ioswkwebviewjsalert

1.将WKWebView的WKUIDelegate设置成self。
2.将一下三个方法拷贝到项目中。

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• 解决alert方法

-(void)webView:(WKWebView *)webView runJavaScriptAlertPanelWithMessage:(NSString *)message initiatedByFrame:(WKFrameInfo *)frame completionHandler:(void (^)(void))completionHandler{
    UIAlertController *alertController = [UIAlertController alertControllerWithTitle:nil message:message?:@"" preferredStyle:UIAlertControllerStyleAlert];
    [alertController addAction:([UIAlertAction actionWithTitle:@"确认" style:UIAlertActionStyleDefault handler:^(UIAlertAction * _Nonnull action) {
        completionHandler();
    }])];
    [self presentViewController:alertController animated:YES completion:nil];

}

• 解决confirm

- (void)webView:(WKWebView *)webView runJavaScriptTextInputPanelWithPrompt:(NSString *)prompt defaultText:(NSString *)defaultText initiatedByFrame:(WKFrameInfo *)frame completionHandler:(void (^)(NSString * _Nullable))completionHandler{
    UIAlertController *alertController = [UIAlertController alertControllerWithTitle:prompt message:@"" preferredStyle:UIAlertControllerStyleAlert];
    [alertController addTextFieldWithConfigurationHandler:^(UITextField * _Nonnull textField) {
        textField.text = defaultText;
    }];
    [alertController addAction:([UIAlertAction actionWithTitle:@"完成" style:UIAlertActionStyleDefault handler:^(UIAlertAction * _Nonnull action) {
        completionHandler(alertController.textFields[0].text?:@"");
    }])];
    [self presentViewController:alertController animated:YES completion:nil];
}

• 解决prompt

• (void)webView:(WKWebView )webView runJavaScriptTextInputPanelWithPrompt:(NSString )prompt defaultText:(NSString )defaultText initiatedByFrame:(WKFrameInfo )frame completionHandler:(void (^)(NSString _Nullable))completionHandler{
  UIAlertController alertController = [UIAlertController alertControllerWithTitle:prompt message:@"" preferredStyle:UIAlertControllerStyleAlert];
  [alertController addTextFieldWithConfigurationHandler:^(UITextField _Nonnull textField) {
  textField.text = defaultText;
  }];
  [alertController addAction:([UIAlertAction actionWithTitle:@"完成" style:UIAlertActionStyleDefault handler:^(UIAlertAction _Nonnull action) {completionHandler(alertController.textFields[0].text?:@"");
  br/>completionHandler(alertController.textFields[0].text?:@"");
  [self presentViewController:alertController animated:YES completion:nil];
  }

标题名称：ioswkwebviewjsalert
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