Develop Reference

Not able reload custom URL sometimes on webviewclient

I'm using an URL in webview, when I click a link it should direct it to a custom url like paynow://xxxxx.
When I use the webview client it is coming sometimes and not redirect sometime.
Is there any wrong in my code.
please check the url onPageStarted and shouldOverrideUrlLoading
protected void onCreate(#Nullable Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
context=this;
MainApplication.getComponent(this).inject(this);
back=findViewById(R.id.back_w);
front=findViewById(R.id.right_w);
wv1=(WebView)findViewById(R.id.webview);
wv1.getSettings().setLoadsImagesAutomatically(true);
wv1.getSettings().setJavaScriptEnabled(true);
wv1.setWebViewClient(new MyBrowser());
wv1.setWebChromeClient(new WebChromeClient());
wv1.setScrollBarStyle(View.SCROLLBARS_INSIDE_OVERLAY);
wv1.loadUrl(Constants.Load_url);
}
private class MyBrowser extends WebViewClient {
#Override
public boolean shouldOverrideUrlLoading(WebView view, String url) {
view.loadUrl(url);
return true;
}
#RequiresApi(api = Build.VERSION_CODES.LOLLIPOP)
#Override
public boolean shouldOverrideUrlLoading(WebView view, WebResourceRequest request) {
final Uri uri = request.getUrl();
return super.shouldOverrideUrlLoading(view, uri.toString());
}
#Override
public void onPageStarted(WebView view, String url, Bitmap favicon) {
super.onPageStarted(view, url, favicon);
if (url.startsWith("paynow://"))
{
if (url.contains("order"))
{
startActivityForResult(new Intent(context,TipsActivity.class).putExtra("url",url),1);
}
}
}
#Override
public void onPageFinished(WebView view, String url) {
super.onPageFinished(view, url);
}
#Override
public void onReceivedError(WebView view, WebResourceRequest request, WebResourceError error) {
super.onReceivedError(view, request, error);
wv1.setVisibility(View.GONE);
}
}
Answer:
WebView is blocking popup which redirect to custom url
by adding wv1.getSettings().setPluginState(WebSettings.PluginState.ON); it worked

You need to move the logic in onPageStarted to the shouldOverrideUrlLoading functions.

WebView is blocking popup which redirect to custom url, by adding wv1.getSettings().setPluginState(WebSettings.PluginState.ON); it worked

In android web view the html page is being treated like it is being opened in a big screen rather in mobile device

I am using a webview in my android app. Now the issue is in that webview it is opening like a desktop site not like a mobile platform site.
As for example, when I open the page in webview it is being shown like
And the same page when I am opening in web browser it looks like;
Now my question is I want to open the page in my web view like it is in web browser and I have no idea why it is behaving like that.
My webview code is like;
final WebView webview = (WebView)vi.findViewById(R.id.webview);
WebSettings set = webview.getSettings();
set.setJavaScriptEnabled(true);
set.setBuiltInZoomControls(true);
set.setJavaScriptEnabled(true);
set.setDomStorageEnabled(true);
set.setLoadWithOverviewMode(true);
set.setUseWideViewPort(true);
set.setSaveFormData(true);
set.setJavaScriptCanOpenWindowsAutomatically(true);
set.setBuiltInZoomControls(true);
set.setDisplayZoomControls(false);
set.setSupportZoom(false);
set.setDefaultTextEncodingName("utf-8");
WebChromeClient webClient = new WebChromeClient(){
public void onCloseWindow(Window w){
super.onCloseWindow(webview);
System.out.println("Closed");
}
};
webview.setWebChromeClient(webClient);
webview.setWebViewClient(new WebViewClient(){
#Override
public void onReceivedError(WebView view, int errorCode, String description, String failingUrl)
{
// Handle the error
}
#Override
public boolean shouldOverrideUrlLoading(WebView view, String url)
{
view.loadUrl(url);
return true;
}
#Override
public void onPageFinished(WebView view, String url) {
dialog.dismiss();
}
});
webview.setInitialScale(1);
webview.getSettings().setJavaScriptEnabled(true);
webview.getSettings().setLoadWithOverviewMode(true);
webview.loadUrl(url);
I changed the value of webview.setInitialScale(1); but no luck so far.
I can not change the HTML of the pages, so I need to do some kind of changes in webview end.
N.B. The attached images of page is same HTML page opening in browser and webview. PLEASE IGNORE THE BACKGROUND COLOR.
Any help will be very good for me. Thanks in advance.

