I am currently developing a j2me application for the i290 and would like to be able to update to new midlet revisions in my application using code. The problem I am having is that one method that I know of that can do this, platformRequest(), is locked by motorola and I am not interesting in paying to sign my code.
I need a way to update the midlet via a network connection in my code without using a locked API or having to pay to do this. Any help would be appreciated.
When you say it is "locked by Motorola" what exactly do you mean? platformRequest() is definitely the usual way of upgrading a midlet on a device; are you quite sure that it doesn't work? What happens when you call it?
In my fairly extensive J2ME experience I have seen quite a few things being unexpectedly disabled to unsigned apps, but never platformRequest(). Try checking the method's return value; if it returns true you need to close the app yourself before the platformRequest() will happen (assuming it doesn't throw a SecurityException, but again I have never heard of a handset which does this).
If that fails then I guess you need to get the user to visit the upgrade URL manually through the handset's browser.
i have implemented following code to upgrade application
platformrequest("URL TO JAR FILE");
i am checking if the jad file residing on server has more value in the custom field Application-Version than the current one then the platformRequest will get called..
every thing fine
but only one problem i have installed my app in memory card and if i updateusing above mentioned technique... i m having new version installed saperately..
instead of this i want my older version application to be upgraded [replaced by newer]
in jad file ony i change the Application-Version Field rest every thing are same as the local installed appliction..
and i want my app to be replaced in memory card only.