- Added @keep annotation for companion object

tingyik90 · May 11, 2019 · 53c3781 · 53c3781
1 parent 3c14116
commit 53c3781
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Showing 3 changed files with 13 additions and 1 deletion.
diff --git a/lib/src/main/java/com/tingyik90/snackprogressbar/SnackProgressBar.kt b/lib/src/main/java/com/tingyik90/snackprogressbar/SnackProgressBar.kt
@@ -26,7 +26,9 @@ class SnackProgressBar(@SnackProgressBarType private var type: Int, private var
     annotation class SnackProgressBarType
 
     /* companion object */
+    @Keep
     companion object {
+
         /**
          * SnackProgressBar layout with message only.
          */
@@ -39,8 +41,11 @@ class SnackProgressBar(@SnackProgressBarType private var type: Int, private var
          * SnackProgressBar layout with message and circular ProgressBar.
          */
         const val TYPE_CIRCULAR = 300
-
+        /**
+         * Placeholder for no icon.
+         */
         internal const val DEFAULT_ICON_RES_ID = -1
+
     }
 
     /**

diff --git a/lib/src/main/java/com/tingyik90/snackprogressbar/SnackProgressBarCore.kt b/lib/src/main/java/com/tingyik90/snackprogressbar/SnackProgressBarCore.kt
@@ -42,7 +42,9 @@ internal class SnackProgressBarCore private constructor(
     private val runnable = Runnable { dismiss() }
 
     /* companion object */
+    @Keep
     companion object {
+
         /**
          * Prepares SnackProgressBarCore.
          *
@@ -83,6 +85,7 @@ internal class SnackProgressBarCore private constructor(
             snackProgressBarCore.updateTo(snackProgressBar)
             return snackProgressBarCore
         }
+
     }
 
     /**

diff --git a/lib/src/main/java/com/tingyik90/snackprogressbar/SnackProgressBarManager.kt b/lib/src/main/java/com/tingyik90/snackprogressbar/SnackProgressBarManager.kt
@@ -57,6 +57,9 @@ class SnackProgressBarManager(providedView: View, lifecycleOwner: LifecycleOwner
     }
 
     /* companion object */
+    // @Keep annotation is required to prevent proguard from removing the companion object.
+    // See https://stackoverflow.com/a/53863656/3584439.
+    @Keep
     companion object {
 
         @Retention(AnnotationRetention.SOURCE)
@@ -112,6 +115,7 @@ class SnackProgressBarManager(providedView: View, lifecycleOwner: LifecycleOwner
          * Default displayId
          */
         private const val NO_DISPLAY_ID = -1
+
     }
 
     /* parameters */