Fix deprecated lifecycle annotation.

PiperOrigin-RevId: 633951797

kotlin/admanager/AppOpenExample/app/src/main/java/com/google/android/gms/example/appopenexample/MainActivity.kt

@@ -6,6 +6,7 @@ import android.view.MenuItem
 import android.view.View
 import android.widget.PopupMenu
 import android.widget.Toast
+import androidx.activity.OnBackPressedCallback
 import androidx.appcompat.app.AppCompatActivity
 
 /** The main activity in the app. */
@@ -17,6 +18,15 @@ class MainActivity : AppCompatActivity() {
     super.onCreate(savedInstanceState)
     setContentView(R.layout.activity_main)
 
+    // Override the default implementation when the user presses the back key.
+    val onBackPressedCallback: OnBackPressedCallback =
+      object : OnBackPressedCallback(true) {
+        override fun handleOnBackPressed() {
+          moveTaskToBack(true)
+        }
+      }
+    onBackPressedDispatcher.addCallback(this, onBackPressedCallback)
+
     googleMobileAdsConsentManager = GoogleMobileAdsConsentManager.getInstance(applicationContext)
   }
 
@@ -51,11 +61,4 @@ class MainActivity : AppCompatActivity() {
       return super.onOptionsItemSelected(item)
     }
   }
-
-  /** Override the default implementation when the user presses the back key. */
-  override fun onBackPressed() {
-    // Move the task containing the MainActivity to the back of the activity stack, instead of
-    // destroying it. Therefore, MainActivity will be shown when the user switches back to the app.
-    moveTaskToBack(true)
-  }
 }

kotlin/admanager/AppOpenExample/app/src/main/java/com/google/android/gms/example/appopenexample/MyApplication.kt

@@ -6,9 +6,8 @@ import android.content.Context
 import android.os.Bundle
 import android.util.Log
 import android.widget.Toast
-import androidx.lifecycle.Lifecycle
-import androidx.lifecycle.LifecycleObserver
-import androidx.lifecycle.OnLifecycleEvent
+import androidx.lifecycle.DefaultLifecycleObserver
+import androidx.lifecycle.LifecycleOwner
 import androidx.lifecycle.ProcessLifecycleOwner
 import androidx.multidex.MultiDexApplication
 import com.google.android.gms.ads.AdError
@@ -24,24 +23,28 @@ private const val LOG_TAG = "MyApplication"
 
 /** Application class that initializes, loads and show ads when activities change states. */
 class MyApplication :
-  MultiDexApplication(), Application.ActivityLifecycleCallbacks, LifecycleObserver {
+  MultiDexApplication(), Application.ActivityLifecycleCallbacks, DefaultLifecycleObserver {
 
   private lateinit var appOpenAdManager: AppOpenAdManager
   private var currentActivity: Activity? = null
 
-  override fun onCreate() {
-    super.onCreate()
+  override fun onCreate(owner: LifecycleOwner) {
+    super<DefaultLifecycleObserver>.onCreate(owner)
     registerActivityLifecycleCallbacks(this)
 
     ProcessLifecycleOwner.get().lifecycle.addObserver(this)
     appOpenAdManager = AppOpenAdManager()
   }
 
-  /** LifecycleObserver method that shows the app open ad when the app moves to foreground. */
-  @OnLifecycleEvent(Lifecycle.Event.ON_START)
-  fun onMoveToForeground() {
-    // Show the ad (if available) when the app moves to foreground.
-    currentActivity?.let { appOpenAdManager.showAdIfAvailable(it) }
+  /**
+   * DefaultLifecycleObserver method that shows the app open ad when the app moves to foreground.
+   */
+  override fun onStart(owner: LifecycleOwner) {
+    super.onStart(owner)
+    currentActivity?.let {
+      // Show the ad (if available) when the app moves to foreground.
+      appOpenAdManager.showAdIfAvailable(it)
+    }
   }
 
   /** ActivityLifecycleCallback methods. */
@@ -151,7 +154,7 @@ class MyApplication :
             Log.d(LOG_TAG, "onAdFailedToLoad: " + loadAdError.message)
             Toast.makeText(context, "onAdFailedToLoad", Toast.LENGTH_SHORT).show()
           }
-        }
+        },
       )
     }
 
@@ -182,7 +185,7 @@ class MyApplication :
           override fun onShowAdComplete() {
             // Empty because the user will go back to the activity that shows the ad.
           }
-        }
+        },
       )
     }
 

kotlin/admanager/AppOpenExample/app/src/main/res/values/strings.xml

@@ -1,5 +1,5 @@
 <resources>
-    <string name="app_name" translatable="false">AdMob App Open Example</string>
+    <string name="app_name" translatable="false">Ad Manager App Open Example</string>
     <string name="main_activity" translatable="false">Main Activity</string>
     <string name="main_activity_text" translatable="false">
         Leave and switch back to the app to see the ad.

