flutter api image parameter showing null - api

Question

hello i am new to flutter and i m using update profile api in my profile api i describe all parameter and image base 64 also now what is going on ! suppose alredy is image showing on my profile pic and i never pic image from my camera and device My "Profile Pic" parameter showing null when i call it...! and when i picke image from my device it showing base 64...! what i want is if there is alredy image showing then profile api function i want success because there is alredy image shown ... now u suggest me when i call Profile api function on my Button wht i need to pass
PickedFile _imageFile;
final ImagePicker _picker = ImagePicker();
String img64;
void takePhoto(ImageSource source) async {
final pickedFile = await _picker.getImage(source: source);
setState(() {
_imageFile = pickedFile;
final bytes = Io.File(_imageFile.path).readAsBytesSync();
img64 = base64Encode(bytes);
print(img64.substring(0, 100));
});
}
Profile(String FirstnName,String Lastname,String Email,String DOB,String
Anniversary) async {
sharedPreferences = await SharedPreferences.getInstance();
ValidateCustomer();
Map data =
{
"AccessToken": sharedPreferences.getString("AccessToken"),
"CustomerId": sharedPreferences.getInt("CustomerId"),
"FirstName": FirstnName ,
"LastName": Lastname,
"Email": Email,
"DOB":DOB,
"AnniversaryDate": Anniversary,
"ProfilePicture" : img64
};
print(data);
final http.Response response = await http.post(
Constants.CUSTUMER_WEBSERVICE_UPDATEPROF_URL,
headers: <String, String>{
'Content-Type': 'application/json; charset=UTF-8',
},
body: jsonEncode(data),
);
var jsonResponse;
if (response.statusCode == 200)
{
print(sharedPreferences.setString("FirstName", FirstnName));
jsonResponse = json.decode(response.body);
sharedPreferences = await SharedPreferences.getInstance();
sharedPreferences.setString("FirstName", FirstnName);
sharedPreferences.setString("ProfilePicture",img64);
print("Response status : ${response.statusCode}");
print("Response status : ${response.body}");
print(sharedPreferences);
if(jsonResponse != null && ! jsonResponse.containsKey("Error")){
setState(() {
_isLoading = false;
});
print(sharedPreferences);
Navigator.of(context).push(
MaterialPageRoute(builder: (context)=>
ShelfScreen())
);
}
else{
setState(() {
_isLoading = false;
});
print("Response status : ${response.body}");
}
}
if (response.statusCode == 404){
print("Response status : ${response.statusCode}");
print("Response status : ${response.body}");
}
}
Future<UserUpdate>ProfileUpadte() async {
sharedPreferences = await SharedPreferences.getInstance();
ValidateCustomer();
Map data =
{
"AccessToken": sharedPreferences.getString("AccessToken"),
"CustomerId": sharedPreferences.getInt("CustomerId"),
};
print(data);
final http.Response response = await http.post(
"http://api.pgapp.in/v1/userdetails",
headers: <String, String>{
'Content-Type': 'application/json; charset=UTF-8',
},
body: jsonEncode(data),
);
if (response.statusCode == 200)
{
print("Response status : ${response.statusCode}");
print("Response status : ${response.body}");
var jsonResponse = json.decode(response.body);
if(jsonResponse != null && ! jsonResponse.containsKey("Error")){
sharedPreferences = await SharedPreferences.getInstance();
sharedPreferences.setString("ProfilePicture",
jsonResponse["ProfilePicture"]);
sharedPreferences.setString("FirstName", jsonResponse["FirstName"]);
print(sharedPreferences);
}
else{
setState(() {
_isLoading = false;
});
print("Response status : ${response.body}");
}
return UserUpdate.fromJson(json.decode(response.body));
}
else {
// If the server did not return a 201 CREATED response,
// then throw an exception.
