Develop Reference

Black video while working with ip camera in webview android

I want to display video of IP camera in android application.
For this I am using a webview.
In the navigator of my smartphone I can see and control the web camera but in the webview video is always black and controls don't work.
This is the source code of my activity :
public class MainActivity extends Activity {
private WebView webView;
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.fragment_main);
webView = (WebView) findViewById(R.id.vision);
webView.setWebChromeClient(new WebChromeClient());
webView.setWebViewClient(new myWebViewClient());
webView.setHttpAuthUsernamePassword("http://192.168.1.2/", null, "admin", null);
webView.getSettings().setJavaScriptEnabled(true);
webView.getSettings().setPluginState(PluginState.ON);
webView.loadUrl("http://192.168.1.2/");
}
public class myWebViewClient extends WebViewClient {
#Override
public boolean shouldOverrideUrlLoading(WebView view, String url) {
view.loadUrl(url);
return true;
}
}
}
I got this error in the log ![enter image description here][1]
web console uncaught reference error resolution is not defined.

If you are trying to play a HTML5 video (from your IP camera) in a WebView, this previous answer from another question might help you:
WebView and HTML5 <video>

Flash is not loading in Web view in Android

I am trying to Load a webview in Android. Where web page have a swf file but it is not loading. I know there are many question and answer on same topic but no one helped me.
I have already targeted it version 11. And I have put android:hardwareAccelerated="true" too in manifest.xml file.
My code is here-
public class MainActivity extends Activity {
private WebView mWebView;
String url="http://mypages.com/Ch_001/ScoPage.html";
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
mWebView = (WebView) findViewById(R.id.webView);
mWebView.setKeepScreenOn(true);
WebSettings settings = mWebView.getSettings();
settings.setPluginState(PluginState.ON);
mWebView.getSettings().setJavaScriptEnabled(true);
mWebView.getSettings().setDomStorageEnabled(true);
mWebView.getSettings().setBuiltInZoomControls(true);
mWebView.setInitialScale(100);
// wbView.getSettings().setUseWideViewPort(true);
mWebView.setScrollBarStyle(View.SCROLLBARS_OUTSIDE_OVERLAY);
mWebView.setWebViewClient(new MyWebViewClient());
}
private class MyWebViewClient extends WebViewClient {
#Override
public void onPageFinished(WebView view, String url) {
super.onPageFinished(view, url);
}
#Override
public void onReceivedSslError(WebView view, SslErrorHandler handler,
SslError error) {
Log.e("Error VAGARO", error.toString());
handler.proceed();
}
#Override
public boolean shouldOverrideUrlLoading(WebView view, String url) {
view.loadUrl(url);
return false;
}
}
}

After one week struggle I got a Flash player from Macromedia, which works for me.
You can search in Google for-"Flash Player 11.1.for Android 4.0 - Macromedia - Adobe" or install APK from this link.
Install this apk in your Android device.
And when you will open it, it will ask for choose default browser.
Choose any browser which support Flash (UC-Browser, Chrome etc).
Now run your any application it will load your Flash video.

Add this code:
webview.getSettings().setPluginsEnabled(true);

add mWebView.loadUrl(url);in onCreate

is there a good way to open a webpage automatically after an app starts?

I guess the question is the description. Plain, simple... How can I do this in a simple and easy way? I have done this before in regular Java, but android being so similar and yet soooo different seems to have a different way of doing so.
-Thanks!

You can do it with this in your OnCreate() method:
Intent openLink = new Intent(Intent.ACTION_VIEW, Uri.parse("yourLink"));
startActivity(openLink);
Or if you don't want to open it in a web browser you can load it in a WebView like this:
WebView myWebView = (WebView) findViewById(R.id.yourWebView);
myWebView.loadUrl("yourLink");
myWebView.setWebViewClient(new MyWebViewClient());
but then don't forget to create a WebViewClient:
public class MyWebViewClient extends WebViewClient {
#Override
public boolean shouldOverrideUrlLoading(WebView view, String url) {
view.loadUrl(url);
return true;
}
}

WebView will not function with loadUrl but works with loadData

I'm using standard addresses like google and facebook, but loadUrl does nothing, it just sits there at a white screen, but if i pipe html into it using loadData, it works fine. Any ideas or tips? I've got it enabling javascript, and I have this call:
mWebView.setWebViewClient(new WebViewClient() {
#Override
public void onPageFinished(WebView view, String url) {
TextView t;
t = (TextView)findViewById(R.id.pageTitle);
t.setText(view.getTitle());
}
});
Do i need to override anything else?

