Question

我能够根据PhoneGap文档中的camera.getPicture完整示例构建测试应用程序。它允许我拍摄照片或从图库中检索照片并将其放入div中。

但是，我希望能够从图库中选择多个图像，并将每个图像放在自己的div中。任何人都可以指出我正确的方向来学习如何实现这一目标吗？

感谢。

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。您需要编写或查找可与本机代码一起使用的插件，以便您执行此操作。以下是Phonegap开发计划中描述的问题。 https://issues.apache.org/jira/browse/CB-1215

我正在努力做到这一点。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

你需要在每张照片拍摄后动态创建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>";
}

然后你可以使用类似这样的东西通过css设置所有imgs的样式

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

使用PhoneGap从设备的图库中选择多张照片

2 个答案: