How android lights up the screen when receiving a Bluetooth pairing request

File: javastheventloop. java
GB/GB2/GB3:
1. import android. OS. PowerManager;
2. Variable Declaration: private PowerManager. WakeLock mWakeLock;
3. Add the definition in the javastheventloop () {} constructor:
PowerManager pm = (PowerManager) context. getSystemService (Context. POWER_SERVICE );
MWakeLock = pm. newWakeLock (PowerManager. FULL_WAKE_LOCK | PowerManager. ACQUIRE_CAUSES_WAKEUP
| PowerManager. ON_AFTER_RELEASE, TAG );
MWakeLock. setReferenceCounted (false );
4. onRequestPairingConsent (){
...
MWakeLock. acquire (5000); // xintong, 5 s
Intent intent = new Intent (effecthdevice. ACTION_PAIRING_REQUEST );
...
}
5. onRequestPasskeyConfirmation (){
...
MWakeLock. acquire (5000); // xintong, 5 s
Intent intent = new Intent (effecthdevice. ACTION_PAIRING_REQUEST );
...
}
6. onRequestPasskey (){
...
MWakeLock. acquire (5000); // xintong, 5 s
Intent intent = new Intent (effecthdevice. ACTION_PAIRING_REQUEST );
...
}
7. onRequestPinCode (){
...
MWakeLock. acquire (5000); // xintong 5 s
Intent intent = new Intent (effecthdevice. ACTION_PAIRING_REQUEST );
...
}
8. onDisplayPasskey (){
...
MWakeLock. acquire (5000); // xintong, 5 s
Intent intent = new Intent (effecthdevice. ACTION_PAIRING_REQUEST );
...
}
ICS/ICS2/JB/JB2/JB3:
The steps 1st, 2, and 3 modified in GB are omitted;
In the function modified in 4, 5, 6, 7, and 8: The native mWakeLock. change acquire (); To mWakeLock. acquire (5000), delete the mWakeLock in the corresponding function. release ();
After modification, the module is compiled into framework. jar.