Dependencies of application

apng_library/src/main/java/oupson/apng/ApngAnimator.kt

@@ -95,9 +95,7 @@ fun ImageView.loadApng(@RawRes res : Int, speed : Float? = null, apngAnimatorOpt
  */
 class ApngAnimator(private val context: Context?) {
     var isPlaying = true
-        private set(value) {
-            field = value
-        }
+        private set
 
     var speed: Float? = null
         set(value)  {
@@ -222,7 +220,6 @@ class ApngAnimator(private val context: Context?) {
             input.read(bytes)
             input.close()
             if (isPng(bytes)) {
-                isApng = true
                 this@ApngAnimator.speed = speed
                 scaleType = apngAnimatorOptions?.scaleType
                 // Download PNG
@@ -231,12 +228,14 @@ class ApngAnimator(private val context: Context?) {
                 APNGDisassembler.disassemble(inputStream).also {
                     inputStream.close()
                     if (it.isApng) {
+                        isApng = true
                         it.frames.also {frames ->
                             draw(frames).apply {
                                 setupAnimationDrawableAndStart(this)
                             }
                         }
                     } else {
+                        isApng = false
                         GlobalScope.launch(Dispatchers.Main) {
                             imageView?.setImageBitmap(it.cover)
                         }

app-test/build.gradle

@@ -34,7 +34,7 @@ dependencies {
     implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version"
 
     //noinspection GradleCompatible
-    implementation 'androidx.appcompat:appcompat:1.0.2'
+    implementation 'androidx.appcompat:appcompat:1.1.0'
     implementation 'androidx.constraintlayout:constraintlayout:1.1.3'
     testImplementation 'junit:junit:4.12'
     androidTestImplementation 'androidx.test:runner:1.2.0'
@@ -48,5 +48,5 @@ dependencies {
     implementation "org.jetbrains.anko:anko-appcompat-v7:$anko_version"
     implementation "org.jetbrains.anko:anko-design:$anko_version"
     implementation "org.jetbrains.anko:anko-constraint-layout:$anko_version"
-    implementation 'org.jetbrains.kotlinx:kotlinx-coroutines-android:1.3.0-M1'
+    implementation 'org.jetbrains.kotlinx:kotlinx-coroutines-android:1.3.2'
 }

app-test/src/main/java/oupson/apngcreator/Main2Activity.kt

@@ -53,10 +53,12 @@ class Main2Activity : AppCompatActivity() {
         val animator = imageView.loadApng(uri, null)
         imageView.onClick {
             try {
-                if (animator.isPlaying) {
-                    animator.pause()
-                } else {
-                    animator.play()
+                if (animator.isApng) {
+                    if (animator.isPlaying) {
+                        animator.pause()
+                    } else {
+                        animator.play()
+                    }
                 }
             } catch (e: Exception) {
                 e.printStackTrace()