Develop Reference

Android webview load Instagram URL but URL not changed

I have a simple webview app that loads my website. Everything is ok, but when the user clicks on the Instagram icon in bottom of the webpage, I want to open the Instagram app instead of loading the Instagram webpage.
I'm trying to achieve this with shouldOverrideUrlLoading function and webview.geturl("https://www.instagram.com/").
The problem is when the user clicks on the Instagram icon, the URL doesn't change and stays default "http://archclub.ir/".
public class MainActivity extends AppCompatActivity {
private WebView webView;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
webView = findViewById(R.id.webview);
webView.setWebViewClient(new WebViewClient());
webView.getSettings().setLoadWithOverviewMode(true);
webView.getSettings().setUseWideViewPort(true);
webView.getSettings().setJavaScriptEnabled(true);
webView.loadUrl("http://archclub.ir/login");
webView.setWebViewClient(new WebViewClient() {
#Override
public boolean shouldOverrideUrlLoading(WebView view, String url) {
url = webView.getUrl();
Toast.makeText(MainActivity.this, webView.getUrl(), Toast.LENGTH_SHORT).show();
if (url.contains("https://www.instagram.com/")) {
Toast.makeText(MainActivity.this, "salam", Toast.LENGTH_SHORT).show();
webView.loadUrl("http://archclub.ir/");
}
return false;
}
});
}}
My problem is: When the user clicks on the Instagram icon on the website, the Toast.makeText(MainActivity.this, "salam", Toast.LENGTH_SHORT).show(); doesn't run.
I've checked this. I've debugged it. The problem is when the Instagram icon is clicked, the webview.geturl is equal to archclub.ir/login and doesn't change to instagram.com but the webview shows the Instagram page.

you were replacing the url over and over.
please replace this block of code instead of shouldOverrideUrlLoading method :
webView.setWebViewClient(new WebViewClient() {
#Override
public boolean shouldOverrideUrlLoading(WebView view, String url) {
// url = webView.getUrl(); // just omit this line
Toast.makeText(ali.this, webView.getUrl(), Toast.LENGTH_SHORT).show();
if (url.contains("https://www.instagram.com/")) {
Toast.makeText(ali.this, "salam", Toast.LENGTH_SHORT).show();
webView.loadUrl("http://archclub.ir/");
return true;
} else return false;
}
});

How to use spinner in webview?

Here is my code,
Code:
http://pastebin.com/cHVThsR5
I am having the spinner here but the spinner keeps rotating. How do I let the app know that the page load is finished? and after all making the spinner invisible?

you will need to do something like this:
webView.setWebViewClient(new WebViewClient() {
#Override
public void onPageFinished(WebView view, String url) {
super.onPageFinished(view, url);
pb.setVisibility(View.GONE);
}
});

Did you try making it invisible manually?
if (isInternetPresent) {
ImageView NoInt=(ImageView) findViewById(R.id.NoInternet);
NoInt.setVisibility(View.GONE);
ProgressBar pb = this.findViewById(R.id.progressBar); //Get a reference to your ProgressBar
WebView webView = (WebView) findViewById(R.id.webview);
WebSettings webSettings = webView.getSettings();
webSettings.setJavaScriptEnabled(true);
webView.setWebViewClient(new WebViewClient());
webView.loadUrl("http://glocalkhabar.com");
pb.setVisibility(View.GONE); //Make it invisible

Why is my fullscreen for youtube crashing?

