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Add Bluetooth on/off into consideration when using Bluetooth tethering

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This commit is contained in:
Mygod
2019-03-18 19:02:50 +08:00
parent 621b6eac74
commit e112b10c55
10 changed files with 75 additions and 25 deletions
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52
mobile/src/main/java/be/mygod/vpnhotspot/manage/BluetoothTethering.kt
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@@ -1,14 +1,23 @@
package be.mygod.vpnhotspot.manage
import android.annotation.SuppressLint
import android.annotation.TargetApi
import android.bluetooth.BluetoothAdapter
import android.bluetooth.BluetoothProfile
import android.content.BroadcastReceiver
import android.content.Context
import android.content.Intent
import android.content.IntentFilter
import androidx.annotation.RequiresApi
import be.mygod.vpnhotspot.App.Companion.app
import be.mygod.vpnhotspot.net.TetheringManager
import be.mygod.vpnhotspot.util.broadcastReceiver
import be.mygod.vpnhotspot.widget.SmartSnackbar
import timber.log.Timber
class BluetoothTethering(context: Context) : BluetoothProfile.ServiceListener, AutoCloseable {
companion object {
class BluetoothTethering(context: Context, val stateListener: (Int) -> Unit) :
BluetoothProfile.ServiceListener, AutoCloseable {
companion object : BroadcastReceiver() {
/**
* PAN Profile
* From BluetoothProfile.java.
@@ -17,6 +26,42 @@ class BluetoothTethering(context: Context) : BluetoothProfile.ServiceListener, A
private val isTetheringOn by lazy @SuppressLint("PrivateApi") {
Class.forName("android.bluetooth.BluetoothPan").getDeclaredMethod("isTetheringOn")
}
private fun registerBluetoothStateListener(receiver: BroadcastReceiver) =
app.registerReceiver(receiver, IntentFilter(BluetoothAdapter.ACTION_STATE_CHANGED))
private val Intent.bluetoothState get() = getIntExtra(BluetoothAdapter.EXTRA_STATE, BluetoothAdapter.ERROR)
private var pendingCallback: TetheringManager.OnStartTetheringCallback? = null
/**
* https://android.googlesource.com/platform/packages/apps/Settings/+/b1af85d/src/com/android/settings/TetherSettings.java#215
*/
@TargetApi(24)
override fun onReceive(context: Context?, intent: Intent?) {
when (intent?.bluetoothState) {
BluetoothAdapter.STATE_ON -> {
TetheringManager.start(TetheringManager.TETHERING_BLUETOOTH, true, pendingCallback!!)
}
BluetoothAdapter.STATE_OFF, BluetoothAdapter.ERROR -> { }
else -> return // ignore transition states
}
pendingCallback = null
app.unregisterReceiver(this)
}
/**
* https://android.googlesource.com/platform/packages/apps/Settings/+/b1af85d/src/com/android/settings/TetherSettings.java#384
*/
@RequiresApi(24)
fun start(callback: TetheringManager.OnStartTetheringCallback) {
if (pendingCallback != null) return
val adapter = BluetoothAdapter.getDefaultAdapter()
if (adapter?.state == BluetoothAdapter.STATE_OFF) {
registerBluetoothStateListener(this)
pendingCallback = callback
adapter.enable()
} else TetheringManager.start(TetheringManager.TETHERING_BLUETOOTH, true, callback)
}
}
private var pan: BluetoothProfile? = null
@@ -29,6 +74,8 @@ class BluetoothTethering(context: Context) : BluetoothProfile.ServiceListener, A
isTetheringOn.invoke(pan) as Boolean
}
private val receiver = broadcastReceiver { _, intent -> stateListener(intent.bluetoothState) }
init {
try {
BluetoothAdapter.getDefaultAdapter()?.getProfileProxy(context, this, PAN)
@@ -36,6 +83,7 @@ class BluetoothTethering(context: Context) : BluetoothProfile.ServiceListener, A
Timber.w(e)
SmartSnackbar.make(e).show()
}
registerBluetoothStateListener(receiver)
}
override fun onServiceDisconnected(profile: Int) {