diff --git a/RxLifecycleDemo/RxLifecycleDemo.apk b/RxLifecycleDemo/RxLifecycleDemo.apk
new file mode 100644
index 0000000..8e9046d
Binary files /dev/null and b/RxLifecycleDemo/RxLifecycleDemo.apk differ
diff --git a/RxLifecycleDemo/app/src/main/java/com/yl/rxlifecycledemo/RxlifecycleComponentsActivity.java b/RxLifecycleDemo/app/src/main/java/com/yl/rxlifecycledemo/RxlifecycleComponentsActivity.java
index e138bde..96d3654 100644
--- a/RxLifecycleDemo/app/src/main/java/com/yl/rxlifecycledemo/RxlifecycleComponentsActivity.java
+++ b/RxLifecycleDemo/app/src/main/java/com/yl/rxlifecycledemo/RxlifecycleComponentsActivity.java
@@ -34,6 +34,7 @@ protected void onCreate(@Nullable Bundle savedInstanceState) {
     }
 
     private void initData() {
+        // 每隔1s执行一次事件
         Observable.interval(1, TimeUnit.SECONDS)
                 .subscribeOn(Schedulers.io())
                 .observeOn(AndroidSchedulers.mainThread())