android - onCreate() in ContentProvider is not being called -

oncreate() method in contentprovider not being called. though when click on button, goes inside insert() method , returns java.lang.nullpointerexception. in oncreate() method have have

@override public boolean oncreate() {         log.v(tag,"inside create provider");         database = new databasesqlitemydb(getcontext());         return false; } 

log cat shows:

04-20 01:23:00.543: v/clicked(1607): clicked 04-20 01:23:00.553: v/provider(1607): inside insert 04-20 01:23:00.573: v/database(1607): created 04-20 01:23:00.573: e/pkg.onput_clicklistener(1607): java.lang.nullpointerexception 04-20 01:23:00.583: v/pkg.onput_clicklistener(1607): in exception code 

in manifest :

<provider android:name="somepkg.customcontentprovider"             android:authorities="somepkg.provider" /> 

while creating uri upon click :

{     myuri=builduri("content", "somepkg.provider");             this.putno=putno;             mcontentvalues = inittestvalues();     }         private uri builduri(string scheme, string authority) {             uri.builder uribuilder = new uri.builder();             uribuilder.authority(authority);             uribuilder.scheme(scheme);             return uribuilder.build();         } 

you need show code perform insert.

sorry rest of not targeted directly @ question, i've seen on place in code samples contentproviders.

you should not call database = new databasesqlitemydb(getcontext()); in contentprovider oncreate. reason given in sqliteopenhelper documentation getreadabledatabase , getwritabledatabase:

like getwritabledatabase, method may take long time return, should not call application main thread, including contentprovider.oncreate().

instead hold reference sqliteopenhelper instance , call getwritabledatabase/getreadabledatabase appropriate in query/insert/delete/update methods called asynchronously if using loaders.