Meshtastic-Android/app/src/main/java/com/geeksville/mesh/android/ContextServices.kt
2022-08-25 20:50:55 -03:00

138 lines
4.7 KiB
Kotlin

package com.geeksville.mesh.android
import android.Manifest
import android.app.NotificationManager
import android.bluetooth.BluetoothManager
import android.companion.CompanionDeviceManager
import android.content.Context
import android.content.pm.PackageManager
import android.hardware.usb.UsbManager
import android.os.Build
import androidx.core.content.ContextCompat
import com.geeksville.android.GeeksvilleApplication
import com.geeksville.mesh.MainActivity
/**
* @return null on platforms without a BlueTooth driver (i.e. the emulator)
*/
val Context.bluetoothManager: BluetoothManager? get() = getSystemService(Context.BLUETOOTH_SERVICE) as? BluetoothManager?
val Context.deviceManager: CompanionDeviceManager?
get() {
if (GeeksvilleApplication.currentActivity is MainActivity) {
val activity = GeeksvilleApplication.currentActivity
if (hasCompanionDeviceApi()) return activity?.getSystemService(Context.COMPANION_DEVICE_SERVICE) as? CompanionDeviceManager?
}
return null
}
val Context.usbManager: UsbManager get() = requireNotNull(getSystemService(Context.USB_SERVICE) as? UsbManager?) { "USB_SERVICE is not available"}
val Context.notificationManager: NotificationManager get() = requireNotNull(getSystemService(Context.NOTIFICATION_SERVICE) as? NotificationManager?)
/**
* @return true if CompanionDeviceManager API is present
*/
fun Context.hasCompanionDeviceApi(): Boolean =
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O)
packageManager.hasSystemFeature(PackageManager.FEATURE_COMPANION_DEVICE_SETUP)
else false
/**
* @return true if the device has a GPS receiver
*/
fun Context.hasGps(): Boolean =
packageManager.hasSystemFeature(PackageManager.FEATURE_LOCATION_GPS)
/**
* return a list of the permissions we don't have
*/
fun Context.getMissingPermissions(perms: List<String>): Array<String> = perms.filter {
ContextCompat.checkSelfPermission(
this,
it
) != PackageManager.PERMISSION_GRANTED
}.toTypedArray()
/**
* Bluetooth connect permissions (or empty if we already have what we need)
*/
fun Context.getConnectPermissions(): Array<String> {
val perms = mutableListOf<String>()
/* TODO - wait for targetSdkVersion 31
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.S) {
perms.add(Manifest.permission.BLUETOOTH_CONNECT)
} else {
perms.add(Manifest.permission.BLUETOOTH)
}
*/
return getMissingPermissions(perms)
}
/** @return true if the user already has Bluetooth connect permission */
fun Context.hasConnectPermission() = getConnectPermissions().isEmpty()
/**
* Bluetooth scan/discovery permissions (or empty if we already have what we need)
*/
fun Context.getScanPermissions(): Array<String> {
val perms = mutableListOf<String>()
/* TODO - wait for targetSdkVersion 31
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.S) {
perms.add(Manifest.permission.BLUETOOTH_SCAN)
} else if (!BluetoothInterface.hasCompanionDeviceApi(this)) {
perms.add(Manifest.permission.ACCESS_FINE_LOCATION)
perms.add(Manifest.permission.BLUETOOTH_ADMIN)
}
*/
if (!hasCompanionDeviceApi()) {
perms.add(Manifest.permission.ACCESS_FINE_LOCATION)
perms.add(Manifest.permission.BLUETOOTH_ADMIN)
}
return getMissingPermissions(perms)
}
/** @return true if the user already has Bluetooth scan/discovery permission */
fun Context.hasScanPermission() = getScanPermissions().isEmpty()
/**
* Camera permission (or empty if we already have what we need)
*/
fun Context.getCameraPermissions(): Array<String> {
val perms = mutableListOf(Manifest.permission.CAMERA)
return getMissingPermissions(perms)
}
/** @return true if the user already has camera permission */
fun Context.hasCameraPermission() = getCameraPermissions().isEmpty()
/**
* Location permission (or empty if we already have what we need)
*/
fun Context.getLocationPermissions(): Array<String> {
val perms = mutableListOf(Manifest.permission.ACCESS_FINE_LOCATION)
return getMissingPermissions(perms)
}
/** @return true if the user already has location permission */
fun Context.hasLocationPermission() = getLocationPermissions().isEmpty()
/**
* A list of missing background location permissions (or empty if we already have what we need)
*/
fun Context.getBackgroundPermissions(): Array<String> {
val perms = mutableListOf(Manifest.permission.ACCESS_FINE_LOCATION)
if (Build.VERSION.SDK_INT >= 29) // only added later
perms.add(Manifest.permission.ACCESS_BACKGROUND_LOCATION)
return getMissingPermissions(perms)
}
/** @return true if the user already has background location permission */
fun Context.hasBackgroundPermission() = getBackgroundPermissions().isEmpty()