Hello I am trying to add picture to the APP by image picker But when I close the screen and open it again that message show to me
════════ Exception caught by widgets library ═══════════════════════════════════
The following _CastError was thrown building RawGestureDetector-[LabeledGlobalKey<RawGestureDetectorState>#0cfc0](state: RawGestureDetectorState#aaba3(gestures: <none>, behavior: opaque)):
Null check operator used on a null value
The relevant error-causing widget was
SingleChildScrollView
lib\screens\create_post.dart:22
When the exception was thrown, this was the stack
and that my code of CreatePost Screen
Scaffold(
body: SingleChildScrollView(
child: Column(
children: [
Container(
height: MediaQuery.of(context).size.height * 0.25,
decoration: BoxDecoration(
color: primary,
borderRadius: BorderRadius.only(
bottomLeft: Radius.circular(100),
),
),
child: CustomText(
text: 'Sell Your Car',
alignment: Alignment.center,
fontSize: 40,
),
),
SizedBox(
height: MediaQuery.of(context).size.height * 0.05,
),
CustomTextFormFild(onSave: () {}, hint: 'car name'),
SizedBox(
height: MediaQuery.of(context).size.height * 0.05,
),
CustomTextFormFild(onSave: () {}, hint: 'car description'),
SizedBox(
height: MediaQuery.of(context).size.height * 0.05,
),
GetBuilder<ImageViewModel>(
builder: (controller) => Column(
children: [
Container(
child: CustomButton(
onPressed: () {
controller.getImage(ImageSource.gallery);
},
text: 'Upload Image',
alignment: Alignment.center,
),
),
SizedBox(
height: 20,
),
controller.selectedImagePath.value == ''
? Text(
'Select immage from camera/gallery',
style: TextStyle(fontSize: 20),
)
: Image.file(File(controller.selectedImagePath.value)),
],
),
)
],
),
),)
and also the controller of the image picker
class ImageViewModel extends GetxController {
//TODO: Implement HomeController
var selectedImagePath = ''.obs;
void getImage(ImageSource imageSource) async {
final pickedFile = await ImagePicker().pickImage(source: imageSource);
if (pickedFile != null) {
selectedImagePath.value = pickedFile.path;
} else {
Get.snackbar("Error", "No Image selected",
snackPosition: SnackPosition.BOTTOM,
backgroundColor: Colors.red,
colorText: Colors.white);
}
}
@override
void onInit() {
super.onInit();
}
@override
void onClose() {}
}
something went wrong the image should be deleted after i close the screen but that don`t work
