适用于 Android 的 PhoneGap 相机 API - 未捕获的异常

Posted 2023-04-17

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【中文标题】适用于 Android 的 PhoneGap 相机 API - 未捕获的异常【英文标题】：PhoneGap Camera API for Android - Uncaught Exception 【发布时间】：2012-07-12 18:57:35 【问题描述】：

我正在尝试使用 android 中的 Phone gap 运行 Camera API，但我遇到了各种问题。

我刚刚复制了 phonegap 相机示例。

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

我尝试了所有其他目的地类型。效果不错

destinationType: destinationType.FILE_URI
destinationType: Camera.DestinationType.FILE_URI
destinationType: destinationType.DATA_URL

我还添加了相机权限和硬件相机权限。但是还是失败了

下面是

<!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>

【问题讨论】：

听起来您没有收到 deviceready 事件。你应该在 onDeviceReady 中放一个 console.log 看它是否被调用。 【参考方案1】：

确保在 HTML 中包含正确的（最新的）cordova 文件。

我有同样的问题，我包括

cordova-1.8.0.js

而不是

cordova-2.4.0.js

【讨论】：

也就是说，确保你的代码中引用的cordova-*.js文件和你运行的一样。为我工作！我下载了框架 zip，他们的示例使用“cordova.js”，没有版本号。【参考方案2】：

你可以试试这个使用 phonegap 拍照

<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>

【讨论】：

【参考方案3】：

我遇到了同样的问题，我通过三个步骤解决了它

javascript包括

我只使用了 cordova.js 并删除了所有 phonegap.js

    <script type="text/javascript" charset="utf-8" src="cordova.js"></script>

安装插件

您必须使用命令行安装相机插件；只有xml不起作用

cordova plugin add org.apache.cordova.camera

使用正确的android-package

在您的 xml 中，您可能正在使用 org.apache.cordova.CameraLauncher 这是错误的，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>

试一试！谢谢:)

【讨论】：

【参考方案4】：

2.0.0.js 这可能会解决你的问题

你的代码是正确的，只检查这些cordova-2.0.0.js文件

【讨论】：

【参考方案5】：

只需添加 <script src="phonegap.js"></script> 在我的html中为我解决了！我还有<script src="cordova.js"></script>，所以删除它并只保留<script src="phonegap.js"></script>。

【讨论】：

【参考方案6】：

我遇到了同样的问题。

您在代码中直接使用pictureSource.PHOTOLIBRARY 和pictureSource.SAVEDPHOTOALBUM。