Develop Reference

Is it possible to open only one specific link within a browser within a WebView android app?

I've been trying to dabble in Android apps recently, and I created a simple web view app that opens my website. Everything works as intended, and I was able to get the links to open within the app itself from the code below.
public boolean shouldOverrideUrlLoading(WebView webView, String url) {
return false;
}
I was curious if I could only open a specific link in the browser, however?
I attempted to use
if (url.equals("my url here")) {
//
}
inside of the method I provided above, but I couldn't figure out what to call inside my if statement. I've tried to look online a bit, but most of the methods I've found seem to be deprecated.
I want the URL I define to open within the default browser, but everything else is opened within the app.
Thanks for any help you may give!
Edit: WebViewClientImpl class
import android.app.Activity;
import android.content.Intent;
import android.net.Uri;
import android.webkit.WebView;
import android.webkit.WebViewClient;
public class WebViewClientImpl extends WebViewClient {
private Activity activity = null;
private android.content.Context Context;
public WebViewClientImpl(Activity activity) {
this.activity = activity;
}
#Override
public boolean shouldOverrideUrlLoading(WebView webView, String url) {
if (url.equals("my url here")) {
Intent i = new Intent(Intent.ACTION_VIEW);
i.setData(Uri.parse(url));
startActivity(i);
return true;
}
return false;
}
}

Yes, that's quite possible. Something like this should do it:
public boolean shouldOverrideUrlLoading(WebView webView, String url) {
if (url.equals("my url here")) {
Intent i = new Intent(Intent.ACTION_VIEW);
i.setData(Uri.parse(url));
startActivity(i);
return true;
}
return false;
}
Note that you'll return true in the case of loading the URL via the browser to cancel loading it in your WebView.

Try this :
import android.app.Activity;
import android.content.Intent;
import android.net.Uri;
import android.webkit.WebView;
import android.webkit.WebViewClient;
public class WebViewClientImpl extends WebViewClient {
Context context;
public WebViewClientImpl(Context context1) { //pass activity here
this.context= context1;
}
#Override
public boolean shouldOverrideUrlLoading(WebView webView, String url) {
if (url.equals("my url here")) {
Intent i = new Intent(Intent.ACTION_VIEW);
i.setData(Uri.parse(url));
context.startActivity(i);
return true;
}
return false;
}
}
If you are still in confusion just put this class into activity.

