can anybody tell me how to detect click events on html page i have one android app. in that app i have loaded one thrid party website. in that website some print buttons are there.But when i touch print button nothing is happened. So i just want to know that how can detect the button click on webpage and execute printjob
here is my main activity
package com.example.re;
public class MainActivity extends AppCompatActivity {
public WebView webView;
private WebView mWebView;
@TargetApi(Build.VERSION_CODES.LOLLIPOP)
@RequiresApi(api = Build.VERSION_CODES.JELLY_BEAN)
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
webView = (WebView)findViewById(R.id.web);
webView.setWebViewClient(new overload());
webView.setWebViewClient(new WebViewClient() {
@Override
public void onReceivedSslError(final WebView view, final SslErrorHandler handler, final SslError error) {
handler.proceed();
}
@Override
public void onPageStarted(WebView view, String url, Bitmap favion){
super.onPageStarted(view,url,favion);
}
@Override
public void onPageFinished(final WebView view, String url) {
//show webview
findViewById(R.id.web).setVisibility(View.VISIBLE);
}
});
webView.loadUrl(url);
// webView.loadUrl("https://192.168.0.186:8443/");//wifi
// webView.loadUrl("https://192.168.1.6:8443/");//Ethernet
webView.getSettings().setRenderPriority(WebSettings.RenderPriority.HIGH);
WebSettings webSettings = webView.getSettings();
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN) {
webSettings.setAllowUniversalAccessFromFileURLs(true);
}
webSettings.setAllowFileAccessFromFileURLs(true);
webSettings.setJavaScriptEnabled(true);
webView.setLongClickable(true);
webSettings.setLoadWithOverviewMode(true);
}
public class overload extends WebViewClient{
@Override
public boolean shouldOverrideUrlLoading(WebView view, String url) {
view.loadUrl(url);
return true;
}
}
/**--------------------------------------------print--------------------------------------------------**/
private void doWebViewPrint() {
// Create a WebView object specifically for printing
WebView webView = new WebView(MainActivity.this);
webView.setWebViewClient(new WebViewClient() {
public boolean shouldOverrideUrlLoading(WebView view, String url) {
return false;
}
@Override
public void onPageFinished(WebView view, String url) {
Log.i(TAG, "page finished loading " + url);
createWebPrintJob(view);
mWebView = null;
}
});
// Generate an HTML document on the fly:
String htmlDocument = "<html><body><h1>Test Content</h1><p>Testing, " +
"testing, testing...</p></body></html>";
webView.loadDataWithBaseURL(null, htmlDocument, "text/HTML", "UTF-8", null);
// Keep a reference to WebView object until you pass the PrintDocumentAdapter
// to the PrintManager
mWebView = webView;
}
@TargetApi(Build.VERSION_CODES.LOLLIPOP)
private void createWebPrintJob(WebView webView) {
// Get a PrintManager instance
PrintManager printManager = (PrintManager) MainActivity.this
.getSystemService(Context.PRINT_SERVICE);
String jobName = getString(R.string.app_name) + " Document";
// Get a print adapter instance
PrintDocumentAdapter printAdapter = webView.createPrintDocumentAdapter(jobName);
// Create a print job with name and adapter instance
PrintJob printJob = printManager.print(jobName, printAdapter,
new PrintAttributes.Builder().build());
// Save the job object for later status checking
ArrayList<PrintJob> printJobs = new ArrayList<PrintJob>();
printJobs.add(printJob);
}
/**--------------------------------------------print--------------------------------------------------**/
@Override
public void onBackPressed()
{
if (webView.canGoBack()){webView.goBack();}
else{
new AlertDialog.Builder(MainActivity.this, R.style.AlertDialogStyle)
.setMessage("Are you sure you want to exit?")
.setCancelable(false)
.setPositiveButton("Yes", new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int id) {
MainActivity.this.finish();
}
})
.setNegativeButton("No", null)
.show();
// super.onBackPressed();
}
}
}
