Fix logic of app unlock (#7569)

(cherry picked from commit 8ea05e852efd621ee987c7e45d6db64a083eeffd)

app/src/main/java/eu/kanade/tachiyomi/App.kt

@@ -52,6 +52,7 @@ import uy.kohesive.injekt.Injekt
 import uy.kohesive.injekt.api.get
 import uy.kohesive.injekt.injectLazy
 import java.security.Security
+import java.util.Date
 
 open class App : Application(), DefaultLifecycleObserver, ImageLoaderFactory {
 
@@ -148,6 +149,7 @@ open class App : Application(), DefaultLifecycleObserver, ImageLoaderFactory {
     }
 
     override fun onStop(owner: LifecycleOwner) {
+        preferences.lastAppClosed().set(Date().time)
         if (!AuthenticatorUtil.isAuthenticating && preferences.lockAppAfter().get() >= 0) {
             SecureActivityDelegate.locked = true
         }

app/src/main/java/eu/kanade/tachiyomi/data/preference/PreferencesHelper.kt

@@ -56,7 +56,7 @@ class PreferencesHelper(val context: Context) {
 
     fun lockAppAfter() = flowPrefs.getInt("lock_app_after", 0)
 
-    fun lastAppUnlock() = flowPrefs.getLong("last_app_unlock", 0)
+    fun lastAppClosed() = flowPrefs.getLong("last_app_closed", 0)
 
     fun secureScreen() = flowPrefs.getEnum("secure_screen_v2", Values.SecureScreenMode.INCOGNITO)
 

app/src/main/java/eu/kanade/tachiyomi/ui/base/delegate/SecureActivityDelegate.kt

@@ -68,6 +68,6 @@ class SecureActivityDelegateImpl : SecureActivityDelegate, DefaultLifecycleObser
     private fun isAppLocked(): Boolean {
         if (!SecureActivityDelegate.locked) return false
         return preferences.lockAppAfter().get() <= 0 ||
-            Date().time >= preferences.lastAppUnlock().get() + 60 * 1000 * preferences.lockAppAfter().get()
+            Date().time >= preferences.lastAppClosed().get() + 60 * 1000 * preferences.lockAppAfter().get()
     }
 }

app/src/main/java/eu/kanade/tachiyomi/ui/security/UnlockActivity.kt

@@ -10,7 +10,6 @@ import eu.kanade.tachiyomi.util.system.AuthenticatorUtil
 import eu.kanade.tachiyomi.util.system.AuthenticatorUtil.startAuthentication
 import eu.kanade.tachiyomi.util.system.logcat
 import logcat.LogPriority
-import java.util.Date
 
 /**
  * Blank activity with a BiometricPrompt.
@@ -39,7 +38,6 @@ class UnlockActivity : BaseActivity() {
                 ) {
                     super.onAuthenticationSucceeded(activity, result)
                     SecureActivityDelegate.locked = false
-                    preferences.lastAppUnlock().set(Date().time)
                     finish()
                 }
             },