Develop Reference

Closing dialog inside shouldOverrideUrlLoading() or ignoring in project, when is custom url open

I am trying to auth google user in WebView, I found a good solution for these days, it works fine for google login, but I cannot disable dialog in other urls like (, sms: , smsto:)
Example Situation: User click on telephone number in my app, it will open the phone dial, but when he returns back.. there is a empty dialog window with close button, i use it for google login with JS.
How can i close this dialog message inside the shouldOverrideUrlLoading()? Or is there any better solution to not open other links in the dialog? How can i improve my code to solve my problem? Thank you guys!
package com.example.app;
import android.annotation.SuppressLint;
import android.app.Activity;
import android.app.AlertDialog;
import android.content.Context;
import android.content.DialogInterface;
import android.content.Intent;
import android.net.Uri;
import android.net.http.SslCertificate;
import android.net.http.SslError;
import android.os.Bundle;
import android.os.Message;
import android.util.Log;
import android.view.View;
import android.view.WindowManager;
import android.webkit.CookieManager;
import android.webkit.JsResult;
import android.webkit.SslErrorHandler;
import android.webkit.URLUtil;
import android.webkit.WebChromeClient;
import android.webkit.WebSettings;
import android.webkit.WebView;
import android.webkit.WebViewClient;
import java.lang.reflect.Field;
import java.security.cert.X509Certificate;
import javax.net.ssl.TrustManager;
import javax.net.ssl.X509TrustManager;
public class MainActivity extends Activity {
private WebView mWebView;
private String userAgent;
private Context contextPop;
private WebView webViewPop;
private AlertDialog builder;
#Override
#SuppressLint("SetJavaScriptEnabled")
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
userAgent = System.getProperty("http.agent");
mWebView = findViewById(R.id.activity_main_webview);
WebSettings webSettings = mWebView.getSettings();
webSettings.setJavaScriptEnabled(true);
webSettings.setDomStorageEnabled(true);
webSettings.setUseWideViewPort(true);
webSettings.setAppCacheEnabled(false);
webSettings.setAllowFileAccess(true);
webSettings.setAllowFileAccessFromFileURLs(true);
webSettings.setAllowUniversalAccessFromFileURLs(true);
webSettings.setUserAgentString(userAgent+ "com.example.app");
mWebView.clearCache(true);
// REMOTE RESOURCE
mWebView.loadUrl("https://example.eu/");
mWebView.setWebChromeClient(new CustomChromeClient());
webSettings.setJavaScriptCanOpenWindowsAutomatically(true);
webSettings.setSupportMultipleWindows(true);
contextPop = this.getApplicationContext();
// LOCAL RESOURCE
// mWebView.loadUrl("file:///android_asset/index.html");
}
#Override
public void onBackPressed() {
if(mWebView.canGoBack()) {
mWebView.goBack();
} else {
super.onBackPressed();
}
}
final Context myApp = this;
class CustomChromeClient extends WebChromeClient {
#Override
public boolean onCreateWindow(WebView view, boolean isDialog,
boolean isUserGesture, Message resultMsg) {
webViewPop = new WebView(contextPop);
webViewPop.setWebViewClient(new WebViewClient() {
#Override
public boolean shouldOverrideUrlLoading(WebView view, String url) {
