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How can I handle mailto and tel in android webview

I already make a java WebView for my website, this website in the footer the phone number and the email address when I click in it they told me (the webpage at tel could not be loaded because err_unknown_url_scheme), What should i do ?
MainActivity.Java
package xxx.xxxxxxx.xxxxxxxxx;
import androidx.appcompat.app.AppCompatActivity;
import android.annotation.SuppressLint;
import android.os.Bundle;
import android.webkit.WebSettings;
import android.webkit.WebView;
import android.webkit.WebViewClient;
import java.util.Objects;
public class MainActivity extends AppCompatActivity {
private WebView webView;
#SuppressLint("SetJavaScriptEnabled")
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
try
{
Objects.requireNonNull(this.getSupportActionBar()).hide();
}
catch (NullPointerException ignored){}
//find the view
webView = findViewById(R.id.webview);
// to load all the web page in app itself use this
webView.setWebViewClient(new WebViewClient());
webView.loadUrl("https://www.ezyadvs.com");
WebSettings webSettings =webView.getSettings();
//if your website is using any javascript that needs to load some script then you need to enable javascript in android application
webSettings.setJavaScriptEnabled(true);
}
#Override
public void onBackPressed() {
// if any previous webpage exist then onback pressed will take care of it
if(webView.canGoBack())
{
webView.goBack();
}else{
//else it will exit the application
super.onBackPressed();
}
}
}

Here is my solution in .kt (kotlin) :
this.webView.webViewClient = object : WebViewClient() {
override fun shouldOverrideUrlLoading(view: WebView?, url: String?): Boolean {
//add condition startsWith("tel:") or startsWith("mailto:")
if (url!!.startsWith("whatsapp:")) {
val intent = Intent(Intent.ACTION_VIEW)
intent.data = Uri.parse(url)
startActivity(intent)
return true
}
return false
}
}

Google Maps link not opening from webView on Android App

I am loading a webView in my app that displays some buttons, each button starts a route that is generated using google maps.
The problem is that when I click "Navigate in app" nothing happens.
I was having the URL_UNKOWN_SCHEME error but solved it by adding and #override
My code looks like this:
package com.example.listarehtgps2;
import androidx.appcompat.app.AppCompatActivity;
import android.content.Intent;
import android.net.Uri;
import android.os.Bundle;
import android.view.KeyEvent;
import android.view.Window;
import android.webkit.WebResourceRequest;
import android.webkit.WebSettings;
import android.webkit.WebView;
import android.webkit.WebViewClient;
public class MainActivity extends AppCompatActivity {
WebView web;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
web = findViewById(R.id.webview);
WebSettings webSettings = web.getSettings();
webSettings.setJavaScriptEnabled(true);
web.loadUrl("webViewURL replaced for privacy reasons");
web.setWebViewClient(new WebViewClient() {
#Override
public boolean shouldOverrideUrlLoading(WebView view, String url) {
// When user clicks a hyperlink, load in the existing WebView
if(url.contains("intent:")) {
Uri gmmIntentUri = Uri.parse(url);
Intent mapIntent = new Intent(Intent.ACTION_VIEW, gmmIntentUri);
startActivity(mapIntent);
return true;
}
view.loadUrl(url);
return true;
}
}
);
}
}
I can not find any solution to open the link in the google maps app.
I managed to solve the UNKWN_URL_SCHEME but this is frustrating now.
Thanks in advance!

The URL_UNKOWN_SCHEME is because it's not recognising the scheme part of your URI (the bit up to :), are your URIs simply starting with "intent:" ?
To open a map at a location, try switching to the geo scheme, so a URI something like "geo:0.01,0.01?q=London" (along ofc with changing your url.contains check to look for that). You could also insert a mapIntent.setPackage("com.google.android.apps.maps") before the call to startActivity(mapIntent) if you want Google maps to take priority over any other map application the user may have installed.
If however you want navigation, use a URI starting with google.navigation such as "google.navigation:London" or "google.navigation:0.01,0.01", equally for street view you can use a URI starting with google.streetview

