add two settings to configure image caching

app/src/main/AndroidManifest.xml

@@ -74,6 +74,9 @@
         <meta-data
             android:name="com.lge.support.SPLIT_WINDOW"
             android:value="true" />
+        <meta-data
+            android:name="com.dkanada.gramophone.glide.CustomGlideModule"
+            android:value="GlideModule" />
         <meta-data
             android:name="com.bumptech.glide.integration.okhttp3.OkHttpGlideModule"
             android:value="GlideModule" />

app/src/main/java/com/dkanada/gramophone/glide/CustomGlideModule.java

@@ -0,0 +1,32 @@
+package com.dkanada.gramophone.glide;
+
+import android.content.Context;
+import android.os.Environment;
+
+import com.bumptech.glide.Glide;
+import com.bumptech.glide.GlideBuilder;
+import com.bumptech.glide.load.engine.cache.DiskLruCacheFactory;
+import com.bumptech.glide.module.GlideModule;
+import com.dkanada.gramophone.App;
+import com.dkanada.gramophone.util.PreferenceUtil;
+
+import java.io.File;
+
+public class CustomGlideModule implements GlideModule {
+    @Override
+    public void applyOptions(Context context, GlideBuilder builder) {
+        builder.setDiskCache(new DiskLruCacheFactory(new DiskLruCacheFactory.CacheDirectoryGetter() {
+            @Override
+            public File getCacheDirectory() {
+                String folder = "/Gelli/images";
+                return PreferenceUtil.getInstance(App.getInstance()).getImagesExternalDirectory()
+                    ? new File(Environment.getExternalStorageDirectory() + folder)
+                    : new File(App.getInstance().getApplicationInfo().dataDir + folder);
+            }
+        }, PreferenceUtil.getInstance(App.getInstance()).getImagesCacheSize()));
+    }
+
+    @Override
+    public void registerComponents(Context context, Glide glide) {
+    }
+}

app/src/main/java/com/dkanada/gramophone/ui/activities/SettingsActivity.java

@@ -121,6 +121,7 @@ public class SettingsActivity extends AbsBaseActivity implements ColorChooserDia
             addPreferencesFromResource(R.xml.pref_now_playing_screen);
             addPreferencesFromResource(R.xml.pref_lockscreen);
             addPreferencesFromResource(R.xml.pref_audio);
+            addPreferencesFromResource(R.xml.pref_images);
         }
 
         @Nullable

app/src/main/java/com/dkanada/gramophone/util/PreferenceUtil.java

@@ -64,6 +64,9 @@ public final class PreferenceUtil {
     public static final String REMEMBER_SHUFFLE = "remember_shuffle";
     public static final String REMEMBER_QUEUE = "remember_queue";
 
+    public static final String IMAGES_CACHE_SIZE = "images_cache_size";
+    public static final String IMAGES_EXTERNAL_DIRECTORY = "images_external_directory";
+
     public static final String SLEEP_TIMER_LAST_VALUE = "sleep_timer_last_value";
     public static final String SLEEP_TIMER_ELAPSED_REALTIME = "sleep_timer_elapsed_real_time";
     public static final String SLEEP_TIMER_FINISH_SONG = "sleep_timer_finish_music";
@@ -118,6 +121,14 @@ public final class PreferenceUtil {
         return Integer.parseInt(mPreferences.getString(MAXIMUM_LIST_SIZE, "100"));
     }
 
+    public final int getImagesCacheSize() {
+        return Integer.parseInt(mPreferences.getString(IMAGES_CACHE_SIZE, "400000000"));
+    }
+
+    public final boolean getImagesExternalDirectory() {
+        return mPreferences.getBoolean(IMAGES_EXTERNAL_DIRECTORY, false);
+    }
+
     public final int getLastTab() {
         return mPreferences.getInt(LAST_TAB, 0);
     }

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

@@ -52,4 +52,20 @@
         <item>100</item>
     </string-array>
 
+    <string-array name="pref_images_cache_size_titles">
+        <item>@string/unlimited</item>
+        <item>2GB</item>
+        <item>1GB</item>
+        <item>400MB</item>
+        <item>200MB</item>
+    </string-array>
+
+    <string-array name="pref_images_cache_size_values">
+        <item>10000000000</item>
+        <item>2000000000</item>
+        <item>1000000000</item>
+        <item>400000000</item>
+        <item>200000000</item>
+    </string-array>
+
 </resources>

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

@@ -92,6 +92,7 @@
     <string name="pref_header_colors">Colors</string>
     <string name="pref_header_now_playing_screen">Now Playing</string>
     <string name="pref_header_audio">Audio</string>
+    <string name="pref_header_images">Images</string>
     <string name="pref_header_library">Library</string>
     <string name="pref_header_lockscreen">Lockscreen</string>
     <string name="pref_header_notification">Notification</string>
@@ -116,6 +117,9 @@
     <string name="pref_title_remember_shuffle">Remember Shuffle</string>
     <string name="pref_title_remember_queue">Remember Queue</string>
     <string name="pref_title_maximum_list_size">Maximum List Size</string>
+    <string name="pref_title_images_cache_size">Cache Size</string>
+    <string name="pref_title_images_external_directory">External Directory</string>
+    <string name="pref_summary_images_external_directory">Store the image cache in an external directory to keep the files between installs.</string>
     <string name="primary_color_desc">The primary theme color for control elements.</string>
     <string name="accent_color_desc">An alternate color used to accent elements.</string>
     <string name="pref_summary_album_art_on_lockscreen">Uses the current song\'s album cover as the lockscreen wallpaper.</string>

app/src/main/res/xml/pref_images.xml

@@ -0,0 +1,26 @@
+<?xml version="1.0" encoding="utf-8"?>
+<androidx.preference.PreferenceScreen xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto">
+
+    <com.kabouzeid.appthemehelper.common.prefs.supportv7.ATEPreferenceCategory android:title="@string/pref_header_images">
+
+        <com.kabouzeid.appthemehelper.common.prefs.supportv7.ATEListPreference
+            app:iconSpaceReserved="false"
+            android:defaultValue="400000000"
+            android:entries="@array/pref_images_cache_size_titles"
+            android:entryValues="@array/pref_images_cache_size_values"
+            android:key="images_cache_size"
+            android:negativeButtonText="@null"
+            android:positiveButtonText="@null"
+            android:title="@string/pref_title_images_cache_size" />
+
+        <com.kabouzeid.appthemehelper.common.prefs.supportv7.ATESwitchPreference
+            app:iconSpaceReserved="false"
+            android:defaultValue="false"
+            android:key="images_external_directory"
+            android:summary="@string/pref_summary_images_external_directory"
+            android:title="@string/pref_title_images_external_directory" />
+
+    </com.kabouzeid.appthemehelper.common.prefs.supportv7.ATEPreferenceCategory>
+
+</androidx.preference.PreferenceScreen>