小编Bri*_*ode的帖子

final ApiServiceController uController = Get.put(ApiServiceController());\n\ndownloading(String fileUrl, String fileName) async {\n    Dio dio = Dio();\n    fToast("Downloading... $fileName", pop);\n\n    try {\n      var dir = await downloadDirectory();\n      uController.isDwd.value = true;\n\n      await dio.download(fileUrl, "${dir.path}/$fileName",\n          onReceiveProgress: (rec, total) {\n        print("Rec: $rec , Total: $total");\n\n        uController.dwdP.value = ((rec / total) * 100).toStringAsFixed(0) + "%";\n      });\n      fToast("Downloaded", pop);\n    } catch (e) {\n      print(e);\n    }\n    uController.isDwd.value = false;\n\n    print("Download completed");\n  }\n

要显示的小部件

Stack(children: [\n///.. Container widget here,\nObx(() {\n    return uController.isDwd.value\n …