I am developing an Android Application. I want to show web site with WebView. But i don't it. A blank/empty page is opening. The other web site showing but Why this is not showing?
My code is below
Please Help me,
Thanks.
public class MainActivity extends ActionBarActivity{
private WebView ourWebSite;
private ProgressDialog pd;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
initViews();
setProgressDialog();
}
private void initViews(){
ourWebSite = (WebView) findViewById(R.id.ada_web_site);
ourWebSite.getSettings().setJavaScriptEnabled(true);
ourWebSite.setWebViewClient(new WebSiteWebViewClient());
ourWebSite.loadUrl("http://fahrikayahantaksi.com/");
}
private void setProgressDialog(){
pd = new ProgressDialog(MainActivity.this);
pd.setMessage(getResources().getString(R.string.loading));
pd.setProgressStyle(ProgressDialog.STYLE_SPINNER);
pd.show();
}
private class WebSiteWebViewClient extends WebViewClient {
#Override
public boolean shouldOverrideUrlLoading(WebView view, String url) {
view.loadUrl(url);
if (!pd.isShowing()) {
pd.show();
}
return true;
}
#Override
public void onPageFinished(WebView view, String url) {
System.out.println("on finish");
if (pd.isShowing()) {
pd.dismiss();
}
}
#Override
public void onReceivedSslError(WebView view, SslErrorHandler handler, SslError error) {
handler.proceed(); // Ignore SSL certificate errors
}
}
}
I think in your code you missed this suppressLint
#SuppressLint("SetJavaScriptEnabled")
Try to change your code like this.. in this way i am able to load your [page]
private WebView mWebview=null ;
#SuppressLint("SetJavaScriptEnabled")
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
mWebview = new WebView(this);
mWebview.getSettings().setJavaScriptEnabled(true); // enable javascript
final Activity activity = this;
mWebview.setWebViewClient(new WebViewClient() {
public void onReceivedError(WebView view, int errorCode, String description, String failingUrl) {
Toast.makeText(activity, description, Toast.LENGTH_SHORT).show();
}
});
mWebview.loadUrl("http://fahrikayahantaksi.com/");
setContentView(mWebview );
}
Don't forgot to add the Internet permission in your manifest !!
uses-permission android:name="android.permission.INTERNET" />
#SuppressLint("SetJavaScriptEnabled")
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_webview);
String url = getIntent().getStringExtra("url");
webView = new WebView(this);
webView.getSettings().setJavaScriptEnabled(true);
final Activity activity = this;
webView.setWebViewClient(new WebViewClient() {
public void onReceivedError(WebView view, int errorCode, String description, String failingUrl) {
Toast.makeText(activity, description, Toast.LENGTH_SHORT).show();
}
});
webView.loadUrl("http://docs.google.com/viewer?embedded=true&url=" + url);
setContentView(webView );
}
I used google docs to open pdf.
Related
I developed a website for my entreprisee and I work almost exclusively with PHP
So the Java language (and android studio) is a really new for me
Despite this I have to create an APK to use the website (in order to block the android home on this site)
I would like to know how to generate errors in order to test this function
public void onReceivedError(WebView view, int errorCode, String description, String failingUrl)
MainActivity.java
public class MainActivity extends AppCompatActivity {
WebView webView;
SwipeRefreshLayout swipe;
ProgressBar progressBar;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
progressBar = (ProgressBar) findViewById(R.id.awv_progressBar);
swipe = (SwipeRefreshLayout) findViewById(R.id.swipe);
LoadWeb();
progressBar.setMax(100);
progressBar.setProgress(1);
swipe = (SwipeRefreshLayout) findViewById(R.id.swipe);
swipe.setOnRefreshListener(new SwipeRefreshLayout.OnRefreshListener() {
#Override
public void onRefresh() {
webView.reload();
}
});
webView.setWebChromeClient(new WebChromeClient() {
public void onProgressChanged(WebView view, int progress) {
progressBar.setProgress(progress);
}
});
webView.setWebViewClient(new WebViewClient() {
#Override
public void onPageStarted(WebView view, String url, Bitmap favicon) {
super.onPageStarted(view, url, favicon);
progressBar.setVisibility(View.VISIBLE);
}
public void onReceivedError(WebView view, int errorCode, String description, String failingUrl) {
webView.loadUrl("file:///android_asset/error.html");
}
public void onPageFinished(WebView view, String url) {
//Don't show ProgressBar
progressBar.setVisibility(View.INVISIBLE);
//Hide the SwipeRefreshLayout
swipe.setRefreshing(false);
}
});
}
public void LoadWeb() {
webView = (WebView) findViewById(R.id.webView);
webView.getSettings().setJavaScriptEnabled(true);
webView.getSettings().setAppCacheEnabled(true);
webView.loadUrl("mysite.com");
swipe.setRefreshing(true);
}
#Override
public void onBackPressed() {
if (webView.canGoBack()) {
webView.goBack();
} else {
finish();
}
}
}
One way of doing this could be by adding a proxy(using app like fiddler) which returns custom error code as per your wish for all requests from your device.
