Add support for disabling LeakCanary notifications

build.gradle

@@ -3,7 +3,7 @@ import org.jetbrains.dokka.gradle.DokkaTask
 buildscript {
   ext.versions = [
     'minSdk'    : 14,
-    'compileSdk': 31,
+    'compileSdk': 33,
   ]
   repositories {
     google()

leakcanary-android-core/api/leakcanary-android-core.api

@@ -94,14 +94,15 @@ public final class leakcanary/LeakCanary {
 
 public final class leakcanary/LeakCanary$Config {
 	public fun <init> ()V
-	public fun <init> (ZZILjava/util/List;Ljava/util/List;Lleakcanary/OnHeapAnalyzedListener;Lshark/MetadataExtractor;ZIZLshark/LeakingObjectFinder;Lleakcanary/HeapDumper;Ljava/util/List;Z)V
-	public synthetic fun <init> (ZZILjava/util/List;Ljava/util/List;Lleakcanary/OnHeapAnalyzedListener;Lshark/MetadataExtractor;ZIZLshark/LeakingObjectFinder;Lleakcanary/HeapDumper;Ljava/util/List;ZILkotlin/jvm/internal/DefaultConstructorMarker;)V
+	public fun <init> (ZZILjava/util/List;Ljava/util/List;Lleakcanary/OnHeapAnalyzedListener;Lshark/MetadataExtractor;ZIZLshark/LeakingObjectFinder;Lleakcanary/HeapDumper;Ljava/util/List;ZZ)V
+	public synthetic fun <init> (ZZILjava/util/List;Ljava/util/List;Lleakcanary/OnHeapAnalyzedListener;Lshark/MetadataExtractor;ZIZLshark/LeakingObjectFinder;Lleakcanary/HeapDumper;Ljava/util/List;ZZILkotlin/jvm/internal/DefaultConstructorMarker;)V
 	public final fun component1 ()Z
 	public final fun component10 ()Z
 	public final fun component11 ()Lshark/LeakingObjectFinder;
 	public final fun component12 ()Lleakcanary/HeapDumper;
 	public final fun component13 ()Ljava/util/List;
 	public final fun component14 ()Z
+	public final fun component15 ()Z
 	public final fun component2 ()Z
 	public final fun component3 ()I
 	public final fun component4 ()Ljava/util/List;
@@ -110,8 +111,8 @@ public final class leakcanary/LeakCanary$Config {
 	public final fun component7 ()Lshark/MetadataExtractor;
 	public final fun component8 ()Z
 	public final fun component9 ()I
-	public final fun copy (ZZILjava/util/List;Ljava/util/List;Lleakcanary/OnHeapAnalyzedListener;Lshark/MetadataExtractor;ZIZLshark/LeakingObjectFinder;Lleakcanary/HeapDumper;Ljava/util/List;Z)Lleakcanary/LeakCanary$Config;
-	public static synthetic fun copy$default (Lleakcanary/LeakCanary$Config;ZZILjava/util/List;Ljava/util/List;Lleakcanary/OnHeapAnalyzedListener;Lshark/MetadataExtractor;ZIZLshark/LeakingObjectFinder;Lleakcanary/HeapDumper;Ljava/util/List;ZILjava/lang/Object;)Lleakcanary/LeakCanary$Config;
+	public final fun copy (ZZILjava/util/List;Ljava/util/List;Lleakcanary/OnHeapAnalyzedListener;Lshark/MetadataExtractor;ZIZLshark/LeakingObjectFinder;Lleakcanary/HeapDumper;Ljava/util/List;ZZ)Lleakcanary/LeakCanary$Config;
+	public static synthetic fun copy$default (Lleakcanary/LeakCanary$Config;ZZILjava/util/List;Ljava/util/List;Lleakcanary/OnHeapAnalyzedListener;Lshark/MetadataExtractor;ZIZLshark/LeakingObjectFinder;Lleakcanary/HeapDumper;Ljava/util/List;ZZILjava/lang/Object;)Lleakcanary/LeakCanary$Config;
 	public fun equals (Ljava/lang/Object;)Z
 	public final fun getComputeRetainedHeapSize ()Z
 	public final fun getDumpHeap ()Z
@@ -126,6 +127,7 @@ public final class leakcanary/LeakCanary$Config {
 	public final fun getReferenceMatchers ()Ljava/util/List;
 	public final fun getRequestWriteExternalStoragePermission ()Z
 	public final fun getRetainedVisibleThreshold ()I
+	public final fun getShowNotifications ()Z
 	public final fun getUseExperimentalLeakFinders ()Z
 	public fun hashCode ()I
 	public final fun newBuilder ()Lleakcanary/LeakCanary$Config$Builder;
@@ -147,6 +149,7 @@ public final class leakcanary/LeakCanary$Config$Builder {
 	public final fun referenceMatchers (Ljava/util/List;)Lleakcanary/LeakCanary$Config$Builder;
 	public final fun requestWriteExternalStoragePermission (Z)Lleakcanary/LeakCanary$Config$Builder;
 	public final fun retainedVisibleThreshold (I)Lleakcanary/LeakCanary$Config$Builder;
+	public final fun showNotifications (Z)Lleakcanary/LeakCanary$Config$Builder;
 	public final fun useExperimentalLeakFinders (Z)Lleakcanary/LeakCanary$Config$Builder;
 }
 

