diff --git a/app/src/main/java/com/ray650128/gstreamer_demo_app/GridVideoFragment.kt b/app/src/main/java/com/ray650128/gstreamer_demo_app/GridVideoFragment.kt
index f4ed685..b3e5b00 100644
--- a/app/src/main/java/com/ray650128/gstreamer_demo_app/GridVideoFragment.kt
+++ b/app/src/main/java/com/ray650128/gstreamer_demo_app/GridVideoFragment.kt
@@ -162,19 +162,13 @@ class GridVideoFragment : Fragment(), GstCallback {
 
     private fun playAll() {
         for (index in data.indices) {
-            gstPlayers[index]?.apply {
-                play()
-            }
+            gstPlayers[index]?.play()
         }
     }
 
     private fun stopAll() {
         for (index in data.indices) {
-            try {
-                gstPlayers[index]?.stop()
-            } catch (e: IllegalStateException) {
-                e.printStackTrace()
-            }
+            gstPlayers[index]?.stop()
         }
     }