- - Know where you approximately are.
- - Know exactly where you are. It uses GPS.
- - Know what access (wifi, 3G…) you have at every moment.
- - Access information about Wi-Fi networks.
- - Broadcast sticky intents, thus allowing quick data retrieval held by the system.
- - Change network connectivity state.
- - Enter Wi-Fi Multicast mode.
- - Change Wi-Fi connectivity state.
- - Disable the keyguard.
- - Send and receive internet info.
- - Modify audio settings.
- - Mount and unmount file systems for removable storage.
- - android.permission.READ_EXTERNAL_STORAGE
- - Read phone state. Used to know whether you're in a call or not.
- - Know if the system has finished booting.
- - Use the vibrator.
- - Prevent your device from sleeping or screen from dimming (turn brightness down).
- - Write whatever to your SD card.
- - Read or write the system settings.
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