Asp.net mvc 4 在MVC4中,如何在移动设备(android、IOS等)和桌面上访问摄像头?
如何使用MVC4网站访问移动设备和桌面计算机中的摄像头?仅用于拍摄图像以及如何识别摄像头。我已经尝试使用下面的代码。但它不能在IOS上运行,也不能捕获图像Asp.net mvc 4 在MVC4中,如何在移动设备(android、IOS等)和桌面上访问摄像头?,asp.net-mvc-4,Asp.net Mvc 4,如何使用MVC4网站访问移动设备和桌面计算机中的摄像头?仅用于拍摄图像以及如何识别摄像头。我已经尝试使用下面的代码。但它不能在IOS上运行,也不能捕获图像 <script> // Put event listeners into place window.addEventListener("DOMContentLoaded", function () { // Grab elements, create settings, etc. v
<script>
// Put event listeners into place
window.addEventListener("DOMContentLoaded", function () {
// Grab elements, create settings, etc.
var canvas = document.getElementById("canvas"),
context = canvas.getContext("2d"),
video = document.getElementById("video"),
videoObj = { "video": true },
errBack = function (error) {
console.log("Video capture error: ", error.code);
};
// Put video listeners into place
if (navigator.getUserMedia) { // Standard
navigator.getUserMedia(videoObj, function (stream) {
video.src = stream;
video.play();
}, errBack);
} else if (navigator.webkitGetUserMedia) { // WebKit-prefixed
navigator.webkitGetUserMedia(videoObj, function (stream) {
video.src = window.webkitURL.createObjectURL(stream);
video.play();
}, errBack);
}
else if (navigator.mozGetUserMedia) { // Firefox-prefixed
navigator.mozGetUserMedia(videoObj, function (stream) {
video.src = window.URL.createObjectURL(stream);
video.play();
}, errBack);
}
}, false);
// Trigger photo take
document.getElementById("snap").addEventListener("click", function () {
context.drawImage(video, 0, 0, 100, 100);
});
</script>
//将事件侦听器放置到位
addEventListener(“DOMContentLoaded”,函数(){
//抓取元素、创建设置等。
var canvas=document.getElementById(“canvas”),
context=canvas.getContext(“2d”),
video=document.getElementById(“视频”),
videoObj={“video”:true},
errBack=函数(错误){
日志(“视频捕获错误:”,错误代码);
};
//将视频侦听器放置到位
if(navigator.getUserMedia){//Standard
getUserMedia(videoObj,函数(流){
video.src=流;
video.play();
},errBack);
}else if(navigator.webkitGetUserMedia){//WebKit前缀
webkitGetUserMedia(videoObj,函数(流){
video.src=window.webkitURL.createObjectURL(流);
video.play();
},errBack);
}
else if(navigator.mozzetusermedia){//Firefox前缀
mozGetUserMedia(videoObj,函数(流){
video.src=window.URL.createObjectURL(流);
video.play();
},errBack);
}
},假);
//触发拍照
document.getElementById(“snap”).addEventListener(“单击”,函数)(){
drawImage(视频,0,0,100,100);
});
从iOS 6及以后,您只需使用输入标记即可:
<input type="file" />
它将启动/允许访问相机/照片