Flutter 表单构建器包图像选择器 Firestore Flutter

Posted 2023-03-07

【中文标题】Flutter 表单构建器包图像选择器 Firestore Flutter

【英文标题】：Flutter form builder package image picker firestore flutter

【发布时间】：2020-09-23 08:01:50

【问题描述】：

我正在使用 Flutter 表单生成器包中的 FormBuilderImagePicker

我想使用 img 路径，但我不能这样做

sending() async 
var storageimage =
    FirebaseStorage.instance.ref().child('/google/google');
var task = storageimage.putFile();
imgurl = await (await task.onComplete).ref.getDownloadURL();
// await Firestore.instance.collection('twst').add(
//   
//     'img': imgurl.toString(),
//   ,
// );

我想将该功能与图像选择器一起使用 但问题是我找不到使用 putfile 的路径

【参考方案1】：

要获取FormBuilderImagePicker的路径，类的toString()方法会打印路径。

这里是example，说明如何在容器中打印包含路径的 FormBuilderImagePicker 的文本字段。

然后您需要将图像或文件传递给 putFile 方法。

也可以使用ImagePickerpickImage类方法获取文件。

sending() async 
   
    File image;
    try 
      //Get the file from the image picker and store it
      image = await ImagePicker.pickImage(source: ImageSource.gallery);

    // Throws error when you don't select any image or when you don't have permissions 
     on PlatformException catch (e) 
      return;
    

    //Create a reference to the location you want to upload to in firebase
    StorageReference reference = FirebaseStorage.instance.ref().child("/google/google");

    //Upload the file to Firebase
    StorageUploadTask uploadTask = reference.putFile(image);

    StorageTaskSnapshot taskSnapshot = await uploadTask.onComplete;

    // Waits till the file is uploaded then stores the download URL
    String url = await taskSnapshot.ref.getDownloadURL();