Android: Disable text selection in a webview
I am using a webview to present some formatted stuff in my app. For some interaction (which are specific to certain dom elements) I use javascript and WebView.addJa开发者_StackOverflow社区vascriptInterface()
. Now, I want to recognize a long touch. Unfortunately, onLongTouch
, in Android 2.3 the handles for text selection are displayed.
How can I turn off this text selection without setting the onTouchListener
and return true? (Then, the interaction with the "website" doesn't work anymore.
This worked for me
mWebView.setOnLongClickListener(new OnLongClickListener() {
@Override
public boolean onLongClick(View v) {
return true;
}
});
mWebView.setLongClickable(false);
I have not tested, if you don't want the vibration caused by the long click, you can try this:
mWebView.setHapticFeedbackEnabled(false);
Setting webkit css property -webkit-user-select
to none
would solve the problem.
Example CSS to disable selection:
* {
-webkit-user-select: none;
}
I figured it out!! This is how you can implement your own longtouchlistener. In the function longTouch you can make a call to your javascript interface.
var touching = null;
$('selector').each(function() {
this.addEventListener("touchstart", function(e) {
e.preventDefault();
touching = window.setTimeout(longTouch, 500, true);
}, false);
this.addEventListener("touchend", function(e) {
e.preventDefault();
window.clearTimeout(touching);
}, false);
});
function longTouch(e) {
// do something!
}
This works.
It appears that cut/paste via long press is turned off if you used
articleView.setWebChromeClient(new WebChromeClient(){...})
See https://bugzilla.wikimedia.org/show_bug.cgi?id=31484
So if you are using setChromeClient and you WANT to have long click to start copy/paste, the do the following:
webView.setWebChromeClient(new WebChromeClient(){
[.... other overrides....]
// @Override
// https://bugzilla.wikimedia.org/show_bug.cgi?id=31484
// If you DO NOT want to start selection by long click,
// the remove this function
// (All this is undocumented stuff...)
public void onSelectionStart(WebView view) {
// By default we cancel the selection again, thus disabling
// text selection unless the chrome client supports it.
// view.notifySelectDialogDismissed();
}
});
An alternative solution is to subclass WebView and Override performLongClick as bellow:
public class AdvanceWebView extends WebView {
//Add constructors...
@Override
public boolean performLongClick() {
return true;
}
}
It seems that the only option is to set onTouchListener
and write your own code to detect long-click. Then return true
if it's a long-click and false
otherwise.
For kotlin i found the following to work:
webView.isLongClickable = false
精彩评论