使用 PhoneGap 从设备的图片库中选择多张照片

Question

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

但是，我希望能够从图库中选择多个图像并将每个图像放置在自己的 div 中。谁能指出我正确的方向来学习如何实现这一目标？

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);

Answer 1

从 Phonegap 3.5 开始，不支持同时选择多个图像。您将需要编写或找到一个可以与本机代码配合使用的插件，以便您能够执行此操作。这是 Phonegap 开发计划中描述的问题。 https://issues.apache.org/jira/browse/CB-1215

我也在努力做这件事。这是 Android 解决方案的链接。

http://webcache.googleusercontent.com/search?q=cache:http://www.technotalkative.com/android-select-multiple-photos-from-gallery/

Answer 2

您需要在拍摄每张照片后动态创建 div。
你的成功回调将是这样的：

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

然后你可以使用这样的东西通过CSS设置所有imgs的样式

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