Display Animated GIF

Question

I want to display animated GIF images in my aplication. As I found out the hard way Android doesn\'t support animated GIF natively.

However it can display animations

Answer 1

For only android API (Android Pie)28 and +

use AnimatedImageDrawable as

// ImageView from layout
val ima : ImageView = findViewById(R.id.img_gif)
// create AnimatedDrawable 
val decodedAnimation = ImageDecoder.decodeDrawable(
        // create ImageDecoder.Source object
        ImageDecoder.createSource(resources, R.drawable.tenor))
// set the drawble as image source of ImageView
ima.setImageDrawable(decodedAnimation)
// play the animation
(decodedAnimation as? AnimatedImageDrawable)?.start()

XML code, add a ImageView

    app:layout_constraintLeft_toLeftOf="parent"
    app:layout_constraintRight_toRightOf="parent"
    android:layout_width="200dp"
    android:layout_height="200dp" />

AnimatedImageDrawable is a child of Drawable and created by ImageDecoder.decodeDrawable

ImageDecoder.decodeDrawable which further required the instance of ImageDecoder.Source created by ImageDecoder.createSource.

ImageDecoder.createSource can only take source as a name, ByteBuffer, File, resourceId, URI, ContentResolver to create source object and uses it to create AnimatedImageDrawable as Drawable (polymorphic call)

static ImageDecoder.Source  createSource(AssetManager assets, String fileName)
static ImageDecoder.Source  createSource(ByteBuffer buffer)
static ImageDecoder.Source  createSource(File file)
static ImageDecoder.Source  createSource(Resources res, int resId)
static ImageDecoder.Source  createSource(ContentResolver cr, Uri uri)

Note: You can also create Bitmap using ImageDecoder#decodeBitmap.

Output:

AnimatedDrawable also supports resizing, frame and color manipulation