启动服务时如何将意图传递给服务（但仅在某些时候）

Intent intent = new Intent(this, EmpCheckinService.class);
intent.putExtra(\"singleCheckInOnly\", true);
intent.putExtra(\"locationString\", location);

startService(intent);

// This is the old onStart method that will be called on the pre-2.0
// platform.  On 2.0 or later we override onStartCommand() so this
// method will not be called.
@Override
public void onStart(Intent intent, int startId) {
    examineIntent(intent);
}

@Override
public int onStartCommand(Intent intent, int flags, int startId) {
    examineIntent(intent);
    // We want this service to continue running until it is explicitly
    // stopped, so return sticky.
    return START_STICKY;
}

private void examineIntent(Intent intent) {
    try {
        singleCheckInOnly = intent.getExtras().getBoolean(\"singleCheckInOnly\", false);
        locationString = intent.getExtras().getString(\"locationString\");
    } catch (Exception e) {
        // Don\'t need to do anything here, just prevent from crashing if the keys aren\'t found
    }
}