diff --git a/dsBridge.podspec b/dsBridge.podspec
index 27d5839..4a403a2 100644
--- a/dsBridge.podspec
+++ b/dsBridge.podspec
@@ -64,11 +64,11 @@ Pod::Spec.new do |s|
   #  the deployment target. You can optionally include the target after the platform.
   #
 
-  s.platform     = :ios, "8.0"
+  s.platform     = :ios, "10.0"
   # s.platform     = :ios, "5.0"
 
   #  When using multiple platforms
-  s.ios.deployment_target = "8.0"
+  s.ios.deployment_target = "10.0"
   # s.osx.deployment_target = "10.7"
   # s.watchos.deployment_target = "2.0"
   # s.tvos.deployment_target = "9.0"
diff --git a/dsbridge.xcodeproj/project.pbxproj b/dsbridge.xcodeproj/project.pbxproj
index b9da3f3..99b0323 100644
--- a/dsbridge.xcodeproj/project.pbxproj
+++ b/dsbridge.xcodeproj/project.pbxproj
@@ -461,12 +461,13 @@
 				DEFINES_MODULE = YES;
 				DEVELOPMENT_TEAM = XTLLEQZMD7;
 				INFOPLIST_FILE = dsbridgedemo/Info.plist;
+				IPHONEOS_DEPLOYMENT_TARGET = 10.0;
 				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/Frameworks";
 				PRODUCT_BUNDLE_IDENTIFIER = wendu.dsbridgedemo.xx;
 				PRODUCT_NAME = "$(TARGET_NAME)";
 				SWIFT_OBJC_BRIDGING_HEADER = "dsbridgedemo/dsbridgedemo-Bridging-Header.h";
 				SWIFT_OPTIMIZATION_LEVEL = "-Onone";
-				SWIFT_VERSION = 3.0;
+				SWIFT_VERSION = 4.2;
 			};
 			name = Debug;
 		};
@@ -479,11 +480,12 @@
 				DEFINES_MODULE = YES;
 				DEVELOPMENT_TEAM = XTLLEQZMD7;
 				INFOPLIST_FILE = dsbridgedemo/Info.plist;
+				IPHONEOS_DEPLOYMENT_TARGET = 10.0;
 				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/Frameworks";
 				PRODUCT_BUNDLE_IDENTIFIER = wendu.dsbridgedemo.xx;
 				PRODUCT_NAME = "$(TARGET_NAME)";
 				SWIFT_OBJC_BRIDGING_HEADER = "dsbridgedemo/dsbridgedemo-Bridging-Header.h";
-				SWIFT_VERSION = 3.0;
+				SWIFT_VERSION = 4.2;
 			};
 			name = Release;
 		};
diff --git a/dsbridge/DWKWebView.m b/dsbridge/DWKWebView.m
index 1bfbbff..c6c25ea 100644
--- a/dsbridge/DWKWebView.m
+++ b/dsbridge/DWKWebView.m
@@ -10,14 +10,12 @@ @implementation DWKWebView
     void (^confirmHandler)(BOOL);
     void (^promptHandler)(NSString *);
     void(^javascriptCloseWindowListener)(void);
-    int dialogType;
     int callId;
     bool jsDialogBlock;
     NSMutableDictionary<NSString *,id> *javaScriptNamespaceInterfaces;
     NSMutableDictionary *handerMap;
     NSMutableArray<DSCallInfo *> * callInfoList;
     NSDictionary<NSString*,NSString*> *dialogTextDic;
-    UITextField *txtName;
     UInt64 lastCallTime ;
     NSString *jsCache;
     bool isPending;
@@ -27,8 +25,6 @@ @implementation DWKWebView
 
