Access camera in android WebView to stream on agora

Access camera in android WebView to stream on agora - android

I am developing a web app which I would now like to make an android app for. For testing, a simple WebView is enough.
Now the issue is that whenever a regular desktop web browser asks for camera and microphone permissions, the app does nothing. It doesn't crash but it also doesn't join the stream.
What do I have to do in order to fix this?
So far, I have the following Code:
AndroidManifest.xml:
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.techadvice">
<uses-permission android:name="android.permission.INTERNET"></uses-permission>
<uses-permission android:name="android.permission.CAMERA"></uses-permission>
<uses-permission android:name="android.webkit.PermissionRequest" />
<uses-feature android:name="android.hardware.camera"/>
<application
android:usesCleartextTraffic="true"
android:allowBackup="true"
android:icon="#mipmap/ic_launcher"
android:label="#string/app_name"
android:roundIcon="#mipmap/ic_launcher_round"
android:supportsRtl="true"
android:theme="#style/AppTheme">
<activity android:name=".MainActivity">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
</manifest>
MainActivity.java:
package com.example.techadvice;
import androidx.appcompat.app.AppCompatActivity;
import android.graphics.Bitmap;
import android.os.Bundle;
import android.webkit.WebSettings;
import android.webkit.WebView;
import android.webkit.WebViewClient;
public class MainActivity extends AppCompatActivity {
private WebView myWebView;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
myWebView=(WebView) findViewById(R.id.webview);
WebSettings webSettings=myWebView.getSettings();
webSettings.setJavaScriptEnabled(true);
webSettings.setAllowFileAccessFromFileURLs(true);
webSettings.setAllowUniversalAccessFromFileURLs(true);
myWebView.getSettings().setCacheMode(webSettings.LOAD_NO_CACHE);
myWebView.setWebViewClient(new WebViewClient());
myWebView.loadUrl("%some url%");
}
public class mywebClient extends WebViewClient{
#Override
public void onPageStarted(WebView view, String url, Bitmap favicon){
super.onPageStarted(view,url,favicon);
}
#Override
public boolean shouldOverrideUrlLoading(WebView view,String url){
view.loadUrl(url);
return true;
}
}
#Override
public void onBackPressed(){
if(myWebView.canGoBack()) {
myWebView.goBack();
}
else{
super.onBackPressed();
}
}
}
I was mostly following this tutorial: https://youtu.be/2cWbepS1NZM
Thanks in advance!

In your onCreate you can check for permission and request it if the permission hasn't been granted already. You can try something like this:
int MY_PERMISSIONS_REQUEST_CAMERA = 0;
if (ContextCompat.checkSelfPermission(this, Manifest.permission.CAMERA) != PackageManager.PERMISSION_GRANTED || ContextCompat.checkSelfPermission(this, Manifest.permission.RECORD_AUDIO) != PackageManager.PERMISSION_GRANTED) {
ActivityCompat.requestPermissions(this, new String[]{Manifest.permission.CAMERA, Manifest.permission.RECORD_AUDIO}, MY_PERMISSIONS_REQUEST_CAMERA);
}

Related

How to provide access to video source to an Android webview app?

I'm embedding a website that uses video source from a device to classify certain objects. I am using Android Studio and Webview for embedding the website but I'm getting stuck in reading the video source from the app. Below is the code that I've used so far.
MainActivity.java
package com.example.xxx;
import android.os.Bundle;
import android.webkit.PermissionRequest;
import android.webkit.WebChromeClient;
import android.webkit.WebView;
import android.webkit.WebViewClient;
import com.example.xxx.R;
import androidx.appcompat.app.AppCompatActivity;
public class MainActivity extends AppCompatActivity {
String websiteURL = "https://smartphone.edgeimpulse.com/classifier.html?apiKey=ei_c728c47b9eeeaf5604fb4d666a5a48e2813513647e75d9ab322fe16f867a6f92"; // sets web url
private WebView webview;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
//Webview stuff
webview = findViewById(R.id.webView);
webview.getSettings().setJavaScriptEnabled(true);
webview.getSettings().setDomStorageEnabled(true);
webview.setOverScrollMode(WebView.OVER_SCROLL_NEVER);
webview.loadUrl(websiteURL);
webview.setWebChromeClient(new WebChromeClient() {
#Override
public void onPermissionRequest(final PermissionRequest request) {
request.grant(request.getResources());
}
});
}}
AndroidManifest.xml
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
package="com.example.edgeimpulse">
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.CAMERA" />
<uses-permission android:name="android.permission.CAPTURE_VIDEO_OUTPUT" />
<uses-permission android:name="android.permission.RECORD_AUDIO" />
<application
android:allowBackup="true"
android:dataExtractionRules="#xml/data_extraction_rules"
android:fullBackupContent="#xml/backup_rules"
android:icon="#mipmap/ic_launcher"
android:label="#string/app_name"
android:roundIcon="#mipmap/ic_launcher_round"
android:supportsRtl="true"
android:theme="#style/Theme.EdgeImpulse"
tools:targetApi="31">
<activity
android:name=".MainActivity"
android:exported="true">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
</manifest>
Here is the error I'm getting:
Can someone help me out with this?