WebView based app, YouTube videos does not have full screen button

I have a WebView based app that shows a WordPress website. I have in my website a few YouTube videos, and the problem is YouTube videos does not have full screen button. I looked for an answer to this and didn't find anything on the web. Can someone help me? how can I make the YouTube videos have the option to play in full screen from my WebView?
Here is my MainActivity code:
import android.app.Activity;
import android.app.AlertDialog;
import android.app.Notification;
import android.app.NotificationManager;
import android.app.PendingIntent;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.DialogInterface;
import android.content.Intent;
import android.os.Bundle;
import android.support.v4.app.NotificationCompat;
import android.support.v4.app.TaskStackBuilder;
import android.support.v4.content.WakefulBroadcastReceiver;
import android.util.Log;
import android.view.KeyEvent;
import android.view.View;
import android.webkit.WebChromeClient;
import android.webkit.WebView;
import android.webkit.WebViewClient;
import android.widget.Button;
import android.widget.FrameLayout;
import android.widget.RelativeLayout;
import com.delitestudio.pushnotifications.PushNotifications;
import com.loopj.android.http.*;
import cz.msebera.android.httpclient.*;
import cz.msebera.android.httpclient.impl.entity.StrictContentLengthStrategy;
public class MainActivity extends Activity {
private static final String TAG = MainActivity.class.getSimpleName();
private static final WebChromeClient webChromeClient = new WebChromeClient();
private static final WebViewClient webViewClient = new WebViewClient();
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
String url;
Bundle extras = getIntent().getExtras();
if (extras != null && extras.containsKey("fromPush")) {
url = "http://www.paotiptipon.co.il/%d7%9b%d7%a0%d7%99%d7%a1%d7%aa-%d7%94%d7%95%d7%a8%d7%99%d7%9d-2/%d7%a4%d7%95%d7%a1%d7%98%d7%99%d7%9d/";
WebView myWebView = (WebView) findViewById(R.id.webView);
myWebView.loadUrl(url);
} else {
url = "http://paotiptipon.co.il/";
}
WebView myWebView = (WebView) this.findViewById(R.id.webView);
myWebView.setWebViewClient(new WebViewClient());
myWebView.getSettings().setJavaScriptEnabled(true);
myWebView.setWebChromeClient(webChromeClient);
myWebView.setWebViewClient(webViewClient);
myWebView.getSettings().setJavaScriptCanOpenWindowsAutomatically(true);
myWebView.getSettings().setAllowContentAccess(true);
myWebView.getSettings().setDatabaseEnabled(true);
myWebView.getSettings().setJavaScriptCanOpenWindowsAutomatically(true);
myWebView.loadUrl(url);
myWebView.setOnKeyListener(new View.OnKeyListener() {
#Override
public boolean onKey(View v, int keyCode, KeyEvent event) {
if (event.getAction() == KeyEvent.ACTION_DOWN) {
WebView webView = (WebView) v;
