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我有一個使用獲取用戶媒體的MVC 4網絡應用程序。我也有針對API 18，該設備是API 19一個Android的WebView，但我從控制檯日誌得到的錯誤是Getusermedia不適用於api的webview設備19設備
source: https://dev.*****.com/truck/home/addpic?truck=C090P (0)
11-25 11:40:19.705 32382-32382/*****.com.trucksurvey I/chromium: [INFO:CONSOLE(0)] "The page at https://dev.****.com/truck/home/addpic?truck=C090P displayed insecure content from android-webview:default_video_poster/8264335106592469907.
的應用程序工作正常，在鍍鉻一臺筆記本電腦，一個電話我不能得到它雖然工作。
有一個SSL證書連接，並使用getusermedia（）使用相機和拍照以下是代碼：從MVC
/*
** My jquery/js for handleing the image taking portion
**
*/
if (window.location.href.indexOf("addpic") > -1) {
var canvas = document.getElementById("kfCanvas"),
context = canvas.getContext("2d"),
video = document.getElementById("video");
var canvas2 = document.getElementById("Canvas"),
context2 = canvas2.getContext("2d"),
video = document.getElementById("video");
// Put event listeners into place
window.addEventListener("DOMContentLoaded", function() {
// Grab elements, create settings, etc.
var videoObj = { "video": true, video: {width:400, height:300},"facingMode": "environment" },
errBack = function (error) {
console.log("Video capture error: ", error.code);
$("#drawingForm").hide();
};
// 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);
document.getElementById("snap").addEventListener("click", function() {
context.drawImage(video, 0, 0, 800, 600);
context2.drawImage(video, 0, 0, 400, 300);
// Generate the image data
var Pic = canvas.toDataURL("image/png");
Pic = Pic.replace(/^data:image\/(png|jpg);base64,/, "")
$("#vid").hide();
$("#drawingForm").show();
$('kfCanvas').hide();
});
$("#btnSave").click(function() {
var form = $("#drawingForm");
var image = document.getElementById("kfCanvas").toDataURL("image/png");
image = image.replace('data:image/png;base64,', '');
$("#imageData").val(image);
form.submit();
});
$("#btnRedo").click(function() {
$("#vid").show();
$("#drawingForm").hide();
});
}
我的觀點：
從MVC應用程序JS 4：
@model truckEval.Models.DrawingModel
@{
ViewBag.Title = "Add a picture";
}
<div style="margin-left:0px;">
<div style="position:absolute;z-index:1000;max-width:480px;" id="vid">
<button id="snap" >Snap Photo</button>
<video id="video" width="400" height="300" autoplay></video>
</div>
<div style="position:absolute;">
@using (Html.BeginForm(null, null, FormMethod.Post, new { id ="drawingForm" }))
{
<input type="hidden" name="imageData" id="imageData" />
<input type="button" id="btnSave" value="Save Image" />
<input type="button" id="btnRedo" value="Try Again" />
<input type="hidden" name="trucknum" value="@ViewBag.trucknum" />
<input type="hidden" name="tID" value="@ViewBag.ID" />
<canvas id="Canvas" width="400" height="300">Sorry, your browser doesn't support canvas technology.
</canvas>
}
</div>
<div style="display:none">
<canvas id="kfCanvas" width="800" height="600">Sorry, your browser doesn't support canvas technology.
</canvas>
</div>
</div>
<div style="margin-left:500px;">
<h2>Truck# @ViewBag.ID</h2>
<div style="position:relative;">
<a class="ui-btn ui-btn-up-b ui-shadow ui-btn-corner-all" style="padding-top:10px;padding-bottom:10px;width:25%;" href="@Url.Action("Index","home")" >Back home</a>
</div>
<br />
</div>
聯機幫助建議我把我的網絡設置以下
webView.getSettings().setMixedContentMode(WebSettings.MIXED_CONTENT_COMPATIBILITY_MODE);
但這只是API 21，它不能解決我的問題，實際上應用程序只是崩潰。如何在手機上爲webview和chrome解決這個問題。
我的Android的WebView代碼：
import android.annotation.TargetApi;
import android.content.Intent;
import android.net.Uri;
import android.net.http.SslError;
import android.os.Build;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.util.Log;
import android.webkit.PermissionRequest;
import android.webkit.SslErrorHandler;
import android.webkit.WebChromeClient;
import android.webkit.WebSettings;
import android.webkit.WebView;
import android.webkit.WebViewClient;
public class MainActivity extends AppCompatActivity {
private String TAG ="MainActivity";
public WebView webview;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
//webview use to call own site
webview =(WebView)findViewById(R.id.webView);
// for regular sites
// webview.setWebViewClient(new WebViewClient());
// for ssl certs that look invalid
webview.setWebViewClient(new SSLTolerentWebViewClient());
webview.getSettings().setJavaScriptEnabled(true);
if (Build.VERSION.SDK_INT >= 21) {
webview.getSettings().setMixedContentMode(WebSettings.MIXED_CONTENT_ALWAYS_ALLOW);
}
// for camera only
webview.getSettings().setAllowContentAccess(true);
// webview.getSettings().setJavaScriptEnabled(true);
webview.getSettings().setAllowFileAccessFromFileURLs(true);
webview.getSettings().setAllowUniversalAccessFromFileURLs(true);
webview.getSettings().setMediaPlaybackRequiresUserGesture(false);
webview.setWebChromeClient(new WebChromeClient(){
@Override
public void onPermissionRequest(final PermissionRequest request){
Log.d(TAG, "onPermissionRequest");
MainActivity.this.runOnUiThread(new Runnable(){
@TargetApi(Build.VERSION_CODES.LOLLIPOP)
@Override
public void run(){
request.grant(request.getResources());
}
});
}
});
webview.getSettings().setAllowContentAccess(true);
webview.getSettings().setDomStorageEnabled(true);
if (Build.VERSION.SDK_INT <= 18) {
webview.getSettings().setSavePassword(false);
} else {
// do nothing. because as google mentioned in the documentation -
// "Saving passwords in WebView will not be supported in future versions"
}
webview.getSettings().setSaveFormData(false);
webview.clearFormData();
String url = "https://dev.*****.com/truck";
webview.loadUrl(url);
}
// for ssl certs that appear invalid
private class SSLTolerentWebViewClient extends WebViewClient {
@Override
public void onReceivedSslError(WebView view, SslErrorHandler handler, SslError error) {
handler.proceed(); // Ignore SSL certificate errors
}
}
}
你有使用的調試和驗證了handler.proceed（）實際上被調用？ –
是的，是的。它爲頁面提供了很好的服務，它只是不會爲getusermedia運行javascript。頁面加載。減去功能。 – Danimal