Here is some code I use in a menu to remove an application. Hope you find it useful. In fact I've removed this menu item from the application, because it always required the device to be restarted, which meant it was actually easier for the user to delete via the Options-->Advanced Options-->Applications screen, because that automatically restarts the device. [I've yet to find a way to programatically restart the device]
private MenuItem _deleteeMenu = new MenuItem("Delete Tool", 110, 10) {
// Delete us
public void run() {
int actionCode = Dialog.ask("Confirm Deletion",
new String [] { "Continue", "Cancel" },
new int [] { 0, 1 }, 0);
if ( actionCode == 0 ) {
ApplicationDescriptor ad = ApplicationDescriptor.currentApplicationDescriptor();
int moduleHandle = ad.getModuleHandle();
int rc = CodeModuleManager.deleteModuleEx(moduleHandle, true);
String tellUserMessage = "";
if ( rc == CodeModuleManager.CMM_OK_MODULE_MARKED_FOR_DELETION ) {
tellUserMessage = "Please restart the device to remove the application";
} else
if ( rc == CodeModuleManager.CMM_OK ) {
tellUserMessage = "Deleted";
} else {
String errorString = Integer.toString(rc);
switch (rc) {
case CodeModuleManager.CMM_OK_MODULE_MARKED_FOR_DELETION:
tellUserMessage = "Will be deleted on restart";
break;
case CodeModuleManager.CMM_MODULE_IN_USE:
case CodeModuleManager.CMM_MODULE_IN_USE_BY_PERSISTENT_STORE:
tellUserMessage = "Module In Use";
break;
case CodeModuleManager.CMM_HANDLE_INVALID:
tellUserMessage = "Invalid Handle";
break;
case CodeModuleManager.CMM_MODULE_REQUIRED:
tellUserMessage = "Module Required";
break;
default:
tellUserMessage = Integer.toString(rc);
break;
}
tellUserMessage = "Error Deleting Module: " + tellUserMessage;
}
Dialog.alert(tellUserMessage);
}
}
};
Regarding updating your application, the first trick is actually determining there is an upgrade available. There are various options for this, I'll assume you choose one based on your requirements.
Once you know there is an upgrade, you could push the user into the Browser with the download page open, rather than trying to do it yourself.
if you want to do it yourself, CodeModuleManager seems to have the APIs that you would need, though you may not be able to install it (especially over the top of an existing version), without a restart.
