Unfortunately, this is what Google's own app for the upcoming Google I/O conference does if you deny it access to your contacts at startup. If you grant the pe

Unfortunately, this is what Google's own app for the upcoming Google I/O conference does if you deny it access to your contacts at startup. If you grant the permission only to deny it later, the app won't start again until you grant the permission again. https://play.google.com/store/apps/details?id=com.google.samples.apps.iosched https://play.google.com/store/apps/details?id=com.google.sam...