String host = Uri.parse(url).getHost();
if (url.startsWith("tel:") || url.startsWith("sms:") || url.startsWith("smsto:") || url.startsWith("mms:") || url.startsWith("mmsto:"))
{
webViewPop.destroy();
Intent intent = new Intent(Intent.ACTION_VIEW,Uri.parse(url));
startActivity(intent);
return true;
}
//Intent intent = new Intent(Intent.ACTION_VIEW, Uri.parse(url));
//view.getContext().startActivity(intent);
return false;
}
});
// Enable Cookies
CookieManager cookieManager = CookieManager.getInstance();
cookieManager.setAcceptCookie(true);
if (android.os.Build.VERSION.SDK_INT >= 21) {
cookieManager.setAcceptThirdPartyCookies(webViewPop, true);
cookieManager.setAcceptThirdPartyCookies(mWebView, true);
}
WebSettings popSettings = webViewPop.getSettings();
// WebView tweaks for popups
webViewPop.setVerticalScrollBarEnabled(false);
webViewPop.setHorizontalScrollBarEnabled(false);
popSettings.setJavaScriptEnabled(true);
popSettings.setSaveFormData(true);
popSettings.setEnableSmoothTransition(true);
// Set User Agent
popSettings.setUserAgentString(userAgent + "Your App Info/Version");
// to support content re-layout for redirects
popSettings.setLayoutAlgorithm(WebSettings.LayoutAlgorithm.SINGLE_COLUMN);
// handle new popups
webViewPop.setWebChromeClient(new CustomChromeClient());
// set the WebView as the AlertDialog.Builder’s view
builder = new AlertDialog.Builder(MainActivity.this, AlertDialog.THEME_DEVICE_DEFAULT_LIGHT).create();
builder.setTitle("");
builder.setView(webViewPop);
builder.setButton("Close", new DialogInterface.OnClickListener() {
#Override
public void onClick(DialogInterface dialog, int id) {
webViewPop.destroy();
dialog.dismiss();
}
});
builder.show();
builder.getWindow().clearFlags(WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE | WindowManager.LayoutParams.FLAG_ALT_FOCUSABLE_IM);
WebView.WebViewTransport transport = (WebView.WebViewTransport) resultMsg.obj;
transport.setWebView(webViewPop);
resultMsg.sendToTarget();
return true;
}
#Override
public void onCloseWindow(WebView window) {
//Toast.makeText(contextPop,"onCloseWindow called",Toast.LENGTH_SHORT).show();
try {
webViewPop.destroy();
} catch (Exception e) {
Log.d("Webview Destroy Error: ", e.getStackTrace().toString());
}
try {
builder.dismiss();
} catch (Exception e) {
Log.d("Builder Dismiss Error: ", e.getStackTrace().toString());
}
}
#Override
public boolean onJsConfirm(WebView view, String url, String message, final JsResult result) {
new AlertDialog.Builder(myApp)
.setMessage(message)
.setPositiveButton(android.R.string.ok,
new DialogInterface.OnClickListener()
{
public void onClick(DialogInterface dialog, int which)
{
result.confirm();
}
})
.setNegativeButton(android.R.string.cancel,
new DialogInterface.OnClickListener()
{
public void onClick(DialogInterface dialog, int which)
{
result.cancel();
}
})
.setCancelable(false)
.create()
.show();
return true;
}
#Override
public boolean onJsAlert(WebView view, final String url, String message,
JsResult result) {
new AlertDialog.Builder(myApp)
.setMessage(message)
.setNeutralButton("OK", new DialogInterface.OnClickListener() {
#Override
public void onClick(DialogInterface arg0, int arg1) {
arg0.dismiss();
}
})
.setCancelable(false)
.show();
result.cancel();
return true;
}
}
}