throw Exception('Failed to load data');
}
}
void nextField ({String value,FocusNode focusNode}){
if (value.isNotEmpty){
focusNode.requestFocus();
}
}
AnimationController _controller;
Animation _animation;
FocusNode _focusNode1 = FocusNode();
bool _isLoading = false;
String _Firstnm;
String _Lastnm;
String _Mobno;
String _Email;
String _Dob;
String _Anniversary;
DateTime _selectedDate;
final GlobalKey<FormState> _formKey = GlobalKey<FormState>();
FocusNode Firstname;
FocusNode LastndName;
FocusNode Email;
FocusNode DOB;
FocusNode Anniversary;
Future<UserUpdate> _futureProfileupdate;
#override
void initState() {
// TODO: implement initState
super.initState();
Firstname = FocusNode();
LastndName = FocusNode();
Email = FocusNode();
DOB = FocusNode();
Anniversary = FocusNode();
_futureProfileupdate = ProfileUpadte();
}
void _showPicker(context) {
showModalBottomSheet(
context: context,
builder: (BuildContext bc) {
return SafeArea(
child: Container(
child: new Wrap(
children: <Widget>[
new ListTile(
leading: new Icon(Icons.photo_library),
title: new Text('Photo Library'),
onTap: () {
takePhoto(ImageSource.gallery);
Navigator.of(context).pop();
}),
new ListTile(
leading: new Icon(Icons.photo_camera),
title: new Text('Camera'),
onTap: () {
takePhoto(ImageSource.camera);
Navigator.of(context).pop();
},
),
],
),
),
);
}
);
}
#override
Widget build(BuildContext context) {
return Scaffold(
resizeToAvoidBottomInset: false,
resizeToAvoidBottomPadding: false,
body: (_isLoading) ? Center(child: CircularProgressIndicator()) :
FutureBuilder<UserUpdate>(
future: _futureProfileupdate,
builder: (context, snapshot) {
if (snapshot.hasData) {
TextEditingController _textEditingControllerFirstNamee =
TextEditingController(text: snapshot.data.firstName);
TextEditingController _textEditingControllerLastnamee = TextEditingController(text: snapshot.data.lastName);
TextEditingController _textEditingControllerEmaill = TextEditingController(text: snapshot.data.email);
TextEditingController _textEditingControllerDOBb = TextEditingController(text: snapshot.data.dob);
TextEditingController _textEditingControllerAnniversaryy = TextEditingController(text: snapshot.data.anniversaryDate);
_selectDate(BuildContext context) async {
DateTime newSelectedDate = await showDatePicker(
context: context,
initialDate: _selectedDate != null ? _selectedDate : DateTime.now(),
firstDate: DateTime(1920),
lastDate: DateTime(2040),
builder: (BuildContext context, Widget child) {
return Theme(
data: ThemeData.dark().copyWith(
colorScheme: ColorScheme.dark(
primary: Colors.deepPurple,
onPrimary: Colors.white,
surface: Colors.blueGrey,
onSurface: Colors.yellow,
),
dialogBackgroundColor: Colors.blue[500],
),
child: child,
);
});
if (newSelectedDate != null) {
_selectedDate = newSelectedDate;
_textEditingControllerDOBb
..text = DateFormat.yMMMd().format(_selectedDate)
..selection = TextSelection.fromPosition(TextPosition(
offset: _textEditingControllerDOBb.text.length,
affinity: TextAffinity.upstream));
}
}
_selectDate2(BuildContext context) async {
DateTime newSelectedDate = await showDatePicker(
context: context,
initialDate: _selectedDate != null ? _selectedDate : DateTime.now(),
firstDate: DateTime(1920),
lastDate: DateTime(2040),
builder: (BuildContext context, Widget child) {
return Theme(
data: ThemeData.dark().copyWith(
colorScheme: ColorScheme.dark(
primary: Colors.deepPurple,
onPrimary: Colors.white,
surface: Colors.blueGrey,
onSurface: Colors.yellow,
),
dialogBackgroundColor: Colors.blue[500],
),
child: child,
);
});
if (newSelectedDate != null) {
_selectedDate = newSelectedDate;
_textEditingControllerAnniversaryy
..text = DateFormat.yMMMd().format(_selectedDate)
..selection = TextSelection.fromPosition(TextPosition(
offset: _textEditingControllerAnniversaryy.text.length,
affinity: TextAffinity.upstream));
}
}
return Form(
key: _formKey,
child: Stack(
children: <Widget>[
Positioned(
left: 20,
top: 40,
child: Center(
child: Image.asset(
'assets/images/logo.png', height: 50, width: 50,),
)
),
Positioned(
left: 60,
right: 60,
top: 40,
child: Center(
child: Image.asset(
'assets/images/Textimage.png', height: 50,
width: 170,),
)
),
Positioned(
right: 20,
top: 40,
child: Center(
child: IconButton(
icon: Icon(Icons.exit_to_app, size: 30,
color: Color(0xfff58634),),
onPressed: () async {
showAboutDialog(context);
},
)
)
),
Positioned(
left: 70,
right: 70,
top: 110,
child: Center(
child: CircleAvatar(
backgroundImage: _imageFile == null ? NetworkImage(
snapshot.data.profilePicture) : FileImage(Io.File(_imageFile.path)),
