Listview 是否可以使用Flatter\u share或其他共享插件共享来自Flatter image\u picker的文本和照片?
使用Flatter_share插件,我可以在我的Flatter ListView中成功地与以下用户共享firestore集合中的文本:Listview 是否可以使用Flatter\u share或其他共享插件共享来自Flatter image\u picker的文本和照片?,listview,flutter,share,flutter-dependencies,Listview,Flutter,Share,Flutter Dependencies,使用Flatter_share插件,我可以在我的Flatter ListView中成功地与以下用户共享firestore集合中的文本: child: IconButton( icon: Icon( Icons.share, onPressed: () => Share.share( '${(snapshot.data.documents[index]['title'])}', ))), 现在,我在ListView中添加了一个新的Flitter listtil
child: IconButton(
icon: Icon(
Icons.share,
onPressed: () => Share.share(
'${(snapshot.data.documents[index]['title'])}',
))),
现在,我在ListView中添加了一个新的Flitter listtile部分,其中包括来自image_picker插件的一张照片,用户可以从他们的图库中选择一张照片,或者拍摄一张新照片并将其附加到firestore数据文本下
void _openImagePicker(BuildContext context) {
showModalBottomSheet(context: context, builder: (BuildContext context) {
return Container(
height: 180.0,
padding: EdgeInsets.all(10.0),
child: Column(
children: [
Text('Choose photo',
style:TextStyle(fontWeight: FontWeight.bold),),
SizedBox(height: 10.0),
FlatButton(
textColor: Theme.of(context).primaryColor,
child: Text('Use Camera'),
onPressed: () {
_getImage(context, ImageSource.camera);
},),
FlatButton(
textColor: Theme.of(context).primaryColor,child:
Text('Open Gallery'),
onPressed: () {
_getImage(context, ImageSource.gallery);
},),
]
),);
});
}
@override
Widget build(BuildContext context) {
return Column(
children: <Widget>[
OutlineButton(
onPressed: () {
_openImagePicker(context);
},
child:Row(
mainAxisAlignment: MainAxisAlignment.start,
children: <Widget>[
Icon(Icons.camera_alt),
SizedBox(
width:1.0,
),
// Text('Add Image'),
]
),//Row
),//outline button
SizedBox(height: 10.0),
_imageFile == null ? Text('Add an Image') : Image.file(_imageFile,
fit: BoxFit.cover,
height: 200.0,
width: 200.0,
alignment: Alignment.topCenter,
),
],
);}}
void\u openImagePicker(构建上下文){
showModalBottomSheet(上下文:context,builder:(BuildContext){
返回容器(
高度:180.0,
填充:所有边缘设置(10.0),
子:列(
儿童:[
文本('选择照片',
样式:TextStyle(fontWeight:fontWeight.bold),
尺寸箱(高度:10.0),
扁平按钮(
textColor:Theme.of(context.primaryColor),
子项:文本(“使用摄影机”),
已按下:(){
_getImage(上下文,ImageSource.camera);
},),
扁平按钮(
textColor:Theme.of(context).primaryColor,child:
文本(“打开库”),
已按下:(){
_getImage(上下文,ImageSource.gallery);
},),
]
),);
});
}
@凌驾
小部件构建(构建上下文){
返回列(
儿童:[
大纲按钮(
已按下:(){
_openImagePicker(上下文);
},
孩子:排(
mainAxisAlignment:mainAxisAlignment.start,
儿童:[
图标(图标、摄像头和alt),
大小盒子(
宽度:1.0,
),
//文本(“添加图像”),
]
),//行
),//大纲按钮
尺寸箱(高度:10.0),
_imageFile==null?Text('添加图像'):Image.file(\u imageFile,
适合:BoxFit.cover,
高度:200.0,
宽度:200.0,
对齐:alignment.topCenter,
),
],
);}}
我的问题是,这个Flatter_共享插件或另一个插件有没有办法将新图像与原始共享firestore文本结合起来,这样用户就可以同时共享文本和照片,而不仅仅是文本?还是只能发送一个或另一个
图像不会存储在Firestore中,只存储文本,因此可以使用用户相机拍摄图像或从他们的图库上载图像,然后附加到共享文本中
这是添加了esys共享的完整代码,它不发送图像\u选择器图像
class ImageInput extends StatefulWidget {
@override
_ImageInputState createState() => _ImageInputState();
}
class _ImageInputState extends State<ImageInput> {
File _imageFile;
void _getImage(BuildContext context, ImageSource source){
ImagePicker.pickImage(source: source, maxWidth: 200.0).then((File image){
setState((){
_imageFile = image;
// _imageFile = await ImagePicker.pickImage(source: source);
// List<int> imageBytes = await _imageFile.readAsBytes();
// var uint8List = Uint8List.fromList(imageBytes);
});
Navigator.pop(context);
});
}
void _openImagePicker(BuildContext context) {
showModalBottomSheet(context: context, builder: (BuildContext context) {
return Container(
height: 180.0,
padding: EdgeInsets.all(10.0),
