吐司支持自定义位置

lib/utils/toast_util.dart

@@ -4,7 +4,8 @@ import 'package:fluttertoast/fluttertoast.dart';
 
 class ToastUtil {
   static void showToast(String? txt,
-      {ToastDuration toastDuration = ToastDuration.short}) {
+      {ToastDuration toastDuration = ToastDuration.short,
+      ToastGravity gravity = ToastGravity.BOTTOM}) {
     if (txt.isNullOrEmpty()) {
       txt = "信息异常";
     }
@@ -13,7 +14,7 @@ class ToastUtil {
         toastLength: toastDuration == ToastDuration.long
             ? Toast.LENGTH_LONG
             : Toast.LENGTH_SHORT,
-        gravity: ToastGravity.BOTTOM,
+        gravity: gravity,
         // timeInSecForIos: 1,
         backgroundColor: const Color(0xB3000000),
         textColor: Colors.white,