diff --git a/app/src/main/java/io/legado/app/utils/EventBusKt.kt b/app/src/main/java/io/legado/app/utils/EventBusKt.kt
index fa6904ea3..82c3f0f30 100644
--- a/app/src/main/java/io/legado/app/utils/EventBusKt.kt
+++ b/app/src/main/java/io/legado/app/utils/EventBusKt.kt
@@ -13,16 +13,10 @@ inline fun <reified EVENT> postEvent(tag: String, event: EVENT) {
     LiveEventBus.get().with(tag, EVENT::class.java).post(event)
 }
 
-inline fun <reified EVENT> AppCompatActivity.observeEvent(tag: String, crossinline observer: (EVENT) -> Unit) {
-    eventObservable<EVENT>(tag).observe(this, Observer {
-        observer(it)
-    })
-}
-
-/**
- * 只能观察相同类型的事件，可用EventMessage
- */
-inline fun <reified EVENT> AppCompatActivity.observeEvents(vararg tags: String, crossinline observer: (EVENT) -> Unit) {
+inline fun <reified EVENT> AppCompatActivity.observeEvent(
+    vararg tags: String,
+    noinline observer: (EVENT) -> Unit
+) {
     val o = Observer<EVENT> {
         observer(it)
     }
@@ -31,15 +25,10 @@ inline fun <reified EVENT> AppCompatActivity.observeEvents(vararg tags: String,
     }
 }
 
-inline fun <reified EVENT> AppCompatActivity.observeEventSticky(tag: String, crossinline observer: (EVENT) -> Unit) {
-    eventObservable<EVENT>(tag).observeSticky(this, Observer {
-        observer(it)
-    })
-}
 
-inline fun <reified EVENT> AppCompatActivity.observeEventsSticky(
+inline fun <reified EVENT> AppCompatActivity.observeEventSticky(
     vararg tags: String,
-    crossinline observer: (EVENT) -> Unit
+    noinline observer: (EVENT) -> Unit
 ) {
     val o = Observer<EVENT> {
         observer(it)
@@ -49,13 +38,10 @@ inline fun <reified EVENT> AppCompatActivity.observeEventsSticky(
     }
 }
 
-inline fun <reified EVENT> Fragment.observeEvent(tag: String, crossinline observer: (EVENT) -> Unit) {
-    eventObservable<EVENT>(tag).observe(this, Observer {
-        observer(it)
-    })
-}
-
-inline fun <reified EVENT> Fragment.observeEvents(vararg tags: String, crossinline observer: (EVENT) -> Unit) {
+inline fun <reified EVENT> Fragment.observeEvent(
+    vararg tags: String,
+    noinline observer: (EVENT) -> Unit
+) {
     val o = Observer<EVENT> {
         observer(it)
     }
@@ -64,13 +50,10 @@ inline fun <reified EVENT> Fragment.observeEvents(vararg tags: String, crossinli
     }
 }
 
-inline fun <reified EVENT> Fragment.observeEventSticky(tag: String, crossinline observer: (EVENT) -> Unit) {
-    eventObservable<EVENT>(tag).observeSticky(this, Observer {
-        observer(it)
-    })
-}
-
-inline fun <reified EVENT> Fragment.observeEventsSticky(vararg tags: String, crossinline observer: (EVENT) -> Unit) {
+inline fun <reified EVENT> Fragment.observeEventSticky(
+    vararg tags: String,
+    noinline observer: (EVENT) -> Unit
+) {
     val o = Observer<EVENT> {
         observer(it)
     }
@@ -78,3 +61,4 @@ inline fun <reified EVENT> Fragment.observeEventsSticky(vararg tags: String, cro
         eventObservable<EVENT>(it).observeSticky(this, o)
     }
 }
+