This works for me
public class MainActivity extends AppCompatActivity {
private WebView webView;
#Override
protected void onCreate(Bundle savedInstanceState) {
getWindow().requestFeature(Window.FEATURE_PROGRESS);
setContentView(R.layout.activity_main);
super.onCreate(savedInstanceState);
initViews();
}
protected void initViews() {
webView = (WebView) findViewById(R.id.webView);
if (Build.VERSION.SDK_INT >= 19) {
webView.setLayerType(View.LAYER_TYPE_HARDWARE, null);
} else {
webView.setLayerType(View.LAYER_TYPE_SOFTWARE, null);
}
webView.getSettings().setJavaScriptEnabled(true);
webView.getSettings().setDomStorageEnabled(true);
webView.getCertificate();
webView.setWebViewClient(new SSLTolerantWebViewClient());
webView.loadUrl("https://www.google.com");
}
private class SSLTolerantWebViewClient extends WebViewClient {
// ProgressBar progressBar = (ProgressBar) findViewById(R.id.progress_bar);
#Override
public boolean shouldOverrideUrlLoading(WebView view, String url) {
view.loadUrl(url);
Log.d("ddd", "ddd");
return true;
}
#Override
public void onPageFinished(WebView view, String url) {
super.onPageFinished(view, url);
// progressBar.setVisibility(View.GONE);
}
#Override
public void onPageStarted(WebView view, String url, Bitmap favicon) {
super.onPageStarted(view, url, favicon);
// progressBar.setVisibility(View.VISIBLE);
}
#Override
public void onReceivedSslError(WebView view, final SslErrorHandler handler, SslError error) {
handler.proceed();
}
}
}

Is your page responsive ? Try opening page in mobile browser. if it is not responsive make it responsive. Make sure you have added viewport meta tag in html like -

How do you disable links, pages and references in a WebView?

I have a Web View in Android,and I open a html web page in it.But it's full of links and images,and when I click one of them,it loads in my webview. So I want to disable this behavior,so if I click on a link,don't load it. I've tried this solution and edited a bit for myself, but not worked.
Please give me a solution with full code. I'm new to Java and Android.
My Full code here:
public class MainActivity extends AppCompatActivity {
ProgressBar progressBar;
WebView webView;
String url="http://example.com";
TextView textView;
//to hide progressbar after loading part 1
LinearLayout liProgressContainer;
private String currentUrl;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
progressBar = (ProgressBar) findViewById(R.id.progressBar);
webView = (WebView) findViewById(R.id.webView);
textView = (TextView) findViewById(R.id.tvLoadingPercentage);
//to hide progressbar after loading part 2
liProgressContainer = (LinearLayout) findViewById(R.id.liProgressContainer);
webView.setWebChromeClient(new WebChromeClient() {
public void onProgressChanged(WebView view, int progress) {
progressBar.setProgress(progress);
textView.setText(progress + " %");
}
});
webView.setWebViewClient(new MyWebViewClient());
WebSettings browserSetting = webView.getSettings();
browserSetting.setJavaScriptEnabled(true);
webView.loadUrl(url);
}
//back button function
#Override
public void onBackPressed() {
if (webView.canGoBack()) {
webView.goBack();
} else {
super.onBackPressed();
}
}
private class MyWebViewClient extends WebViewClient {
#Override
public void onPageStarted(WebView view, String url, Bitmap favicon) {
liProgressContainer.setVisibility(View.VISIBLE);
super.onPageStarted(view, url, favicon);
}
#Override
public boolean shouldOverrideUrlLoading(WebView view, String url) {
//progressBar.setVisibility(View.VISIBLE);
view.loadUrl(url);
return true;
//return super.shouldOverrideUrlLoading(view, url);
}
#Override
public void onPageFinished(WebView view, String url) {
super.onPageFinished(view, url);
liProgressContainer.setVisibility(View.GONE);
//hide header part
}
}
}

You need to configure your shouldOverrideUrlLoading method in your MyWebViewClient class to only load a URL should it match your desired URL. Add a field to your MyWebViewClient class to store a URL and add a single-arg constructor.
private String desiredUrl;
public MyWebViewClient(String url) {
this.desiredUrl = url;
}
In your shouldOverrideUrlLoading method, check to see if the supplied URL is equal to your URL instance variable.
#Override
public boolean shouldOverrideUrlLoading(WebView view, String url) {
if (desiredUrl.equals(url))
view.loadUrl(url);
return true;
}
When setting your web view client, pass your URL argument, e.g.
webView.setWebViewClient(new MyWebViewClient(url));

i am loading webview on starting of my application

I am loading a web view on the startup of my application.
But before that I am loading a splash screen and I want to show the splash screen until the web view is fully loaded.
How can I do that?
I am working in Android Studio.

