javascript 适用于 Android 的 PhoneGap 相机 API - 未捕获的异常
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PhoneGap Camera API for Android - Uncaught Exception
提问by dhiku
I am trying to run the Camera API using Phone gap in Android, and i am running in all sort of issues.
我正在尝试使用 Android 中的 Phone gap 运行 Camera API，并且我遇到了各种问题。
I just copied phonegap camera example.
我刚刚复制了phonegap相机的例子。
I am getting the following error
我收到以下错误
07-12 18:18:00.706: E/Web Console(17837): Uncaught TypeError: Cannot read property 'SAVEDPHOTOALBUM' of undefined at file:///android_asset/www/index.html:98
07-12 18:17:59.456: E/Web Console(17837): Uncaught ReferenceError: Camera is not defined at file:///android_asset/www/index.html:67
I tried all the other destination type. It dint work
我尝试了所有其他目的地类型。它有效
destinationType: destinationType.FILE_URI
destinationType: Camera.DestinationType.FILE_URI
destinationType: destinationType.DATA_URL
Also i added the permission for Camera and hardware camera permission. But still it failed
我还添加了相机和硬件相机权限的权限。但还是失败了
Here is the following
以下是
<!DOCTYPE html>
<html>
<head>
<title>Capture Photo</title>
<script type="text/javascript" charset="utf-8" src="phonegap-1.0.0.js"></script>
<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) {
// Uncomment to view the base64 encoded image data
// console.log(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) {
// 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, {destinationType: Camera.DestinationType.FILE_URI, quality: 50 });
}
// 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, { destinationType: Camera.DestinationType.FILE_URI,quality: 20, allowEdit: true });
}
// A button will call this function
//
function getPhoto(source) {
// Retrieve image file location from specified source
navigator.camera.getPicture(onPhotoURISuccess, onFail, { quality: 50,
destinationType: Camera.DestinationType.FILE_URI,
sourceType: source });
}
// Called if something bad happens.
//
function onFail(message) {
alert('Failed because: ' + message);
}
</script>
</head>
<body>
<button onclick="capturePhoto();">Capture Photo</button> <br>
<button onclick="capturePhotoEdit();">Capture Editable Photo</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="" />
</body>
</html>
回答by barners
Ensure you are including the correct (latest) cordovafile in your HTML.
确保在 HTML中包含正确的（最新的）cordova文件。
I had the same problem and I was including
我有同样的问题，我包括
cordova-1.8.0.js
rather than
而不是
cordova-2.4.0.js
回答by Nullify
You can try this for Capturing Photo using phonegap
您可以尝试使用 phonegap 捕获照片
<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.DATA_URL });
}
// 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.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: destinationType.FILE_URI,
sourceType: source });
}
// Called if something bad happens.
//
function onFail(message) {
alert('Failed because: ' + message);
}
</script>
</head>
<body>
<button onclick="capturePhoto();">Capture Photo</button> <br>
<button onclick="capturePhotoEdit();">Capture Editable Photo</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="" />
</body>
</html>
回答by Shady Sherif
I had the same problem I solved it on three steps
我遇到了同样的问题，我分三步解决了
The javascript include
javascript 包括
I used cordova.js ONLY and removed any phonegap.js
我只使用了cordova.js并删除了任何phonegap.js
<script type="text/javascript" charset="utf-8" src="cordova.js"></script>
Installing the plugin(s)
安装插件
You must install the camera plugin using command line; xml only doesn't work
您必须使用命令行安装相机插件；仅 xml 不起作用
cordova plugin add org.apache.cordova.camera
Use right android-package
使用正确的 android-package
In your xml you may are using org.apache.cordova.CameraLauncherit is wrong and will give you NullPointer exception.
The right package could be included like that
在您的 xml 中，您可能正在使用org.apache.cordova.CameraLauncher它是错误的，并且会给您 NullPointer 异常。可以像这样包含正确的包
<feature name="Camera">
<param name="ios-package" value="CDVCamera" />
<param name="android-package" value="org.apache.cordova.camera.CameraLauncher" />
</feature>
Give them a try! Thanks :)
试试看吧！谢谢 ：）
回答by sharma_kunal
2.0.0.js this may solve your problem
2.0.0.js 这可能会解决你的问题
you code is right only check for these cordova-2.0.0.js files only
您的代码是正确的，仅检查这些cordova-2.0.0.js 文件
回答by Muhammad Riyaz
Just adding <script src="phonegap.js"></script>
in my html solved it for me!
And also I had <script src="cordova.js"></script>, so removed it and kept only<script src="phonegap.js"></script>.
只需添加<script src="phonegap.js"></script>
我的 html 即可为我解决！
我也有<script src="cordova.js"></script>，所以删除它并只保留<script src="phonegap.js"></script>.
回答by tttpapi
I had the same problem.
我有同样的问题。
You are using pictureSource.PHOTOLIBRARYand pictureSource.SAVEDPHOTOALBUMdirectly in the code.
您正在代码中直接使用pictureSource.PHOTOLIBRARY和pictureSource.SAVEDPHOTOALBUM。
The problem is that the html is loaded before the javascript and then you are trying to reach pictureSource. But has not been specified yet.
问题是 html 在 javascript 之前加载，然后您试图访问pictureSource. 但尚未明确。
You have to use this when the app is fully loaded (eg. use jQuery event in documents.ready or some alternative in javascript)
当应用程序完全加载时，您必须使用它（例如，在documents.ready 中使用jQuery 事件或在javascript 中使用一些替代方法）
