使用PhoneGap从设备图库中选择多张照片

Question

我能够基于PhoneGap文档中camera.getPicture的完整示例构建一个测试应用程序。它允许我拍照或从相册中检索照片并将其放置在一个div中。

然而，我希望能够从相册中选择多个图像，并将每个图像放置在自己的div中。有谁能指点我如何实现这个目标？

谢谢。

这是我正在使用的javascript：

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) {
  var largeImage = document.getElementById('largeImage');
  largeImage.style.display = 'block';
  largeImage.src = "data:image/jpeg;base64," + imageData;
}


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

// A button will call this function
function capturePhoto() {
    //add new div

    var newPhoto = document.createElement("div");
    newPhoto.id = "div";        
    newPhoto.className ="photo";
    newPhoto.innerHTML = "<img id='largeImage' src='' />";
    document.getElementById("photos").appendChild(newPhoto);


  // Take picture using device camera and retrieve image as base64-encoded string
  navigator.camera.getPicture(onPhotoDataSuccess, onPhotoURISuccess, onFail, { quality: 50 });
}

// A button will call this function
function getPhoto(source) {
    //add new div



  // 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);

- Banjo Drill

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我也在寻找同样的答案 - 你最终解决了这个问题吗？ - woolyninja

Answer 1

从Phonegap 3.5开始，不支持同时选择多个图像。您需要编写或查找一个能够与本地代码配合工作以启用此功能的插件。以下是在Phonegap开发计划中描述的问题：https://issues.apache.org/jira/browse/CB-1215 我也正在尝试解决这个问题。这里有一个安卓解决方案的链接：http://webcache.googleusercontent.com/search?q=cache:http://www.technotalkative.com/android-select-multiple-photos-from-gallery/

- naturallyfoster

Answer 2

你需要在每张照片拍摄后动态创建div。 你的成功回调函数应该像这样：

function onPhotoDataSuccess(imageData) {
    // the following is all one line.
    document.getElementById("photos").innerHTML+=
    "<div>\
         <img src=\"data:image/jpeg;base64,"+imageData+"\">\
     </div>";
}

然后你可以使用类似于以下的 CSS 样式表来设置所有图像的样式：

#photos > div {
    width: 100px;
    margin:10px;
    float:left;
}

- BigBalli