Phonegap 相机 API - 无法读取未定义的属性“DATA_URL”
Phonegap Camera API - Cannot read property 'DATA_URL' of undefined
我正在使用Phonegap创建一个Android应用程序。
我已经使用他们网站上的命令安装了 phonegap。
一切都已通过 SDK 和模拟器启动并运行。
现在，当我从他们的网站运行示例相机脚本以使其工作时，然后再开始对其进行维护。
每次我运行下面的代码（即使我已将文件链接到 phonegap.js），它都会不断抛出错误。我的意思是脚本运行到 HTML 并显示按钮，但是当单击按钮时没有任何反应，并且在日志中说：无法读取未定义的属性"DATA_URL"。
<!DOCTYPE html>
<html class="no-js">
<head>
<meta charset="utf-8" />
<meta name="format-detection" content="telephone=no" />
<!-- WARNING: for iOS 7, remove the width=device-width and height=device-height attributes. See https://issues.apache.org/jira/browse/CB-4323 -->
<meta name="viewport" content="user-scalable=no, initial-scale=1, maximum-scale=1, minimum-scale=1, width=device-width, height=device-height, target-densitydpi=device-dpi" />
<link rel="stylesheet" type="text/css" href="css/index.css" />
<script type="text/javascript" src="phonegap.js"></script>
<link rel="stylesheet" href="css/foundation.css" />
<script src="js/vendor/modernizr.js"></script>
<title>Retouch</title>
<script type="text/javascript" charset="utf-8">
var pictureSource; // picture source
var destinationType; // sets the format of returned value
// Wait for PhoneGap to connect with the device
//
document.addEventListener("deviceready",onDeviceReady,false);
// PhoneGap is ready to be used!
//
function onDeviceReady() {
pictureSource=navigator.camera.PictureSourceType;
destinationType=navigator.camera.DestinationType;
}
// Called when a photo is successfully retrieved
//
function onPhotoDataSuccess(imageData) {
// Get image handle
//
var smallImage = document.getElementById('smallImage');
// Unhide image elements
//
smallImage.style.display = 'block';
// Show the captured photo
// The inline CSS rules are used to resize the image
//
smallImage.src = "data:image/jpeg;base64," + imageData;
}
// Called when a photo is successfully retrieved
//
function onPhotoFileSuccess(imageData) {
// Get image handle
console.log(JSON.stringify(imageData));
// Get image handle
//
var smallImage = document.getElementById('smallImage');
// Unhide image elements
//
smallImage.style.display = 'block';
// Show the captured photo
// The inline CSS rules are used to resize the image
//
smallImage.src = imageData;
}
// Called when a photo is successfully retrieved
//
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';
// Show the captured photo
// The inline CSS rules are used to resize the image
//
largeImage.src = imageURI;
}
// A button will call this function
//
function capturePhoto() {
navigator.camera.getPicture(onPhotoDataSuccess, onFail, { quality: 50,
destinationType: destinationType.DATA_URL });
}
function capturePhotoEdit() {
navigator.camera.getPicture(onPhotoDataSuccess, onFail, { quality: 20, allowEdit: true,
destinationType: destinationType.DATA_URL });
}
// A button will call this function
//
function getPhoto(source) {
// Retrieve image file location from specified source
navigator.Camera.getPicture(onPhotoURISuccess, onFail, {
quality: 50,
destinationType: navigator.camera.DestinationType.FILE_URI,
sourceType: pictureSource
});
// Called if something bad happens.
