Android: View previous web page using webview

 If your are loading webpage on android webview and need to go on previously  loaded webpage on webview, then this is nice trick to go to the previous page over a webview. Just add following method in your java file. 

public boolean onKeyDown(int keyCode, KeyEvent event)
{
if (event.getAction() == KeyEvent.ACTION_DOWN)
{
switch (keyCode) {
case KeyEvent.KEYCODE_BACK:
if (mWebView.canGoBack() == true)
{
mWebView.goBack();
}
else
{
finish();
}
return true;
}

}
return super.onKeyDown(keyCode, event);
}