In case you do not need specific error codes, just use a random system wide wifi proxy which actually does not exist. In this case, device will try sending data to this proxy but won't find it and you will get a callback in onReceivedError.
I have internet permission in my manifest, I am trying to search for "facebook" on the searchbar of my webview, but the problem is, for the 50% searches, It does not load the search request! this is so weird and frustrating. I implemented everything correctly and checked everything 3 times, but no luck. every time I search for the same on other browsers, It always works. but when I search on my webview, It sometimes loads the page, and most of the times, progress bar shows loading, and disappears as if the page has actually loaded, but it is still white. Why is this happening???
public class MainActivity extends AppCompatActivity {
private EditText searchEditText;
private ProgressBar progressBar;
private WebView webView;
private String SearchString = "https://www.google.co.in/search?q=";
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
progressBar = (ProgressBar) findViewById(R.id.progressBar);
progressBar.setMax(100);
webView = (WebView) findViewById(R.id.webView);
webView.setWebViewClient(new WebViewClientDemo());
webView.setWebChromeClient(new WebChromeClientDemo());
webView.getSettings().setJavaScriptEnabled(true);
webView.loadUrl("about:blank");
// use keyboard go button to search
searchEditText = (EditText) findViewById(R.id.searchfield);
searchEditText.setOnEditorActionListener(new TextView.OnEditorActionListener() {
public boolean onEditorAction(TextView arg0, int arg1, KeyEvent arg2) {
CustomSearch();
return false;
}
});
}
private class WebViewClientDemo extends WebViewClient {
#Override
public boolean shouldOverrideUrlLoading(WebView view, String url) {
view.loadUrl(url);
return true;
}
#Override
public void onPageFinished(WebView view, String url) {
super.onPageFinished(view, url);
progressBar.setVisibility(View.GONE);
progressBar.setProgress(100);
}
#Override
public void onPageStarted(WebView view, String url, Bitmap favicon) {
super.onPageStarted(view, url, favicon);
progressBar.setVisibility(View.VISIBLE);
progressBar.setProgress(0);
}
#Override
public void onReceivedError(WebView view, int errorCode, String description, String failingUrl) {
Toast.makeText(getBaseContext(), "page error. please try again!", Toast.LENGTH_SHORT).show();
super.onReceivedError(view, errorCode, description, failingUrl);
}
}
private class WebChromeClientDemo extends WebChromeClient {
public void onProgressChanged(WebView view, int progress) {
progressBar.setProgress(progress);
}
public void CustomSearch() {
searchEditText = (EditText) findViewById(R.id.searchfield);
String url = searchEditText.getText().toString();
url = SearchString + url.replace(" ", "+");// replace_spaces_with_a_"+"_sign(prefix)
webView.loadUrl(url);
}
Did you try encoding your search text, as per my understanding you need to encode the search string.
I have a webview in my android application which renders html pages from a local folder, Now I want to show progress dialog when navigating from one html page to another but the progress dialog which I am using isn't showing up. Here is my code snippet:
#JavascriptInterface
public void save(String respString, boolean ifEndNode) throws JSONException {
ProgressDialog progDialog = null;
try {
if(ifEndNode){
//start loader
progDialog = new ProgressDialog(webView.getContext());
progDialog.setMessage("Saving survey, Please DON'T close the Application!! ");
progDialog.setCanceledOnTouchOutside(false);
progDialog.setCancelable(false);
progDialog.show();
}
//some code here
//...
}
catch (Exception e)
{
Logger.e(context,"exception", "jsonObjectexception");
}
finally {
if(progDialog != null && progDialog.isShowing())
progDialog.dismiss();
}
Can anyone suggest what the problem could be?