backgroundColor: Colors.grey,
maxRadius: 50,
)
)
),
Positioned(
left: 100,
right: 70,
top: 170,
child: InkWell(
onTap: (){
_showPicker(context);
},
child: Icon(
Icons.camera_alt,
color: Colors.white,
size: 30,
),
),
),
Positioned(
left: 30,
right: 30,
top: 250,
child: Container(
height: 480,
child: SingleChildScrollView(
child: Column(
mainAxisAlignment: MainAxisAlignment.spaceEvenly,
children: <Widget>[
Padding(
padding: const EdgeInsets.only(top: 5),
child: SizedBox(
height: 70,
child: TextFormField(
keyboardType: TextInputType.text,
textCapitalization: TextCapitalization.sentences,
textInputAction: TextInputAction.next,
focusNode: Firstname,
onFieldSubmitted: (value) {
nextField(
value: value, focusNode: LastndName);
},
controller: _textEditingControllerFirstNamee,
decoration: InputDecoration(
enabledBorder: OutlineInputBorder(
borderRadius: BorderRadius.circular(
5.0),
borderSide: BorderSide(
color: const Color(0x3df58634)
)
),
border: OutlineInputBorder(
borderRadius: BorderRadius.circular(
5.0)
),
labelText: "First Name",
labelStyle: GoogleFonts.nunito(
color: const Color(0xfff58634)),
hintText: "First Name",
hintStyle: GoogleFonts.nunito(
color: const Color(0xfff58634)),
focusedBorder: OutlineInputBorder(
borderRadius: BorderRadius.circular(
5.0),
borderSide: BorderSide(
color: const Color(0x3df58634),
)
),
),
validator: (String value) {
if (value.isEmpty) {
return 'First Name is Required';
}
return null;
},
onSaved: (String value) {
_Firstnm = value;
},
),
),
),
Padding(
padding: const EdgeInsets.only(top: 5),
child: SizedBox(
height: 70,
child: TextFormField(
keyboardType: TextInputType.text,
textCapitalization:
TextCapitalization.sentences,
focusNode: LastndName,
textInputAction: TextInputAction.next,
onFieldSubmitted: (value) {
nextField(value: value, focusNode:
Email);
},
controller:
_textEditingControllerLastnamee,
decoration: InputDecoration(
enabledBorder: OutlineInputBorder(
borderRadius: BorderRadius.circular(
5.0),
borderSide: BorderSide(
color: const Color(0x3df58634)
)
),
border: OutlineInputBorder(
borderRadius: BorderRadius.circular(
5.0)
),
labelText: 'Last Name',
labelStyle: GoogleFonts.nunito(
color: const Color(0xfff58634)),
hintText: "Last Name",
hintStyle: GoogleFonts.nunito(
color: const Color(0xfff58634)),
focusedBorder: OutlineInputBorder(
borderRadius: BorderRadius.circular(
5.0),
borderSide: BorderSide(
color: const Color(0x3df58634),
)
),
),
validator: (String value) {
if (value.isEmpty) {
return 'First Name is Required';
}
return null;
},
onSaved: (String value) {
_Lastnm = value;
},
),
),
),
Padding(
padding: const EdgeInsets.only(top: 5),
child: SizedBox(
height: 70,
child: TextFormField(
focusNode: Email,
textInputAction: TextInputAction.next,
onFieldSubmitted: (value) {
nextField(value: value, focusNode: DOB);
},
controller: _textEditingControllerEmaill,
decoration: InputDecoration(
enabledBorder: OutlineInputBorder(
borderRadius: BorderRadius.circular(
5.0),
borderSide: BorderSide(
color: const Color(0x3df58634)
)
),
border: OutlineInputBorder(
borderRadius: BorderRadius.circular(
5.0)
),
labelText: 'Email',
labelStyle: GoogleFonts.nunito(
color: const Color(0xfff58634)),
hintText: "Email",
hintStyle: GoogleFonts.nunito(
color: const Color(0xfff58634)),
focusedBorder: OutlineInputBorder(
borderRadius: BorderRadius.circular(
5.0),
borderSide: BorderSide(
color: const Color(0x3df58634),
)
),
),
validator: (value) => EmailValidator.validate(value) ? null : "Please enter a valid email",
onSaved: (String value) {
_Email = value;
},
),
),
),
Padding(
padding: EdgeInsets.only(top: 45),
child: SizedBox(
width: 360,
height: 45,
child: RaisedButton(
onPressed: () {
if (!_formKey.currentState.validate()) {
return;
}
setState(() {
_isLoading = true;
});
Profile(
_textEditingControllerFirstNamee.text,
_textEditingControllerLastnamee.text,
_textEditingControllerEmaill.text,
_textEditingControllerDOBb.text,
_textEditingControllerAnniversaryy
.text,);
Navigator.of(context).push(MaterialPageRoute(builder: (context) => ShelfScreen()));
},
shape: new RoundedRectangleBorder(
borderRadius: new BorderRadius.circular(
5.0)),
color: const Color(0xfff58634),
child: Text(
"Update",
style: GoogleFonts.nunito(
color: const Color(0xffffffff),
fontSize: 20
),
),
),
),
),
Padding(
padding: EdgeInsets.only(top: 120),
child: Text(".", style: TextStyle(
color: Colors.transparent, fontSize: 1,
),),
)
],
),
),
),
),
],
),
);
} else {
return CircularProgressIndicator();
);
}
}
)
);
}
}
class AlwaysDisabledFocusNode extends FocusNode {
#override
bool get hasFocus => false;
}