public ImageFileFormSetField(
string title = null,
string lead = "",
FormFieldSetter <List <string> > onSaved = null,
List <string> initialValue = null,
bool autovalidate = false,
bool enabled = true
) : base(
onSaved: onSaved,
initialValue: initialValue,
autovalidate: autovalidate,
enabled: enabled,
builder: state =>
{
var list = new List <Widget> {
new Card(
child: new Container(
width: 64f,
height: 64f,
child: new ConstrainedBox(
constraints: BoxConstraints.expand(),
child: new FlatButton(
onPressed: () => {
var ret = DataUploader.OpenFile(
lead,
"",
"png, jpg"
);
if (state.value == null)
{
state.didChange(new List <string> { ret });
}
else
{
state.value.Add(ret);
state.didChange(state.value);
}
},
padding: EdgeInsets.all(0f),
child: new Icon(Icons.add)
)
)
)
)
};
if (state.value != null)
{
list.AddRange(
state
.value
.Select((path, i) => new Card(
child: new Container(
width: 64f,
height: 64f,
child: new ConstrainedBox(
constraints: BoxConstraints.expand(),
child: new FlatButton(
onPressed: () => {
var ret = DataUploader.OpenFile(
lead,
"",
"png, jpg"
);
state.value[i] = ret;
state.didChange(state.value);
},
padding: EdgeInsets.all(0f),
child: Image.file(path)
)
)
)
)
)
);
}
return(new Column(
crossAxisAlignment: CrossAxisAlignment.start,
mainAxisSize: MainAxisSize.max,
children: new List <Widget> {
new Container(
margin: EdgeInsets.only(top: 8f),
height: string.IsNullOrEmpty(title) ? new float?(0f) : null,
width: float.MaxValue,
child: string.IsNullOrEmpty(title) ? null : new Text(title)
),
new Container(
height: 72f,
child: new ListView(
scrollDirection: Axis.horizontal,
children: list
)
)
}
));
},
validator: value => {
return(null);
}
) {}
public ImageFileFormField(
string title = null,
string lead = "",
FormFieldSetter <string> onSaved = null,
string initialValue = "",
bool autovalidate = false,
bool enabled = true
) : base(
onSaved: onSaved,
initialValue: initialValue,
autovalidate: autovalidate,
enabled: enabled,
builder: state => new Column(
crossAxisAlignment: CrossAxisAlignment.start,
mainAxisSize: MainAxisSize.max,
children: new List <Widget> {
new Container(
margin: EdgeInsets.only(top: 8f),
height: string.IsNullOrEmpty(title) ? new float?(0f) : null,
child: string.IsNullOrEmpty(title) ? null : new Text(title)
),
new Card(
child: new Container(
width: 128,
height: 128,
child: new ConstrainedBox(
constraints: BoxConstraints.expand(),
child: new FlatButton(
onPressed: () => {
var ret = DataUploader.OpenFile(
lead,
"",
"png, jpg"
);
state.didChange(ret);
},
padding: EdgeInsets.all(0f),
child: string.IsNullOrEmpty(state.value) ?
(Widget)(new Icon(Icons.add)) :
(Widget)Image.file(state.value)
)
)
)
),
new Container(
height: string.IsNullOrEmpty(state.errorText) ? new float?(0f) : null,
padding: EdgeInsets.only(top: 4f),
child: new Text(
state.errorText ?? "",
style: new TextStyle(
color: Theme.of(state.context).errorColor
)
)
)
}
),
validator: value => {
if (string.IsNullOrEmpty(value))
{
return("Please select an image.");
}
return(null);
}
) {}
