A button in my WebView is used to go back using the history.back()JavaScript
call. I do not understand much of JavaScript, but after a bit of
searching I found that we can use the addJavascriptInterface() method of a
WebView.
I landed up having something of this sort:
public class MyActivity extends Activity {
private static final String sTag = "MyActivity";
private WebView mWebContent;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.browser_page);
mWebContent = (WebView) findViewById(R.id.webContent);
mWebContent.setWebViewClient(new BrowserClient());
mWebContent.getSettings().setJavaScriptEnabled(true);
mWebContent.getSettings().setJavaScriptCanOpenWindowsAutomatically(true);
mWebContent.getSettings().setBuiltInZoomControls(true);
mWebContent.addJavascriptInterface(new JavaScriptInterface(), "history");
//history.back();
Bundle extras = getIntent().getExtras();
if (extras != null) {
mWebContent.loadUrl(extras.getString("URL"));
}
}
public class JavaScriptInterface {
JavaScriptInterface() {
}
public void back() {
Log.v(sTag, "back pressed");
MyActivity.this.finish();
}
}
}
But unfortunately when the button is pressed the Activity doesn't finish.
Here is the html for the button :
<a href="javascript:void(0);">
<img src="images/btn-go-back.png" onClick="history.back();" border="0" />
</a>
What am I doing wrong?
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