Use primary color for navigation bar

app/src/main/java/com/todoroo/andlib/utility/AndroidUtilities.java

@@ -8,6 +8,8 @@ package com.todoroo.andlib.utility;
 import android.app.Activity;
 import android.content.Context;
 import android.os.Build;
+import android.os.Build.VERSION;
+import android.os.Build.VERSION_CODES;
 import android.text.InputType;
 import android.util.DisplayMetrics;
 import android.view.View;
@@ -195,6 +197,10 @@ public class AndroidUtilities {
     return Build.VERSION.SDK_INT >= Build.VERSION_CODES.M;
   }
 
+  public static boolean atLeastOreoMR1() {
+    return VERSION.SDK_INT >= VERSION_CODES.O_MR1;
+  }
+
   public static boolean atLeastNougat() {
     return Build.VERSION.SDK_INT >= Build.VERSION_CODES.N;
   }

app/src/main/java/com/todoroo/astrid/activity/MainActivity.java

@@ -260,6 +260,7 @@ public class MainActivity extends InjectingAppCompatActivity
     ThemeColor filterColor = getFilterColor();
 
     filterColor.applyToStatusBar(drawerLayout);
+    filterColor.applyToNavigationBar(this);
     filterColor.applyTaskDescription(this, filter.listingTitle);
     theme.withThemeColor(filterColor).applyToContext(this);
   }

app/src/main/java/org/tasks/activities/GoogleTaskListSettingsActivity.java

@@ -321,6 +321,6 @@ public class GoogleTaskListSettingsActivity extends ThemedInjectingAppCompatActi
       color.setText(themeColor.getName());
     }
     themeColor.apply(toolbar);
-    themeColor.applyToStatusBar(this);
+    themeColor.applyToSystemBars(this);
   }
 }

app/src/main/java/org/tasks/activities/TagSettingsActivity.java

@@ -281,7 +281,7 @@ public class TagSettingsActivity extends ThemedInjectingAppCompatActivity
       color.setText(themeColor.getName());
     }
     themeColor.apply(toolbar);
-    themeColor.applyToStatusBar(this);
+    themeColor.applyToSystemBars(this);
   }
 
   @Override

app/src/main/java/org/tasks/caldav/CaldavCalendarSettingsActivity.java

@@ -336,7 +336,7 @@ public class CaldavCalendarSettingsActivity extends ThemedInjectingAppCompatActi
       color.setText(themeColor.getName());
     }
     themeColor.apply(toolbar);
-    themeColor.applyToStatusBar(this);
+    themeColor.applyToSystemBars(this);
   }
 
   @Override

app/src/main/java/org/tasks/themes/Theme.java

@@ -54,7 +54,7 @@ public class Theme {
   }
 
   public void applyStatusBarColor(Activity activity) {
-    themeColor.applyToStatusBar(activity);
+    themeColor.applyToSystemBars(activity);
     themeColor.applyTaskDescription(activity, activity.getString(R.string.app_name));
   }
 

app/src/main/java/org/tasks/themes/ThemeColor.java

@@ -2,6 +2,7 @@ package org.tasks.themes;
 
 import static com.todoroo.andlib.utility.AndroidUtilities.atLeastLollipop;
 import static com.todoroo.andlib.utility.AndroidUtilities.atLeastMarshmallow;
+import static com.todoroo.andlib.utility.AndroidUtilities.atLeastOreoMR1;
 
 import android.annotation.SuppressLint;
 import android.annotation.TargetApi;
@@ -9,6 +10,7 @@ import android.app.Activity;
 import android.app.ActivityManager;
 import android.content.res.Resources;
 import android.os.Build;
+import android.os.Build.VERSION_CODES;
 import android.os.Parcel;
 import androidx.drawerlayout.widget.DrawerLayout;
 import androidx.appcompat.widget.Toolbar;
@@ -140,7 +142,7 @@ public class ThemeColor implements ColorPickerDialog.Pickable {
   }
 
   @SuppressLint("NewApi")
-  public void applyToStatusBar(Activity activity) {
+  public void applyToSystemBars(Activity activity) {
     setStatusBarColor(activity);
 
     if (atLeastMarshmallow()) {
@@ -148,6 +150,8 @@ public class ThemeColor implements ColorPickerDialog.Pickable {
       int systemUiVisibility = applyLightStatusBarFlag(decorView.getSystemUiVisibility());
       decorView.setSystemUiVisibility(systemUiVisibility);
     }
+
+    applyToNavigationBar(activity);
   }
 
   @SuppressLint("NewApi")
@@ -168,6 +172,16 @@ public class ThemeColor implements ColorPickerDialog.Pickable {
     }
   }
 
+  public void applyToNavigationBar(Activity activity) {
+    if (atLeastOreoMR1()) {
+      activity.getWindow().setNavigationBarColor(getPrimaryColor());
+
+      View decorView = activity.getWindow().getDecorView();
+      int systemUiVisibility = applyLightNavigationBar(decorView.getSystemUiVisibility());
+      decorView.setSystemUiVisibility(systemUiVisibility);
+    }
+  }
+
   @TargetApi(Build.VERSION_CODES.M)
   private int applyLightStatusBarFlag(int flag) {
     return isDark
@@ -175,6 +189,13 @@ public class ThemeColor implements ColorPickerDialog.Pickable {
         : flag & ~View.SYSTEM_UI_FLAG_LIGHT_STATUS_BAR;
   }
 
+  @TargetApi(VERSION_CODES.O_MR1)
+  private int applyLightNavigationBar(int flag) {
+    return isDark
+        ? flag | View.SYSTEM_UI_FLAG_LIGHT_NAVIGATION_BAR
+        : flag & ~View.SYSTEM_UI_FLAG_LIGHT_NAVIGATION_BAR;
+  }
+
   public void applyStyle(Resources.Theme theme) {
     theme.applyStyle(style, true);
   }

app/src/main/java/org/tasks/widget/ShortcutConfigActivity.java

@@ -158,7 +158,7 @@ public class ShortcutConfigActivity extends InjectingAppCompatActivity {
     ThemeColor color = themeCache.getThemeColor(getThemeIndex());
     shortcutColor.setText(color.getName());
     color.apply(toolbar);
-    color.applyToStatusBar(this);
+    color.applyToSystemBars(this);
   }
 
   private int getThemeIndex() {