Hope this helps.
public class WebViewSampleActivity extends Activity {
WebView wb;
private class HelloWebViewClient extends WebViewClient {
#Override
public boolean shouldOverrideUrlLoading(WebView view, String url) {
return false;
}
}
/** Called when the activity is first created. */
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
wb=(WebView)findViewById(R.id.webView1);
wb.getSettings().setJavaScriptEnabled(true);
wb.getSettings().setLoadWithOverviewMode(true);
wb.getSettings().setUseWideViewPort(true);
wb.getSettings().setBuiltInZoomControls(true);
wb.getSettings().setPluginState(WebSettings.PluginState.ON);
wb.getSettings().setPluginsEnabled(true);
wb.setWebViewClient(new HelloWebViewClient());
wb.loadUrl("http://www.foo.com");
}
}

The discussed above are cool and pretty good but I've noticed this thing in newer versions of android studio the method loadUrl() does not work direct through. so we should identify the settings first then set true for JS as like this
wb.getSettings().setJavaScriptEnabled(true);
wb.getSettings().setLoadWithOverviewMode(true);

Clicking URLs opens default browser

I have loaded an external URL in my WebView. Now what I need is that when the user clicks on the links on the page loaded, it has to work like a normal browser and open the link in the same WebView. But it's opening the default browser and loading the page there?
I have enabled JavaScript. But still it's not working. Have I forgotten something?

If you're using a WebView you'll have to intercept the clicks yourself if you don't want the default Android behaviour.
You can monitor events in a WebView using a WebViewClient. The method you want is shouldOverrideUrlLoading(). This allows you to perform your own action when a particular URL is selected.
You set the WebViewClient of your WebView using the setWebViewClient() method.
If you look at the WebView sample in the SDK there's an example which does just what you want. It's as simple as:
private class HelloWebViewClient extends WebViewClient {
#Override
public boolean shouldOverrideUrlLoading(WebView view, String url) {
view.loadUrl(url);
return true;
}
}

in some cases you might need an override of onLoadResource if you get a redirect which doesn't trigger the url loading method. in this case i tried the following:
#Override
public void onLoadResource(WebView view, String url)
{
if (url.equals("http://redirectexample.com"))
{
//do your own thing here
}
else
{
super.onLoadResource(view, url);
}
}

Official documentation says, click on a link in a WebView will launch application that handles URLs. You need to override this default behavior
myWebView.setWebViewClient(new WebViewClient() {
#Override
public boolean shouldOverrideUrlLoading(WebView view, String url) {
return false;
}
});
or if there is no conditional logic in the method simply do this
myWebView.setWebViewClient(new WebViewClient());

Add this 2 lines in your code -
mWebView.setWebChromeClient(new WebChromeClient());
mWebView.setWebViewClient(new WebViewClient());

The method boolean shouldOverrideUrlLoading(WebView view, String url) was deprecated in API 24. If you are supporting new devices you should use boolean shouldOverrideUrlLoading (WebView view, WebResourceRequest request).
You can use both by doing something like this:
if(Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
newsItem.setWebViewClient(new WebViewClient() {
#Override
public boolean shouldOverrideUrlLoading(WebView view, WebResourceRequest request) {
view.loadUrl(request.getUrl().toString());
return true;
}
});
} else {
newsItem.setWebViewClient(new WebViewClient() {
#Override
public boolean shouldOverrideUrlLoading(WebView view, String url) {
view.loadUrl(url);
return true;
}
});
}

Arulx Z's answer was exactly what I was looking for.
I'm writing an app with Navigation Drawer with recyclerview and webviews, for keeping the web browsing inside the app regardless of hyperlinks clicked (thus not launching the external web browser). For that it will suffice to put the following 2 lines of code:
mWebView.setWebChromeClient(new WebChromeClient());
mWebView.setWebViewClient(new WebViewClient());
exactly under your WebView statement.
Here's a example of my implemented WebView code:
public class WebView1 extends AppCompatActivity {
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
WebView wv = (WebView) findViewById(R.id.wv1); //webview statement
wv.setWebViewClient(new WebViewClient()); //the lines of code added
wv.setWebChromeClient(new WebChromeClient()); //same as above
wv.loadUrl("http://www.google.com");
}}
this way, every link clicked in the website will load inside your WebView.
(Using Android Studio 1.2.2 with all SDK's updated)