App is based on webRTC vs websocket . Android studio 2.3.2 last version.
I already use:
https protocol , autoplay , android version 7.0 (min > android 5.0) . App works on all supported browsers only android webview generate error.
This is first lines of errors log in logcat (android studio last ver):
E/chromium: [ERROR:audio_manager_android.cc(264)] Unable to select audio device! E/cr_VideoCapture: allocate: manager.openCamera: SecurityException: validateConnectLocked:1112: Caller "com.testwebrtc.nikola.myapplication" cannot open camera "1" without camera permission at android.hardware.camera2.CameraManager.throwAsPublicException(CameraManager.java:628) at android.hardware.camera2.CameraManager.openCameraDeviceUserAsync(CameraManager.java:347) at android.hardware.camera2.CameraManager.openCamera(CameraManager.java:450) at org.chromium.media.VideoCaptureCamera2.startCapture(VideoCaptureCamera2.java:661)
Other variant for error:
[ERROR:web_contents_delegate.cc(199)] WebContentsDelegate::CheckMediaAccessPermission: Not supported.
This is error log from chrome/webview (from errorCallBack - getUserMedia ):
An error occcurred [CODE NotAllowedError]
other error variant:
trackstarterror
Android Code looks like:
package com.project.TEST.xxx;
import android.annotation.TargetApi;
import android.app.Activity;
import android.app.Fragment;
import android.app.FragmentManager;
import android.content.Context;
import android.os.Build;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.webkit.CookieManager;
import android.webkit.PermissionRequest;
import android.webkit.WebChromeClient;
import android.webkit.WebSettings;
import android.webkit.WebView;
import android.webkit.WebViewClient;
import android.widget.TextView;
public class MainActivity extends AppCompatActivity {
private static final String TAG = MainActivity.class.getSimpleName();
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
FragmentManager fragmentManager = getFragmentManager();
fragmentManager.beginTransaction()
.replace(R.id.container, PlaceholderFragment.newInstance(1) )
.commit();
}
/**
* A placeholder fragment containing a simple view.
*/
public static class PlaceholderFragment extends Fragment {
/**
* The fragment argument representing the section number for this
* fragment.
*/
private static final String ARG_SECTION_NUMBER = "section_number";
/**
* Returns a new instance of this fragment for the given section
* number.
*/
public static PlaceholderFragment newInstance(int sectionNumber) {
PlaceholderFragment fragment = new PlaceholderFragment();
Bundle args = new Bundle();
args.putInt(ARG_SECTION_NUMBER, sectionNumber);
fragment.setArguments(args);
return fragment;
}
private WebView mWebRTCWebView;
public PlaceholderFragment() {
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.fragment_main, container, false);
mWebRTCWebView = (WebView) rootView.findViewById(R.id.fragment_main_webview);
setUpWebViewDefaults(mWebRTCWebView);
mWebRTCWebView.loadUrl("https://example.com/");
mWebRTCWebView.setWebChromeClient(new WebChromeClient() {
@Override
public void onPermissionRequest(final PermissionRequest request) {
Log.d(TAG, "onPermissionRequest");
getActivity().runOnUiThread(new Runnable() {
@TargetApi(Build.VERSION_CODES.LOLLIPOP)
@Override
public void run() {
request.grant(request.getResources());
}
});
}
});
return rootView;
}
@Override
public void onStop() {
super.onStop();
/**
* When the application falls into the background we want to stop the media stream
* such that the camera is free to use by other apps.
*/
mWebRTCWebView.evaluateJavascript("if(window.localStream){window.localStream.stop();}", null);
}
/*
@Override
public void onAttach(Activity activity) {
super.onAttach(activity);
((MainActivity) activity).onSectionAttached(
getArguments().getInt(ARG_SECTION_NUMBER));
}
*/
@Override
public void onAttach(Context context) {
super.onAttach(context);
Activity a;
if (context instanceof Activity){
a=(Activity) context;
}
}
/**
* Convenience method to set some generic defaults for a
* given WebView
*
* @param webView
*/
@TargetApi(Build.VERSION_CODES.LOLLIPOP)
private void setUpWebViewDefaults(WebView webView) {
WebSettings settings = webView.getSettings();
// Enable Javascript
settings.setJavaScriptEnabled(true);
// Use WideViewport and Zoom out if there is no viewport defined
settings.setUseWideViewPort(true);
settings.setLoadWithOverviewMode(true);
// Enable pinch to zoom without the zoom buttons
settings.setBuiltInZoomControls(true);
// Allow use of Local Storage
settings.setDomStorageEnabled(true);
if(Build.VERSION.SDK_INT > Build.VERSION_CODES.HONEYCOMB) {
// Hide the zoom controls for HONEYCOMB+
settings.setDisplayZoomControls(false);
}
// Enable remote debugging via chrome://inspect
if(Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) {
WebView.setWebContentsDebuggingEnabled(true);
}
webView.setWebViewClient(new WebViewClient());
// AppRTC requires third party cookies to work
CookieManager cookieManager = CookieManager.getInstance();
cookieManager.setAcceptThirdPartyCookies(mWebRTCWebView, true);
}
}
}
Build.gradle-project :
// Top-level build file where you can add configuration options common to all sub-projects/modules.