I´m new to android and i´m using the first time webview, fragment, drawer...
I have the problem that with my code after pressing fullscreen in the video my app is crashing.
And i have no idea what is going wrong...
WebViewFragmentVideos
public class WebViewFragmentVideos extends Fragment {
WebView webView;
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
// Retrieving the currently selected item number
int position = getArguments().getInt("position");
String url = getArguments().getString("url");
// List of rivers
String[] menus = getResources().getStringArray(R.array.Websitesenglish);
// Creating view corresponding to the fragment
View v = inflater.inflate(R.layout.fragment_layout, container, false);
// Updating the action bar title
getActivity().getActionBar().setTitle(menus[position]);
//Initializing and loading url in webview
webView = (WebView)v.findViewById(R.id.webView);
webView.getSettings().setJavaScriptEnabled(true);
webView.getSettings().setLoadsImagesAutomatically(true);
webView.getSettings().setBuiltInZoomControls(true);
webView.loadUrl(url);
webView.setWebChromeClient(new MyChromeClient());
webView.setWebViewClient(new WebViewClient(){
#Override
public boolean shouldOverrideUrlLoading(WebView view, String url){
view.loadUrl(url);
return true;
}
});
return v;}
class MyChromeClient extends WebChromeClient {
String url = getArguments().getString("url");
#Override
public void onShowCustomView(View view, CustomViewCallback callback) {
Intent intent = new Intent(null, LandVideoAct.class);
intent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
intent.putExtra("video", url);
startActivity(intent);
}
}
}
and
LandVideoAct
public class LandVideoAct extends Activity {
WebView webView, fullweb;
String url = "";
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
requestWindowFeature(Window.FEATURE_NO_TITLE);
setTheme(android.R.style.Theme_Light_NoTitleBar_Fullscreen);
setContentView(R.layout.landfull);
url = getIntent().getStringExtra("video") + "?fs=1";
setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE);
webView = (WebView) findViewById(R.id.fullwebview);
if (Build.VERSION.SDK_INT < 8) {
webView.getSettings().setPluginsEnabled(true);
} else {
webView.getSettings().setPluginState(PluginState.ON);
}
webView.getSettings().setJavaScriptEnabled(true);
webView.setWebChromeClient(new WebChromeClient() {
#Override
public void onShowCustomView(View view, CustomViewCallback callback) {
LandVideoAct.this.finish();
}
});
webView.loadUrl(url);
}}
I hope you dudes can help me with my problem.
Thank you!!

this piece of line of code is not allowed in android.
Intent intent = new Intent(null, LandVideoAct.class);
coming to your crash problem. Its mainly because of a above line of code. When full screen of video in webview is called , its gives call to android system ie onShowCustomView(View view, CustomViewCallback callback). Where you above line of code is failing.
instead of that use activity context or application context
Intent intent = new Intent(context, LandVideoAct.class);

1)Difference between setOnClickListener and onclick 2) how to only reload webview w/o reloading others in the same linearlayout

My application has a WebView on top. For showing things, I use Toast. But the Toast box has never shown if WebView appears, while before WebView shows, Toast is visible. I was wondering if Toast was likely covered by WebView. Did anyone have the same problems?
Thanks.
EDITING!!!
Hi, thank you for all your inputs. I found I posted a wrong question for my problems. I found that the real problems are the following. In the code, I use setOnClickListener to register a callback for the button. In debugging, I found that the callback is not called for some reason, so the Toast statement is not called, and it is not covered by webview.
Then, I tried the onclick attributes in xml layout for defining a callback clickGo for the button. This one works when I press the button, and the Toast shows.
Now, my question is what is the difference between setOnClickListener and onlick.
One more question, in my clickGo, I refresh the webview. The webview indeed reloads when button is clicked. But in the meanwhile the spinner is also reloaded, and the selection position is reset to the 0-th. How can I prevent this?
Thank you again!
public class MainActivity extends Activity {
JSONArray jArray;
String result = null;
InputStream is = null;
StringBuilder sb=null;
private Spinner spinner;
private Button btnSubmit;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
addListenerOnButton();
addListenerOnSpinnerItemSelection();
new DownloadTask().execute("www.google.com");
}
#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;
}
// Given a string representation of a URL, sets up a connection and gets
// an input stream.
private String downloadUrl(String urlString) throws IOException {
HttpClient httpClient = new DefaultHttpClient();
HttpGet get = new HttpGet(urlString);
HttpResponse response = httpClient.execute(get);
// Build up result
return EntityUtils.toString(response.getEntity());
}
public void addListenerOnSpinnerItemSelection() {
spinner = (Spinner) findViewById(R.id.spinner);
spinner.setOnItemSelectedListener(new CustomOnItemSelectedListener());
}
public void clickGo(View v) {
Toast toast = Toast.makeText(MainActivity.this,
"OnClickListener : " +
"\nSpinner 1 : "+ String.valueOf(spinner.getSelectedItem()),
Toast.LENGTH_SHORT);
toast.setGravity(Gravity.TOP, 0, 0);
toast.show();
new DownloadTask().execute("www.google.com");
}
// get the selected dropdown list value
public void addListenerOnButton() {
spinner = (Spinner) findViewById(R.id.spinner);
btnSubmit = (Button) findViewById(R.id.button);
btnSubmit.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View v) {
Toast toast = Toast.makeText(MainActivity.this,
"OnClickListener : " +
"\nSpinner 1 : "+ String.valueOf(spinner.getSelectedItem()),
Toast.LENGTH_SHORT);
toast.setGravity(Gravity.TOP, 0, 0);
toast.show();
new DownloadTask().execute("www.google.com");
}
});
}
`
// Implementation of AsyncTask used to download XML feed from stackoverflow.com.
private class DownloadTask extends AsyncTask<String, Void, String> {
#Override
protected String doInBackground(String... urls) {
return downloadUrl(urls[0]);
}
#Override
protected void onPostExecute(String result) {
setContentView(R.layout.activity_main);
// Displays the HTML string in the UI via a WebView
WebView myWebView = (WebView) findViewById(R.id.webview);
WebSettings webSettings = myWebView.getSettings();
webSettings.setJavaScriptEnabled(true);
myWebView.loadUrl(result);
}
}
}
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical" >
<LinearLayout android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal" >
<TextView android:id="#+id/text"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="#string/word" />
<Button android:id="#+id/button"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Go"
android:onClick="clickGo" />
</LinearLayout>
<Spinner android:id="#+id/spinner"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:entries="#array/dictionaries"
android:prompt="#string/dict_prompt" />
<WebView android:id="#+id/webview"
android:layout_width="fill_parent"
android:layout_height="fill_parent" />
</LinearLayout>