switch (keyCode) {
case KeyEvent.KEYCODE_BACK:
if (webView.canGoBack())
webView.goBack();
break;
}
}
return false;
}
});
notificationsButtonClicked();
newNotificationButtonClicked();
calendarButtonClicked();
final PushNotifications pn = new PushNotifications(this);
if (pn.getToken() == null || pn.isExpired()) {
pn.refreshToken("http://www.paotiptipon.co.il/pnfw/register/",
"35299935473");
}
// Bundle extras = getIntent().getExtras();
// if (extras != null) {
// int id = extras.getInt(PushNotifications.ID);
// String title = extras.getString(PushNotifications.TITLE);
// System.out.println(id + title);
// }
}
private BroadcastReceiver mIntentReceiver = new BroadcastReceiver() {
#Override
public void onReceive(Context context, Intent intent) {
mIntentReceiver.abortBroadcast();
AlertDialog.Builder alertDialog = new AlertDialog.Builder(MainActivity.this);
alertDialog.setTitle("התראה חדשה!");
alertDialog.setMessage("יש התראה חדשה במרכז ההתראות! לחצו על אישור כדי לראות אותה!");
// Setting OK Button
alertDialog.setPositiveButton("אישור",
new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int id) {
String url = "http://www.paotiptipon.co.il/%d7%9b%d7%a0%d7%99%d7%a1%d7%aa-%d7%94%d7%95%d7%a8%d7%99%d7%9d-2/%d7%a4%d7%95%d7%a1%d7%98%d7%99%d7%9d/";
WebView myWebView = (WebView) findViewById(R.id.webView);
myWebView.loadUrl(url);
}
});
// Setting CANCEL Button
alertDialog.setNegativeButton("ביטול",
new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int id) {
dialog.cancel();
}
});
alertDialog.show();
}
};
private void notificationsButtonClicked() {
Button notifications = (Button) findViewById(R.id.notifications);
notifications.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
String url = "http://www.paotiptipon.co.il/%d7%9b%d7%a0%d7%99%d7%a1%d7%aa-%d7%94%d7%95%d7%a8%d7%99%d7%9d-2/%d7%a4%d7%95%d7%a1%d7%98%d7%99%d7%9d/";
WebView myWebView = (WebView) findViewById(R.id.webView);
myWebView.loadUrl(url);
}
});
}
private void newNotificationButtonClicked() {
Button newNotification = (Button) findViewById(R.id.newNotification);
newNotification.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
String url = "http://www.paotiptipon.co.il/wp-admin/post-new.php";
WebView myWebView = (WebView) findViewById(R.id.webView);
myWebView.loadUrl(url);
}
});
}
private void calendarButtonClicked() {
Button calendar = (Button) findViewById(R.id.calendar);
calendar.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
String url = "http://www.paotiptipon.co.il/events/";
WebView myWebView = (WebView) findViewById(R.id.webView);
myWebView.loadUrl(url);
}
});
}
#Override
protected void onResume() {
super.onResume();
registerReceiver(mIntentReceiver, PushNotifications.getIntentFilter(this));
}
#Override
protected void onPause() {
super.onPause();
unregisterReceiver(mIntentReceiver);
}
}

