textfeild 光标处插入内容

@@ -399,6 +399,26 @@ class _MyMakeMarkingPageState extends State<MyMakeMarkingPage> {
                             customerMakingProvider.youhui = couponList[
                                 customerMakingProvider.couponSelectIndex];
                           });
+
+                          // var cursorPos = customerMakingProvider
+                          //     .controller.selection.base.offset; //获取到光标的在字符串的位置
+
+                          // String textAfterCursor = customerMakingProvider
+                          //     .controller.text
+                          //     .substring(cursorPos); //把字符串从光标的位置截取,光标后面的
+
+                          // String textBeforeCursor = customerMakingProvider
+                          //     .controller.text
+                          //     .substring(0, cursorPos); //光标前面的字符串
+                          // customerMakingProvider.controller.text =
+                          //     textBeforeCursor +
+                          //         "http://www.baidu.com" +
+                          //         textAfterCursor; //把想要的插入的内容拼接在光标位置处
+
+                          // customerMakingProvider.controller.selection =
+                          //     TextSelection.collapsed(
+                          //         offset: customerMakingProvider
+                          //             .controller.text.length);
                         }
                       },
                               selecteds: customerMakingProvider