feat: add application password retention

app/src/main/java/info/nightscout/androidaps/MainActivity.kt

@@ -168,7 +168,6 @@ class MainActivity : NoSplashAppCompatActivity() {
 
     override fun onResume() {
         super.onResume()
-        protectionCheck.resetAuthorization()
         if (!isProtectionCheckActive) {
             isProtectionCheckActive = true
             protectionCheck.queryProtection(this, ProtectionCheck.Protection.APPLICATION, UIRunnable { isProtectionCheckActive = false },

app/src/main/java/info/nightscout/androidaps/MainApp.kt

@@ -6,6 +6,7 @@ import android.content.IntentFilter
 import android.net.ConnectivityManager
 import android.net.wifi.WifiManager
 import android.os.Build
+import androidx.lifecycle.ProcessLifecycleOwner
 import com.uber.rxdogtag.RxDogTag
 import dagger.android.AndroidInjector
 import dagger.android.DaggerApplication
@@ -35,6 +36,7 @@ import info.nightscout.androidaps.receivers.TimeDateOrTZChangeReceiver
 import info.nightscout.androidaps.services.AlarmSoundServiceHelper
 import info.nightscout.androidaps.utils.ActivityMonitor
 import info.nightscout.androidaps.utils.DateUtil
+import info.nightscout.androidaps.utils.ProcessLifecycleListener
 import info.nightscout.androidaps.utils.buildHelper.BuildHelper
 import info.nightscout.androidaps.utils.locale.LocaleHelper
 import info.nightscout.androidaps.utils.protection.PasswordCheck
@@ -70,6 +72,7 @@ class MainApp : DaggerApplication() {
     @Inject lateinit var passwordCheck: PasswordCheck
     @Inject lateinit var alarmSoundServiceHelper: AlarmSoundServiceHelper
     @Inject lateinit var notificationStore: NotificationStore
+    @Inject lateinit var processLifecycleListener: ProcessLifecycleListener
 
     override fun onCreate() {
         super.onCreate()
@@ -77,6 +80,7 @@ class MainApp : DaggerApplication() {
         RxDogTag.install()
         setRxErrorHandler()
         LocaleHelper.update(this)
+        ProcessLifecycleOwner.get().lifecycle.addObserver(processLifecycleListener)
 
         var gitRemote: String? = BuildConfig.REMOTE
         var commitHash: String? = BuildConfig.HEAD

app/src/main/java/info/nightscout/androidaps/utils/ProcessLifecycleListener.kt

@@ -0,0 +1,13 @@
+package info.nightscout.androidaps.utils
+
+import androidx.lifecycle.DefaultLifecycleObserver
+import androidx.lifecycle.LifecycleOwner
+import info.nightscout.androidaps.utils.protection.ProtectionCheck
+import javax.inject.Inject
+
+class ProcessLifecycleListener @Inject constructor(private val protectionCheck: ProtectionCheck) : DefaultLifecycleObserver {
+
+    override fun onPause(owner: LifecycleOwner) {
+        protectionCheck.resetAuthorization()
+    }
+}

app/src/main/res/xml/pref_general.xml

@@ -86,6 +86,7 @@
                 android:inputType="number"
                 android:key="@string/key_protection_timeout"
                 android:title="@string/protection_timeout_title"
+                android:summary="@string/protection_timeout_summary"
                 app:defaultValue="0"
                 validate:maxNumber="180"
                 validate:minNumber="0"

core/core_dependencies.gradle

@@ -14,6 +14,7 @@ dependencies {
     api "androidx.browser:browser:1.3.0"
     api "androidx.activity:activity-ktx:${activity_version}"
     api "androidx.lifecycle:lifecycle-runtime-ktx:$lifecycle_version"
+    api "androidx.lifecycle:lifecycle-process:$lifecycle_version"
     api 'androidx.cardview:cardview:1.0.0'
     api 'androidx.recyclerview:recyclerview:1.2.1'
     api 'androidx.gridlayout:gridlayout:1.0.0'

core/src/main/res/values/protection.xml

@@ -12,7 +12,8 @@
     <string name="application_pin">Application PIN</string>
     <string name="bolus_password">Bolus password</string>
     <string name="bolus_pin">Bolus PIN</string>
-    <string name="protection_timeout_title">Time before Bolus and Settings password / PIN expires (seconds)</string>
+    <string name="protection_timeout_title">Password and PIN retention [s]</string>
+    <string name="protection_timeout_summary">Time before the password or PIN should be entered</string>
     <string name="unlock_settings">Unlock settings</string>
     <string name="biometric">Biometric</string>
     <string name="custom_password">Custom password</string>