Thanks Kris - would appreciate your insights. On Jan 3, 8:43 pm, Kristopher Micinski <[email protected]> wrote: > On Fri, Dec 30, 2011 at 4:44 AM,galapogos<[email protected]> wrote: > > I'm writing an app similar to app protector - it prompts the user to > > authenticate himself when a protected app is launched. Since Android > > doesn't provide a way to use BroadcastReceiver on explicit intents, > > I'm detecting app launches by monitoring logcat. For most apps, I'm > > listening for something like "Starting activity..." and then throwing > > an intent to my own authentication activity. > > > However, there seems to be a loophole in this when a protected app A > > is launched via another App B. App A is only launched once(and hence > > will only have one "Starting activity..." entry in logcat, and if I > > switch to App B from my activity, it will re-route to App A, and this > > time, I won't be able to detect it since logcat doesn't show its > > launch. > > > An example would be package installer being a protected app, and a > > file manager launching package installer upon tapping an apk file. > > While my authentication activity is called up the first time, if I > > switch to the file manager again, it will automatically display > > package installer, and this time my app doesn't detect it. > > > I've tried a few app protector apps such as App Protector Lite and > > Smart App Protector, and they don't seem to have this problem. They > > have similar permissions as well - GET_TASKS, READ_LOGS, > > RECEIVE_BOOT_COMPLETED, and SYSTEM_ALERT_WINDOW. Does anyone know what > > can be done to solve my problem? > > > Thanks. > > Wow, you really shouldn't be able to do this without modifying the firmware! > > I'll look through the apps you mentioned and find out where they are > using those permissions, which might provide insight into what they're > doing, as I would also like to know... > > It seems pretty twisted that an app would have this capability: to get > this end result you should be rewriting the package manager or > providing a similar systems level service. > > Kris
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