如何检查lottie animation 是否有效？

Question

Im trying to do a simple loading with lottie. I found this animation: https://lottiefiles.com/18563-cooking# =

  <com.airbnb.lottie.LottieAnimationView
            android:id="@+id/animation_view"
            android:layout_width="200dp"
            android:layout_height="200dp"
            app:lottie_autoPlay="true"
            app:lottie_loop="true"
            app:lottie_rawRes="@raw/test"
            />

It's stored in SRC/Main/res/raw but I get this error:

You must set an images folder before loading an image. Set it with LottieComposition#setImagesFolder or LottieDrawable#setImagesFolder

I try to add to assets folder with app:lottie_fileName

So I think the animation is bug, because of this I want to know if exist some tools or command to know if animation works.

Answer 1

in my case,my lottie json file contains code fragment like this:

{  
 "id": "image_0", 
 "w": 1241,
 "h": 802,  
 "u": "images/", 
 "p": "image_01.png",  
 "e": 0
}

it means it need image image_01.png to work. and it will look for it from folder images/ .

if you don't provide this images folder location it will throw this exception.

here is the step i solved my problem.

1. add the folder images into assets folder, the folder sturcture:

 +-assets +----images ---------image_01.png

2. add app:lottie_imageAssetsFolder="images" in the xml( or

you can add setImageAssetsFolder("/images"); in code. )

Answer 2

Save the.json file in /assets directory. Use below code:

<com.airbnb.lottie.LottieAnimationView
    android:id="@+id/iv_cooking_anim"
    android:layout_width="200dp"
    android:layout_height="200dp"
    app:lottie_autoPlay="true"
    app:lottie_loop="false"
    app:lottie_enableMergePathsForKitKatAndAbove="true"
    app:lottie_fileName="cooking_anim.json"
    app:layout_constraintBottom_toBottomOf="parent"
    app:layout_constraintEnd_toEndOf="parent"
    app:layout_constraintStart_toStartOf="parent"
    app:layout_constraintTop_toTopOf="parent"
    />