diff --git a/ios/sdk/WeexSDK.xcodeproj/project.pbxproj b/ios/sdk/WeexSDK.xcodeproj/project.pbxproj
index 0cfdfea169..205381841a 100644
--- a/ios/sdk/WeexSDK.xcodeproj/project.pbxproj
+++ b/ios/sdk/WeexSDK.xcodeproj/project.pbxproj
@@ -318,6 +318,12 @@
 		B8394F3821468AF100CA1EFF /* render_action_trigger_vsync.h in Headers */ = {isa = PBXBuildFile; fileRef = B8394F3521468AF100CA1EFF /* render_action_trigger_vsync.h */; };
 		B8394F3921468AF100CA1EFF /* render_action_trigger_vsync.cpp in Sources */ = {isa = PBXBuildFile; fileRef = B8394F3621468AF100CA1EFF /* render_action_trigger_vsync.cpp */; };
 		B8394F3A21468AF100CA1EFF /* render_action_trigger_vsync.cpp in Sources */ = {isa = PBXBuildFile; fileRef = B8394F3621468AF100CA1EFF /* render_action_trigger_vsync.cpp */; };
+		B858E1272158BE0A00722366 /* render_document.cpp in Sources */ = {isa = PBXBuildFile; fileRef = B858E1252158BE0900722366 /* render_document.cpp */; };
+		B858E1282158BE0A00722366 /* render_document.cpp in Sources */ = {isa = PBXBuildFile; fileRef = B858E1252158BE0900722366 /* render_document.cpp */; };
+		B858E1292158BE0A00722366 /* render_document.h in Headers */ = {isa = PBXBuildFile; fileRef = B858E1262158BE0A00722366 /* render_document.h */; };
+		B858E12A2158BE0A00722366 /* render_document.h in Headers */ = {isa = PBXBuildFile; fileRef = B858E1262158BE0A00722366 /* render_document.h */; };
+		B858E12C2158BE1000722366 /* render_document_factory.h in Headers */ = {isa = PBXBuildFile; fileRef = B858E12B2158BE1000722366 /* render_document_factory.h */; };
+		B858E12D2158BE1000722366 /* render_document_factory.h in Headers */ = {isa = PBXBuildFile; fileRef = B858E12B2158BE1000722366 /* render_document_factory.h */; };
 		B85ED3032126715100EBEC11 /* WXRecyclerComponent.h in Headers */ = {isa = PBXBuildFile; fileRef = 745B2D601E5A8E1E0092D38A /* WXRecyclerComponent.h */; };
 		B863DF322107308000EA887D /* WXBridgeContext.m in Sources */ = {isa = PBXBuildFile; fileRef = B863DF312107307F00EA887D /* WXBridgeContext.m */; };
 		B863DF332107313400EA887D /* WXBridgeContext.m in Sources */ = {isa = PBXBuildFile; fileRef = B863DF312107307F00EA887D /* WXBridgeContext.m */; };
@@ -1304,6 +1310,9 @@
 		9B9E74781FA2DB5800DAAEA9 /* WXTestBridgeMethodDummy.m */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.objc; path = WXTestBridgeMethodDummy.m; sourceTree = "<group>"; };
 		B8394F3521468AF100CA1EFF /* render_action_trigger_vsync.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = render_action_trigger_vsync.h; sourceTree = "<group>"; };
 		B8394F3621468AF100CA1EFF /* render_action_trigger_vsync.cpp */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; path = render_action_trigger_vsync.cpp; sourceTree = "<group>"; };
+		B858E1252158BE0900722366 /* render_document.cpp */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; path = render_document.cpp; sourceTree = "<group>"; };
+		B858E1262158BE0A00722366 /* render_document.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = render_document.h; sourceTree = "<group>"; };
+		B858E12B2158BE1000722366 /* render_document_factory.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = render_document_factory.h; sourceTree = "<group>"; };
 		B863DF312107307F00EA887D /* WXBridgeContext.m */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.objc; path = WXBridgeContext.m; sourceTree = "<group>"; };
 		B87B9E7B21539B3300B6DC61 /* WXVersion.h */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; path = WXVersion.h; sourceTree = "<group>"; };
 		B87B9E7C21539B3300B6DC61 /* WXVersion.m */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.objc; path = WXVersion.m; sourceTree = "<group>"; };
@@ -2453,6 +2462,8 @@
 		B8D66B572125572F003960BD /* node */ = {
 			isa = PBXGroup;
 			children = (
+				B858E1252158BE0900722366 /* render_document.cpp */,
+				B858E1262158BE0A00722366 /* render_document.h */,
 				B8D66B582125572F003960BD /* render_cell.h */,
 				B8D66B592125572F003960BD /* render_text.cpp */,
 				B8D66B5A2125572F003960BD /* render_mask.cpp */,
@@ -2474,6 +2485,7 @@
 		B8D66B652125572F003960BD /* factory */ = {
 			isa = PBXGroup;
 			children = (
+				B858E12B2158BE1000722366 /* render_document_factory.h */,
 				B8D66B662125572F003960BD /* render_mask_factory.h */,