Open Android app with Webview by pressing deeplink URL from notifications

Background:
* Full Stack developer training (recently finished studies).
* Am not very (putting it mildly) Java savvy.
for the past couple of days I've been trying to make the tapping on a OneSignal notification open the app according to the URL stored in the notification payload.
What did work was:
* If the app is showing on the screen and you press the notification it works fine and opens it accordingly.
It does ALMOST work in the way that if the app is in the background and you press the notification it either:
1. Launches the app but on the main page
OR
2. Doesn't launch the app but when you actively go back to the app it shows the correct content (according to the URL of the notification)
Following is the code:
Thank you!
package app.web.hodaya;
import com.onesignal.OSNotificationOpenResult;
import com.onesignal.OneSignal;
import androidx.appcompat.app.AppCompatActivity;
import android.content.Intent;
import android.os.Build;
import android.os.Bundle;
import android.util.Log;
import android.webkit.JavascriptInterface;
import android.webkit.WebSettings;
import android.webkit.WebView;
import android.webkit.WebViewClient;
import org.json.JSONObject;
import static com.onesignal.OneSignal.sendTag;
import static com.onesignal.OneSignal.sendTags;
public class MainActivity extends AppCompatActivity {
private WebView webView;
#Override
protected void onCreate(Bundle savedInstanceState) {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) {
WebView.setWebContentsDebuggingEnabled(true);
}
CalculateObject calcObject = new CalculateObject();
PassingStringThrough passString = new PassingStringThrough();
ExampleNotificationOpenedHandler notificationOpened = new ExampleNotificationOpenedHandler();
UpdateOneSignalSettingTags sendTag = new UpdateOneSignalSettingTags();
super.onCreate(savedInstanceState);
// OneSignal Initialization
OneSignal.startInit(this)
.inFocusDisplaying(OneSignal.OSInFocusDisplayOption.Notification)
.unsubscribeWhenNotificationsAreDisabled(true)
.setNotificationOpenedHandler(new ExampleNotificationOpenedHandler())
.init();
setContentView(R.layout.activity_main);
webView = findViewById(R.id.webView);
webView.setWebViewClient(new WebViewClient());
webView.loadUrl("https://hodaya-app.firebaseapp.com/");
WebSettings webSettings = webView.getSettings();
webSettings.setJavaScriptEnabled(true);
webView.getSettings().setDomStorageEnabled(true);
webView.addJavascriptInterface(passString, "ob1");
try {
this.getSupportActionBar().hide();
} catch (NullPointerException e) {
}
}
#Override
public void onBackPressed() {
if (webView.canGoBack()) {
webView.goBack();
} else {
super.onBackPressed();
}
}
class PassingStringThrough {
#JavascriptInterface
public void passString(
String m, String m1, String n, String n1, String e, String e1,
String name, String name1, String gender, String gender1) {
sendTag(m, m1);
sendTag(n, n1);
sendTag(e, e1);
sendTag(name, name1);
sendTag(gender, gender1);
/* alternatively*/
// tags.put(m, m1);
// tags.put(n, n1);
// tags.put(e, e1);
// OneSignal.sendTags(tags);
Log.d("settingsPassedCorrectly", "I just got executed!" + m + m1 + n + n1 + e + e1 + name + name1 + gender + gender1);
}
}
class ExampleNotificationOpenedHandler implements OneSignal.NotificationOpenedHandler {
#Override
public void notificationOpened(OSNotificationOpenResult result) {
Log.i("OSNotificationPayload", "result.notification.payload.toJSONObject().toString(): " + result.notification.payload.toJSONObject().toString());
JSONObject data = result.notification.payload.additionalData;
String customKey;
if (data != null) {
customKey = data.optString("tryli", null);
// if (customKey != null)
Log.i("DeepLinkToCustomkey", "customkey set with value: " + customKey);
WebView webView1;
// setContentView(R.layout.activity_main);
webView1 = findViewById(R.id.webView);
webView1.setWebViewClient(new WebViewClient());
webView1.loadUrl(customKey);
// WebView webView = null;
}

