We Keep Coding

Web view in Fragment

I'm new to Android Studio and learning and help me to short out my issues. I'm unable to add onBackpress method in my webview fragment:
public class HomeFragment extends Fragment {
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View myView = inflater.inflate ( R.layout.fragment_home, container, false);
WebView myWebView = myView.findViewById ( R.id.home_webView );
myWebView.loadUrl ( "https://yahoo.com" );
WebSettings webSettings = myWebView.getSettings ();
webSettings.setJavaScriptEnabled ( true );
myWebView.setWebViewClient(new WebViewClient());
// Inflate the layout for this fragment
return myView;
}
#Override
public void onBackPressed() {
if (webView.canGoBack()) {
webView.goBack();
} else super.onBackPressed ();
}
}
}

my paystack payment gateway popup is not showing/poping up

This code is not working and my paystack payment gateway is not showing, though it displays the spinner but will not show the form for card input.
Please I need a complete code that will help me get my job done:
webView.setWebChromeClient(new WebChromeClient() {
#Override
public boolean onCreateWindow(WebView view, boolean isDialog,
boolean isUserGesture, Message resultMsg) {
WebView newWebView = new WebView(WebpageActivity.this);
newWebView.getSettings().setJavaScriptEnabled(true);
newWebView.getSettings().setSupportZoom(true);
newWebView.getSettings().setBuiltInZoomControls(true);
newWebView.getSettings().setPluginState(PluginState.ON);
newWebView.getSettings().setSupportMultipleWindows(true);
view.addView(newWebView);
WebView.WebViewTransport transport = (WebView.WebViewTransport) resultMsg.obj;
transport.setWebView(newWebView);
resultMsg.sendToTarget();
newWebView.setWebViewClient(new WebViewClient() {
#Override
public boolean shouldOverrideUrlLoading(WebView view, String url) {
view.loadUrl(url);
return true;
}
});
return true;
}
}
});

Well, this code should work when pasted on your MainActivity file of your android webview project.
import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.view.KeyEvent;
import android.webkit.WebSettings;
import android.webkit.WebView;
import android.net.Uri;
import android.webkit.WebViewClient;
import android.webkit.WebSettings.PluginState;
public class MainActivity extends Activity {
private WebView webView = null;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
this.webView = (WebView) findViewById(R.id.webView);
WebSettings webSettings = webView.getSettings();
webView.setInitialScale(1);
webSettings.setJavaScriptEnabled(true);
webSettings.setLoadWithOverviewMode(true);
webSettings.setUseWideViewPort(true);
webSettings.setAllowFileAccess(true);
webSettings.setAllowContentAccess(true);
webSettings.setSupportZoom(true);
webSettings.setBuiltInZoomControls(true);
webSettings.setPluginState(PluginState.ON);
webSettings.setSupportMultipleWindows(true);
webSettings.setJavaScriptCanOpenWindowsAutomatically(true);
WebViewClientImpl webViewClient = new WebViewClientImpl(this);
webView.setWebViewClient(webViewClient);
webView.loadUrl("https://www.your_url.com/");
}
#Override
public boolean onKeyDown(int keyCode, KeyEvent event) {
if ((keyCode == KeyEvent.KEYCODE_BACK) && this.webView.canGoBack()) {
this.webView.goBack();
return true;
}
return super.onKeyDown(keyCode, event);
}
public class WebViewClientImpl extends WebViewClient {
private Activity activity = null;
public WebViewClientImpl(Activity activity) {
this.activity = activity;
}
#Override
public boolean shouldOverrideUrlLoading(WebView webView, String url) {
if(url.indexOf("your_url") > -1 ) return false;
Intent intent = new Intent(Intent.ACTION_VIEW, Uri.parse(url));
activity.startActivity(intent);
return true;
}
}
}
Now, after pasting the above code you need to use the PHP paystack integration this time and not the javascript paystack integration initialization and callback functions.
At this point you only need to worry about your sessions.
Tested And Confirmed.