 				B8D66B672125572F003960BD /* render_text_factory.h */,
 				B8D66B682125572F003960BD /* render_scroller_factory.h */,
@@ -2753,6 +2765,7 @@
 				77D1614B1C02E3790010B15B /* WXConvert.h in Headers */,
 				1746EA7320E9D253007E55BD /* WXComponent_performance.h in Headers */,
 				59A596221CB6311F0012CD52 /* WXNavigatorModule.h in Headers */,
+				B858E12C2158BE1000722366 /* render_document_factory.h in Headers */,
 				B8F2C7082133A83C00635B37 /* rax_parser_context.h in Headers */,
 				33CE190E2153443000CF9670 /* WXJSFrameworkLoadDefaultImpl.h in Headers */,
 				C47B78CE1F2998EE001D3B0C /* WXExtendCallNativeManager.h in Headers */,
@@ -2814,6 +2827,7 @@
 				C4F0127D1E1502A6003378D0 /* WXWebSocketHandler.h in Headers */,
 				B8D66C9D21255730003960BD /* json11.hpp in Headers */,
 				DC03ADBA1D508719003F76E7 /* WXTextAreaComponent.h in Headers */,
+				B858E1292158BE0A00722366 /* render_document.h in Headers */,
 				B8D66C5721255730003960BD /* render_action_layout.h in Headers */,
 				2AC750241C7565690041D390 /* WXIndicatorComponent.h in Headers */,
 				B8F2C6E82133A83C00635B37 /* class_array.h in Headers */,
@@ -3013,6 +3027,7 @@
 				B8D66C8821255730003960BD /* simple_render_factory.h in Headers */,
 				DCA445A41EFA570E00D0CFA8 /* WXSDKInstance.h in Headers */,
 				DCA445C51EFA57E800D0CFA8 /* WXAComponent.h in Headers */,
+				B858E12A2158BE0A00722366 /* render_document.h in Headers */,
 				B8D66C4A21255730003960BD /* render_action_interface.h in Headers */,
 				B8D66C002125572F003960BD /* constants_name.h in Headers */,
 				DCA445B11EFA576800D0CFA8 /* WXLog.h in Headers */,
@@ -3159,6 +3174,7 @@
 				B8D66BE62125572F003960BD /* object.h in Headers */,
 				DCA4461A1EFA5AA000D0CFA8 /* WXInvocationConfig.h in Headers */,
 				DCA445DC1EFA59AD00D0CFA8 /* WXRecyclerDataController.h in Headers */,
+				B858E12D2158BE1000722366 /* render_document_factory.h in Headers */,
 				DCA446191EFA5A9E00D0CFA8 /* WXServiceFactory.h in Headers */,
 				DCA446121EFA5A8A00D0CFA8 /* WXComponentMethod.h in Headers */,
 				33CE19142153444900CF9670 /* WXJSFrameworkLoadProtocol.h in Headers */,
@@ -3540,6 +3556,7 @@
 				B8D66C4D21255730003960BD /* render_action_move_element.cpp in Sources */,
 				742AD7341DF98C45007DC46C /* WXResourceResponse.m in Sources */,
 				B87B9E7F21539B3300B6DC61 /* WXVersion.m in Sources */,
+				B858E1272158BE0A00722366 /* render_document.cpp in Sources */,
 				77E65A161C155EB5008B8775 /* WXTextComponent.mm in Sources */,
 				C4D872261E5DDF7500E39BC1 /* WXBoxShadow.m in Sources */,
 				B8D66BB32125572F003960BD /* parser.cc in Sources */,
@@ -3670,6 +3687,7 @@
 				DCA445301EFA55B300D0CFA8 /* WXComponent+Events.m in Sources */,
 				DCA445311EFA55B300D0CFA8 /* WXComponent+BoxShadow.m in Sources */,
 				DCA445321EFA55B300D0CFA8 /* WXInnerLayer.m in Sources */,
+				B858E1282158BE0A00722366 /* render_document.cpp in Sources */,
 				B8D66BFA2125572F003960BD /* exec_state.cc in Sources */,
 				B8D66CAC21255730003960BD /* wson_util.cpp in Sources */,
 				DCA445331EFA55B300D0CFA8 /* WXDisplayQueue.m in Sources */,
diff --git a/weex_core/Source/core/render/node/render_document.cpp b/weex_core/Source/core/render/node/render_document.cpp
index b98e14a0df..29f85ad361 100644
--- a/weex_core/Source/core/render/node/render_document.cpp
+++ b/weex_core/Source/core/render/node/render_document.cpp
@@ -67,8 +67,8 @@ namespace WeexCore {
 
         Index count = documentChilds.size();
         index = index >= count ? -1 : index;
-        if(index < 0){
-            index = count;
+        if (index < 0) {
+            index = static_cast<int>(count);
         }
         documentChilds.insert(documentChilds.begin() + count, child);
         child->setParent(this, child);
diff --git a/weex_core/Source/core/render/page/render_page.cpp b/weex_core/Source/core/render/page/render_page.cpp
index 644f891950..a9007a05e7 100644
--- a/weex_core/Source/core/render/page/render_page.cpp
+++ b/weex_core/Source/core/render/page/render_page.cpp
@@ -16,7 +16,7 @@
  * specific language governing permissions and limitations
  * under the License.
  */
-#include <android/base/log_utils.h>
+
 #include "core/render/page/render_page.h"
 #include "core/render/node/render_document.h"
 #include "base/TimeUtils.h"