Introduction and example demonstration of Qt animation class
As a C++ framework for graphical interface design, the animation class library is an indispensable part of the powerful tool set provided by Qt. This article will introduce how to use the Qt animation class, and provide some example demonstrations.
foreword
In graphic interface design, animation is one of the important means to enhance user interaction experience. As a powerful GUI library, Qt has rich animation functions, such as transparency change, position change, size, outline and shape, color and gradient, etc. Before using the Qt animation library, we need to understand the structure and API of the Qt animation class.
Introduction to Qt animation classes
The Qt animation class belongs to the Qt Core module, mainly including the following classes:
- QPropertyAnimation: Property animation class, used to animate the property value of an object.
- QSequentialAnimationGroup: Sequence animation group, used to play a group of animations as a sequence.
- QParallelAnimationGroup: Parallel animation group, used to play a group of animations at the same time.
- QPauseAnimation: Pause the animation class, used to pause the current animation for a period of time.
- QAbstractAnimation: Abstract base class for customizing more types of animations through subclassing.
Next, we introduce the usage of QPropertyAnimation and QSequentialAnimationGroup respectively.
1. QPropertyAnimation
The QPropertyAnimation class is one of the most commonly used property animation classes in the Qt animation library. It changes the property value of an object in a specific way to complete the animation effect.
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