Having two webviews in my app one webview not unable to delete conent in webview

I have two webviews in my android app one webview deletes content based on given javascript function and other one is remaining same even I give javascript function by id. The main webview working perfectly and other one not and now i may integrating another webview if my second webview works perfectly.
here is my first webview it's working perfectly
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
webView = (WebView) findViewById(R.id.webView);
webView.setWebViewClient(new myWebClient());
webView.getSettings().setJavaScriptEnabled(true);
webView.loadUrl("url");
webView.getSettings().setDomStorageEnabled(true)
public class myWebClient extends WebViewClient
{
#Override
public void onPageFinished(WebView view, String url) {
super.onPageFinished(view, url);
view.loadUrl("javascript:(function() {document.getElementById('mainHeader').style.display='none';" + "document.getElementById('footerRights').style.display='none';" + "document.getElementById('navTrail').style.display='none';" + "document.getElementById('threeColumns').style.display='none';" + " })()");
}
#Override
public boolean shouldOverrideUrlLoading(WebView view, String url) {
view.loadUrl(url);
return true;
}
#Override
public void onPageStarted(WebView view, String url, Bitmap favicon) {
super.onPageStarted(view, url, favicon);
}
}
#Override
// This method is used to detect back button
public void onBackPressed() {
if (webView.canGoBack()) {
webView.goBack();
} else {
// Let the system handle the back button
super.onBackPressed();
}
}
}
my second webview
public class webview2 extends AppCompatActivity {
private WebView webVIEW;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_webview);
webVIEW = (WebView) findViewById(R.id.webVIEW);
webVIEW.setWebViewClient(new WebViewClient());
webVIEW.getSettings().setJavaScriptEnabled(true);
webVIEW.loadUrl("example url");
webVIEW.getSettings().setJavaScriptEnabled(true);
webVIEW.getSettings().setDomStorageEnabled(true);
getSupportActionBar().setDisplayHomeAsUpEnabled(true);
}
public class webVIEW extends WebViewClient {
public void onPageFinished(WebView view, String url) {
super.onPageFinished(view, url);
view.loadUrl("javascript:(function() { " + "var element = document.getElementById('hplogo');" + "element.parentNode.removeChild(element);" + " })()");
}
#Override
public void onPageStarted(WebView view, String url, Bitmap favicon ) {
super.onPageStarted(view, url, favicon);
}
public boolean shouldOverrideUrlLoading(WebView view, String url) {
view.loadUrl(url);
return true;
}
}
#Override
public void onBackPressed(){
if (webVIEW.canGoBack()) {
webVIEW.goBack();
}else {
super.onBackPressed();
}
}
}
webview2.java
its being remaining same no javascript excution now i need to integrate another webview and it also needs the same as first webview
Thanks in Advance

I have solved my question using kotlin class by this i can inject java script in one or more webviews
class webview2 : AppCompatActivity() {
private lateinit var webVIEW: WebView
#SuppressLint("SetJavaScriptEnabled")
override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
setContentView(R.layout.activity_webview)
webVIEW = findViewById<WebView>(R.id.webVIEW) as WebView
webVIEW.settings.javaScriptEnabled = true
webVIEW.webViewClient = object : WebViewClient() {
override fun onPageFinished(view: WebView, url: String) {
injectJS()
}
}
webVIEW.loadUrl("https://example/login")
}
val progressBar = findViewById<ProgressBar>(R.id.progressBar3)
override fun onBackPressed() {
if (webVIEW.canGoBack()) {
webVIEW.goBack();
} else {
super.onBackPressed()
}
}
private fun injectJS() {
val jsContent: String?
jsContent = try {
val inputStream = assets.open("style.js")
val fileContent = inputStream.bufferedReader().use(BufferedReader::readText)
inputStream.close()
fileContent
} catch (e: Exception) {
null
}
jsContent?.let { webVIEW.loadUrl("javascript:($jsContent)()") }
}
}

How to Load Interstitial Ads from Webview

I am new to android, recently I developed an application which runs on WebView means in my activity I placed a webview doing the gamin activity through html,js pages by loading those to webview.
Here my request is "How to load the Interstitial Ads from the webpage files(html,js) I googled most of the suggestions related to Ionic App but my app is AndroidStudio related.
so please help

