测试

app/src/main/java/necer/ncalendardemo/activity/WeekActivity.java

@@ -28,12 +28,17 @@ protected void onCreate(@Nullable Bundle savedInstanceState) {
 
 
 
-
     }
 
     public void setDate(View view) {
+        weekCalendar.setVisibility(View.VISIBLE);
+        weekCalendar.post(new Runnable() {
+            @Override
+            public void run() {
+                weekCalendar.setDate("2018-01-01");
+            }
+        });
 
-        weekCalendar.setDate("2018-01-01");
 
     }
 }

app/src/main/res/layout/activity_week.xml

@@ -1,17 +1,20 @@
 <?xml version="1.0" encoding="utf-8"?>
 <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
-    android:orientation="vertical" android:layout_width="match_parent"
-    android:layout_height="match_parent">
-<Button
-    android:layout_width="wrap_content"
-    android:layout_height="wrap_content"
-    android:text="设置日期"
-    android:onClick="setDate"/>
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:orientation="vertical">
+
+    <Button
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:onClick="setDate"
+        android:text="设置日期" />
 
 
     <com.necer.ncalendar.calendar.WeekCalendar
         android:id="@+id/weekCalendar"
         android:layout_width="match_parent"
-        android:layout_height="50dp"></com.necer.ncalendar.calendar.WeekCalendar>
+        android:layout_height="50dp"
+        android:visibility="gone"></com.necer.ncalendar.calendar.WeekCalendar>
 
 </LinearLayout>