You can hide your splash screen when your webpage load complicated using webview client
mWebView.setWebViewClient(new WebViewClient() {
public void onPageFinished(WebView view, String url) {
// hide your splash screen
}
});

Do like this...
public class SItemsWebView extends ActionBarActivity {
private WebView webView;
private String url;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_show_subject_list_items_in_web_view);
this.initViews();
loadWebView(url);
}
//initializes all views
private void initViews() {
webView = (WebView) findViewById(R.id.filesWebView);
}
//show Url in WebView
public class myWebClient extends WebViewClient {
#JavascriptInterface
#Override
public void onPageStarted(WebView view, String url, Bitmap favicon) {
// TODO Auto-generated method stub
super.onPageStarted(view, url, favicon);
//show your splash scree here
}
#Override
public boolean shouldOverrideUrlLoading(WebView view, String url) {
// TODO Auto-generated method stub
view.loadUrl(url);
return true;
}
#Override
public void onPageFinished(WebView view, String url) {
// TODO Auto-generated method stub
super.onPageFinished(view, url);
// hide your splash image here
}
}
}
public void loadWebView(String url) {
webView.setWebViewClient(new myWebClient());
webView.getSettings().setJavaScriptEnabled(true);
webView.getSettings().setBuiltInZoomControls(true);
webView.getSettings().setUseWideViewPort(true);
webView.getSettings().setLoadWithOverviewMode(true);
webView.setVisibility(View.VISIBLE);
webView.loadUrl(url);
}
}

Try like this,
mWebView.setWebViewClient(new WebViewClient() {
public void onPageStarted(WebView view, String url, Bitmap icon) {
// TODO Auto-generated method stub
super.onPageStarted(view, url, icon);
//show your splash scree here
}
#Override
public boolean shouldOverrideUrlLoading(WebView view, String url) {
// TODO Auto-generated method stub
view.loadUrl(url);
return true;
}
public void onPageFinished(WebView view, String url) {
// hide your splash screen
}
});

Webview loading dialog

My code below loads a progress dialogue into webview on the initial load but I'd like it to appear every time webview is loading a URL!
I think I need to use onpagestarted() before the progressbar but I'm a bit of a noob at all this and having trouble getting it working. Can anyone advise please?
//need to set progress bar condition here!
progressBar = ProgressDialog.show(MyActivity.this, "Loading title", "Loading...");
myWebView.setWebViewClient(new WebViewClient() {
public void onPageFinished(WebView view, String url) {
Log.i(TAG, "Finished loading URL: " +url);
if (progressBar.isShowing()) {
progressBar.dismiss();
}
}
});
//web site load
myWebView.loadUrl("http://www.google.com");

boolean loadingFinished = true;
boolean redirect = false;
mWebView.setWebViewClient(new WebViewClient() {
#Override
public boolean shouldOverrideUrlLoading(WebView view, String urlNewString) {
if (!loadingFinished) {
redirect = true;
}
loadingFinished = false;
webView.loadUrl(urlNewString);
return true;
}
#Override
public void onPageStarted(WebView view, String url) {
loadingFinished = false;
//SHOW LOADING IF IT ISNT ALREADY VISIBLE
}
#Override
public void onPageFinished(WebView view, String url) {
if(!redirect){
loadingFinished = true;
}
if(loadingFinished && !redirect){
//HIDE LOADING IT HAS FINISHED
} else{
redirect = false;
}
}
});
As shown here: How to listen for a WebView finishing loading a URL?

You should use the onPageStarted() method to show the ProgressDialog:
myWebView.setWebViewClient(new WebViewClient() {
public boolean shouldOverrideUrlLoading(WebView view, String url) {
view.loadUrl(url);
return false;
}
public void onPageStarted(WebView view, String url, Bitmap favicon) {
progressBar.show();
}
public void onPageFinished(WebView view, String url) {
progressBar.hide();
}
});