我尝试在WebAppInterface上清除WebView中的所有历史记录,但并不清楚。
码:-
wvList = (WebView) view.findViewById(R.id.wv);
wvList .setHorizontalScrollBarEnabled(false);
wvList .getSettings().setJavaScriptEnabled(true);
wvList .getSettings().setDomStorageEnabled(true);
wvList .addJavascriptInterface(new WebAppInterface(mContext), "Android");
wvList .setWebViewClient(new WebViewClient() {
@Override
public boolean shouldOverrideUrlLoading(WebView view, WebResourceRequest request) {
view.loadUrl(request.getUrl().toString());
return false;
}
});
public class WebAppInterface {
Context mContext;
/**
* Instantiate the interface and set the context
*/
WebAppInterface(Context cxt) {
mContext = cxt;
}
/**
* Show a SnackBar from the web page
*/
@JavascriptInterface
public void showMessage(String msg) {
wvList .post(new Runnable() {
@Override
public void run() {
wvList .clearHistory();// Not working
wvList .loadURL(url.toString);
}
});
}
}
仅在showMessage中,我想清除Webview的所有历史记录,以便在向后按时不会转到上一页。
最佳答案
尝试在WebViewClient中重写此功能
@Override
public void doUpdateVisitedHistory(WebView view, String url, boolean isReload) {
super.doUpdateVisitedHistory(view, url, isReload);
if (needClearHistory) {
needClearHistory = false;
webview.clearHistory();
}
}