child: Column(
children: [
Text('Choose photo',
style:TextStyle(fontWeight: FontWeight.bold),),
SizedBox(height: 10.0),
FlatButton(
textColor: Theme.of(context).primaryColor,
child: Text('Use Camera'),
onPressed: () {
_getImage(context, ImageSource.camera);
},),
FlatButton(
textColor: Theme.of(context).primaryColor,child:
Text('Open Gallery'),
onPressed: () {
_getImage(context, ImageSource.gallery);
},)
]
),);
});
}
@override
Widget build(BuildContext context) {
return Column(
children: <Widget>[
OutlineButton(
onPressed: () {
_openImagePicker(context);
},
child:Row(
mainAxisAlignment: MainAxisAlignment.start,
children: <Widget>[
Icon(Icons.camera_alt),
SizedBox(
width:1.0,
),
// Text('Add Image'),
]
),//Row
),//outline button
SizedBox(height: 10.0),
_imageFile == null ? Text('Add an Image') : Image.file(_imageFile,
fit: BoxFit.cover,
height: 200.0,
width: 200.0,
// width: MediaQuery.of(context).size.width,
alignment: Alignment.topCenter,
),
MaterialButton(
child: Text('Share mixed'),
onPressed: () async => await _shareMixed(),
),
],
);
}
}
Future<void> _shareMixed() async {
try {
final ByteData bytes1 = await rootBundle.load('_imageFile');
//final ByteData bytes2 = await rootBundle.load('assets/image2.png');
// final ByteData bytes3 = await rootBundle.load('assets/addresses.csv');
await Share.files(
'esys images',
{
'_imageFile': bytes1.buffer.asUint8List(),
//'bluedan.png': bytes2.buffer.asUint8List(),
//'addresses.csv': bytes3.buffer.asUint8List(),
},
'*/*',
text: 'My optional text.');
} catch (e) {
print('error: $e');
}
}
类ImageInput扩展StatefulWidget{
@凌驾
_ImageInputState createState()=>\u ImageInputState();
}
类_ImageInputState扩展状态{
文件imageFile;
void\u getImage(BuildContext上下文,ImageSource源){
pickImage(源代码:source,maxWidth:200.0)。然后((文件图像){
设置状态(){
_图像文件=图像;
//_imageFile=wait ImagePicker.pickImage(源:source);
//List imageBytes=wait_imageFile.readAsBytes();
//var uint8List=uint8List.fromList(imageBytes);
});
Navigator.pop(上下文);
});
}
void\u openImagePicker(构建上下文){
showModalBottomSheet(上下文:context,builder:(BuildContext){
返回容器(
高度:180.0,
填充:所有边缘设置(10.0),
子:列(
儿童:[
文本('选择照片',
样式:TextStyle(fontWeight:fontWeight.bold),
尺寸箱(高度:10.0),
扁平按钮(
textColor:Theme.of(context.primaryColor),
子项:文本(“使用摄影机”),
已按下:(){
_getImage(上下文,ImageSource.camera);
},),
扁平按钮(
textColor:Theme.of(context).primaryColor,child:
文本(“打开库”),
已按下:(){
_getImage(上下文,ImageSource.gallery);
},)
]
),);
});
}
@凌驾
小部件构建(构建上下文){
返回列(
儿童:[
大纲按钮(
已按下:(){
_openImagePicker(上下文);
},
孩子:排(
mainAxisAlignment:mainAxisAlignment.start,
儿童:[
图标(图标、摄像头和alt),
大小盒子(
宽度:1.0,
),
//文本(“添加图像”),
]
),//行
),//大纲按钮
尺寸箱(高度:10.0),
_imageFile==null?Text('添加图像'):Image.file(\u imageFile,
适合:BoxFit.cover,
高度:200.0,
宽度:200.0,
//宽度:MediaQuery.of(context).size.width,
对齐:alignment.topCenter,
),
材料按钮(
子项:文本(“共享混合”),
onPressed:()async=>wait _sharemix(),
),
],
);
}
}
Future\u shareMixed()异步{
试一试{
final ByteData bytes1=等待rootBundle.load(“u imageFile”);
//final ByteData bytes2=等待rootBundle.load('assets/image2.png');
//final ByteData bytes3=等待rootBundle.load('assets/addresses.csv');
等待Share.files(
"易思影像",,
{
“_imageFile”:bytes1.buffer.asUint8List(),
//'bluedan.png':bytes2.buffer.asUint8List(),
//“addresses.csv”:bytes3.buffer.asUint8List(),
},
'*/*',
文本:“我的可选文本”。);
}捕获(e){
打印('error:$e');
}
}
您可以复制粘贴运行下面的完整代码您可以使用软件包
工作演示 完整代码
import 'package:flutter/material.dart';
import 'package:image_picker/image_picker.dart';
import 'dart:io';
import 'package:esys_flutter_share/esys_flutter_share.dart';
import 'dart:typed_data';
class ImageInput extends StatefulWidget {
@override