You can use WebView with ProgressDialog this way. This is nice and simple approch.
private WebView webView;
ProgressDialog prDialog;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.page_news);
setSupportActionBar((Toolbar) findViewById(R.id.toolbar));
webView = (WebView) findViewById(R.id.wv_news);
webView.setWebViewClient(new MyWebViewClient());
String url = "http://google.com/";
webView.getSettings().setJavaScriptEnabled(true);
webView.getSettings().setCacheMode(WebSettings.LOAD_CACHE_ELSE_NETWORK);
webView.loadUrl(url);
}
private class MyWebViewClient extends WebViewClient {
#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);
prDialog = new ProgressDialog(NewsActivity.this);
prDialog.setMessage("Please wait ...");
prDialog.show();
}
#Override
public void onPageFinished(WebView view, String url) {
super.onPageFinished(view, url);
if(prDialog!=null){
prDialog.dismiss();
}
}
}
Hello guys this the my xml code i am trying the display the browser in window but its always gets redirected to the browser
Xml:
<WebView
android:id="#+id/webview"
android:layout_width="match_parent"
android:layout_height="match_parent">
</WebView>
Code:
public class Activity_Retailers extends Activity {
#SuppressLint("SetJavaScriptEnabled")
#Override
protected void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
setContentView(R.layout.webview_activity);
WebView webview = (WebView)findViewById(R.id.webview);
WebSettings webSettings = webview.getSettings();
webSettings.setJavaScriptEnabled(true);
webSettings.setDatabaseEnabled(true);
webview.loadUrl("http://www.facebook.com");
webview.setWebViewClient(new WebViewClient());
}
Help me out guys thanks a lot
Set WebViewClient to your WebView in java-code and owerride shouldOwerrideUrlLoading() method.
myWebView.setWebViewClient(new WebViewClient(){
#Override
public boolean shouldOverrideUrlLoading(WebView view, String url) {
return true;
}
});
Try following code,
public class Main extends Activity {
private WebView webview;
private static final String TAG = "Main";
private ProgressDialog progressBar;
/** Called when the activity is first created. */
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
requestWindowFeature(Window.FEATURE_NO_TITLE);
setContentView(R.layout.main);
this.webview = (WebView)findViewById(R.string.webview);
WebSettings settings = webview.getSettings();
settings.setJavaScriptEnabled(true);
webview.setScrollBarStyle(WebView.SCROLLBARS_OUTSIDE_OVERLAY);
final AlertDialog alertDialog = new AlertDialog.Builder(this).create();
progressBar = ProgressDialog.show(Main.this, "WebView Example", "Loading...");
webview.setWebViewClient(new WebViewClient() {
public boolean shouldOverrideUrlLoading(WebView view, String url) {
Log.i(TAG, "Processing webview url click...");
view.loadUrl(url);
return true;
}
public void onPageFinished(WebView view, String url) {
Log.i(TAG, "Finished loading URL: " +url);
if (progressBar.isShowing()) {
progressBar.dismiss();
}
}
public void onReceivedError(WebView view, int errorCode, String description, String failingUrl) {
Log.e(TAG, "Error: " + description);
Toast.makeText(activity, "Oh no! " + description, Toast.LENGTH_SHORT).show();
alertDialog.setTitle("Error");
alertDialog.setMessage(description);
alertDialog.setButton("OK", new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
return;
}
});
alertDialog.show();
}
});
webview.loadUrl("http://www.google.com");
}
}
To create a webView recently I was using webViewClient. mWebView.setWebViewClient(new WebViewClient());
But I need to implement a progress bar. When user clicks a link, this progress bar will be visible. After page complete, progressbar will be hidden and webView will be visible. Regarding to this and this, So I added a WebChromeClient. But it loads first URL, but when I click a button inside my web page, a dialog opens and asks to open URL with which application.
I read that I should override shouldOverrideUrlLoading() method. but I get an error that "shouldOverrideUrlLoading" can't be overriden for WebChromeClient.