leakcanary-android-core/src/main/AndroidManifest.xml

@@ -22,8 +22,9 @@
   <!-- To store the heap dumps and leak analysis results. -->
   <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE"/>
   <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
-  <!-- To allow starting foreground services on Android P+ - https://developer.android.com/preview/behavior-changes#fg-svc -->
-  <uses-permission android:name="android.permission.FOREGROUND_SERVICE"/>
+
+  <!-- To allow posting notifications on Android 13 -->
+  <uses-permission android:name="android.permission.POST_NOTIFICATIONS"/>
 
   <application>
     <provider
@@ -92,7 +93,7 @@
     </activity-alias>
 
     <activity
-        android:name="leakcanary.internal.RequestStoragePermissionActivity"
+        android:name="leakcanary.internal.RequestPermissionActivity"
         android:excludeFromRecents="true"
         android:icon="@mipmap/leak_canary_icon"
         android:label="@string/leak_canary_storage_permission_activity_label"

leakcanary-android-core/src/main/java/leakcanary/LeakCanary.kt

@@ -208,6 +208,15 @@ object LeakCanary {
       }
     ),
 
+    /**
+     * Whether to show LeakCanary notifications. When [showNotifications] is true, LeakCanary
+     * will only display notifications if the app is in foreground and is not an instant, TV or
+     * Wear app.
+     *
+     * Defaults to true.
+     */
+    val showNotifications: Boolean = true,
+
     /**
      * Deprecated: This is a no-op, set a custom [leakingObjectFinder] instead.
      */
@@ -256,6 +265,7 @@ object LeakCanary {
       private var heapDumper = config.heapDumper
       private var eventListeners = config.eventListeners
       private var useExperimentalLeakFinders = config.useExperimentalLeakFinders
+      private var showNotifications = config.showNotifications
 
       /** @see [LeakCanary.Config.dumpHeap] */
       fun dumpHeap(dumpHeap: Boolean) =
@@ -315,6 +325,11 @@ object LeakCanary {
       fun useExperimentalLeakFinders(useExperimentalLeakFinders: Boolean) =
         apply { this.useExperimentalLeakFinders = useExperimentalLeakFinders }
 