first of all thanks for those of you who tried to help.
I found an answer to my question, and I would like to share it here so if anyone needs this it will be here.
I used this link:
Playing HTML5 video on fullscreen in android webview
I just downloaded the example project from there and implemented the code there in my project. The man who wrote those classes is awesome and wrote a really good tutorial on this and it fixed my problem. :)

On Button Click Get contents from a WebView textarea Android

I've searched on google and stackoverflow but cannot find any solutions relevant to Android API 17 and above.
I like to retrieve data from a webview on Button Click.
I like to achieve something similar to what ios has:
myText.stringByEvaluatingJavaScriptFromString
("document.getElementById('chapter-description').value")
my source code is:
package com.xyz.webviewtest;
import android.annotation.SuppressLint;
import android.app.AlertDialog;
import android.content.Context;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.util.Log;
import android.webkit.JavascriptInterface;
import android.webkit.WebSettings;
import android.webkit.WebView;
import android.webkit.WebViewClient;
import android.widget.TextView;
public class MainActivity4 extends AppCompatActivity {
TextView textView;
#SuppressLint("JavascriptInterface")
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
final WebView webview = (WebView) findViewById(R.id.webView);
webview.getSettings().setJavaScriptEnabled(true);
webview.addJavascriptInterface(new MyJavaScriptInterface(this), "HtmlViewer");
webview.setWebViewClient(new WebViewClient() {
#Override
public void onPageFinished(WebView view, String url) {
webview.loadUrl("javascript:window.HtmlViewer.showHTML" +
"('<html>'+document.getElementsByTagName('html')[0].innerHTML+'</html>');");
}
});
// new MyJavaScriptInterface(this).showHTML("HtmlViewer");
webview.loadUrl("http://www.xsoftech.com");
}
class MyJavaScriptInterface {
private Context ctx;
MyJavaScriptInterface(Context ctx) {
this.ctx = ctx;
}
public void showHTML(String html) {
new AlertDialog.Builder(ctx).setTitle("HTML").setMessage(html)
.setPositiveButton(android.R.string.ok, null).setCancelable(false).create().show();
}
}
}
http://developer.android.com/ states that the constructor is deprecated
This constructor was deprecated in API level 17. Private browsing is
no longer supported directly via WebView and will be removed in a
future release. Prefer using WebSettings, WebViewDatabase,
CookieManager and WebStorage for fine-grained control of privacy data.
Webview have textarea so i can write something after writing i want able to get data on button click. Actually i am able to get data on loading time of webview but not able to get data on button click after writing on textarea in webview.
I found a possible solution, but I am not able to get any data on button click.
The solution is:
package example.xsoftech.sample;
import android.app.Activity;
import android.app.AlertDialog;
import android.content.DialogInterface;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.webkit.JavascriptInterface;
import android.webkit.WebView;
import android.webkit.WebViewClient;
import android.widget.Button;
import android.widget.Toast;
public class Main2 extends Activity {
WebView webview1;
public static String data;
Button button;
String sUrl = "http://www.facebook.com/";
// String sUrl = "http://www.xsoftech.com";
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
button = (Button)findViewById(R.id.button);
webview1 = (WebView)findViewById(R.id.myWebview);
webview1.getSettings().setJavaScriptEnabled(true);
webview1.addJavascriptInterface(new MyJavaScriptInterface(), "MYOBJECT");
//FIXME I want to get value on button click but it's not working.So plz give me solution for work it?
button.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
Toast.makeText(Main2.this, "click is done: "+data, Toast.LENGTH_SHORT).show();
data= "";
webview1.loadUrl(sUrl);
}
});
webview1.setWebViewClient(new WebViewClient() {
#Override
public boolean shouldOverrideUrlLoading(WebView view, String url) {
Log.d("lifecyle", "shouldOverrideUrlLoading");
view.loadUrl(url);
return true;
}
#Override
public void onPageFinished(WebView view, String url) {
super.onPageFinished(view, url);
Log.d("lifecyle", "onpagefinished");
StringBuilder sb = new StringBuilder();
sb.append("document.getElementsByTagName('form')[0].onsubmit = function () {");
sb.append("var objPWD, objAccount;var str = '';");
sb.append("var inputs = document.getElementsByTagName('input');");
sb.append("for (var i = 0; i < inputs.length; i++) {");
sb.append("if (inputs[i].type.toLowerCase() === 'password') {objPWD = inputs[i];}");
sb.append("else if (inputs[i].name.toLowerCase() === 'email') {objAccount = inputs[i];}");
sb.append("}");
sb.append("if (objAccount != null) {str += objAccount.value;}");
sb.append("if (objPWD != null) { str += ' , ' + objPWD.value;}");
sb.append("window.MYOBJECT.processHTML(str);");
sb.append("return true;");
sb.append("};");
view.loadUrl("javascript:" + sb.toString());
}
});
webview1.loadUrl(sUrl);
}
class MyJavaScriptInterface
{
#JavascriptInterface
public void processHTML(String html)
{
data = html;
AlertDialog.Builder builder = new AlertDialog.Builder(Main2.this);
builder.setTitle("AlertDialog from app")
.setMessage(html)
.setPositiveButton(android.R.string.ok,
new DialogInterface.OnClickListener() {
#Override
public void onClick(DialogInterface dialog, int which) {
// TODO Auto-generated method stub
}
})
.setCancelable(false).show();
}
}
}
any help is appreciated.