I would be happy if you can give an example that has progressbar and webView, also opens new URLs inside the same webView.
public class WebActivity extends Activity {
WebView mWebView;
ProgressBar mProgress;
Context mContext;
ProgressBar mProgressBar;
#Override
public void onCreate(Bundle savedInstanceState) {
this.mContext = getApplicationContext();
super.onCreate(savedInstanceState);
setContentView(R.layout.web);
mWebView = (WebView) findViewById(R.id.webview);
mWebView.setWebChromeClient(new myWebChromeClient());
mWebView.getSettings().setJavaScriptEnabled(true);
mWebView.getSettings().setUserAgentString("myApp");
mProgressBar = (ProgressBar) findViewById(R.id.webProgressBar);
mProgressBar.setMax(100);
}
public class myWebChromeClient extends WebChromeClient {
#Override
public boolean shouldOverrideUrlLoading(WebView view, String url) {
view.loadUrl(url);
return false;
}
#Override
public void onProgressChanged(WebView view, int newProgress) {
//WebActivity.this.setValue(newProgress);
super.onProgressChanged(view, newProgress);
}
}
}
try with this code
webView = (WebView) view.findViewById(R.id.transcationwebview);
progressdialog = ProgressDialog.show(mContext, "",
mContext.getString(R.string.please_wait));
progressdialog.setCancelable(true);
progressdialog.setOnCancelListener(new OnCancelListener() {
#Override
public void onCancel(DialogInterface dialog) {
webView.stopLoading();
// webView.clearView();
}
});
webView.getSettings().setJavaScriptEnabled(true);
webView.setWebChromeClient(new MyChromeClient());
webView.setWebViewClient(new WebViewClient() {
#Override
public boolean shouldOverrideUrlLoading(WebView view, String url) {
// TODO Auto-generated method stub
view.loadUrl(url);
return super.shouldOverrideUrlLoading(view, url);
}
#Override
public void onPageFinished(WebView view, String url) {
// TODO Auto-generated method stub
super.onPageFinished(view, url);
if (progressdialog != null && progressdialog.isShowing()) {
progressdialog.dismiss();
} else {
}
}
#Override
public void onPageStarted(WebView view, String url, Bitmap favicon) {
// TODO Auto-generated method stub
super.onPageStarted(view, url, favicon);
}
#Override
public void onReceivedError(WebView view, int errorCode,
String description, String failingUrl) {
// TODO Auto-generated method stub
super.onReceivedError(view, errorCode, description, failingUrl);
}
});
webView.loadUrl("url");
webView.getSettings().setBuiltInZoomControls(true);
public class MyChromeClient extends WebChromeClient {
#Override
public void onProgressChanged(WebView view, int newProgress) {
try {
if (progressdialog.isShowing()) {
progressdialog.setMessage(getString(R.string.loading)
+ newProgress + " %");
} else {
/*
* webView.stopLoading(); webView.clearView();
*/
}
} catch (Throwable e) {
e.printStackTrace();
}
}
}
you can extends WebViewClient instead of WebChromeClient and override the onPageStarted to show the ProgressBar and dismiss it in onPageReceived
I made some changes in the Activity.
use WebViewClient instead of WebChromeClient
and also use ProgressDialog instead of ProgressBar
public class WebActivity extends Activity {
WebView mWebView;
Context mContext;
ProgressDialog mProgressBar;
private static final int DIALOG2_KEY = 1;
#Override
public void onCreate(Bundle savedInstanceState) {
this.mContext = getApplicationContext();
super.onCreate(savedInstanceState);
setContentView(R.layout.web);
mWebView = (WebView) findViewById(R.id.webview);
mWebView.setWebViewClient(new MyWebChromeClient());
mWebView.getSettings().setBuiltInZoomControls(true);
showDialog(DIALOG2_KEY); }
#Override
protected void onResume() {
super.onResume();
mWebView.loadUrl("YOUR_URL");
}
private final class MyWebChromeClient extends WebViewClient {
#Override
public void onPageFinished(WebView view, String url) {
dismissDialog(DIALOG2_KEY);
}
#Override
public boolean shouldOverrideUrlLoading(WebView view, String url) {
if (url.startsWith("file")) {
return false;
} else{
view.loadUrl(url);
return true;
}
}
}
#Override
protected Dialog onCreateDialog(int id) {
switch (id)
{
case DIALOG2_KEY:
{
mProgressBar.setMessage("Loading");
mProgressBar.setIndeterminate(true);
mProgressBar.setCancelable(false);
return mProgressBar;
}
}
return null;
}
}
Hope this help you