android studio tablayout icon

Hello guys im trying to do Tablayout in my project on android studio by following this https://github.com/codepath/android_guides/wiki/Google-Play-Style-Tabs-using-TabLayout (doing it up to the "Add Icons to TabLayout") Recently, but somehow my icon wont appear, already added style but still nothing appear, anyone know why?
Thanks
*note : i also try to create new project and copy the code exactly but the result is the same
on activity :
public class SlidingTabsActivity extends AppCompatActivity {
TabLayout tabLayout;
ViewPager viewPager;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.sliding_tabs);
viewPager = (ViewPager) findViewById(R.id.viewPager);
viewPager.setAdapter(new CustomAdapter(getSupportFragmentManager(), getApplicationContext()));
tabLayout = (TabLayout) findViewById(R.id.tabLayout);
tabLayout.setupWithViewPager(viewPager);
//set icon to tablayout
tabLayout.getTabAt(0).setIcon(R.drawable.clock);
tabLayout.getTabAt(1).setIcon(R.drawable.clock);
tabLayout.setOnTabSelectedListener(new TabLayout.OnTabSelectedListener() {
#Override
public void onTabSelected(TabLayout.Tab tab) {
viewPager.setCurrentItem(tab.getPosition());
}
#Override
public void onTabUnselected(TabLayout.Tab tab) {
viewPager.setCurrentItem(tab.getPosition());
}
#Override
public void onTabReselected(TabLayout.Tab tab) {
viewPager.setCurrentItem(tab.getPosition());
}
});
}
private class CustomAdapter extends FragmentPagerAdapter {
private String viewfragment [] = {"slidingtab1","slidingtab2"};
private Context Mycontext;
public CustomAdapter(FragmentManager supportFragmentManager, Context applicationContext) {
super(supportFragmentManager);
this.Mycontext = applicationContext;
}
#Override
public Fragment getItem(int position) {
switch (position){
case 0:
return new SlidingTab1_Activity();
case 1:
return new SlidingTab2_Activity();
default:
return null;
}
}
#Override
public int getCount() {
return viewfragment.length;
}
}
}
On The xml :
<android.support.design.widget.TabLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="#+id/tabLayout"
android:background="#cdc36e"
app:tabMode="fixed"
app:tabGravity="fill"
style="#style/MyCustomTabLayout"
android:layout_alignParentBottom="true"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true" />
Style
<style name="MyCustomTabLayout" parent="Widget.Design.TabLayout">
<item name="tabTextAppearance">#style/MyCustomTextAppearance</item>
</style>
<style name="MyCustomTextAppearance" parent="TextAppearance.Design.Tab">
<item name="textAllCaps">false</item>
</style>

