From e2d636e2742f3f826f8bc4a1cab8056c05361659 Mon Sep 17 00:00:00 2001
From: akwizgran <michael@briarproject.org>
Date: Fri, 15 Jun 2018 15:14:13 +0100
Subject: [PATCH] Don't hide UI on low memory if we're in the foreground.
---
.../org/briarproject/briar/android/BriarService.java | 9 +++++++--
1 file changed, 7 insertions(+), 2 deletions(-)
diff --git a/briar-android/src/main/java/org/briarproject/briar/android/BriarService.java b/briar-android/src/main/java/org/briarproject/briar/android/BriarService.java
index b6aaad4b93..bfd2ed1563 100644
--- a/briar-android/src/main/java/org/briarproject/briar/android/BriarService.java
+++ b/briar-android/src/main/java/org/briarproject/briar/android/BriarService.java
@@ -1,5 +1,7 @@
package org.briarproject.briar.android;
+import android.app.ActivityManager;
+import android.app.ActivityManager.RunningAppProcessInfo;
import android.app.NotificationChannel;
import android.app.NotificationManager;
import android.app.PendingIntent;
@@ -30,6 +32,7 @@ import java.util.logging.Logger;
import javax.annotation.Nullable;
import javax.inject.Inject;
+import static android.app.ActivityManager.RunningAppProcessInfo.IMPORTANCE_FOREGROUND;
import static android.app.NotificationManager.IMPORTANCE_DEFAULT;
import static android.app.NotificationManager.IMPORTANCE_NONE;
import static android.app.PendingIntent.FLAG_UPDATE_CURRENT;
@@ -248,8 +251,10 @@ public class BriarService extends Service {
LOG.info("Trim memory: running low");
} else if (level == TRIM_MEMORY_RUNNING_CRITICAL) {
LOG.info("Trim memory: running critically low");
- // Clear the UI to save some memory
- hideUi();
+ // If we're not in the foreground, clear the UI to save memory
+ RunningAppProcessInfo info = new RunningAppProcessInfo();
+ ActivityManager.getMyMemoryState(info);
+ if (info.importance != IMPORTANCE_FOREGROUND) hideUi();
} else if (LOG.isLoggable(INFO)) {
LOG.info("Trim memory: unknown level " + level);
}
--
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