[Android] Keep all material classes

[Geoffrey Métais]

vlc-android | branch: 3.1.x | Geoffrey Métais <geoffrey at videolan.org> | Tue Mar 19 13:44:39 2019 +0100| [0bb7c56fa7ed707b4f3d12d0f751d99156887776] | committer: Geoffrey Métais

Keep all material classes

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> https://code.videolan.org/videolan/vlc-android/commit/0bb7c56fa7ed707b4f3d12d0f751d99156887776
---

 vlc-android/proguard.cfg | 1 +
 1 file changed, 1 insertion(+)

diff --git a/vlc-android/proguard.cfg b/vlc-android/proguard.cfg
index f387888ea..92acb25f9 100644
--- a/vlc-android/proguard.cfg
+++ b/vlc-android/proguard.cfg
@@ -98,3 +98,4 @@
 # Top-level functions that can only be used by Kotlin.
 -dontwarn retrofit2.-KotlinExtensions
 
+-keep class com.google.android.material.** { *; }
\ No newline at end of file