2. 选图片和拍照1 image_picker image.png 能选照片,也能拍照 照片和拍照通过不同的参数来指定 封装成静态函数 staticFuture<List>pickImageFromGallery()async{ListpicList=[];try{finalpicker=ImagePicker();finalpickedFile=await picker.pickMultiImage(limit:9);if(pickedFile.isNotEmpty){for(XFile file i...
HomePage将列出两个按钮:Pick Image from Gallery, 和Pick Image from Camera。该Pick Image from Gallery会打开一个ImageFromGalleryEx屏幕,我们可以从我们的图库中选择一个图片,同时Pick Image from Camera会打开一个ImageFromGalleryEx屏幕,我们可以从我们的相机拍摄照片,并使用图片作为摄取的图片 ImageFromGalleryEx将...
获取图像文件后,我们将其保存到_image变量中并调用setState(),以便它可以显示在屏幕中。 _imgFromCamera()async{ Fileimage=awaitImagePicker.pickImage( source:ImageSource.camera,imageQuality:50 ); setState(() { _image=image; }); } _imgFromGallery()async{ Fileimage=awaitImagePicker.pickImage( sourc...
enumImageFrom{camera,gallery}///选择一个图片///[from] 是相机还是图库///可选参数///[maxWidth] 宽度,///[maxHeight] 高度,///[imageQuality] 质量staticpickSinglePic(ImageFrom from,{double?maxWidth,double?maxHeight,int?imageQuality})async{ImageSource source;switch(from){caseImageFrom.camera:sou...
;}/// 获取相册中的图像FuturegetImageFromGallery()async{/// 菜单按钮消失Navigator.pop(context);/// 需要导入 image_picker.dart 包/// import 'package:image_picker/image_picker.dart';final pickedFile=awaitpicker.getImage(source:ImageSource.gallery);setState((){if(pickedFile!=null){_image=File(...
// 调用 getImageFromGallery 方法 , 调出相册 getImageFromGallery(); }, ), ), ], ), ); }); }, tooltip:'Pick Image', child:Icon(Icons.add_a_photo), ), ); } } 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13.
创建图像选择器:使用image_picker库中的ImagePicker类创建一个图像选择器,可以选择从相册中选择图像或使用相机拍摄新的图像。 代码语言:txt 复制 import 'package:image_picker/image_picker.dart'; final picker = ImagePicker(); Future<void> pickImageFromGallery() async { final pickedFile = await picker.ge...
_image = image; }); } _imgFromGallery()async{ File image =awaitImagePicker.pickImage( source: ImageSource.gallery, imageQuality:50 ); setState(() { _image = image; }); } 步骤4 - 创建用于选择相机/图库的选项选择 接下来,编写一个用于显示底部工作表的函数,供用户选择相机或图库选项。
Future _getImageFromGallery()async{var image=await ImagePicker().pickImage(source: ImageSource.gallery);Filefile=File(image!.path);//需要把XFile转换成File Uploadimage(file);}Uploadimage(Filefile)async{// 单个文件上传,格式一定要注意 var formData=FormData.fromMap({'file':await MultipartFile.from...
image_picker: ^1.0.2 Expected results Gallery opens, Video can be picked. Actual results App crashes and is closed. Code sample Code sample - based on image picker example project, removed unnecessary parts Screenshots or Video Screenshots / Video demonstration ...