要讓動畫無限循環(huán)，需設(shè)置其重復(fù)模式為持續(xù)循環(huán)。1.在CSS中，使用animation-iteration-count屬性并設(shè)為infinite；2.在JavaScript庫如GSAP中，設(shè)置repeat為-1，在Anime.js中啟用loop選項；3.在移動端開發(fā)中，Android可通過XML設(shè)置repeatCount為infinite，iOS使用SwiftUI的repeatForever方法實現(xiàn)。同時應(yīng)注意性能管理、交互控制及跨設(shè)備測試。

To make an animation run infinitely, you need to set its repeat mode to loop continuously. This is typically done by adjusting the animation's properties or using specific parameters depending on the platform or tool you're working with.

Here are a few common scenarios and how to apply infinite looping in each:

In CSS Animations

If you're animating elements on a webpage using CSS, you can use the animation-iteration-count property and set it to infinite. Here's a basic example:

@keyframes spin {
  from { transform: rotate(0deg); }
  to   { transform: rotate(360deg); }
}

.spinner {
  animation-name: spin;
  animation-duration: 2s;
  animation-timing-function: linear;
  animation-iteration-count: infinite; /* This makes it loop forever */
}

This will keep your spinner rotating non-stop. You can also control speed, easing, and delay if needed.

In JavaScript (Using Libraries like GSAP or Anime.js)

Libraries like GSAP or Anime.js provide straightforward options for looping animations.

For example, in GSAP:

gsap.to(".box", {
  x: 200,
  repeat: -1, // -1 means infinite loop
  yoyo: true, // Optional: reverse direction every other repeat
  duration: 1
});

In Anime.js:

anime({
  targets: '.box',
  translateX: 250,
  loop: true, // Infinite loop
  direction: 'alternate' // Optional bounce effect
});

These libraries offer more flexibility, such as reversing direction or adding delays between loops.

In Mobile App Development (e.g., Android / iOS)

On mobile platforms, you usually work with built-in animation frameworks.

• Android (XML):

  <rotate
      android:repeatCount="infinite"
      android:repeatMode="restart" />

• SwiftUI (iOS):

  struct ContentView: View {
      @State private var isAnimating = false
  
      var body: some View {
          Circle()
              .frame(width: 100, height: 100)
              .rotationEffect(.degrees(isAnimating ? 360 : 0))
              .animation(.linear(duration: 1).repeatForever(), value: isAnimating)
              .onAppear {
                  self.isAnimating = true
              }
      }
  }

  These approaches allow animations to run indefinitely while keeping performance smooth.

  Tips for Managing Infinite Animations

  • ? Use sparingly: Continuous animations can affect performance, especially on low-end devices.
  • ?? Control start/stop behavior: Sometimes you’ll want to pause or restart the animation based on user interaction.
  • ? Test across devices: What looks smooth on one device might stutter on another — always test real-world performance.

  So whether you're building a website, app, or even a game, setting up infinite animations isn't too complicated once you know where to look.基本上就這些。

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