diff --git a/demo/src/StorageDemo.ts b/demo/src/StorageDemo.ts
index 36d7586a..a25717be 100644
--- a/demo/src/StorageDemo.ts
+++ b/demo/src/StorageDemo.ts
@@ -7,10 +7,9 @@ class StorageDemo extends Panel {
     stored!: Text
 
     update() {
-        storage(context).getItem(storedKey).then(e => {
-            this.stored.text = '12345'
-            loge('set Text')
-            modal(context).toast('current in then:' + this.stored.isDirty())
+        storage(context).getItem(storedKey, zone).then(e => {
+            this.stored.text = e || ""
+            log('Called in then')
         })
     }
 
@@ -42,8 +41,41 @@ class StorageDemo extends Panel {
                 textColor: Color.WHITE,
                 layoutConfig: layoutConfig().exactly(),
                 onClick: () => {
-                    storage(context).setItem(storedKey, 'This is my stored value').then(e => {
-                        log('Stored')
+                    storage(context).getItem(storedKey, zone).then(e => {
+                        modal(context).prompt({
+                            text: e,
+                            title: "Please input text to store",
+                            defaultText: "Default Value",
+                        }).then(text => {
+                            storage(context).setItem(storedKey, text, zone).then(() => {
+                                this.update()
+                            })
+                        })
+                    })
+                },
+            } as IText),
+            label('remove value').apply({
+                width: 200,
+                height: 50,
+                bgColor: colors[0],
+                textSize: 30,
+                textColor: Color.WHITE,
+                layoutConfig: layoutConfig().exactly(),
+                onClick: () => {
+                    storage(context).remove(storedKey, zone).then(e => {
+                        this.update()
+                    })
+                },
+            } as IText),
+            label('clear values').apply({
+                width: 200,
+                height: 50,
+                bgColor: colors[0],
+                textSize: 30,
+                textColor: Color.WHITE,
+                layoutConfig: layoutConfig().exactly(),
+                onClick: () => {
+                    storage(context).clear(zone).then(e => {
                         this.update()
                     })
                 },
@@ -55,6 +87,7 @@ class StorageDemo extends Panel {
         } as IVLayout)).apply({
             layoutConfig: layoutConfig().atmost(),
         }).in(root)
+        this.update()
     }
 
 }
\ No newline at end of file
diff --git a/iOS/Pod/Classes/Plugin/DoricShaderPlugin.m b/iOS/Pod/Classes/Plugin/DoricShaderPlugin.m
index 73c796e8..a5039ef6 100644
--- a/iOS/Pod/Classes/Plugin/DoricShaderPlugin.m
+++ b/iOS/Pod/Classes/Plugin/DoricShaderPlugin.m
@@ -31,6 +31,9 @@
 @implementation DoricShaderPlugin
 
 - (void)render:(NSDictionary *)argument {
+    if(!argument) {
+        return;
+    }
     __weak typeof(self) _self = self;
     dispatch_async(dispatch_get_main_queue(), ^{
         __strong typeof(_self) self = _self;
diff --git a/iOS/Pod/Classes/Plugin/DoricStoragePlugin.m b/iOS/Pod/Classes/Plugin/DoricStoragePlugin.m
index c0f00c7d..95be9b1d 100644
--- a/iOS/Pod/Classes/Plugin/DoricStoragePlugin.m
+++ b/iOS/Pod/Classes/Plugin/DoricStoragePlugin.m
@@ -33,6 +33,7 @@ - (instancetype)initWithContext:(DoricContext *)doricContext {
     if (self = [super initWithContext:doricContext]) {
         _basePath = [[NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES) firstObject]
                 stringByAppendingPathComponent:@"doric"];
+        _cachedMap = [NSMutableDictionary new];
     }
     return self;
 }
diff --git a/js-framework/src/util/nativeModules.ts b/js-framework/src/util/nativeModules.ts
index fb4ce699..9673b4e7 100644
--- a/js-framework/src/util/nativeModules.ts
+++ b/js-framework/src/util/nativeModules.ts
@@ -163,7 +163,7 @@ export function storage(context: BridgeContext) {
             return context.storage.remove({ key, zone })
         },
         clear: (zone: string) => {
-            return context.storage.clear(zone)
+            return context.storage.clear({ zone })
         },
     }
 }
\ No newline at end of file