+      /** @see [LeakCanary.Config.showNotifications] */
+      fun showNotifications(showNotifications: Boolean) =
+        apply { this.showNotifications = showNotifications }
+
+
       fun build() = config.copy(
         dumpHeap = dumpHeap,
         dumpHeapWhenDebugging = dumpHeapWhenDebugging,
@@ -329,7 +344,8 @@ object LeakCanary {
         leakingObjectFinder = leakingObjectFinder,
         heapDumper = heapDumper,
         eventListeners = eventListeners,
-        useExperimentalLeakFinders = useExperimentalLeakFinders
+        useExperimentalLeakFinders = useExperimentalLeakFinders,
+        showNotifications = showNotifications,
       )
     }
   }

leakcanary-android-core/src/main/java/leakcanary/internal/LeakDirectoryProvider.kt

@@ -111,12 +111,13 @@ internal class LeakDirectoryProvider constructor(
   }
 
   fun requestWritePermissionNotification() {
-    if (permissionNotificationDisplayed) {
+    if (permissionNotificationDisplayed || !Notifications.canShowNotification) {
       return
     }
     permissionNotificationDisplayed = true
 
-    val pendingIntent = RequestStoragePermissionActivity.createPendingIntent(context)
+    val pendingIntent =
+      RequestPermissionActivity.createPendingIntent(context, WRITE_EXTERNAL_STORAGE)
     val contentTitle = context.getString(
       R.string.leak_canary_permission_notification_title
     )

leakcanary-android-core/src/main/java/leakcanary/internal/Notifications.kt

@@ -15,6 +15,7 @@
  */
 package leakcanary.internal
 
+import android.Manifest.permission.POST_NOTIFICATIONS
 import android.app.Notification
 import android.app.NotificationChannel
 import android.app.NotificationManager
@@ -24,17 +25,57 @@ import android.os.Build.VERSION.SDK_INT
 import android.os.Build.VERSION_CODES.JELLY_BEAN
 import android.os.Build.VERSION_CODES.O
 import com.squareup.leakcanary.core.R
+import leakcanary.LeakCanary
 import leakcanary.internal.InternalLeakCanary.FormFactor.MOBILE
+import shark.SharkLog
 
 internal object Notifications {
 
+  private var notificationPermissionRequested = false
+
   // Instant apps cannot show background notifications
   // See https://github.com/square/leakcanary/issues/1197
   // TV devices can't show notifications.
   // Watch devices: not sure, but probably not a good idea anyway?
   val canShowNotification: Boolean
-    get() = InternalLeakCanary.formFactor == MOBILE &&
-      (!InternalLeakCanary.isInstantApp || InternalLeakCanary.applicationVisible)
+    get() {
+      if (InternalLeakCanary.formFactor != MOBILE) {
+        return false
+      }
+      if (InternalLeakCanary.isInstantApp || !InternalLeakCanary.applicationVisible) {
+        return false
+      }
+      if (!LeakCanary.config.showNotifications) {
+        return false
+      }
+      if (SDK_INT >= 33) {
+        val application = InternalLeakCanary.application
+        if (application.applicationInfo.targetSdkVersion >= 33) {
+          val notificationManager =
+            application.getSystemService(Context.NOTIFICATION_SERVICE) as NotificationManager
+          if (!notificationManager.areNotificationsEnabled()) {
+            if (notificationPermissionRequested) {
+              SharkLog.d { "Not showing notification: already requested missing POST_NOTIFICATIONS permission." }
+            } else {
+              SharkLog.d { "Not showing notification: requesting missing POST_NOTIFICATIONS permission." }
+              application.startActivity(
+                RequestPermissionActivity.createIntent(
+                  application,
+                  POST_NOTIFICATIONS
+                )
+              )
+              notificationPermissionRequested = true
+            }
+            return false
+          }
+          if (notificationManager.areNotificationsPaused()) {
+            SharkLog.d { "Not showing notification, notifications are paused." }
+            return false
+          }
+        }
+      }
+      return true
+    }
 
   @Suppress("LongParameterList")
   fun showNotification(

leakcanary-android-core/src/main/java/leakcanary/internal/RequestStoragePermissionActivity.kt → leakcanary-android-core/src/main/java/leakcanary/internal/RequestPermissionActivity.kt

