phonegap 照相插件的使用
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<2> 我们从命令行进入 到工程目录下的? plugins 文件夹
cd my-app
cd plugins
<3> 现在开始下载插件?? 本篇讲述 camera? :
输入:
cordova plugin add org.apache.cordova.camera
插件下载完毕
<4> 添加 android 平台工程? (ios 把 "android" 替换)
cordova platform add android
<5> 编译 android 工程
cordova build
至此? camera 已经生成...
现在大家只需要将工程导入到 eclipse 当中 使用官方 APi 语句在 javascript 中调用
将下方语句考到?? assets 目录下? www/index.html? 当中? 完全复制过去;
example:
<!DOCTYPE html>
<html>
<head>
<title>Capture Photo</title>
<script type="text/javascript" charset="utf-8" src="cordova.js"></script>
<script type="text/javascript" charset="utf-8">
var pictureSource; // picture source
var destinationType; // sets the format of returned value
// Wait for device API libraries to load //
document.addEventListener("deviceready",onDeviceReady,false);
// device APIs are available //
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 in-line 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 in-line 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 οnclick="capturePhoto();">Capture Photo</button> <br>
<button οnclick="capturePhotoEdit();">Capture Editable Photo</button> <br>
<button οnclick="getPhoto(pictureSource.PHOTOLIBRARY);">From Photo Library</button><br>
<button οnclick="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="" />
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