Android web application: Application does not have sufficient geolocation permissions

I am trying to make an Android App that just shows a map inside a WebView component.
I have started with the How to Convert a Website into an Android Application using Android Studio tutorial and then try to allow the browser to use JavaScript and the position of the device.
To allow the WebView to use the position I have applied the following guides and answers
Enable GeoLocation On Webview
android webview geolocation
Enable Geolocation in a WebView (Android)
but, when I click on the current position button, I still get the following message:
Geolocation error: Application does not have sufficient geolocation
permissions..
I don't think this is a duplicate question as this is specific about Leafet map JS library and about a specific case.
What I have tried
At the moment my app is made of the following files:
MainActivity.java
package com.vinaysomawat.careerhigh;
import android.support.v7.app.ActionBarActivity;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuItem;
import android.webkit.WebSettings;
import android.webkit.WebView;
import android.webkit.WebViewClient;
import android.webkit.GeolocationPermissions;
import android.webkit.WebChromeClient;
public class MainActivity extends ActionBarActivity {
//private WebView mywebview;
public class GeoWebViewClient extends WebViewClient {
#Override
public boolean shouldOverrideUrlLoading(WebView view, String url) {
// When user clicks a hyperlink, load in the existing WebView
view.loadUrl(url);
return true;
}
}
//public class GeoWebChromeClient extends WebChromeClient {
public class GeoWebChromeClient extends android.webkit.WebChromeClient {
#Override
public void onGeolocationPermissionsShowPrompt(String origin,
//GeolocationPermissions.Callback callback) {
android.webkit.GeolocationPermissions.Callback callback){
// Always grant permission since the app itself requires location
// permission and the user has therefore already granted it
callback.invoke(origin, true, false);
}
}
WebView mywebview;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
mywebview = (WebView)findViewById(R.id.webView);
WebSettings webSettings = mywebview.getSettings();
mywebview.getSettings().setJavaScriptCanOpenWindowsAutomatically(true);
mywebview.getSettings().setBuiltInZoomControls(true);
mywebview.setWebViewClient(new GeoWebViewClient());
// Below required for geolocation
mywebview.getSettings().setJavaScriptEnabled(true);
mywebview.getSettings().setGeolocationEnabled(true);
mywebview.setWebChromeClient(new GeoWebChromeClient());
mywebview.getSettings().setAppCacheEnabled(true);
mywebview.getSettings().setDatabaseEnabled(true);
mywebview.getSettings().setDomStorageEnabled(true);
mywebview.getSettings().setGeolocationDatabasePath(getFilesDir().getPath());
mywebview.loadUrl("https://domoritz.github.io/leaflet-locatecontrol/demo/");
}
#Override
public void onBackPressed(){
if(mywebview.canGoBack()) {
mywebview.goBack();
} else
{
super.onBackPressed();
}
}
#Override
public boolean onCreateOptionsMenu(Menu menu){
getMenuInflater().inflate(R.menu.menu_main, menu);
return true;
}
#Override
public boolean onOptionsItemSelected(MenuItem item){
int id = item.getItemId();
if(id == R.id.action_settings){
return true;
}
return super.onOptionsItemSelected(item);
}
}
AndroidManifest.xml
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.vinaysomawat.careerhigh"
android:installLocation="auto">
<uses-sdk android:minSdkVersion="8" />
<uses-permission android:name="android.permission.INTERNET"/>
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION"/>
<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION"/>
<application
android:allowBackup="true"
android:icon="#mipmap/faviconcircular"
android:label="#string/app_name"
android:roundIcon="#mipmap/faviconcircular"
android:supportsRtl="true"
android:theme="#style/AppTheme">
<activity android:name=".SplashActivity" android:theme="#style/SplashTheme">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity android:name=".MainActivity" />
</application>
</manifest>
activity_main.xml
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".MainActivity">
<WebView
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:id="#+id/webView"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true"
android:layout_alignParentTop="true"
android:layout_alignParentRight="true"
android:layout_alignParentEnd="true" />
</RelativeLayout>
How can I fix the geolocation problem? Thank you in advice.