@@ -15,7 +15,6 @@
  */
 package leakcanary.internal
 
-import android.Manifest.permission.WRITE_EXTERNAL_STORAGE
 import android.annotation.TargetApi
 import android.app.Activity
 import android.app.PendingIntent
@@ -33,17 +32,20 @@ import android.widget.Toast.LENGTH_LONG
 import com.squareup.leakcanary.core.R
 
 @TargetApi(Build.VERSION_CODES.M) //
-internal class RequestStoragePermissionActivity : Activity() {
+internal class RequestPermissionActivity : Activity() {
+
+  private val targetPermission: String
+    get() = intent.getStringExtra(TARGET_PERMISSION_EXTRA)!!
 
   override fun onCreate(savedInstanceState: Bundle?) {
     super.onCreate(savedInstanceState)
 
     if (savedInstanceState == null) {
-      if (hasStoragePermission()) {
+      if (hasTargetPermission()) {
         finish()
         return
       }
-      val permissions = arrayOf(WRITE_EXTERNAL_STORAGE)
+      val permissions = arrayOf(targetPermission)
       requestPermissions(permissions, 42)
     }
   }
@@ -53,7 +55,7 @@ internal class RequestStoragePermissionActivity : Activity() {
     permissions: Array<String>,
     grantResults: IntArray
   ) {
-    if (!hasStoragePermission()) {
+    if (!hasTargetPermission()) {
       Toast.makeText(application, R.string.leak_canary_permission_not_granted, LENGTH_LONG)
         .show()
     }
@@ -66,15 +68,22 @@ internal class RequestStoragePermissionActivity : Activity() {
     super.finish()
   }
 
-  private fun hasStoragePermission(): Boolean {
-    return checkSelfPermission(WRITE_EXTERNAL_STORAGE) == PERMISSION_GRANTED
+  private fun hasTargetPermission(): Boolean {
+    return checkSelfPermission(targetPermission) == PERMISSION_GRANTED
   }
 
   companion object {
+    private const val TARGET_PERMISSION_EXTRA = "targetPermission"
+
+    fun createIntent(context: Context, permission: String): Intent {
+      return Intent(context, RequestPermissionActivity::class.java).apply {
+        flags = FLAG_ACTIVITY_NEW_TASK or FLAG_ACTIVITY_CLEAR_TOP
+        putExtra(TARGET_PERMISSION_EXTRA, permission)
+      }
+    }
 
-    fun createPendingIntent(context: Context): PendingIntent {
-      val intent = Intent(context, RequestStoragePermissionActivity::class.java)
-      intent.flags = FLAG_ACTIVITY_NEW_TASK or FLAG_ACTIVITY_CLEAR_TOP
+    fun createPendingIntent(context: Context, permission: String): PendingIntent {
+      val intent = createIntent(context, permission)
       val flags = if (Build.VERSION.SDK_INT >= 23) {
         FLAG_UPDATE_CURRENT or FLAG_IMMUTABLE
       } else {

leakcanary-android-core/src/main/res/values/leak_canary_strings.xml

@@ -63,7 +63,7 @@
   <string name="leak_canary_delete">Delete</string>
   <string name="leak_canary_delete_all">Delete all</string>
   <string name="leak_canary_delete_all_leaks_title">Are you sure you want to delete all leaks?</string>
-  <string name="leak_canary_permission_not_granted">Please grant external storage permission, otherwise memory leaks will not be detected.</string>
+  <string name="leak_canary_permission_not_granted">Please grant requested permission, otherwise memory leak detection may not work.</string>
   <string name="leak_canary_permission_notification_title">Leak detected, need permission</string>
   <string name="leak_canary_permission_notification_text">Click to enable storage permission for %s.</string>
   <string name="leak_canary_shortcut_label">Leaks</string>