Added settings for notification light

app/src/main/java/eu/faircode/email/FragmentOptions.java

@@ -35,6 +35,7 @@ import androidx.annotation.Nullable;
 public class FragmentOptions extends FragmentEx {
     private CheckBox cbCompressImap;
     private CheckBox cbAvatars;
+    private CheckBox cbLight;
     private CheckBox cbDebug;
 
     @Override
@@ -47,6 +48,7 @@ public class FragmentOptions extends FragmentEx {
         // Get controls
         cbCompressImap = view.findViewById(R.id.cbCompressImap);
         cbAvatars = view.findViewById(R.id.cbAvatars);
+        cbLight = view.findViewById(R.id.cbLight);
         cbDebug = view.findViewById(R.id.cbDebug);
 
         // Wire controls
@@ -77,6 +79,14 @@ public class FragmentOptions extends FragmentEx {
             }
         });
 
+        cbLight.setChecked(prefs.getBoolean("light", false));
+        cbLight.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
+            @Override
+            public void onCheckedChanged(CompoundButton compoundButton, boolean checked) {
+                prefs.edit().putBoolean("light", checked).apply();
+            }
+        });
+
         cbDebug.setChecked(prefs.getBoolean("debug", false));
         cbDebug.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
             @Override
@@ -85,6 +95,8 @@ public class FragmentOptions extends FragmentEx {
             }
         });
 
+        cbLight.setVisibility(android.os.Build.VERSION.SDK_INT < android.os.Build.VERSION_CODES.O ? View.VISIBLE : View.GONE);
+
         return view;
     }
 }

app/src/main/java/eu/faircode/email/FragmentSetup.java

@@ -102,6 +102,7 @@ public class FragmentSetup extends FragmentEx {
     static final List<String> EXPORT_SETTINGS = Arrays.asList(
             "compress",
             "avatars",
+            "light",
             "theme"
     );
 

app/src/main/java/eu/faircode/email/ServiceSynchronize.java

@@ -26,6 +26,7 @@ import android.content.BroadcastReceiver;
 import android.content.Context;
 import android.content.Intent;
 import android.content.IntentFilter;
+import android.content.SharedPreferences;
 import android.media.RingtoneManager;
 import android.net.ConnectivityManager;
 import android.net.Network;
@@ -270,6 +271,8 @@ public class ServiceSynchronize extends LifecycleService {
     }
 
     private Notification.Builder getNotificationUnseen(List<EntityMessage> messages) {
+        SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(this);
+
         // Build pending intent
         Intent intent = new Intent(this, ActivityView.class);
         intent.setAction("unseen");
@@ -301,7 +304,13 @@ public class ServiceSynchronize extends LifecycleService {
                 .setVisibility(Notification.VISIBILITY_PUBLIC)
                 .setDeleteIntent(pid);
 
-        if (PreferenceManager.getDefaultSharedPreferences(this).getBoolean("pro", false)) {
+        if (android.os.Build.VERSION.SDK_INT < android.os.Build.VERSION_CODES.O &&
+                prefs.getBoolean("light", true)) {
+            builder.setDefaults(Notification.DEFAULT_SOUND | Notification.DEFAULT_LIGHTS);
+            builder.setLights(0xff00ff00, 1000, 1000);
+        }
+
+        if (prefs.getBoolean("pro", false)) {
             DateFormat df = SimpleDateFormat.getDateTimeInstance(SimpleDateFormat.SHORT, SimpleDateFormat.SHORT);
             StringBuilder sb = new StringBuilder();
             for (EntityMessage message : messages) {

app/src/main/res/layout/fragment_options.xml

@@ -31,6 +31,16 @@
             app:layout_constraintStart_toStartOf="parent"
             app:layout_constraintTop_toBottomOf="@id/cbCompressImap" />
 
+        <CheckBox
+            android:id="@+id/cbLight"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_marginStart="12dp"
+            android:layout_marginTop="12dp"
+            android:text="@string/title_advanced_light"
+            app:layout_constraintStart_toStartOf="parent"
+            app:layout_constraintTop_toBottomOf="@id/cbAvatars" />
+
         <CheckBox
             android:id="@+id/cbDebug"
             android:layout_width="wrap_content"
@@ -39,6 +49,6 @@
             android:layout_marginTop="12dp"
             android:text="@string/title_advanced_debug"
             app:layout_constraintStart_toStartOf="parent"
-            app:layout_constraintTop_toBottomOf="@id/cbAvatars" />
+            app:layout_constraintTop_toBottomOf="@id/cbLight" />
     </androidx.constraintlayout.widget.ConstraintLayout>
 </ScrollView>

app/src/main/res/values/strings.xml

@@ -78,6 +78,7 @@
     <string name="title_advanced">Advanced options</string>
     <string name="title_advanced_compress_imap">Compress IMAP data</string>
     <string name="title_advanced_avatars">Show contact photos</string>
+    <string name="title_advanced_light">Use notification light</string>
     <string name="title_advanced_debug">Debug</string>
 
     <string name="title_select">Select &#8230;</string>