使用图片URI将照片上传到Firebase存储 [英] Upload a photo to Firebase Storage with Image URI

问题描述

我目前正在尝试将照片上传到我的Apache Cordova应用中的Firebase应用存储中。我目前使用以下代码获取照片的URI：

I am currently attempting to upload a photo to my Firebase app's storage in my Apache Cordova app. I currently get the photo's URI with the following code:

function getPhotoFromAlbum() {

    navigator.camera.getPicture(onPhotoURISuccess, onFail, {
        quality: 50,
        sourceType: navigator.camera.PictureSourceType.SAVEDPHOTOALBUM,
        destinationType: navigator.camera.DestinationType.FILE_URI
    });
}

function onPhotoURISuccess(imageURI) {
    var image = document.getElementById('image');
    image.style.display = 'block';
    image.src = imageURI;

    getFileEntry(imageURI);

}

然后我尝试将图像转换为文件使用以下函数将其推送到我的Firebase存储：

And then am attempting to convert the image into a file and push it to my Firebase storage with the following function:

function getFileEntry(imgUri) {
    window.resolveLocalFileSystemURL(imgUri, function success(fileEntry) {

        console.log("got file: " + fileEntry.fullPath);
        var filename = "test.jpg";
        var storageRef = firebase.storage().ref('/images/' + filename);
        var uploadTask = storageRef.put(fileEntry);

    }, function () {
        // If don't get the FileEntry (which may happen when testing
        // on some emulators), copy to a new FileEntry.
        createNewFileEntry(imgUri);
    });
}

我同时安装了文件和相机cordova插件，唯一的错误我当我尝试这样做时得到

I have both the file and the camera cordova plugins installed, the only errors I get when I attempt to do this is

Error in Success callbackId: File1733312835 : [object Object]

这只是来自cordova.js的错误消息

Which is just an error message from cordova.js

我也知道我已正确设置Firebase存储空间，因为我已通过模拟器测试它，方法是添加文件输入并成功上传用户添加的任何文件到Firebase存储空间。

I also know I have my Firebase storage set up correctly because I have tested it through an emulator by adding a file input and successfully uploading whatever file the user added, to the Firebase storage.

是否可以使用这种通过URI将图像转换为文件然后上传的方法将文件上传到Firebase存储？如果是这样，这样做的正确方法是什么/我做的方式有什么问题？

Is it possible to upload a file to Firebase storage using this method of converting an image to a file through its URI, and then uploading it? If so, what is the correct way to do so / what is wrong with the way i'm doing it?

推荐答案

我能够通过使用数据URL完成上传图像。以下是我的代码：

I was able to accomplish uploading an image by using a data url. Below is my code:

var filename = "test.jpg";
                    var storageRef = firebase.storage().ref('/images/' + filename);

                    var message = 'data:image/jpg;base64,' + imageUri;
                    storageRef.putString(message, 'data_url').then(function (snapshot) {
                        console.log('Uploaded a data_url string!');
                    });

这篇关于使用图片URI将照片上传到Firebase存储的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！