diff --git a/.gitignore b/.gitignore
index 37fed02d119ec53214e6b8223eb3e1f9d589a0de..f10c2379f8fc29dd8ee6aa44e40cac3fa1345c9a 100644
--- a/.gitignore
+++ b/.gitignore
@@ -87,4 +87,5 @@ metal/models/
 metal/images/
 *.a
 metal/paddle-mobile/paddle-mobile/CPU/libpaddle-mobile.a
-*.xcuserdatad
+*.xcuserdatad/
+xcuserdata/
diff --git a/metal/paddle-mobile/paddle-mobile.xcodeproj/xcuserdata/liuruilong.xcuserdatad/xcschemes/paddle-mobile.xcscheme b/metal/paddle-mobile/paddle-mobile.xcodeproj/xcuserdata/liuruilong.xcuserdatad/xcschemes/paddle-mobile.xcscheme
deleted file mode 100644
index 7c83f42ceca9f68af4f45064cb29c9e3a3512b8e..0000000000000000000000000000000000000000
--- a/metal/paddle-mobile/paddle-mobile.xcodeproj/xcuserdata/liuruilong.xcuserdatad/xcschemes/paddle-mobile.xcscheme
+++ /dev/null
@@ -1,80 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<Scheme
-   LastUpgradeVersion = "0940"
-   version = "1.3">
-   <BuildAction
-      parallelizeBuildables = "YES"
-      buildImplicitDependencies = "YES">
-      <BuildActionEntries>
-         <BuildActionEntry
-            buildForTesting = "YES"
-            buildForRunning = "YES"
-            buildForProfiling = "YES"
-            buildForArchiving = "YES"
-            buildForAnalyzing = "YES">
-            <BuildableReference
-               BuildableIdentifier = "primary"
-               BlueprintIdentifier = "FC039B6920E11C3C0081E9F8"
-               BuildableName = "paddle_mobile.framework"
-               BlueprintName = "paddle-mobile"
-               ReferencedContainer = "container:paddle-mobile.xcodeproj">
-            </BuildableReference>
-         </BuildActionEntry>
-      </BuildActionEntries>
-   </BuildAction>
-   <TestAction
-      buildConfiguration = "Debug"
-      selectedDebuggerIdentifier = "Xcode.DebuggerFoundation.Debugger.LLDB"
-      selectedLauncherIdentifier = "Xcode.DebuggerFoundation.Launcher.LLDB"
-      shouldUseLaunchSchemeArgsEnv = "YES">
-      <Testables>
-      </Testables>
-      <AdditionalOptions>
-      </AdditionalOptions>
-   </TestAction>
-   <LaunchAction
-      buildConfiguration = "Debug"
-      selectedDebuggerIdentifier = "Xcode.DebuggerFoundation.Debugger.LLDB"
-      selectedLauncherIdentifier = "Xcode.DebuggerFoundation.Launcher.LLDB"
-      launchStyle = "0"
-      useCustomWorkingDirectory = "NO"
-      ignoresPersistentStateOnLaunch = "NO"
-      debugDocumentVersioning = "YES"
-      debugServiceExtension = "internal"
-      allowLocationSimulation = "YES">
-      <MacroExpansion>
-         <BuildableReference
-            BuildableIdentifier = "primary"
-            BlueprintIdentifier = "FC039B6920E11C3C0081E9F8"
-            BuildableName = "paddle_mobile.framework"
-            BlueprintName = "paddle-mobile"
-            ReferencedContainer = "container:paddle-mobile.xcodeproj">
-         </BuildableReference>
-      </MacroExpansion>
-      <AdditionalOptions>
-      </AdditionalOptions>
-   </LaunchAction>
-   <ProfileAction
-      buildConfiguration = "Release"
-      shouldUseLaunchSchemeArgsEnv = "YES"
-      savedToolIdentifier = ""
-      useCustomWorkingDirectory = "NO"
-      debugDocumentVersioning = "YES">
-      <MacroExpansion>
-         <BuildableReference
-            BuildableIdentifier = "primary"
-            BlueprintIdentifier = "FC039B6920E11C3C0081E9F8"
-            BuildableName = "paddle_mobile.framework"
-            BlueprintName = "paddle-mobile"
-            ReferencedContainer = "container:paddle-mobile.xcodeproj">
-         </BuildableReference>
-      </MacroExpansion>
-   </ProfileAction>
-   <AnalyzeAction
-      buildConfiguration = "Debug">
-   </AnalyzeAction>
-   <ArchiveAction
-      buildConfiguration = "Release"
-      revealArchiveInOrganizer = "YES">
-   </ArchiveAction>
-</Scheme>
diff --git a/metal/paddle-mobile/paddle-mobile.xcodeproj/xcuserdata/liuruilong.xcuserdatad/xcschemes/xcschememanagement.plist b/metal/paddle-mobile/paddle-mobile.xcodeproj/xcuserdata/liuruilong.xcuserdatad/xcschemes/xcschememanagement.plist
deleted file mode 100644
index 067e2a5bea9382a8f2ffebfd809d2c8217631975..0000000000000000000000000000000000000000
--- a/metal/paddle-mobile/paddle-mobile.xcodeproj/xcuserdata/liuruilong.xcuserdatad/xcschemes/xcschememanagement.plist
+++ /dev/null
@@ -1,22 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
-<plist version="1.0">
-<dict>
-	<key>SchemeUserState</key>
-	<dict>
-		<key>paddle-mobile.xcscheme</key>
-		<dict>
