diff --git a/.DS_Store b/.DS_Store
deleted file mode 100644
index 4dc96406..00000000
Binary files a/.DS_Store and /dev/null differ
diff --git a/iOS/Example/Example/DemoVC.m b/iOS/Example/Example/DemoVC.m
index 38e215e1..02f7f354 100644
--- a/iOS/Example/Example/DemoVC.m
+++ b/iOS/Example/Example/DemoVC.m
@@ -4,16 +4,10 @@
 //
 
 #import "DemoVC.h"
-#import "DoricContext.h"
-#import "DoricLayouts.h"
-#import "DoricExtensions.h"
-#import "DoricRootNode.h"
-#import "DoricLocalServer.h"
+#import "Doric.h"
 
 @interface DemoVC ()
 @property(nonatomic, copy) NSString *filePath;
-@property(nonatomic, strong) DoricContext *doricContext;
-//@property(nonatomic, strong) DoricLocalServer *localServer;
 @end
 
 @implementation DemoVC
@@ -31,21 +25,15 @@ - (void)viewDidLoad {
     NSString *demoPath = [path stringByAppendingPathComponent:@"demo"];
     NSString *fullPath = [demoPath stringByAppendingPathComponent:self.filePath];
     NSString *jsContent = [NSString stringWithContentsOfFile:fullPath encoding:NSUTF8StringEncoding error:nil];
-    self.doricContext = [[DoricContext alloc] initWithScript:jsContent source:self.filePath];
-    [self.doricContext.rootNode setupRootView:[[DoricStackView new] also:^(DoricStackView *it) {
-        it.backgroundColor = [UIColor whiteColor];
-        it.layoutConfig = [[DoricLayoutConfig alloc]
-                initWithWidth:DoricLayoutAtMost
-                       height:DoricLayoutAtMost
-                       margin:DoricMarginMake(0, 88, 0, 0)
-        ];
+    DoricPanel *panel = [DoricPanel new];
+    [panel.view also:^(UIView *it) {
+        it.width = self.view.width;
+        it.height = self.view.height - 88;
         it.top = 88;
         [self.view addSubview:it];
-    }]];
-    [self.doricContext initContextWithWidth:self.view.width height:self.view.height];
-//    [self.doricContext.driver connectDevKit:@"ws://192.168.11.38:7777"];
-//    self.localServer = [[DoricLocalServer alloc] init];
-//    [self.localServer startWithPort:8910];
+    }];
+    [self addChildViewController:panel];
+    [panel config:jsContent alias:self.filePath];
 }
 
 @end
\ No newline at end of file
diff --git a/iOS/Pod/Classes/Doric.h b/iOS/Pod/Classes/Doric.h
index 21adbf24..705cc394 100644
--- a/iOS/Pod/Classes/Doric.h
+++ b/iOS/Pod/Classes/Doric.h
@@ -19,4 +19,5 @@
 #import "DoricViewNode.h"
 #import "DoricRootNode.h"
 #import "UIView+Doric.h"
-#import "DoricUtil.h"
\ No newline at end of file
+#import "DoricUtil.h"
+#import "DoricPanel.h"
\ No newline at end of file
diff --git a/iOS/Pod/Classes/DoricPanel.h b/iOS/Pod/Classes/DoricPanel.h
new file mode 100644
index 00000000..a262ddce
--- /dev/null
+++ b/iOS/Pod/Classes/DoricPanel.h
@@ -0,0 +1,28 @@
+/*
+ * Copyright [2019] [Doric.Pub]
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+//
+// Created by pengfei.zhou on 2019/11/23.
+//
+
+#import <Foundation/Foundation.h>
+
+#import "DoricContext.h"
+
+@interface DoricPanel : UIViewController
+@property(nonatomic, strong) DoricContext *doricContext;
+
+- (void)config:(NSString *)script alias:(NSString *)alias;
+@end
\ No newline at end of file
diff --git a/iOS/Pod/Classes/DoricPanel.m b/iOS/Pod/Classes/DoricPanel.m
new file mode 100644
index 00000000..d647f1bb
--- /dev/null
+++ b/iOS/Pod/Classes/DoricPanel.m
@@ -0,0 +1,46 @@
+/*
+ * Copyright [2019] [Doric.Pub]
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+//
+// Created by pengfei.zhou on 2019/11/23.
+//
+
+#import "DoricPanel.h"
+#import "Doric.h"
+
+
+@implementation DoricPanel
+
+- (void)config:(NSString *)script alias:(NSString *)alias {
+    self.doricContext = [[[DoricContext alloc] initWithScript:script source:alias] also:^(DoricContext *it) {
+        [it.rootNode setupRootView:[[DoricStackView new] also:^(DoricStackView *it) {
+            it.width = self.view.width;
+            it.height = self.view.height;
+            [self.view addSubview:it];
+        }]];
+        [it initContextWithWidth:self.view.width height:self.view.height];
+    }];
+}
+
+- (void)viewDidAppear:(BOOL)animated {
+    [super viewDidAppear:animated];
+    [self.doricContext onShow];
+}
+
+- (void)viewDidDisappear:(BOOL)animated {
+    [super viewDidDisappear:animated];
+    [self.doricContext onHidden];
+}
+@end
\ No newline at end of file