Question

175

get the click event from webpage in my Android application

rated 0 times [ 181] [ 6] / answers: 1 / hits: 28803 / 13 Years ago, fri, may 6, 2011, 12:00:00

I'm creating a sample webpage with button..this webpage am calling in Android using webview.

now when I click the button on webpage(that is html button). I should be able to execute some codes in Android..

How to proceed?

public class web extends Activity {

    WebView mWebView;

    public void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        setContentView(R.layout.webdisplay);



        mWebView = (WebView) findViewById(R.id.webview);

        mWebView.getSettings().setJavaScriptEnabled(true);

        mWebView.loadUrl(http://localhost/test.html);

        valid = new Button(ctx);

        valid.setOnClickListener(this);

        refuse = new Button(ctx);

        refuse.setOnClickListener(this);

    }

}

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zackeryzainv

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1 Year ago

answered 13 Years ago lucianom · Accepted Answer

We can detect following HTML elements as per Android API Document.

int     ANCHOR_TYPE     HitTestResult for hitting a HTML::a tag

int     EDIT_TEXT_TYPE  HitTestResult for hitting an edit text area

int     EMAIL_TYPE  HitTestResult for hitting an email address

int     GEO_TYPE    HitTestResult for hitting a map address

int     IMAGE_ANCHOR_TYPE   HitTestResult for hitting a HTML::a tag which contains HTML::img

int     IMAGE_TYPE  HitTestResult for hitting an HTML::img tag

int     PHONE_TYPE  HitTestResult for hitting a phone number

int     SRC_ANCHOR_TYPE     HitTestResult for hitting a HTML::a tag with src=http

int     SRC_IMAGE_ANCHOR_TYPE   HitTestResult for hitting a HTML::a tag with src=http + HTML::img

int     UNKNOWN_TYPE    Default HitTestResult, where the target is unknown

I think you will be able to get all events using WebView's setOnTouchListener function.

WebView has inner class named HitTestResult.
HitTestResult class will help us to find the HTML element which press when user click on WebView.

HitTestResult class has only two method.

getExtra() : It return String. String has HTML element which is clicked by user

getType() : It return integer. It is used to identify which HTML element is clicked by user.

You can do like :

wv.setOnTouchListener(new View.OnTouchListener() {



        public boolean onTouch(View v, MotionEvent event) {

            WebView.HitTestResult hr = ((WebView)v).getHitTestResult();



            Log.i(TAG, getExtra = + hr.getExtra() + tt Type= + hr.getType());

            return false;

        }

    });

Edited :
Refer for perfect answer :
Detect click on HTML button through javascript in Android WebView