-			<key>orderHint</key>
-			<integer>0</integer>
-		</dict>
-	</dict>
-	<key>SuppressBuildableAutocreation</key>
-	<dict>
-		<key>FC039B6920E11C3C0081E9F8</key>
-		<dict>
-			<key>primary</key>
-			<true/>
-		</dict>
-	</dict>
-</dict>
-</plist>
diff --git a/metal/paddle-mobile/paddle-mobile.xcodeproj/xcuserdata/xiaohaichun.xcuserdatad/xcschemes/paddle-mobile.xcscheme b/metal/paddle-mobile/paddle-mobile.xcodeproj/xcuserdata/xiaohaichun.xcuserdatad/xcschemes/paddle-mobile.xcscheme
deleted file mode 100644
index d36d4c485d931d1df4e2d285a67fe33a99414190..0000000000000000000000000000000000000000
--- a/metal/paddle-mobile/paddle-mobile.xcodeproj/xcuserdata/xiaohaichun.xcuserdatad/xcschemes/paddle-mobile.xcscheme
+++ /dev/null
@@ -1,80 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<Scheme
-   LastUpgradeVersion = "0940"
-   version = "1.3">
-   <BuildAction
-      parallelizeBuildables = "YES"
-      buildImplicitDependencies = "YES">
-      <BuildActionEntries>
-         <BuildActionEntry
-            buildForTesting = "YES"
-            buildForRunning = "YES"
-            buildForProfiling = "YES"
-            buildForArchiving = "YES"
-            buildForAnalyzing = "YES">
-            <BuildableReference
-               BuildableIdentifier = "primary"
-               BlueprintIdentifier = "FC039B6920E11C3C0081E9F8"
-               BuildableName = "paddle_mobile.framework"
-               BlueprintName = "paddle-mobile"
-               ReferencedContainer = "container:paddle-mobile.xcodeproj">
-            </BuildableReference>
-         </BuildActionEntry>
-      </BuildActionEntries>
-   </BuildAction>
-   <TestAction
-      buildConfiguration = "Debug"
-      selectedDebuggerIdentifier = "Xcode.DebuggerFoundation.Debugger.LLDB"
-      selectedLauncherIdentifier = "Xcode.DebuggerFoundation.Launcher.LLDB"
-      shouldUseLaunchSchemeArgsEnv = "YES">
-      <Testables>
-      </Testables>
-      <AdditionalOptions>
-      </AdditionalOptions>
-   </TestAction>
-   <LaunchAction
-      buildConfiguration = "Release"
-      selectedDebuggerIdentifier = "Xcode.DebuggerFoundation.Debugger.LLDB"
-      selectedLauncherIdentifier = "Xcode.DebuggerFoundation.Launcher.LLDB"
-      launchStyle = "0"
-      useCustomWorkingDirectory = "NO"
-      ignoresPersistentStateOnLaunch = "NO"
-      debugDocumentVersioning = "YES"
-      debugServiceExtension = "internal"
-      allowLocationSimulation = "YES">
-      <MacroExpansion>
-         <BuildableReference
-            BuildableIdentifier = "primary"
-            BlueprintIdentifier = "FC039B6920E11C3C0081E9F8"
-            BuildableName = "paddle_mobile.framework"
-            BlueprintName = "paddle-mobile"
-            ReferencedContainer = "container:paddle-mobile.xcodeproj">
-         </BuildableReference>
-      </MacroExpansion>
-      <AdditionalOptions>
-      </AdditionalOptions>
-   </LaunchAction>
-   <ProfileAction
-      buildConfiguration = "Release"
-      shouldUseLaunchSchemeArgsEnv = "YES"
-      savedToolIdentifier = ""
-      useCustomWorkingDirectory = "NO"
-      debugDocumentVersioning = "YES">
-      <MacroExpansion>
-         <BuildableReference
-            BuildableIdentifier = "primary"
-            BlueprintIdentifier = "FC039B6920E11C3C0081E9F8"
-            BuildableName = "paddle_mobile.framework"
-            BlueprintName = "paddle-mobile"
-            ReferencedContainer = "container:paddle-mobile.xcodeproj">
-         </BuildableReference>
-      </MacroExpansion>
-   </ProfileAction>
-   <AnalyzeAction
-      buildConfiguration = "Debug">
-   </AnalyzeAction>
-   <ArchiveAction
-      buildConfiguration = "Release"
-      revealArchiveInOrganizer = "YES">
-   </ArchiveAction>
-</Scheme>
diff --git a/metal/paddle-mobile/paddle-mobile.xcodeproj/xcuserdata/xiaohaichun.xcuserdatad/xcschemes/xcschememanagement.plist b/metal/paddle-mobile/paddle-mobile.xcodeproj/xcuserdata/xiaohaichun.xcuserdatad/xcschemes/xcschememanagement.plist
deleted file mode 100644
index 50f16e4d7cfc755905c68ced31769d3ac1dd1049..0000000000000000000000000000000000000000
--- a/metal/paddle-mobile/paddle-mobile.xcodeproj/xcuserdata/xiaohaichun.xcuserdatad/xcschemes/xcschememanagement.plist
+++ /dev/null
@@ -1,14 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
-<plist version="1.0">
-<dict>
-	<key>SchemeUserState</key>
-	<dict>
-		<key>paddle-mobile.xcscheme</key>
-		<dict>
-			<key>orderHint</key>
-			<integer>4</integer>
-		</dict>
-	</dict>
-</dict>
-</plist>