How do I call window.openDatabase from a webView hosted in an android application?

Question

I created a native Android app that basically hosts a webView control. That webView is then used to load a page that calls window.openDatabase from JavaScript. I can succe

Answer 1

To use the database API you have to configure your WebView to accept HTML5 database calls:

WebSettings settings = webView.getSettings();  
settings.setJavaScriptEnabled(true);  
settings.setJavaScriptCanOpenWindowsAutomatically(true); 
... 
settings.setDatabaseEnabled(true);  
settings.setDatabasePath("/data/data/your.package.name/database_name");

You may also override the onExceededDatabaseQuota method of your WebChromeClient if you want to control your storage quota:

public void onExceededDatabaseQuota(String url, String
databaseIdentifier, long currentQuota, long estimatedSize, long
totalUsedQuota, WebStorage.QuotaUpdater quotaUpdater) {
                quotaUpdater.updateQuota(204801);
} 

Answer 2

This solution worked for me:

WebSettings settings = myWebView.getSettings(); 
settings.setJavaScriptEnabled(true); 
settings.setDatabaseEnabled(true); 
String databasePath = this.getApplicationContext().getDir("database", 
                       Context.MODE_PRIVATE).getPath(); 
settings.setDatabasePath(databasePath); 

Can be also found here