feat: add support for animated AVIF images (#637)

Refs: #621

Author: naveensingh

app/build.gradle.kts

@@ -154,6 +154,7 @@ dependencies {
     implementation(libs.androidx.swiperefreshlayout)
     implementation(libs.awebp)
     implementation(libs.apng)
+    implementation(libs.avif)
     implementation(libs.avif.integration)
     implementation(libs.jxl.integration)
     implementation(libs.okio)

app/src/main/kotlin/org/fossify/gallery/extensions/Context.kt

@@ -698,7 +698,6 @@ fun Context.loadImageBase(
     }
 
     // animation is only supported without rounded corners and the file must be a GIF or WEBP.
-    // Glide doesn't support animated AVIF: https://bumptech.github.io/glide/int/avif.html
     if (animate && roundCorners == ROUNDED_CORNERS_NONE && (path.isGif() || path.isWebP())) {
         // this is required to make glide cache aware of changes
         options.decode(Drawable::class.java)

app/src/main/kotlin/org/fossify/gallery/fragments/PhotoFragment.kt

@@ -44,6 +44,7 @@ import com.davemorrissey.labs.subscaleview.ImageDecoder
 import com.davemorrissey.labs.subscaleview.ImageRegionDecoder
 import com.davemorrissey.labs.subscaleview.SubsamplingScaleImageView
 import com.github.penfeizhou.animation.apng.APNGDrawable
+import com.github.penfeizhou.animation.avif.AVIFDrawable
 import com.github.penfeizhou.animation.webp.WebPDrawable
 import com.squareup.picasso.Callback
 import com.squareup.picasso.Picasso
@@ -348,7 +349,9 @@ class PhotoFragment : ViewPagerFragment() {
         super.setMenuVisibility(menuVisible)
         mIsFragmentVisible = menuVisible
         if (mWasInit) {
-            if (!mMedium.isGIF() && !mMedium.isWebP() && !mMedium.isApng()) {
+            val isAnimatedContent =
+                mMedium.isGIF() || mMedium.isApng() || mMedium.isAvif() || mMedium.isWebP()
+            if (isAnimatedContent) {
                 photoFragmentVisibilityChanged(menuVisible)
             }
         }
@@ -419,6 +422,7 @@ class PhotoFragment : ViewPagerFragment() {
                     mMedium.isGIF() -> loadGif()
                     mMedium.isSVG() -> loadSVG()
                     mMedium.isApng() -> loadAPNG()
+                    mMedium.isAvif() -> loadAVIF()
                     else -> loadBitmap()
                 }
             }
@@ -465,6 +469,13 @@ class PhotoFragment : ViewPagerFragment() {
         }
     }
 
+    private fun loadAVIF() {
+        if (context != null) {
+            val drawable = AVIFDrawable.fromFile(mMedium.path)
+            binding.gesturesView.setImageDrawable(drawable)
+        }
+    }
+
     private fun loadBitmap(addZoomableView: Boolean = true) {
         if (context == null) {
             return

app/src/main/kotlin/org/fossify/gallery/models/Medium.kt

@@ -52,6 +52,8 @@ data class Medium(
 
     fun isApng() = name.isApng()
 
+    fun isAvif() = name.endsWith(".avif", true) // switch to commons extension.
+
     fun isHidden() = name.startsWith('.')
 
     fun isHeic() = name.lowercase(Locale.getDefault()).endsWith(".heic") || name.lowercase(Locale.getDefault()).endsWith(".heif")

gradle/libs.versions.toml

@@ -20,8 +20,7 @@ gradlePlugins-agp = "8.11.1"
 #Other
 androidGifDrawable = "1.2.29"
 androidImageCropper = "4.6.0"
-apng = "3.0.5"
-awebp = "3.0.5"
+animationAndroid = "3.0.5"
 glideCompiler = "5.0.3"
 zjupureWebpdecoder = "2.7.4.16.0"
 jxlDecoder = "2.3.0.1"
@@ -65,8 +64,9 @@ androidphotofilters = { module = "com.github.naveensingh:androidphotofilters", v
 okhttp = { module = "com.squareup.okhttp3:okhttp", version.ref = "okhttp" }
 okio = { module = "com.squareup.okio:okio", version.ref = "okio" }
 sanselan = { module = "org.apache.sanselan:sanselan", version.ref = "sanselan" }
-apng = { module = "com.github.penfeizhou.android.animation:apng", version.ref = "apng" }
-awebp = { module = "com.github.penfeizhou.android.animation:awebp", version.ref = "awebp" }
+apng = { module = "com.github.penfeizhou.android.animation:apng", version.ref = "animationAndroid" }
+awebp = { module = "com.github.penfeizhou.android.animation:awebp", version.ref = "animationAndroid" }
+avif = { module = "com.github.penfeizhou.android.animation:avif", version.ref = "animationAndroid" }
 glide-compiler = { module = "com.github.bumptech.glide:ksp", version.ref = "glideCompiler" }
 zjupure-webpdecoder = { module = "com.github.zjupure:webpdecoder", version.ref = "zjupureWebpdecoder" }
 picasso = { module = "com.squareup.picasso:picasso", version.ref = "picasso" }