buildscript {
repositories {
jcenter()
}
dependencies {
classpath 'com.android.tools.build:gradle:2.3.2'
// NOTE: Do not place your application dependencies here; they belong
// in the individual module build.gradle files
}
}
allprojects {
repositories {
jcenter()
}
}
task clean(type: Delete) {
delete rootProject.buildDir
}
gradle - module:
apply plugin: 'com.android.application'
android {
compileSdkVersion 25
buildToolsVersion "25.0.3"
defaultConfig {
applicationId "com.project.test.xxx"
minSdkVersion 21
targetSdkVersion 25
versionCode 1
versionName "1.0"
testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
externalNativeBuild {
cmake {
cppFlags "-fexceptions"
}
}
}
buildTypes {
release {
minifyEnabled false
proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
}
}
externalNativeBuild {
cmake {
path "CMakeLists.txt"
}
}
}
dependencies {
compile fileTree(dir: 'libs', include: ['*.jar'])
androidTestCompile('com.android.support.test.espresso:espresso-core:2.2.2', {
exclude group: 'com.android.support', module: 'support-annotations'
})
compile 'com.android.support:appcompat-v7:25.3.1'
compile 'com.android.support.constraint:constraint-layout:1.0.2'
testCompile 'junit:junit:4.12'
}
Android Manifest.xml :
....
<uses-permission android:name="android.permission.CAMERA" />
<uses-permission android:name="android.permission.CAPTURE_SECURE_VIDEO_OUTPUT" />
<uses-permission android:name="android.permission.CAPTURE_VIDEO_OUTPUT" />
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.RECORD_AUDIO" />
<uses-permission android:name="android.permission.MODIFY_AUDIO_SETTINGS" />
<uses-permission android:name="android.permission.CAPTURE_AUDIO_OUTPUT" />
<uses-feature android:name="android.hardware.camera.autofocus" android:required="true" />
<uses-feature android:name="android.hardware.camera.front" android:required="true" />
<uses-feature android:name="android.hardware.camera" android:required="true" />
<uses-feature android:name="android.hardware.camera.level.full" android:required="true" />
<uses-feature android:name="android.hardware.camera.capability.raw" android:required="true" />
<uses-feature android:name="android.hardware.camera.any" android:required="true" />
<uses-feature android:name="android.hardware.microphone" android:required="true" />
<uses-feature android:name="android.hardware.camera2" android:required="true" />
...
Using WebRTC as a WebView in your app. WebView lets you get a browser-like interface right within your mobile application. The WebView allows users to display web content directly within an application.
No, Chrome for Android is separate from WebView. They're both based on the same code, including a common JavaScript engine and rendering engine.
In order to be able to use camera, for example, for taking images through <input type="file" accept="image/*" capture> HTML tag, you need to ask camera permission. If you need to capture video and audio, you need to ask also microphone permission.
You might often face issues in updating the chrome and Android System Webview. To fix this problem, you can reboot your device, check your internet connection, stop auto-updating all apps, clear Google Playstore cache, and storage, leave the beta testing program, and manually update Android WebView app from Playstore.
its problems for reload the webview , after too much research , found this code and create this below code :-
mwebView.setWebChromeClient(new WebChromeClient() {
@Override
public void onPermissionRequest(final PermissionRequest request) {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
myRequest = request;
for (String permission : request.getResources()) {
if (permission.equals("android.webkit.resource.AUDIO_CAPTURE")) {
demandForPermission(request.getOrigin().toString(), Manifest.permission.RECORD_AUDIO, MY_PERMISSIONS_REQUEST_RECORD_AUDIO);
} else {
myRequest.grant(request.getResources());
}
}
}
}
@Override
public void onPermissionRequestCanceled(PermissionRequest request) {
super.onPermissionRequestCanceled(request);
}
more info in this page Android Webview
Grant permissions in this way:
yourWebView.setWebChromeClient(new WebChromeClient() {
@Override
public void onPermissionRequest(PermissionRequest request) {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
request.grant(request.getResources());
}
}
});
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