使用Cordova可以很方便的通过js代码读取系统相簿里面的照片，同使用设备摄像头拍照一样，同样需要先添加camera插件。
一，添加camera插件
首先我们要在“终端”中进入工程所在的目录，然后运行如下命令：
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cordova plugin add cordova-plugin-camera |
可以看到camera相机插件已经成功添加了：
二，获取照片
我们可以选择是从“照片库（时刻）”中读取图片，或者从“相簿”中读取图片。
1，从“相簿”中获取照片
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<!DOCTYPE html><html> <head>
<title>Capture Photo</title>
<meta http-equiv="Content-type" content="text/html; charset=utf-8">
<script type="text/javascript" charset="utf-8" src="cordova.js"></script>
<script type="text/javascript" charset="utf-8">
var pictureSource;
var destinationType;
document.addEventListener("deviceready",onDeviceReady,false);
//Cordova加载完成会触发
function onDeviceReady() {
pictureSource=navigator.camera.PictureSourceType;
destinationType=navigator.camera.DestinationType;
}
//获取照片
function getPhoto(source) {
//quality : 图像的质量，范围是[0,100]
navigator.camera.getPicture(onPhotoURISuccess, onFail, { quality: 50,
destinationType: destinationType.FILE_URI,
sourceType: source });
}
//获取照片成功
function onPhotoURISuccess(imageURI) {
//打印出照片路径
console.log(imageURI);
var largeImage = document.getElementById('largeImage');
largeImage.style.display = 'block';
largeImage.src = imageURI;
}
//获取照片是吧
function onFail(message) {
alert('获取失败: ' + message);
}
</script>
</head>
<body style="padding-top:50px">
<button style="font-size:23px;" onclick="getPhoto(pictureSource.PHOTOLIBRARY);">
从“相簿”中获取照片
</button> <br>
<img style="display:none;" id="largeImage" src="" />
</body>
</html> |
2，从“照片库（时刻）”中获取照片
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<!DOCTYPE html><html> <head>
<title>Capture Photo</title>
<meta http-equiv="Content-type" content="text/html; charset=utf-8">
<script type="text/javascript" charset="utf-8" src="cordova.js"></script>
<script type="text/javascript" charset="utf-8">
var pictureSource;
var destinationType;
document.addEventListener("deviceready",onDeviceReady,false);
//Cordova加载完成会触发
function onDeviceReady() {
pictureSource=navigator.camera.PictureSourceType;
destinationType=navigator.camera.DestinationType;
}
//获取照片
function getPhoto(source) {
//quality : 图像的质量，范围是[0,100]
navigator.camera.getPicture(onPhotoURISuccess, onFail, { quality: 50,
destinationType: destinationType.FILE_URI,
sourceType: source });
}
//获取照片成功
function onPhotoURISuccess(imageURI) {
//打印出照片路径
console.log(imageURI);
var largeImage = document.getElementById('largeImage');
largeImage.style.display = 'block';
largeImage.src = imageURI;
}
//获取照片是吧
function onFail(message) {
alert('获取失败: ' + message);
}
</script>
</head>
<body style="padding-top:50px">
<button style="font-size:23px;" onclick="getPhoto(pictureSource.SAVEDPHOTOALBUM);">
从“时刻”中获取照片
</button> <br>
<img style="display:none;" id="largeImage" src="" />
</body>
</html> |
原文出自：www.hangge.com 转载请保留原文链接：http://www.hangge.com/blog/cache/detail_1148.html