_ImageInputState createState() => _ImageInputState();
}
class _ImageInputState extends State<ImageInput> {
File _imageFile;
void _getImage(BuildContext context, ImageSource source) {
ImagePicker.pickImage(source: source, maxWidth: 200.0).then((File image) {
setState(() {
_imageFile = image;
// _imageFile = await ImagePicker.pickImage(source: source);
// List<int> imageBytes = await _imageFile.readAsBytes();
// var uint8List = Uint8List.fromList(imageBytes);
});
Navigator.pop(context);
});
}
Future<void> _shareImageAndText() async {
try {
List<int> imageBytes = await _imageFile.readAsBytes();
var uint8List = Uint8List.fromList(imageBytes);
await Share.file('esys image', 'esys.jpg', uint8List, 'image/jpeg',
text: 'My optional text.');
} catch (e) {
print('error: $e');
}
}
void _openImagePicker(BuildContext context) {
showModalBottomSheet(
context: context,
builder: (BuildContext context) {
return Container(
height: 180.0,
padding: EdgeInsets.all(10.0),
child: Column(children: [
Text(
'Choose photo',
style: TextStyle(fontWeight: FontWeight.bold),
),
SizedBox(height: 10.0),
FlatButton(
textColor: Theme.of(context).primaryColor,
child: Text('Use Camera'),
onPressed: () {
_getImage(context, ImageSource.camera);
},
),
FlatButton(
textColor: Theme.of(context).primaryColor,
child: Text('Open Gallery'),
onPressed: () {
_getImage(context, ImageSource.gallery);
},
)
]),
);
});
}
@override
Widget build(BuildContext context) {
return Column(
children: <Widget>[
OutlineButton(
onPressed: () {
_openImagePicker(context);
},
child: Row(
mainAxisAlignment: MainAxisAlignment.start,
children: <Widget>[
Icon(Icons.camera_alt),
SizedBox(
width: 1.0,
),
// Text('Add Image'),
]), //Row
), //outline button
SizedBox(height: 10.0),
_imageFile == null
? Text('Add an Image')
: Image.file(
_imageFile,
fit: BoxFit.cover,
height: 200.0,
width: 200.0,
// width: MediaQuery.of(context).size.width,
alignment: Alignment.topCenter,
),
MaterialButton(
child: Text('Share mixed'),
onPressed: () async => await _shareImageAndText(),
),
],
);
}
}
void main() => runApp(MyApp());
class MyApp extends StatelessWidget {
@override
Widget build(BuildContext context) {
return MaterialApp(
title: 'Flutter Demo',
theme: ThemeData(
primarySwatch: Colors.blue,
),
home: MyHomePage(title: 'Flutter Demo Home Page'),
);
}
}
class MyHomePage extends StatefulWidget {
MyHomePage({Key key, this.title}) : super(key: key);
final String title;
@override
_MyHomePageState createState() => _MyHomePageState();
}
class _MyHomePageState extends State<MyHomePage> {
int _counter = 0;
void _incrementCounter() {
setState(() {
_counter++;
});
}
@override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(
title: Text(widget.title),
),
body: Center(
child: Column(
mainAxisAlignment: MainAxisAlignment.center,
children: <Widget>[
ImageInput(),
Text(
'You have pushed the button this many times:',
),
Text(
'$_counter',
style: Theme.of(context).textTheme.headline4,
),
],
),
),
floatingActionButton: FloatingActionButton(
onPressed: _incrementCounter,
tooltip: 'Increment',
child: Icon(Icons.add),
),
);
}
}
导入“包装:颤振/材料.省道”;
导入“包:image_picker/image_picker.dart”;
导入“dart:io”;
导入“包:esys_flatter_share/esys_flatter_share.dart”;
导入“dart:键入的_数据”;
类ImageInput扩展StatefulWidget{
@凌驾
_ImageInputState createState()=>\u ImageInputState();
}
类_ImageInputState扩展状态{
文件imageFile;
void\u getImage(BuildContext上下文,ImageSource源){
pickImage(源代码:source,maxWidth:200.0)。然后((文件图像){
设置状态(){
_图像文件=图像;
//_imageFile=wait ImagePicker.pickImage(源:source);
//List imageBytes=wait_imageFile.readAsBytes();
//变量uint8List=Uint8