Add this to your class with your permissions and then call it in onCreate
private fun checkPermissions() {
val permission = ActivityCompat.checkSelfPermission(
this#MainActivity,
Manifest.permission.WRITE_EXTERNAL_STORAGE
)
if (permission != PackageManager.PERMISSION_GRANTED) {
ActivityCompat.requestPermissions(
this#MainActivity,
permissions,
requestExternalStorageCode
)
}
}
Also do not forget to override permissions callback to check if user granted you permissions:
override fun onRequestPermissionsResult(
requestCode: Int,
permissions: Array<out String>,
grantResults: IntArray
) {
super.onRequestPermissionsResult(requestCode, permissions, grantResults)
if (requestCode == requestExternalStorageCode) {
if (grantResults.size > 1 && grantResults[0] == PackageManager.PERMISSION_GRANTED) {
//to whatever you need after the permission is granted
} else {
finish()
}
}
}

Why my android studio web view app goes blank white after splash screen in signed release and works perfect id debug?

Some how it works on older devices but i tried in 2 new devices the release app doesnt work its shows a white blank screeen after splash screen
And there is no error showing please answer me
main activity
private WebView mywebview;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
mywebview = (WebView) findViewById(R.id.webview);
WebSettings webSettings = mywebview.getSettings();
mywebview.setWebViewClient(new WebViewClient());
mywebview.loadUrl("https://netixshop.com/");
webSettings.setJavaScriptEnabled(true);
webSettings.setDomStorageEnabled(true);
}
public class myWebClient extends WebViewClient {
#Override
public void onPageStarted(WebView view, String url, Bitmap favicon) {
super.onPageStarted(view, url, favicon);
}
#Override
public boolean shouldOverrideUrlLoading(WebView view, String url) {
view.loadUrl(url);
return true;
}
}
#Override
public void onBackPressed() {
if (mywebview.canGoBack()) {
mywebview.goBack();
}else{
super.onBackPressed();
}
}
}
here is my manifest
pleasse check this out and find why is the error caused
android manifest
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION"/>
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION"/>
<application
android:usesCleartextTraffic="true"
android:allowBackup="true"
android:icon="#mipmap/ic_launcher"
android:label="#string/app_name"
android:roundIcon="#mipmap/ic_launcher_round"
android:supportsRtl="true"
android:theme="#style/AppTheme"
tools:ignore="GoogleAppIndexingWarning">
<activity android:name=".MainActivity"></activity>
<activity android:name=".splashactivity">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
</manifest>```

Probably you didn't add the internet permission to Manifest file while it is added to debug manifest file by default. So you need to add the internet permission;
<uses-permission android:name="android.permission.INTERNET" />
and if you work with android 8 or above, probably you will need to add this line under application tag for accessing to non-https web urls;
android:usesCleartextTraffic="true"
finally it will look like this;
<?xml version="1.0" encoding="utf-8"?>
<manifest ...>
<uses-permission android:name="android.permission.INTERNET" />
<application
...
android:usesCleartextTraffic="true"
...>
...
</application>
</manifest>

how to mopub ads add in application

i want to add ads banner in my application i have integrate mopub sdk with my project and import and add library to the my project now my question is how to add banner disply and where code i have to write in my application java code and xml code about ads so please help enyone
my java code and mainifest file code is given below
mainactivity.java
package com.example.ration;
import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.ViewGroup;
import android.os.Build;
import android.webkit.WebView;
import android.webkit.WebViewClient;
import android.widget.Toast;
public class MainActivity extends Activity {
private WebView web;
int k;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
web=(WebView)findViewById(R.id.web);
web.getSettings().setJavaScriptEnabled(true);
web.setWebViewClient(new WebViewClient());
web.getSettings().setBuiltInZoomControls(true);
web.loadUrl("http://dcs-dof.gujarat.gov.in/live-info.htm");
// web.getProgress();
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
menu.add(0,1,menu.NONE,"About");
menu.add(0,2,menu.NONE,"Feedback");
return true;
}
#Override
public boolean onOptionsItemSelected(MenuItem item) {
int id=item.getItemId();
if(id == 1)
{
Toast.makeText(MainActivity.this,"About",Toast.LENGTH_LONG).show();
Intent i=new Intent(MainActivity.this,about.class);
startActivity(i);
}
else {
Toast.makeText(MainActivity.this,"Feedback",Toast.LENGTH_LONG).show();
Intent i2 =new Intent(MainActivity.this,feedback.class);
startActivity(i2);
}
return super.onOptionsItemSelected(item);
}
private boolean doubleBackToExitPressedOnce = false;
#Override
protected void onResume() {
super.onResume();
// .... other stuff in my onResume ....
this.doubleBackToExitPressedOnce = false;
}
#Override
public void onBackPressed() {
if (doubleBackToExitPressedOnce) {
super.onBackPressed();
return;
}
this.doubleBackToExitPressedOnce = true;
Toast.makeText(this,"Press Again to Exit", Toast.LENGTH_SHORT).show();
}
}
and my manifest file is
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.ration"
android:versionCode="1"
android:versionName="1.0" >
<uses-permission android:name="android.permission.ACCESS_WIFI_STATE"/>
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
<uses-sdk
android:minSdkVersion="8"
android:targetSdkVersion="18" />
<application
android:allowBackup="true"
android:icon="#drawable/icon"
android:label="#string/app_name"
android:theme="#style/AppTheme" >
<activity
android:name="com.example.ration.MainActivity"
android:label="#string/app_name" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity android:name="com.example.ration.about"></activity>
<activity android:name="com.example.ration.feedback"></activity>
<activity android:name="com.mopub.mobileads.MoPubActivity" android:configChanges="keyboardHidden|orientation"/>
<activity android:name="com.mopub.mobileads.MraidActivity" android:configChanges="keyboardHidden|orientation"/>
<activity android:name="com.mopub.mobileads.MraidBrowser" android:configChanges="keyboardHidden|orientation"/>
<activity android:name="com.mopub.mobileads.MraidVideoPlayerActivity" android:configChanges="keyboardHidden|orientation"/>
<activity android:name="com.google.ads.AdActivity" android:configChanges="keyboard|keyboardHidden|orientation|screenLayout|uiMode|screenSize|smallestScreenSize" />
<activity android:name="com.millennialmedia.android.MMActivity" android:theme="#android:style/Theme.Translucent.NoTitleBar" android:configChanges="keyboardHidden|orientation|keyboard" />
<activity android:name="com.millennialmedia.android.VideoPlayer" android:configChanges="keyboardHidden|orientation|keyboard" />
</application>
</manifest>

