BaseActivity: invalidate icon cache on Android P

Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>

2 files changed, 15 insertions, 15 deletions

diff --git a/app/src/main/java/com/wireguard/android/activity/BaseActivity.java b/app/src/main/java/com/wireguard/android/activity/BaseActivity.java
index 7b6923f9..3cce412d 100644
--- a/app/src/main/java/com/wireguard/android/activity/BaseActivity.java
+++ b/app/src/main/java/com/wireguard/android/activity/BaseActivity.java
@@ -121,21 +121,20 @@ public abstract class BaseActivity extends AppCompatActivity implements Topic.Su
 
     @Override
     public void onTopicPublished(Topic topic) {
-        try {
-            Field f = getResources().getClass().getDeclaredField("mResourcesImpl");
-            f.setAccessible(true);
-            Object o = f.get(getResources());
-            f = o.getClass().getDeclaredField("mDrawableCache");
-            f.setAccessible(true);
-            o = f.get(o);
-            f = o.getClass().getSuperclass().getDeclaredField("mThemedEntries");
-            f.setAccessible(true);
-            o = f.get(o);
-            o.getClass().getMethod("clear").invoke(o);
-        } catch (Exception e) {
-            Log.e(TAG, "Failed to flush icon cache", e);
+        if (topic == Application.getComponent().getThemeChangeTopic()) {
+            try {
+                Field f = getResources().getClass().getDeclaredField("mResourcesImpl");
+                f.setAccessible(true);
+                Object o = f.get(getResources());
+                f = o.getClass().getDeclaredField("mDrawableCache");
+                f.setAccessible(true);
+                o = f.get(o);
+                o.getClass().getMethod("onConfigurationChange", int.class).invoke(o, -1);
+            } catch (Exception e) {
+                Log.e(TAG, "Failed to flush icon cache", e);
+            }
+            recreate();
         }
-        recreate();
     }
 
     @Override
diff --git a/app/src/main/java/com/wireguard/android/activity/SettingsActivity.java b/app/src/main/java/com/wireguard/android/activity/SettingsActivity.java
index ed7c5457..d7238b96 100644
--- a/app/src/main/java/com/wireguard/android/activity/SettingsActivity.java
+++ b/app/src/main/java/com/wireguard/android/activity/SettingsActivity.java
@@ -101,7 +101,8 @@ public class SettingsActivity extends AppCompatActivity implements Topic.Subscri
 
     @Override
     public void onTopicPublished(final Topic topic) {
-        recreate();
+        if (topic == Application.getComponent().getThemeChangeTopic())
+            recreate();
     }
 
     @Override