Whatapp share from Android webview is not working

I'm new to Android & I know this is repeatedly answered question & I found lot of conversations on this question but finally same answer. When I tried that answer, it is not working.
I converted my website into Android app, it is working fine !! when I tried to share the link from my webview to whatsapp, it is giving below error
net::ERR_UNKNOWN_URL_SCHEME
To fix this, I have seen many suggestions with shouldOverrideUrlLoading. I tried but no luck
My Code:
package com.example.abcdefgh;
import android.net.Uri;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.webkit.WebSettings;
import android.webkit.WebView;
import android.webkit.WebViewClient;
import android.content.Intent;
public
class MainActivity extends AppCompatActivity {
WebView mywebView;
#Override
protected
void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
mywebView = (WebView) findViewById(R.id.webview);
mywebView.setWebViewClient(new WebViewClient());
mywebView.loadUrl("http://www.abcdefgh.com");
WebSettings webSettings = mywebView.getSettings();
webSettings.setJavaScriptEnabled(true);
}
public class mywebClient extends WebViewClient {
#Override
public
boolean shouldOverrideUrlLoading(WebView view, String url) {
if (url.startsWith("whatsapp:")) {
Intent intent = new Intent(Intent.ACTION_VIEW);
intent.setData(Uri.parse(url));
startActivity(intent);
return true;
} else {
return false;
}
}
}
#Override
public void onBackPressed() {
if (mywebView.canGoBack()) {
mywebView.goBack();
} else {
super.onBackPressed();
}
}
}
I don't know what is the issue, please help me

WebView opens static version of website

import android.app.Activity;
import android.os.Bundle;
import android.webkit.WebView;
import android.webkit.WebViewClient;
public class MainActivity extends Activity {
private WebView mWebView;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
mWebView = (WebView) findViewById(R.id.web_view);
mWebView.getSettings().setJavaScriptEnabled(true);
mWebView.setWebViewClient(new CustomWebViewClient());
mWebView.loadUrl("http://groupedirectouest.com");
}
}
class CustomWebViewClient extends WebViewClient {
#Override
public boolean shouldOverrideUrlLoading(WebView view, String url) {
view.loadUrl(url);
return true;
}
}
when I use ua (userAgent) string, webview shows desktop version of website.
here is the ua string i have used :
mWebView.getSettings().setUserAgentString("AppleWebkit/534.30 (KHTML, like Gecko) Version/4.0 Mobile Safari/534.30");
here is the website that i am trying to open in my
http://groupedirectouest.com/
it works fine with chrome but webview.

Now there are custom chrome tabs for you!
The WebView is good solution if you are hosting your own content inside your app. If your app directs people to URLs outside your domain,it is now recommended that you use Chrome custom tabs for various benefits.Follow the link below:
https://developer.chrome.com/multidevice/android/customtabs

webView.loadUrl is not working

This is my code:
package sai.datla.game;
import android.app.Activity;
import android.os.Bundle;
import android.webkit.WebChromeClient;
import android.webkit.WebView;
public class GametestActivity extends Activity {
/** Called when the activity is first created. */
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
WebView webView = (WebView)findViewById(R.id.webView);
webView.getSettings().setJavaScriptEnabled(true);
webView.setWebChromeClient(new WebChromeClient());
webView.clearSslPreferences();
webView.loadUrl("file:///android_asset/www/index.html");
}
}
but it is saying that it cannot find the link in the emulator. I have checked many times if my index.html file is in the www folder, which is in my assets, but it won't work. Please help.
By the way I am only twelve years old so please make the answers easy to understand for a child.

// Find view in layout
WebView wv = (WebView) findViewById(R.id.webView_tobe_loaded);
// Get settings
WebSettings wbset = wv.getSettings();
// Enable JavaScript
wbset.setJavaScriptEnabled(true);
// Set new client (to handle website in your app)
wv.setWebViewClient(new MyWebViewClient());
// Example of the URL
String url = "http://www.google.com";
// Load website
wv.loadUrl(url);
This code will help you to solve the problem.
It worked for me.

instead of loadUrl, try using the loadDataWithBaseURL method:
webview.loadDataWithBaseURL("android.resource://<package_name>/assets/www/file_name", html, mimeType, encoding, "");