I think you should better go through the guide for Mopub Banner Ads Integration which explains you the steps of banner ads integration.
Hope this will help you.

Use view in XML file
<com.mopub.mobileads.MoPubView
android:id="#+id/mrect_view"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_gravity="center_horizontal"
android:layout_weight="1" />
in activity Load code
pass id of view in below function ,unit id of ur app,and keywords of cataogry of ads
public void loadMoPubView(MoPubView moPubView, String adUnitId, String keywords) {
if (moPubView == null) {
Utils.logToast(LockScreenActivity.this, "Unable to inflate MoPubView from xml.");
//Toast.makeText(this, "Unable to inflate MoPubView from xml.", Toast.LENGTH_SHORT).show();
return;
}
try {
Utils.validateAdUnitId(adUnitId);
} catch (IllegalArgumentException exception) {
Utils.logToast(LockScreenActivity.this, exception.getMessage());
return;
}
moPubView.setBannerAdListener(this);
moPubView.setAdUnitId(adUnitId);
moPubView.setKeywords(keywords);
moPubView.setAutorefreshEnabled(true);
moPubView.loadAd();
}

application runs but no app icon in emulator

In my code I have a webview. the code runs and shows the web content.But after pressing the backward key in emulator i can not see the app icon in it for reopening. the logcat shows the following error also
WebActivity.java
package example.webapp;
import android.os.Bundle;
import android.app.Activity;
import android.view.Menu;
import android.view.View;
import android.webkit.WebSettings;
import android.webkit.WebView;
import android.webkit.WebViewClient;
public class WebActivity extends Activity {
/** Called when the activity is first created. */
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_web);
WebView mainWebView = (WebView) findViewById(R.id.mainWebView);
WebSettings webSettings = mainWebView.getSettings();
webSettings.setJavaScriptEnabled(true);
mainWebView.setWebViewClient(new MyCustomWebViewClient());
mainWebView.loadUrl("http://google.com");
mainWebView.setScrollBarStyle(View.SCROLLBARS_INSIDE_OVERLAY);
}
private class MyCustomWebViewClient extends WebViewClient {
#Override
public boolean shouldOverrideUrlLoading(WebView view, String url) {
view.loadUrl(url);
return true;
}
}
}
logcat
08-22 17:53:11.464: E/geolocationService(278): Caught security exception registering for location updates from system. This should only happen in DumpRenderTree. please give me an answer
manifest file
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="example.webapp"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk
android:minSdkVersion="8"
android:targetSdkVersion="8" />
<uses-permission android:name="android.permission.INTERNET"/>
<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION"/>
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"/>
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION"/>
<application
android:allowBackup="true"
android:icon="#drawable/ic_launcher"
android:label="#string/app_name"
android:theme="#style/AppTheme" >
<activity
android:name="example.webapp.WebActivity"
android:label="#string/app_name" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
</manifest>

Develop Reference

The Android operating system is a mobile operating system that was developed by Google (GOOGL?) to be primarily used for touchscreen devices, cell phones, and tablets.

Access camera in android WebView to stream on agora - android

Related

How to provide access to video source to an Android webview app?

Android web application: Application does not have sufficient geolocation permissions

Why my android studio web view app goes blank white after splash screen in signed release and works perfect id debug?

how to mopub ads add in application

application runs but no app icon in emulator

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