//
function onFail(message) {
alert('Failed because: ' + message);
}
</script>
</head>
<body>
<!-- Navigation bar -->
<div class="fixed">
<nav class="top-bar fixed" data-topbar>
<ul class="title-area">
<li class="name">
<h1 class="navmsg">
<script>
var Digital=new Date()
var hours=Digital.getHours()
if (hours>=5&&hours<=11)
document.write('<b>Good Morning.</b>')
else if (hours==12)
document.write('<b>Good Afternoon.</b>')
else if (hours>=13&&hours<=17)
document.write('<b>Good Afternoon.</b>')
else if (hours>=18&&hours<=20)
document.write('<b>Good Evening.</b>')
else if (hours>=21&&hours<=11)
document.write('<b>Hello!</b>')
else
document.write('<b>Hello!</b>')
</script>
</h1>
</li>
<li class="toggle-topbar menu-icon"><a href="#">Account</a></li>
</ul>
</nav>
</div>
<button onclick="capturePhotoWithData();">Capture Photo With Image Data</button> <br>
<button onclick="capturePhotoWithFile();">Capture Photo With Image File URI</button> <br>
<button onclick="getPhoto(pictureSource.PHOTOLIBRARY);">From Photo Library</button><br>
<button onclick="getPhoto(pictureSource.SAVEDPHOTOALBUM);">From Photo Album</button><br>
<img style="display:none;width:60px;height:60px;" id="smallImage" src="" />
<img style="display:none;" id="largeImage" src="" />
<script type="text/javascript" src="phonegap.js"></script>
<script type="text/javascript" src="js/index.js"></script>
<script src="js/vendor/jquery.js"></script>
<script src="js/foundation.min.js"></script>
<script>
$(document).foundation();
</script>
<script type="text/javascript">
app.initialize();
</script>
</body>
</html>`
我尝试使用以下方法：
<script type="text/javascript" src="phonegap.js"></script>
和
<script type="text/javascript" src="cordova.js"></script>
似乎什么都不起作用。
我已经在capturePhoto（）和capturePhotoEdit（）中更改了以下内容：
destinationType.DATA_URL
自
Camera.DestinationType.DATA_URL
功能仍然没有运气。我怀疑这与 cordova 插件和 phonegap 有关，因为我只有 phonegap.js包含在脚本中。我还在阅读有关 config.xml 中的设置的信息，我已经按照文档通过命令行（除非我做错了）完成了这些设置。
我已经通过CL构建了应用程序：
phonegap build android
以下带有cordova-2.5.0.js和destinationType.FILE_URI添加的代码已成功启用getPhoto（）函数，并允许我在图库/相册中显示照片。
<!DOCTYPE html>
<html class="no-js">
<head>
<meta charset="utf-8" />
<meta name="format-detection" content="telephone=no" />
<!-- WARNING: for iOS 7, remove the width=device-width and height=device-height attributes. See https://issues.apache.org/jira/browse/CB-4323 -->
<meta name="viewport" content="user-scalable=no, initial-scale=1, maximum-scale=1, minimum-scale=1, width=device-width, height=device-height, target-densitydpi=device-dpi" />
<link rel="stylesheet" type="text/css" href="css/index.css" />
<script type="text/javascript" src="phonegap.js"></script>
<link rel="stylesheet" href="css/foundation.css" />
<script src="js/vendor/modernizr.js"></script>
<title>Retouch</title>
<script type="text/javascript" charset="utf-8" src="cordova-2.5.0.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 connect with the device
//
document.addEventListener("deviceready",onDeviceReady,false);
// Cordova is ready to be used!
//
function onDeviceReady() {
pictureSource=navigator.camera.PictureSourceType;
destinationType=navigator.camera.DestinationType;
}
// Called when a photo is successfully retrieved
//
function onPhotoDataSuccess(imageData) {
// Uncomment to view the base64 encoded image data
//alert(imageData);
// Get image handle
//
var smallImage = document.getElementById('smallImage');
// Unhide image elements
//
smallImage.style.display = 'block';
// Show the captured photo
// The inline CSS rules are used to resize the image
//
smallImage.src = "data:image/jpeg;base64," + imageData;
}
// Called when a photo is successfully retrieved
//
function onPhotoURISuccess(imageURI) {
alert("inside large image")
// 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';
// Show the captured photo
// The inline CSS rules are used to resize the image
//
largeImage.src = imageURI;
}
// A button will call this function
//
function capturePhoto() {
// Take picture using device camera and retrieve image as base64-encoded string
navigator.camera.getPicture(onPhotoDataSuccess, onFail, { quality: 50,
destinationType: destinationType.FILE_URI });
}
// A button will call this function
//
function capturePhotoEdit() {
// 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.FILE_URI });
}
// A button will call this function
//
function getPhoto(source) {
// Retrieve image file location from specified source
navigator.camera.getPicture(onPhotoURISuccess, onFail, { quality: 50,
destinationType: destinationType.FILE_URI,
sourceType: source });
}
// Called if something bad happens.
