How does WebView use Localstorage in Android?

I use HTML5 in the Android Localstorage why can't I read it?

There's been a lot of searching on the Internet.

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mainWebView = (WebView)this.findViewById(R.id.mainWebView);        WebSettings settings = mainWebView.getSettings();        settings.setJavaScriptEnabled(true);        settings.setAllowFileAccess(true);         settings.setDatabaseEnabled(true);         String dir = this.getApplicationContext().getDir("database", Context.MODE_PRIVATE).getPath();           settings.setDatabasePath(dir);           settings.setDomStorageEnabled(true);        settings.setGeolocationEnabled(true);

Solution:

Mwebview.getsettings (). Setdomstorageenabled (True);
Mwebview.getsettings (). Setappcachemaxsize (1024*1024*8);
String Appcachepath = Getapplicationcontext (). Getcachedir (). GetAbsolutePath ();
Mwebview.getsettings (). Setappcachepath (Appcachepath);
Mwebview.getsettings (). Setallowfileaccess (True);

Mwebview.getsettings (). Setappcacheenabled (True);

This test is possible.

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How does WebView use Localstorage in Android?