kotlin/admob/AppOpenExample/app/src/main/java/com/google/android/gms/example/appopenexample/MainActivity.kt

@@ -6,6 +6,7 @@ import android.view.MenuItem
 import android.view.View
 import android.widget.PopupMenu
 import android.widget.Toast
+import androidx.activity.OnBackPressedCallback
 import androidx.appcompat.app.AppCompatActivity
 
 /** The main activity in the app. */
@@ -17,6 +18,15 @@ class MainActivity : AppCompatActivity() {
     super.onCreate(savedInstanceState)
     setContentView(R.layout.activity_main)
 
+    // Override the default implementation when the user presses the back key.
+    val onBackPressedCallback: OnBackPressedCallback =
+      object : OnBackPressedCallback(true) {
+        override fun handleOnBackPressed() {
+          moveTaskToBack(true)
+        }
+      }
+    onBackPressedDispatcher.addCallback(this, onBackPressedCallback)
+
     googleMobileAdsConsentManager = GoogleMobileAdsConsentManager.getInstance(applicationContext)
   }
 
@@ -51,11 +61,4 @@ class MainActivity : AppCompatActivity() {
       return super.onOptionsItemSelected(item)
     }
   }
-
-  /** Override the default implementation when the user presses the back key. */
-  override fun onBackPressed() {
-    // Move the task containing the MainActivity to the back of the activity stack, instead of
-    // destroying it. Therefore, MainActivity will be shown when the user switches back to the app.
-    moveTaskToBack(true)
-  }
 }

kotlin/admob/AppOpenExample/app/src/main/java/com/google/android/gms/example/appopenexample/MyApplication.kt

@@ -6,9 +6,8 @@ import android.content.Context
 import android.os.Bundle
 import android.util.Log
 import android.widget.Toast
-import androidx.lifecycle.Lifecycle
-import androidx.lifecycle.LifecycleObserver
-import androidx.lifecycle.OnLifecycleEvent
+import androidx.lifecycle.DefaultLifecycleObserver
+import androidx.lifecycle.LifecycleOwner
 import androidx.lifecycle.ProcessLifecycleOwner
 import androidx.multidex.MultiDexApplication
 import com.google.android.gms.ads.AdError
@@ -24,24 +23,28 @@ private const val LOG_TAG = "MyApplication"
 
 /** Application class that initializes, loads and show ads when activities change states. */
 class MyApplication :
-  MultiDexApplication(), Application.ActivityLifecycleCallbacks, LifecycleObserver {
+  MultiDexApplication(), Application.ActivityLifecycleCallbacks, DefaultLifecycleObserver {
 
   private lateinit var appOpenAdManager: AppOpenAdManager
   private var currentActivity: Activity? = null
 
-  override fun onCreate() {
-    super.onCreate()
+  override fun onCreate(owner: LifecycleOwner) {
+    super<DefaultLifecycleObserver>.onCreate(owner)
     registerActivityLifecycleCallbacks(this)
 
     ProcessLifecycleOwner.get().lifecycle.addObserver(this)
     appOpenAdManager = AppOpenAdManager()
   }
 
-  /** LifecycleObserver method that shows the app open ad when the app moves to foreground. */
-  @OnLifecycleEvent(Lifecycle.Event.ON_START)
-  fun onMoveToForeground() {
-    // Show the ad (if available) when the app moves to foreground.
-    currentActivity?.let { appOpenAdManager.showAdIfAvailable(it) }
+  /**
+   * DefaultLifecycleObserver method that shows the app open ad when the app moves to foreground.
+   */
+  override fun onStart(owner: LifecycleOwner) {
+    super.onStart(owner)
+    currentActivity?.let {
+      // Show the ad (if available) when the app moves to foreground.
+      appOpenAdManager.showAdIfAvailable(it)
+    }
   }
 
   /** ActivityLifecycleCallback methods. */
@@ -151,7 +154,7 @@ class MyApplication :
             Log.d(LOG_TAG, "onAdFailedToLoad: " + loadAdError.message)
             Toast.makeText(context, "onAdFailedToLoad", Toast.LENGTH_SHORT).show()
           }
-        }
+        },
       )
     }
 
@@ -182,7 +185,7 @@ class MyApplication :
           override fun onShowAdComplete() {
             // Empty because the user will go back to the activity that shows the ad.
           }
-        }
+        },
       )
     }