 -(instancetype)initWithFrame:(CGRect)frame configuration:(WKWebViewConfiguration *)configuration
 {
-    txtName=nil;
-    dialogType=0;
     callId=0;
     alertHandler=nil;
     confirmHandler=nil;
@@ -92,21 +88,27 @@ - (void)webView:(WKWebView *)webView runJavaScriptTextInputPanelWithPrompt:(NSSt
                              initiatedByFrame:frame
                             completionHandler:completionHandler];
         }else{
-            dialogType=3;
             if(jsDialogBlock){
                 promptHandler=completionHandler;
             }
-            UIAlertView *alert = [[UIAlertView alloc]
-                                  initWithTitle:prompt
-                                  message:@""
-                                  delegate:self
-                                  cancelButtonTitle:dialogTextDic[@"promptCancelBtn"]?dialogTextDic[@"promptCancelBtn"]:@"取消"
-                                  otherButtonTitles:dialogTextDic[@"promptOkBtn"]?dialogTextDic[@"promptOkBtn"]:@"确定",
-                                  nil];
-            [alert setAlertViewStyle:UIAlertViewStylePlainTextInput];
-            txtName = [alert textFieldAtIndex:0];
-            txtName.text=defaultText;
-            [alert show];
+            
+            UIAlertController *alertVC = [UIAlertController alertControllerWithTitle:prompt message:@"" preferredStyle:UIAlertControllerStyleAlert];
+            UIAlertAction* sureAction = [UIAlertAction actionWithTitle:@"确定" style:UIAlertActionStyleDefault handler:^(UIAlertAction * _Nonnull action) {
+                UITextField *textFile = alertVC.textFields.firstObject;
+                self->promptHandler(textFile.text);
+                self->promptHandler=nil;
+            }];
+            UIAlertAction* cancelAction = [UIAlertAction actionWithTitle:@"取消" style:UIAlertActionStyleDefault handler:^(UIAlertAction * _Nonnull action) {
+                self->promptHandler=nil;
+            }];
+            [alertVC addAction:sureAction];
+            [alertVC addAction:cancelAction];
+            UIWindow *keyWindow = [UIApplication sharedApplication].keyWindow;
+            [keyWindow.rootViewController presentViewController:alertVC animated:YES completion:nil];
+            [alertVC addTextFieldWithConfigurationHandler:^(UITextField * _Nonnull textField) {
+                textField.placeholder = @"请输入";
+                textField.text = defaultText;
+            }];
         }
     }
 }
@@ -126,17 +128,24 @@ - (void)webView:(WKWebView *)webView runJavaScriptAlertPanelWithMessage:(NSStrin
                          initiatedByFrame:frame
                         completionHandler:completionHandler];
     }else{
-        dialogType=1;
         if(jsDialogBlock){
             alertHandler=completionHandler;
         }
-        UIAlertView *alertView =
-        [[UIAlertView alloc] initWithTitle:dialogTextDic[@"alertTitle"]?dialogTextDic[@"alertTitle"]:@"提示"
-                                   message:message
-                                  delegate:self
-                         cancelButtonTitle:dialogTextDic[@"alertBtn"]?dialogTextDic[@"alertBtn"]:@"确定"
-                         otherButtonTitles:nil,nil];
-        [alertView show];
+        NSString *aMessage = @"";
+        if (message != nil) {
+            aMessage = message;
+        } else if (dialogTextDic[@"alertTitle"] != nil) {
+            aMessage = dialogTextDic[@"alertTitle"];
+        }
+        UIAlertController *alertVC = [UIAlertController alertControllerWithTitle:@"提示" message:aMessage preferredStyle:UIAlertControllerStyleAlert];
+        UIAlertAction* sureAction = [UIAlertAction actionWithTitle:@"确定" style:UIAlertActionStyleDefault handler:^(UIAlertAction * _Nonnull action) {
+            self->alertHandler();
+            self->alertHandler=nil;
+        }];
+
+        [alertVC addAction:sureAction];
+        UIWindow *keyWindow = [UIApplication sharedApplication].keyWindow;
+        [keyWindow.rootViewController presentViewController:alertVC animated:YES completion:nil];
     }
 }
 
@@ -153,17 +162,28 @@ -(void)webView:(WKWebView *)webView runJavaScriptConfirmPanelWithMessage:(NSStri
                         initiatedByFrame:frame
                        completionHandler:completionHandler];
     }else{
-        dialogType=2;
         if(jsDialogBlock){
             confirmHandler=completionHandler;
         }
-        UIAlertView *alertView =
-        [[UIAlertView alloc] initWithTitle:dialogTextDic[@"confirmTitle"]?dialogTextDic[@"confirmTitle"]:@"提示"
-                                   message:message
-                                  delegate:self
-                         cancelButtonTitle:dialogTextDic[@"confirmCancelBtn"]?dialogTextDic[@"confirmCancelBtn"]:@"取消"
-                         otherButtonTitles:dialogTextDic[@"confirmOkBtn"]?dialogTextDic[@"confirmOkBtn"]:@"确定", nil];
-        [alertView show];
+        NSString *aMessage = @"";
+        if (message != nil) {
+            aMessage = message;
+        } else if (dialogTextDic[@"confirmTitle"] != nil) {
+            aMessage = dialogTextDic[@"confirmTitle"];
+        }
+        UIAlertController *alertVC = [UIAlertController alertControllerWithTitle:@"提示" message:aMessage preferredStyle:UIAlertControllerStyleAlert];
+        UIAlertAction* sureAction = [UIAlertAction actionWithTitle:@"确定" style:UIAlertActionStyleDefault handler:^(UIAlertAction * _Nonnull action) {
+            self->confirmHandler(YES);
+            self->confirmHandler=nil;
+        }];
+        UIAlertAction* cancelAction = [UIAlertAction actionWithTitle:@"取消" style:UIAlertActionStyleDefault handler:^(UIAlertAction * _Nonnull action) {
+            self->confirmHandler(NO);
+            self->confirmHandler=nil;
+        }];
+        [alertVC addAction:sureAction];
+        [alertVC addAction:cancelAction];
+        UIWindow *keyWindow = [UIApplication sharedApplication].keyWindow;
+        [keyWindow.rootViewController presentViewController:alertVC animated:YES completion:nil];
     }
 }
 
@@ -211,25 +231,6 @@ - (void)webView:(WKWebView *)webView commitPreviewingViewController:(UIViewContr
     }
 }
 
-- (void)alertView:(UIAlertView *)alertView clickedButtonAtIndex:(NSInteger)buttonIndex
-{
-    if(dialogType==1 && alertHandler){
-        alertHandler();
-        alertHandler=nil;
-    }else if(dialogType==2 && confirmHandler){
-        confirmHandler(buttonIndex==1?YES:NO);
-        confirmHandler=nil;
-    }else if(dialogType==3 && promptHandler && txtName) {
-        if(buttonIndex==1){
-            promptHandler([txtName text]);
-        }else{
-            promptHandler(@"");
-        }
-        promptHandler=nil;
-        txtName=nil;
-    }
-}
-
 - (void) evalJavascript:(int) delay{
     dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(delay * NSEC_PER_MSEC)), dispatch_get_main_queue(), ^{
         @synchronized(self){