I think this question could fix your question.
if this is could be shown, then I think toast should not be covered by WebView.
onPageFinished() never called (webview)!
mWebView.setWebViewClient(new WebViewClient() {
#Override
public void onPageFinished(WebView view, String url) {
super.onPageFinished(mWebView, url);
Toast.makeText(getApplicationContext(), "Done!", Toast.LENGTH_SHORT).show();
}
#Override
public void onReceivedError(WebView view, int errorCode, String description, String failingUrl) {
Toast.makeText(getApplicationContext(), "Oh no! " + description, Toast.LENGTH_SHORT).show();
}
});
mWebView.loadUrl("http://pabebbe.com/m/register");

For this we need to add a webviewclient in android for the WebView we are adding in the xml.
Then we have to register the webviewclient with the WebView we are creating using this method.
myWebView.setWebViewClient(new MyWebViewClient());
Now,Create a new project and name it WebViewDemo.
In main.xml,
<?xml version="1.0" encoding="utf-8"?>
<WebView xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/webview"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
/>
Now create a file named test.html inside the assets folder and copy this code into it. This is the html file that we are loading into the webview.
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML Basic 1.1//EN"
"http://www.w3.org/TR/xhtml-basic/xhtml-basic11.dtd">
<html>
<body>
Google
<input type="button" value="Click Me" onClick="showAndroidToast('Hello Google!')"
/>
<script type="text/javascript">
function showAndroidToast(toast) {
Android.showToast(toast);
}
</script>
</body>
</html>
Now in the java code refer the webview and load the html file
WebView myWebView;
myWebView = (WebView) findViewById(R.id.webview);
myWebView.loadUrl("file:///android_asset/test.html");
Now enable the javascript by calling this function
WebSettings webSettings = myWebView.getSettings();
webSettings.setJavaScriptEnabled(true);
Now we have to add the javascript interface for listening to the javascript functions that we define in the webview html file.
myWebView.addJavascriptInterface(new JavaScriptInterface(this), "Android");
// outside oncreate
public class JavaScriptInterface {
Context mContext;
/** Instantiate the interface and set the context */
JavaScriptInterface(Context c) {
mContext = c;
}
/** Show a toast from the web page */
public void showToast(String toast) {
Toast.makeText(mContext, toast, Toast.LENGTH_SHORT).show();
startActivity(new Intent(WebViewDemo.this, WebViewDemo.class));
}
}
Now create a webview client for listening to the browser activities and doing specific function.
myWebView.setWebViewClient(new MyWebViewClient());
private class MyWebViewClient extends WebViewClient {
#Override
public boolean shouldOverrideUrlLoading(WebView view, String url) {
if (Uri.parse(url).getHost().equals("www.coderzheaven.com")) {
Toast.makeText(getApplicationContext(), "www.coderzheaven.com",
Toast.LENGTH_SHORT).show();
return false;
}
// Otherwise, the link is not for a page on my site, so launch another Activity
that handles URLs
Intent intent = new Intent(Intent.ACTION_VIEW, Uri.parse(url));
startActivity(intent);
return true;
}
}
Now we listen to the backbutton.
#Override
public boolean onKeyDown(int keyCode, KeyEvent event) {
// Check if the key event was the BACK key and if there's history
if ((keyCode == KeyEvent.KEYCODE_BACK) && myWebView.canGoBack()) {
myWebView.goBack();
return true;
}
return super.onKeyDown(keyCode, event);
}
Now the project is over . Now run and see the result.
Here is the full java code for this example
package com.coderzheaven.pack;
import android.app.Activity;
import android.content.Context;
import android.content.Intent;
import android.net.Uri;
import android.os.Bundle;
import android.view.KeyEvent;
import android.webkit.WebSettings;
import android.webkit.WebView;
import android.webkit.WebViewClient;
import android.widget.Toast;
public class WebViewDemo extends Activity {
WebView myWebView;
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
myWebView = (WebView) findViewById(R.id.webview);
myWebView.loadUrl("file:///android_asset/test.html");
WebSettings webSettings = myWebView.getSettings();
webSettings.setJavaScriptEnabled(true);
myWebView.addJavascriptInterface(new JavaScriptInterface(this), "Android");
// myWebView.setWebViewClient(new WebViewClient());
myWebView.setWebViewClient(new MyWebViewClient());
}
public class JavaScriptInterface {
Context mContext;
/** Instantiate the interface and set the context */
JavaScriptInterface(Context c) {
mContext = c;
}
/** Show a toast from the web page */
public void showToast(String toast) {
Toast.makeText(mContext, toast, Toast.LENGTH_SHORT).show();
startActivity(new Intent(WebViewDemo.this, WebViewDemo.class));
}
}
private class MyWebViewClient extends WebViewClient {
#Override
public boolean shouldOverrideUrlLoading(WebView view, String url) {
if (Uri.parse(url).getHost().equals("www.google.com")) {
// This is my web site, so do not override; let my WebView load the page
Toast.makeText(getApplicationContext(), "www.google.com",
Toast.LENGTH_SHORT).show();
return false;
}
// Otherwise, the link is not for a page on my site, so launch another Activity
that handles URLs
Intent intent = new Intent(Intent.ACTION_VIEW, Uri.parse(url));
startActivity(intent);
return true;
}
}
#Override
public boolean onKeyDown(int keyCode, KeyEvent event) {
// Check if the key event was the BACK key 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);
}
}

