Though holding this permission does not have any security implications, it can have a negative impact on the user experience by increasing the amount of time it takes the system to start and allowing applications to have themselves running without the user being aware of them. If you don't request this permission, you will not receive the broadcast at that time. RECEIVE_BOOT_COMPLETED: Allows an application to receive the ACTION_BOOT_COMPLETED that is broadcast after the system finishes booting.MODIFY_AUDIO_SETTINGS: Allows an application to modify global audio settings.INTERNET: Allows applications to open network sockets.CHANGE_WIFI_STATE: Allows applications to change Wi-Fi connectivity state.CHANGE_NETWORK_STATE: Allows applications to change network connectivity state.These are broadcasts whose data is held by the system after being finished, so that clients can quickly retrieve that data without having to wait for the next broadcast. BROADCAST_STICKY: Allows an application to broadcast sticky intents.BLUETOOTH_ADMIN: Allows applications to discover and pair bluetooth devices.BLUETOOTH: Allows applications to connect to paired bluetooth devices.ACCESS_WIFI_STATE: Allows applications to access information about Wi-Fi networks.ACCESS_NETWORK_STATE: Allows applications to access information about networks.WRITE_EXTERNAL_STORAGE: Allows an application to write to external storage.SEND_SMS: Allows an application to send SMS messages.

READ_PHONE_STATE: Allows read only access to phone state, including the phone number of the device, current cellular network information, the status of any ongoing calls, and a list of any PhoneAccounts registered on the device.READ_CONTACTS: Allows an application to read the user's contacts data.READ_CALL_LOG: Allows an application to read the user's call log.

READ_CALENDAR: Allows an application to read the user's calendar data.

GET_ACCOUNTS: Allows access to the list of accounts in the Accounts Service.

CAMERA: Required to be able to access the camera device.CALL_PHONE: Allows an application to initiate a phone call without going through the Dialer user interface for the user to confirm the call.Alternatively, you might want ACCESS_COARSE_LOCATION. ACCESS_FINE_LOCATION: Allows an app to access precise location.Alternatively, you might want ACCESS_FINE_LOCATION. ACCESS_COARSE_LOCATION: Allows an app to access approximate location.

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