaterialPageRoute component, which uses ···
62.1 Basic Principles of AnimationIn any UI framework, the principle of implementing animations is the same: rapidly change the UI appearance multiple times over a period. Due to the phenomenon of vis···
In an app, we often need a broadcasting mechanism for cross-page event notifications. For example, in a login-required app, pages need to listen for user login or logout events to update their states ···
58.1 Flutter Event Handling ProcessThe Flutter event handling process primarily consists of two steps. To focus on the core flow, we will use user touch events as an example:Hit Testing: When a finger···
56.1 Introduction to Raw Pointer EventsThis section introduces raw pointer events (Pointer Event, typically touch events on mobile devices), while the next section will cover gesture handling.In mobil···
This section will provide a detailed overview of how to use dialogs in Flutter, including their implementation principles, style customization, and state management.55.1 Using DialogsDialogs are essen···
53.1 ValueListenableBuilderInheritedWidget provides a way to share data from top to bottom within the widget tree, but there are many scenarios where the data flow is not strictly top-to-bottom, such ···
51.1 Synchronizing State through EventsIn Flutter development, state management is an enduring topic. The general principle is: if the state is private to a component, it should be managed by that com···