在自定义视图类中播放GIF

时间:2019-01-18 09:48:09

标签: android android-animation android-view gif

我有一个自定义类,该类扩展了View类。如何通过Canvas方法在onDraw上绘制的其他东西后面绘制GIF?

存在类似的问题,但不推荐使用Movie类:

How to play GIF in android

2 个答案:

答案 0 :(得分:1)

通过以下方式尝试通过在您的onDraw()方法中使用 Glide 加载 GIF

编辑:基于与 @filipst 的讨论,有关将其加载到画布上,并以onResourceReady()方法添加代码

@Override
protected void onDraw(Canvas canvas) {
    ...
    Glide.with(this.getContext())  // 'this' here is your custom view reference 
        .asGif() // We will define this to tell Glide about it's GIF format to load explicitly
        .load(R.raw.gif_test) // or even put it into drawable R.drawable.git_test
        .into(new SimpleTarget<GifDrawable>() { 
            @Override 
            public void onResourceReady(@NonNull GifDrawable resource, @Nullable Transition<? super GifDrawable> transition) { 
                resource.setBounds(0, 0, canvas.getWidth(), canvas.getHeight()); // Import to set bounds of canvas to load resource otherwise won't load
                resource.draw(canvas); 
                resource.start();
                //or 
                resource.startFromFirstFrame();
            } 
    });
    ...
}

答案 1 :(得分:0)

您可以使用Lottie,这里是Library

从XML

<com.airbnb.lottie.LottieAnimationView
        android:id="@+id/animation_view"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"

        app:lottie_rawRes="@raw/hello_world"
        // or
        app:lottie_fileName="hello_world.json"

        // Loop indefinitely
        app:lottie_loop="true"
        // Start playing as soon as the animation is loaded
        app:lottie_autoPlay="true" />

以编程方式

@BindView(R.id.animation_view)
LottieAnimationView animation_view;

 animation_view.setImageAssetsFolder("images/");
        animation_view.setAnimation(R.raw.lightning_animation);
        animation_view.useHardwareAcceleration(true);
        animation_view.enableMergePathsForKitKatAndAbove(true);
        animation_view.setScaleType(ImageView.ScaleType.CENTER_CROP);
        animation_view.playAnimation();

这是一个使用GIF等动画的简单易用的库。