Add theme switch

app/src/main/java/com/hippo/ehviewer/ui/MainActivity.java

@@ -16,7 +16,6 @@
 
 package com.hippo.ehviewer.ui;
 
-import android.Manifest;
 import android.content.ClipData;
 import android.content.ClipboardManager;
 import android.content.Context;
@@ -39,13 +38,14 @@ import androidx.annotation.IdRes;
 import androidx.annotation.NonNull;
 import androidx.annotation.Nullable;
 import androidx.annotation.StringRes;
-import androidx.appcompat.app.AlertDialog;
+import androidx.appcompat.app.AppCompatDelegate;
 import androidx.drawerlayout.widget.DrawerLayout;
 
 import com.google.android.material.dialog.MaterialAlertDialogBuilder;
 import com.google.android.material.navigation.NavigationView;
 import com.google.android.material.snackbar.Snackbar;
 import com.hippo.ehviewer.AppConfig;
+import com.hippo.ehviewer.EhApplication;
 import com.hippo.ehviewer.R;
 import com.hippo.ehviewer.Settings;
 import com.hippo.ehviewer.client.EhTagDatabase;
@@ -82,7 +82,6 @@ import com.hippo.scene.SceneFragment;
 import com.hippo.scene.StageActivity;
 import com.hippo.unifile.UniFile;
 import com.hippo.util.BitmapUtils;
-import com.hippo.util.PermissionRequester;
 import com.hippo.widget.LoadImageView;
 import com.hippo.yorozuya.IOUtils;
 import com.hippo.yorozuya.SimpleHandler;
@@ -321,7 +320,12 @@ public final class MainActivity extends StageActivity
         View headerLayout = mNavView.getHeaderView(0);
         mAvatar = (LoadImageView) ViewUtils.$$(headerLayout, R.id.avatar);
         mDisplayName = (TextView) ViewUtils.$$(headerLayout, R.id.display_name);
-
+        ViewUtils.$$(headerLayout, R.id.night_mode).setOnClickListener(v -> {
+            int theme = isNightMode(getResources().getConfiguration()) ? AppCompatDelegate.MODE_NIGHT_NO : AppCompatDelegate.MODE_NIGHT_YES;
+            AppCompatDelegate.setDefaultNightMode(theme);
+            ((EhApplication) getApplication()).recreate();
+            Settings.putTheme(theme);
+        });
         updateProfile();
 
         if (mNavView != null) {

app/src/main/res/drawable/ic_baseline_brightness_2_24.xml

@@ -0,0 +1,10 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="24dp"
+    android:height="24dp"
+    android:tint="#FFFFFF"
+    android:viewportWidth="24"
+    android:viewportHeight="24">
+    <path
+        android:fillColor="@android:color/white"
+        android:pathData="M10,2c-1.82,0 -3.53,0.5 -5,1.35C7.99,5.08 10,8.3 10,12s-2.01,6.92 -5,8.65C6.47,21.5 8.18,22 10,22c5.52,0 10,-4.48 10,-10S15.52,2 10,2z" />
+</vector>

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

@@ -15,14 +15,17 @@
   -->
 
 <FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
     android:layout_width="match_parent"
     android:layout_height="160dp"
+    android:drawSelectorOnTop="true"
     android:orientation="vertical">
 
     <ImageView
         android:layout_width="match_parent"
         android:layout_height="match_parent"
         android:contentDescription="@null"
+        android:drawSelectorOnTop="true"
         android:scaleType="centerCrop"
         android:src="@drawable/sadpanda_low_poly" />
 
@@ -44,4 +47,23 @@
         android:textColor="@android:color/white"
         android:textSize="@dimen/text_small" />
 
+    <FrameLayout
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_gravity="bottom|end"
+        android:background="@android:color/transparent"
+        android:clipToPadding="false"
+        android:padding="8dp">
+
+        <ImageView
+            android:id="@+id/night_mode"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:background="?selectableItemBackgroundBorderless"
+            android:clickable="true"
+            android:focusable="true"
+            android:padding="8dp"
+            app:srcCompat="@drawable/ic_baseline_brightness_2_24" />
+    </FrameLayout>
+
 </FrameLayout>