Loading an ad from WebView isn't that straightforward but could be done. So let's take the following example:
class MainActivity extends AppCompatActivity {
protected InterstitialAd mInterstitialAd;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
// load interstitial ad
mInterstitialAd = new InterstitialAd(getContext());
mInterstitialAd.setAdUnitId("YOUR_AD_ID");
mInterstitialAd.loadAd(new AdRequest.Builder().build());
WebView browser = findViewById(R.id.webview);
browser.addJavascriptInterface(new InterceptorJavaScript(context), "Interceptor");
WebSettings webSettings = browser.getSettings();
webSettings.setJavaScriptEnabled(true);
webSettings.setDomStorageEnabled(true);
browser.setWebViewClient(new CapturingWebViewClient());
browser.loadUrl("http://website.com");
}
/**
* This class will handle all JS events from the UI back to
* Java code and will trigger the Interstitial ad
*/
private class InterceptorJavaScript {
Context webViewContext;
/**
* Instantiate the interface and set the context
*/
InterceptorJavaScript(Context webView) {
webViewContext = webView;
}
#JavascriptInterface
#SuppressWarnings("unused")
public void startInterstitial() {
// we need to run it on the main UI thread
Handler mHandler = new Handler(Looper.getMainLooper());
mHandler.post(new Runnable() {
#Override
public void run() {
if (MainActivity.mInterstitialAd.isLoaded()) {
MainActivity.mInterstitialAd.show();
}
// preload new ad
BrowserFragment.mInterstitialAd.loadAd(new AdRequest.Builder().build());
}
});
}
}
private class CapturingWebViewClient extends WebViewClient {
/**
* This method will inject the JavaScritp that will trigger
* your Java code and show the interstitial in the main UI thread
*/
#Override
public void onPageFinished(WebView view, String url) {
super.onPageFinished(view, url);
view.loadUrl(
"javascript:Interceptor.startInterstitial();"
);
// Attach JS event to your button so you can call the JS function. I've used jQuery just for simplicity
view.loadUrl(
"javascript:$('#btn').on('click', function(){ Interceptor.startInterstitial(); });"
);
}
}
}

hello this is the code....
import android.os.Bundle; import android.view.Window; import android.view.WindowManager;
import android.support.v7.app.AppCompatActivity;
import android.webkit.WebSettings;
import android.webkit.WebView;
import android.webkit.WebViewClient;
import com.google.android.gms.ads.AdListener;
import com.google.android.gms.ads.AdRequest;
import com.google.android.gms.ads.AdView;
import com.google.android.gms.ads.InterstitialAd;
public class a4 extends AppCompatActivity {
AdView mAdView;
InterstitialAd mInterstitialAd;
WebView WebViewWithCSS;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState); requestWindowFeature(Window.FEATURE_NO_TITLE); getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN, WindowManager.LayoutParams.FLAG_FULLSCREEN);
setContentView(R.layout.activity_a4);
WebViewWithCSS = (WebView)findViewById(R.id.webView);
WebSettings webSetting = WebViewWithCSS.getSettings();
webSetting.setJavaScriptEnabled(true);
WebViewWithCSS.setWebViewClient(new WebViewClient());
WebViewWithCSS.loadUrl("file:///android_asset/4.html");
mAdView = (AdView) findViewById(R.id.adView);
AdRequest adRequest = new AdRequest.Builder()
.build();
mAdView.loadAd(adRequest);
mInterstitialAd = new InterstitialAd(this);
// set the ad unit ID
mInterstitialAd.setAdUnitId(getString(R.string.interstitial_full_screen));
adRequest = new AdRequest.Builder()
.build();
// Load ads into Interstitial Ads
mInterstitialAd.loadAd(adRequest);
mInterstitialAd.setAdListener(new AdListener() {
public void onAdLoaded() {
showInterstitial();
}
});
}
#Override
public void onPause() {
if (mAdView != null) {
mAdView.pause();
}
super.onPause();
}
#Override
public void onResume() {
super.onResume();
if (mAdView != null) {
mAdView.resume();
}
}
#Override
public void onDestroy() {
if (mAdView != null) {
mAdView.destroy();
}
super.onDestroy();
}
private void showInterstitial() {
if (mInterstitialAd.isLoaded()) {
mInterstitialAd.show();
}
}
}

Can I show progress dialog and error message while parsing XML using JavaScript?