no toast are drawn with maximum draw order as they are created during runtime.. make sure where are you creating your toast and if its really called.
EDIT
if your problem was about draw order try to use this code
private void moveViewToFront(View currentView)
{
ViewGroup vg = ((ViewGroup) currentView.getParent());
vg.bringChildToFront(vg.getChildAt(vg.indexOfChild(currentView)));
}
moveViewToFront((LinearLayout) findViewById(R.id.main_layout_2_linear));//pass your ui element you want to bring to the top

How i can call webview form the other screen

i have 3 diferents screens: main(contains one image), dialog(contains another image) and browser(contains a webView) and one activity source, ok, in the activity source I call the dialog on click image in main layout, then the dialog shows another image and I want when click in the dialog image, the app change main layout for browser layout and then the browser load an specific URI and then close the dialog.
My code dont work becouse i dont know how i need use the webView in separate layout, for example, to call in dialog i need use dialog.findViewById(R.id.webView1) or in main only findViewById(R.id.webView1), but this not work now and the app crash...
My code:
ImageView imgMain = (ImageView)findViewById(R.id.imgMain1);
imgMain.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View arg0) {
final Dialog dialog = new Dialog(mainActivity.this);
dialog.setContentView(R.layout.dialog);
dialog.setTitle("Android");
dialog.setCancelable(true);
dialog.show();
//Boton de cerrar del dialog Android
Button closeDialog = (Button)dialog.findViewById(R.id.closeDialogBT);
closeDialog.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View v) {
dialog.cancel();
}
});
//click en imagen juegos del dialog android
ImageView imgDialog = (ImageView)dialog.findViewById(R.id.imgDialog1);
imgDialog.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View v) {
final WebView mWebView = (WebView)findViewById(R.id.webView1);
mWebView.loadUrl("http://www.example.com");
mWebView.setWebViewClient(new WebViewClient());
setContentView(R.layout.browser);
dialog.cancel();
}
});
}
});
Thank You!!!!

Why do you want to start WebView of one Activity from other activity.
It will be better to start activity containing WebView from your "imgDialog" with the intent.
and send URL string in that intent's extras.
in next step load webview with the URL string fetched from intent.

Try this. Hope this will help you
public class Example extends Activity {
private WebView mWebView;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.translate);
mWebView = (WebView) findViewById(R.id.webview);
mWebView.getSettings().setJavaScriptEnabled(true);
mWebView.loadUrl("http://www.example.com");
mWebView.setWebViewClient(new HelloWebViewClient());
}
private class HelloWebViewClient extends WebViewClient {
#Override
public boolean shouldOverrideUrlLoading(WebView webview, String url)
{
webview.loadUrl(url);
return true;
}
}
#Override
public boolean onKeyDown(int keyCode, KeyEvent event)
{
if ((keyCode == KeyEvent.KEYCODE_BACK) && mWebView.canGoBack())
{
mWebView.goBack();
return true;
}
return super.onKeyDown(keyCode, event);
}
}