//
function onFail(message) {
alert('Failed because: ' + message);
}
</script>
</head>
<body>
<!-- Navigation bar -->
<div class="fixed">
<nav class="top-bar fixed" data-topbar>
<ul class="title-area">
<li class="name">
<h1 class="navmsg">
<script>
var Digital=new Date()
var hours=Digital.getHours()
if (hours>=5&&hours<=11)
document.write('<b>Good Morning.</b>')
else if (hours==12)
document.write('<b>Good Afternoon.</b>')
else if (hours>=13&&hours<=17)
document.write('<b>Good Afternoon.</b>')
else if (hours>=18&&hours<=20)
document.write('<b>Good Evening.</b>')
else if (hours>=21&&hours<=11)
document.write('<b>Hello!</b>')
else
document.write('<b>Hello!</b>')
</script>
</h1>
</li>
<li class="toggle-topbar menu-icon"><a href="#">Account</a></li>
</ul>
</nav>
</div>
<button onclick="capturePhotoWithData();">Capture Photo With Image Data</button> <br>
<button onclick="capturePhotoWithFile();">Capture Photo With Image File URI</button> <br>
<button onclick="getPhoto(pictureSource.PHOTOLIBRARY);">From Photo Library</button><br>
<button onclick="getPhoto(pictureSource.SAVEDPHOTOALBUM);">From Photo Album</button><br>
<img style="display:none;width:60px;height:60px;" id="smallImage" src="" />
<img style="display:none;" id="largeImage" src="" />
<script type="text/javascript" src="phonegap.js"></script>
<script type="text/javascript" src="js/index.js"></script>
<script src="js/vendor/jquery.js"></script>
<script src="js/foundation.min.js"></script>
<script>
$(document).foundation();
</script>
</body>
</html>
我尝试在capturePhoto（）和capturePhotoEdit（）函数中添加"destinationType.FILE_URI"，但它们似乎仍然不起作用。
我现在已经尝试了以下三种类型：
destinationType.FILE_URI
destinationType.DATA_URI
Camera.desitnationType.DATA_URI
它们似乎都没有区别。
这是一个
Javascript错误。您正在尝试访问未定义变量的属性。此行（在capturePhoto和capturePhotoEdit方法中）：
destinationType.DATA_URL
应该是：
Camera.DestinationType.DATA_URL
还有一件事：使用 Cordova，手头有文档总是好的，每次使用新插件或升级到较新版本时都要查看它们（它们往往会频繁更改 API，因此在 Google 中找到的示例通常显示遗留代码）。这里有相机插件文档。
就我而言，当我暂停执行时，相机有getPicture（）方法，但没有DestinationType和PictureSourceType属性。
$scope.tomarFoto = function(){
$ionicPlatform.ready(function() {
var options = {
quality: 50,
destinationType: Camera.DestinationType.DATA_URL,
sourceType: Camera.PictureSourceType.CAMERA
};
$cordovaCamera.getPicture(options).then(function (imageData) {
$scope.cameraimage = "data:image/jpeg;base64," + imageData;
}, function (err) {
console.log('Failed because: ' + message);
});
});
已更新只是我最近遇到了同样的问题。如果您添加了相机插件和所需的所有权限，主要是您执行了所有Phonegap Api步骤。我认为您的解决方案通行证是转到您的项目文件夹并执行phonegap build或phonegap build app_platform.首先保存您的项目数据，因为命令行重置了项目的结构并删除了您添加的文件。
让我知道这是否也适合你，祝你好运。
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