Add some color to the log view

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

@@ -20,6 +20,8 @@ package eu.faircode.email;
 */
 
 import android.content.Context;
+import android.text.SpannableStringBuilder;
+import android.text.style.ForegroundColorSpan;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
@@ -45,6 +47,10 @@ public class AdapterLog extends RecyclerView.Adapter<AdapterLog.ViewHolder> {
     private LifecycleOwner owner;
     private LayoutInflater inflater;
 
+    private int textColorSecondary;
+    private int colorAccent;
+    private int colorWarning;
+
     private List<EntityLog> items = new ArrayList<>();
 
     private DateFormat TF;
@@ -62,17 +68,40 @@ public class AdapterLog extends RecyclerView.Adapter<AdapterLog.ViewHolder> {
 
         private void bindTo(EntityLog log) {
             tvTime.setText(TF.format(log.time));
-            tvData.setText(log.data);
+            SpannableStringBuilder ssb = new SpannableStringBuilder(log.data);
+            switch (log.type) {
+                case EntityLog.LOG_GENERAL:
+                    break;
+                case EntityLog.LOG_STATS:
+                    ssb.setSpan(new ForegroundColorSpan(colorAccent), 0, ssb.length(), 0);
+                    break;
+                case EntityLog.LOG_SCHEDULE:
+                    ssb.setSpan(new ForegroundColorSpan(colorWarning), 0, ssb.length(), 0);
+                    break;
+                case EntityLog.LOG_NETWORK:
+                    ssb.setSpan(new ForegroundColorSpan(colorWarning), 0, ssb.length(), 0);
+                    break;
+                case EntityLog.LOG_ACCOUNT:
+                    ssb.setSpan(new ForegroundColorSpan(colorAccent), 0, ssb.length(), 0);
+                    break;
+                case EntityLog.LOG_PROTOCOL:
+                    ssb.setSpan(new ForegroundColorSpan(textColorSecondary), 0, ssb.length(), 0);
+                    break;
+            }
+            tvData.setText(ssb);
         }
     }
 
-
     AdapterLog(Fragment parentFragment) {
         this.parentFragment = parentFragment;
         this.context = parentFragment.getContext();
         this.owner = parentFragment.getViewLifecycleOwner();
         this.inflater = LayoutInflater.from(parentFragment.getContext());
 
+        this.textColorSecondary = Helper.resolveColor(context, android.R.attr.textColorSecondary);
+        this.colorAccent = Helper.resolveColor(context, R.attr.colorAccent);
+        this.colorWarning = Helper.resolveColor(context, R.attr.colorWarning);
+
         this.TF = Helper.getTimeInstance(context);
 
         setHasStableIds(true);

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

@@ -19,6 +19,7 @@ package eu.faircode.email;
     Copyright 2018-2021 by Marcel Bokhorst (M66B)
 */
 
+import static eu.faircode.email.EntityLog.LOG_PROTOCOL;
 import static eu.faircode.email.ServiceAuthenticator.AUTH_TYPE_GMAIL;
 import static eu.faircode.email.ServiceAuthenticator.AUTH_TYPE_OAUTH;
 
@@ -576,7 +577,7 @@ public class EmailService implements AutoCloseable {
                             String line = bos.toString();
                             if (!line.endsWith("ignoring socket timeout"))
                                 if (log)
-                                    EntityLog.log(context, user + " " + line);
+                                    EntityLog.log(context, LOG_PROTOCOL, user + " " + line);
                                 else {
                                     if (BuildConfig.DEBUG)
                                         Log.i("javamail", user + " " + line);

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

@@ -64,6 +64,7 @@ public class EntityLog {
     static final int LOG_SCHEDULE = 2;
     static final int LOG_NETWORK = 3;
     static final int LOG_ACCOUNT = 4;
+    static final int LOG_PROTOCOL = 5;
 
     private static final ExecutorService executor =
             Helper.getBackgroundExecutor(1, "log");

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

@@ -10,6 +10,7 @@
         android:layout_height="wrap_content"
         android:text="12:34:56"
         android:textAppearance="@style/TextAppearance.AppCompat.Small"
+        android:textColor="?android:attr/textColorPrimary"
         app:layout_constraintStart_toStartOf="parent"
         app:layout_constraintTop_toTopOf="parent" />
 
@@ -20,6 +21,7 @@
         android:layout_marginStart="6dp"
         android:text="log"
         android:textAppearance="@android:style/TextAppearance.Small"
+        android:textColor="?android:attr/textColorPrimary"
         android:textIsSelectable="true"
         app:layout_constraintEnd_toEndOf="parent"
         app:layout_constraintStart_toEndOf="@id/tvTime"