I am developing android web application for a blog like website.
For this I am showing HTML page contenting list of categories which when clicked shows articles related to that category.
I am fetching this articles from website's RSS feeds which is in XML format and by using JavaScript I am parsing it to display on HTML page.
This process of parsing XML takes lot of time to load a page.During this period I am getting blank screen.I have implemented progress dialog which works fine when page is loading for the first time but when XML is getting parsed by JavaScript it does not appear.
Here is how I implemented Process dialog.
Activity.java:
#Override
public void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
this.getWindow().requestFeature(Window.FEATURE_PROGRESS);
setContentView(R.layout.main);
getWindow().setFeatureInt(Window.FEATURE_PROGRESS,
Window.PROGRESS_VISIBILITY_ON);
webview = (WebView) findViewById(R.id.webview);
webview.getSettings().setJavaScriptEnabled(true);
webview.setBackgroundColor(0);
final ProgressDialog progressDialog = new ProgressDialog(activity);
progressDialog.setProgressStyle(ProgressDialog.STYLE_HORIZONTAL);
progressDialog.setMessage("Loading...please wait");
progressDialog.setCancelable(true);
webview.setWebViewClient(new WebViewClient()
{
#Override
public boolean shouldOverrideUrlLoading(WebView view, String url)
{
view.loadUrl(url);
return true;
}
});
webview.loadUrl("file:///android_asset/HomePage.html");
// WebChromeClient give progress etc info
webview.setWebChromeClient(new WebChromeClient()
{
public void onProgressChanged(WebView view, int progress)
{
progressDialog.show();
progressDialog.setProgress(0);
activity.setProgress(progress * 1000);
progressDialog.incrementProgressBy(progress);
if (progress == 100 && progressDialog.isShowing())
progressDialog.dismiss();
}
});
}
How can I show progress dialog while XML is being parsed by JavaScript?
Also I want to show an error message if no internet connectivity available for same thing is their any way to do so?
I have used call function as "tel:phone number" which was working but after I added de
public boolean shouldOverrideUrlLoading it is not working? what's i done wrong?

for your questions You can use following code in your activity.java file
package com.package name;
import android.app.Activity;
import android.app.AlertDialog;
import android.app.ProgressDialog;
import android.content.DialogInterface;
import android.content.Intent;
import android.net.Uri;
import android.os.Bundle;
import android.view.Window;
import android.webkit.WebChromeClient;
import android.webkit.WebView;
import android.webkit.WebViewClient;
import android.widget.TextView;
import android.widget.Toast;
public class Myactivity extends Activity {
TextView myLabel;
WebView wv;
final Activity activity=this;
/** Called when the activity is first created. */
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
this.getWindow().requestFeature(Window.FEATURE_PROGRESS);
setContentView(R.layout.main);
getWindow().setFeatureInt(Window.FEATURE_PROGRESS,Window.PROGRESS_VISIBILITY_ON);
wv=(WebView)findViewById(R.id.webview);
wv.getSettings().setJavaScriptEnabled(true);
wv.setBackgroundColor(0);
final ProgressDialog progressDialog = new ProgressDialog(activity);
progressDialog.setProgressStyle(ProgressDialog.STYLE_HORIZONTAL);
progressDialog.setMessage("Loading...please wait");
progressDialog.setCancelable(true);
wv.setWebViewClient(new WebViewClient()
{
#Override
public boolean shouldOverrideUrlLoading(WebView view, String url)
{
if (url.startsWith("tel:")) {
Intent intent = new Intent(Intent.ACTION_DIAL,
Uri.parse(url));
startActivity(intent);
return true;
}else{
view.loadUrl(url);
return true;
}
}
});
wv.loadUrl("file:///android_asset/page.html");
// WebChromeClient give progress etc info
wv.setWebChromeClient(new WebChromeClient()
{
public void onProgressChanged(WebView view, int progress)
{
progressDialog.show();
progressDialog.setProgress(0);
activity.setProgress(progress * 1000);
progressDialog.incrementProgressBy(progress);
if (progress == 100 && progressDialog.isShowing())
progressDialog.dismiss();
}
});
if (AppStatus.getInstance(this).isOnline(this)) {
Toast t = Toast.makeText(this,"Welcome !!!!",8000);
t.show();
} else {
AlertDialog alertDialog = new AlertDialog.Builder(
CafeNashikActivity.this).create();
// Setting Dialog Title
alertDialog.setTitle("No Internet");
// Setting Dialog Message
alertDialog.setMessage("Internet Connection not available!");
// Setting Icon to Dialog
//alertDialog.setIcon(R.drawable.tick);
// Setting OK Button
alertDialog.setButton("Exit", new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
MyActivity.this.finish();
}
});
// Showing Alert Message
alertDialog.show();
}
}
}
Hope this will help you.