android phonegap 相机和图像上传 [英] android phonegap camera and image uploading
问题描述
自周五以来，我一直在努力完成这项工作，搜索了谷歌和这里.我的最终目标是能够拍摄多张带有标题和描述的照片，并将它们上传到服务器，然后显示在网页上.
I have been trying to make this work, searched google and here since Friday. My ultimate goal is to be able take multiple pictures with a title and description for each and upload them to a server, then display on a web page.
目前我所拥有的是:为一张图片指定标题和描述、浏览图库、查找图片并选择它的能力.但是当我这样做时，图像会立即与表单一起上传.我希望能够使用提交按钮来执行此操作.
What I have so far is: the ability to give one image a title and description, browse the gallery, find an image and select it. BUT when I do the image is uploaded along with the form, immediately. I would like to be able to do this using a submit button.
我也有一个按钮来代替拍摄图像，并在页面上显示图像的预览.但是当我用相机拍照时，我不知道如何上传我的表格.我能够使用 div 和 innerHTML 调用将图像数据打印到屏幕上......但老实说，我很迷茫，甚至不知道从哪里开始发布特定的代码片段.我将发布整个页面，因为它目前存在....
I also have a button to take an image instead, and a preview of the image on the page appears. BUT when I do take an image with the camera I do not know how to upload my form. I was able to print to the screen the image data using a div and innerHTML call... but honestly i'm so lost and do not even know where to start posting specific snippets of code. I will post the entire page as it currently exists right now....
<html>
<head>
<title>File Transfer Example</title>
<script type="text/javascript" charset="utf-8" src="cordova-2.3.0.js"></script>
<script type="text/javascript" charset="utf-8">
var pictureSource; // picture source
var destinationType; // sets the format of returned value
// Wait for Cordova to load
//
document.addEventListener("deviceready", onDeviceReady, false);
// Cordova is ready
//
function onDeviceReady() {
pictureSource=navigator.camera.PictureSourceType;
destinationType=navigator.camera.DestinationType;
}
function browse(){
navigator.camera.getPicture(uploadPhoto,
function(message) { alert('get picture failed'); },
{ quality: 50,
destinationType: navigator.camera.DestinationType.FILE_URI,
sourceType: navigator.camera.PictureSourceType.PHOTOLIBRARY }
);
}
function uploadPhoto(imageURI) {
var options = new FileUploadOptions();
options.fileKey="file";
options.fileName=imageURI.substr(imageURI.lastIndexOf('/')+1);
options.mimeType="image/jpeg";
var params = {};
params.value1 = "test";
params.value2 = document.getElementById('file_name').value + "";
params.value3 = document.getElementById('file_description').value + "";
options.params = params;
var ft = new FileTransfer();
ft.upload(imageURI, encodeURI("http://site.com/pages/upload.php"), win, fail, options);
}
function win(r) {
console.log("Code = " + r.responseCode);
console.log("Response = " + r.response);
console.log("Sent = " + r.bytesSent);
}
function onFileSystemSuccess(fileSystem) {
console.log(fileSystem.name);
}
function onResolveSuccess(fileEntry) {
console.log(fileEntry.name);
}
function fail(evt) {
console.log(evt.target.error.code);
}
function fail(error) {
alert("An error has occurred: Code = " + error.code);
console.log("upload error source " + error.source);
console.log("upload error target " + error.target);
}
function capturePhoto() {
// Take picture using device camera, allow edit, and retrieve image as base64-encoded string
navigator.camera.getPicture(onPhotoDataSuccess, onFail, { quality: 20, allowEdit: true,
destinationType: destinationType.DATA_URL });
}
function onPhotoDataSuccess(imageData) {
// console.log(imageData);
var smallImage = document.getElementById('smallImage');
smallImage.style.display = 'block';
smallImage.src = "data:image/jpeg;base64," + imageData;
var smallTEXT = document.getElementById('smallTEXT');
smallTEXT.style.display = 'block';
smallTEXT.innerHTML = "data:image/jpeg;base64," + imageData;
}
function onPhotoURISuccess(imageURI) {
// Uncomment to view the image file URI
// console.log(imageURI);
// Get image handle
//
var largeImage = document.getElementById('largeImage');
// Unhide image elements
//
largeImage.style.display = 'block';
largeImage.src = imageURI;
}
function capturePhoto() {
// Take picture using device camera and retrieve image as base64-encoded string
navigator.camera.getPicture(onPhotoDataSuccess, onFail, { quality: 50,
destinationType: destinationType.DATA_URL });
}
// Called if something bad happens.
//
function onFail(message) {
alert('Failed because: ' + message);
}
</script>
</head>
<body>
<h1>Example</h1>
<p>Upload File</p>
<form name ="filename" id="file_name_form" action="#">
Title <br><input type="text" name="name" id="file_name" /><br>
Description <br><textarea type="text" name="description" id="file_description" /></textarea>
</form>
<button onclick="capturePhoto();">Use Camera</button> <br>
<button onclick="browse();">browse gallery</button><br>
<img style="display:none;width:160px;" id="smallImage" src="" />
<hr>
<div id="smallTEXT">ggg</div>
<button onclick"uploadPhoto();">submit</button>
</body>
推荐答案
根据这个答案:Phonegap android 无法使用 fileTransfer 上传图片不能直接使用 URI....
According to this answer: Phonegap android unable to upload image using fileTransfer You cannot use the URI directly....
但是，好像可以直接使用uri...(见下面我的代码)
But, it seems the uri can be used directly... (see my code below)
编辑 25-7-2013我得到了这个工作:像这样调用:
Edit 25-7-2013 I got this working with: call like this:
navigator.camera.getPicture(onPhotoUriSuccess, onFailCamera, { quality: 50,
destinationType: pictDestinationType.FILE_URI });
并成功:
function onPhotoUriSuccess(imageUriToUpload){
var url=encodeURI("http://your_url_for_the_post/");
var username='your_user';
var password='your_pwd';
var params = new Object();
params.your_param_name = "something"; //you can send additional info with the file
var options = new FileUploadOptions();
options.fileKey = "the_name_of_the_image_field"; //depends on the api
options.fileName = imageUriToUpload.substr(imageUriToUpload.lastIndexOf('/')+1);
options.mimeType = "image/jpeg";
options.params = params;
options.chunkedMode = true; //this is important to send both data and files
var headers={'Authorization':"Basic " + Base64.encode(username + ":" + password)};
options.headers = headers;
var ft = new FileTransfer();
ft.upload(imageUriToUpload, url, succesFileTransfer, errorFileTransfer, options);
}
顺便说一句，我在 api 站点上使用了一个 apache 网络服务器，我在这里看到，nginx 可能有分块模式的问题:PhoneGap chunckedMode true 上传错误
By the way, I use an apache webserver on the api site, I saw here, nginx could have a problem with the chunked mode: PhoneGap chunckedMode true upload error
这篇关于android phonegap 相机和图像上传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！