Want to pass the cookies to the webview to load a webpage

I had Successful login to a website using jsoup and I obtained cookies from Jsoup cookies function in Map but I am struck at something.After successful login I Want to open a webpage of the website in the webview but the webpage redirects to the login page because cookies are not successfully passed to the webview and I don't know why. The page wants cookies of successful login to load that page
Here is the login page url.
http://111.68.99.8/StudentProfile/
and page I want to load after Successful Login
http://111.68.99.8/StudentProfile/PersonalInfo.aspx
Here is the MainActivity.java
package com.example.ebad.bu;
import android.app.ProgressDialog;
import android.content.Intent;
import android.os.AsyncTask;
import android.support.v7.app.ActionBarActivity;
import android.os.Bundle;
import android.view.View;
import android.webkit.WebView;
import android.widget.Button;
import android.widget.TextView;
import org.jsoup.Connection;
import org.jsoup.Jsoup;
import org.jsoup.nodes.Document;
import java.io.IOException;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.Map;
public class MainActivity extends ActionBarActivity {
String url = "http://111.68.99.8/StudentProfile/";
Map<String, String> logingcookies;
HashMap<String,String> hashMap;
ProgressDialog progressDialog,progressDialoge;
Button login, personal;
TextView Enrollement, password, E;
String enrol = "";
String pass = "";
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
login = (Button) findViewById(R.id.login_button);
personal = (Button) findViewById(R.id.pers);
login.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
Enrollement = (TextView) findViewById(R.id.Enrollment);
enrol = Enrollement.getText().toString();
password = (TextView) findViewById(R.id.password);
pass = password.getText().toString();
new Title().execute();
}
});
}
private class Title extends AsyncTask<Void, Void, Void> {
String title;
String father;
#Override
protected void onPreExecute() {
super.onPreExecute();
progressDialog = new ProgressDialog(MainActivity.this);
progressDialog.setTitle("Title");
progressDialog.setMessage("Loading");
progressDialog.setIndeterminate(false);
progressDialog.show();
}
#Override
protected Void doInBackground(Void... params) {
try {
Connection.Response loginForm = Jsoup.connect(url).method(Connection.Method.GET).timeout(1000).execute();
Document doc = loginForm.parse();
String viewstate = doc.select("input[name=__VIEWSTATE]").attr("value");
String stategenerator = doc.select("input[name=__VIEWSTATEGENERATOR]").attr("value");
String Eventvalidation = doc.select("input[name=__EVENTVALIDATION]").attr("value");
doc = Jsoup.connect(url)
.data("__LASTFOCUS", "")
.data("__EVENTTARGET", "")
.data("__EVENTARGUMENT", "")
.data("__VIEWSTATE", viewstate)
.data("__VIEWSTATEGENERATOR", stategenerator)
.data("__EVENTVALIDATION", Eventvalidation)
.data("ctl00$Body$ENROLLMENTTextBox$tb", enrol)
.data("ctl00$Body$ENROLLMENTTextBox$cv_vce_ClientState", "")
.data("ctl00$Body$PasswordTextBox$tb", pass)
.data("ctl00$Body$PasswordTextBox$cv_vce_ClientState", "")
.data("ctl00$Body$LoginButton", "Login")
.cookies(loginForm.cookies())
.post();
logingcookies = loginForm.cookies();
title = doc.select("div[id=ctl00_Accounts]").html();
} catch (IOException e) {
e.printStackTrace();
}
return null;
}
#Override
protected void onPostExecute(Void aVoid) {
/*Intent showadditionmenu = new Intent(MainActivity.this,Per.class);
//showadditionmenu.putStringArrayListExtra("logingcookies", (ArrayList<String>) logingcookies);
showadditionmenu.putExtra("logingcookies", String.valueOf(logingcookies));
MainActivity.this.startActivity(showadditionmenu);*/
/* Intent i = new Intent(MainActivity.this,Per.class);
i.putExtra("hashMap",hashMap );
startActivity(i);
*/
hashMap = new HashMap<String,String>(logingcookies);
Intent i = new Intent(MainActivity.this,wee.class);
i.putExtra("hashMap",hashMap );
startActivity(i);
/* E = (TextView) findViewById(R.id.message);
E.setText(title);
progressDialog.dismiss();*/
}
}
}
I have passed the saved cookie to the activity that load the webpage in webivew.. Here is the other activity;
Wee.java
package com.example.ebad.bu;
import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.webkit.WebView;
import android.webkit.WebViewClient;
import java.util.HashMap;
import java.util.Map;
/**
* Created by Ebad on 11/8/2015.
*/
public class wee extends Activity {
String url= "http://111.68.99.8/StudentProfile/PersonalInfo.aspx";
HashMap<String ,String> hashMap;
Map<String,String> map;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.layout);
Intent intent = getIntent();
hashMap = (HashMap<String,String>) intent.getSerializableExtra("hashMap");
WebView webView = (WebView) findViewById(R.id.webviewe);
webView.setWebViewClient(new WebViewClient());
webView.loadUrl(url,hashMap);
}
}
Is there any way that I can view that webpage without logging in again to the webview?