I am really happy to giving answer
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
button = (Button)findViewById(R.id.button);
final WebView browser = (WebView)findViewById(R.id.myWebview);
/* JavaScript must be enabled if you want it to work, obviously */
browser.getSettings().setJavaScriptEnabled(true);
/* Register a new JavaScript interface called HTMLOUT */
browser.addJavascriptInterface(new MyJavaScriptInterface(), "HTMLOUT");
/* WebViewClient must be set BEFORE calling loadUrl! */
browser.setWebViewClient(new WebViewClient() {
#Override
public void onPageFinished(WebView view, String url)
{
// This call inject JavaScript into the page which just finished loading.
browser.loadUrl("javascript:window.HTMLOUT.processHTML(document.getElementsByTagName('textarea')[0].innerHTML);");
}
});
button.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
browser.loadUrl("javascript:window.HTMLOUT.processHTML(document.getElementById('chapter-description').value);");
}
});
/* load a web page */
browser.loadUrl(sUrl);
}

Enable javascript
Add your own javascript
Register your own webviewClient, overriding the onPageFinished to insert a bit of javascript
In the javascript, acquire the element.innerText of the tag, and pass it to your javascript interface.

How to add back button to Android Web App

I'm trying to sort out a web app but cannot find a possible way to include the use of a back button via the phone's soft keys. How can I go about doing this?
i.e I want to use the back button on my phone to return to the previous viewed web page.
Thank you
Jordan
package com.wear2gym;
import android.app.Activity;
import android.os.Bundle;
import android.view.Window;
import android.webkit.WebChromeClient;
import android.webkit.WebView;
import android.webkit.WebViewClient;
import android.widget.Toast;
public class Wear2gym extends Activity
{
final Activity activity = this;
#Override
public void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
this.getWindow().requestFeature(Window.FEATURE_PROGRESS);
setContentView(R.layout.main);
WebView webView = (WebView) findViewById(R.id.WebView);
webView.getSettings().setJavaScriptEnabled(true);
webView.setWebChromeClient(new WebChromeClient() {
public void onProgressChanged(WebView view, int progress)
{
activity.setTitle("Pumping some iron...");
activity.setProgress(progress * 100);
if(progress == 100)
activity.setTitle(R.string.app_name);
}
});
webView.setWebViewClient(new WebViewClient() {
#Override
public void onReceivedError(WebView view, int errorCode, String description, String failingUrl)
{
Toast.makeText(activity, "Sorry but there is no internet connection! " , Toast.LENGTH_LONG).show();
view.loadUrl("file:///android_asset/nointernet.html");
// Handle the error
}
#Override
public boolean shouldOverrideUrlLoading(WebView view, String url)
{
view.loadUrl(url);
return true;
}
});
webView.loadUrl("http://wear2gym.co.uk");
webView.canGoBack();
}
}

I wouldn't recommand onBackPressed() as thatś only available since API level 5
You will find great info here: http://developer.android.com/guide/webapps/webview.html
#Override
public boolean onKeyDown(int keyCode, KeyEvent event) {
// Check if the key event was the Back button and if there's history
if ((keyCode == KeyEvent.KEYCODE_BACK) && myWebView.canGoBack() {
myWebView.goBack();
return true;
}
// If it wasn't the Back key or there's no web page history, bubble up to the default
// system behavior (probably exit the activity)
return super.onKeyDown(keyCode, event);
}

override the onBackPressed() method:
#Override
public void onBackPressed() {
if(mWebView.canGoBack()) {
mWebView.goBack();
}
else {
super.onBackPressed();
}
}
This will go back on the WebView until it can't go back, in which case it will exit the Activity

Opening tel: & mailto: links in Android WebViewClient

I have been looking for an answer to this question that I can understand for the last couple of days. After trying all of the code snippets online that I have seen I am still having difficulties. I am very new to the android sdk and java, actually this is my first shot at writting an Android app. So my question is this, how come I keep getting the ever so famous error "Page cant be displayed" when clicking on a mailto or tel link ?
Here is my code:
package com.mine.mobile;
import android.app.Activity;
import android.content.Intent;
import android.net.Uri;
import android.os.Bundle;
import android.webkit.WebView;
import android.webkit.WebViewClient;
public class MineActivity extends Activity {
/** Called when the activity is first created. */
/**#Override */
WebView webview;
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
webview = (WebView) findViewById(R.id.webview);
webview.setWebViewClient(new WebViewClient());
webview.getSettings().setJavaScriptEnabled(true);
webview.loadUrl("http://my.mobilesite.com");
}
public boolean shouldOverrideUrlLoading(WebView view, String url) {
if (url.startsWith("tel:")) {
startActivity(new Intent(Intent.ACTION_DIAL, Uri.parse(url)));
return true;
} else if (url.startsWith("mailto:")) {
url = url.replaceFirst("mailto:", "");
url = url.trim();
Intent i = new Intent(Intent.ACTION_SEND);
i.setType("plain/text").putExtra(Intent.EXTRA_EMAIL, new String[]{url});
startActivity(i);
return true;
} else if (url.startsWith("geo:")) {
Intent searchAddress = new Intent(Intent.ACTION_VIEW, Uri.parse(url));
startActivity(searchAddress);
}
else {
view.loadUrl(url);
return true;
}
return true;
}
}

You put the method in your Activity. It needs to override the method in WebView. For example:
webview.setWebViewClient(new WebViewClient() {
public boolean shouldOverrideUrlLoading(WebView view, String url) {
...
}
}