Haven't tested it, but using CookieManager ahould work.
Usage should be something like this:
CookieSyncManager.createInstance(this);
CookieManager cookieManager = CookieManager.getInstance();
cookieManager.removeAllCookie(); //optional
cookieManager.setAcceptCookie(true);
Then loop over your cookies using the setCookie method.
Note: If useing lollipop and up you should also use setAcceptThirdPartyCookies.
Good luck.

Uncaught ReferenceError: myFunction is not defined at null:1 Android exception in webview

I am calling javascript function from an activity but I am getting Uncaught ReferenceError: myFunction is not defined at null:1 error. Here is my files
MainActivity.java
package com.example.androidexample;
import android.os.Bundle;
import android.app.Activity;
import android.content.Context;
import android.view.Menu;
import android.webkit.WebChromeClient;
import android.webkit.WebSettings;
import android.webkit.WebView;
import android.webkit.WebViewClient;
import android.widget.Toast;
public class MainActivity extends Activity {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
WebView webview = (WebView)this.findViewById(R.id.webView1);
WebSettings webSettings = webview.getSettings();
// Enable Javascript for interaction
webSettings.setJavaScriptEnabled(true);
// Make the zoom controls visible
webSettings.setBuiltInZoomControls(true);
// Allow for touching selecting/deselecting data series
webview.requestFocusFromTouch();
// Set the client
webview.setWebViewClient(new WebViewClient());
webview.setWebChromeClient(new WebChromeClient());
//webview.loadUrl("file:///android_asset/test.html");
/*String str = "<books>" +
"<book title=\"A Tale of Two Cities\"/>" +
"<book title=\"1984\"/>" +
"</books>";*/
webview.loadUrl("file:///android_asset/test.html");
webview.loadUrl("javascript:myFunction()");
//webview.loadUrl("javascript:myFunction("+str+")");
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.main, menu);
return true;
}
}
test.html
<html>
<body>
<script type="text/javascript" src="marknote.js"></script>
<script type="text/javascript">
function myFunction()
{
var str = '<books><book></book></books>';
var parser = new marknote.Parser();
var doc = parser.parse(str);
var bookEls = doc.getRootElement().getChildElements();
for (var i=0; i<bookEls.length; i++) {
var bookEl = bookEls[i];
alert("Element name is " + bookEl.getName());
}
}
</script>
</body>
</html>
I have seen this error occurred when I am using webview.loadUrl("javascript:myFunction()");. I want to pass a xml string from java and parse it into javascript. Please help me to find a solution.

You should execute the javascript when the page is loaded
webview.setWebViewClient(new WebViewClient(){
public void onPageFinished(WebView view, String url){
webview.loadUrl("javascript:myFunction()");
}
});
The code will be executed and will find your javascript function. The way you are doing now does not wait.

This one worked just need to change parameter set up sequence
package com.example.androidexample;
import android.os.Bundle;
import android.app.Activity;
import android.content.Context;
import android.view.Menu;
import android.webkit.WebChromeClient;
import android.webkit.WebSettings;
import android.webkit.WebView;
import android.webkit.WebViewClient;
import android.widget.Toast;
public class MainActivity extends Activity {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
final WebView webview = (WebView)this.findViewById(R.id.webView1);
WebSettings webSettings = webview.getSettings();
// Enable Javascript for interaction
webSettings.setJavaScriptEnabled(true);
// Make the zoom controls visible
webSettings.setBuiltInZoomControls(true);
// Allow for touching selecting/deselecting data series
webview.requestFocusFromTouch();
// Set the client
// webview.setWebViewClient(new WebViewClient());
// webview.setWebChromeClient(new WebChromeClient());
final String str = "<books>" +
"<book title=\"A Tale of Two Cities\"/>" +
"<book title=\"1984\"/>" +
"</books>";
// webview.loadUrl("file:///android_asset/test.html");
webview.setWebChromeClient(new WebChromeClient());
webview.setWebViewClient(new WebViewClient()
{
public void onPageFinished(WebView view, String url)
{
webview.loadUrl("javascript:myFunction('"+str+"')");
}
}
);
webview.loadUrl("file:///android_asset/test.html");
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.main, menu);
return true;
}
}