Added font size preference.

app/src/main/java/it/niedermann/owncloud/notes/android/fragment/BaseNoteFragment.java

@@ -5,6 +5,7 @@ import android.app.Fragment;
 import android.app.FragmentManager;
 import android.app.PendingIntent;
 import android.content.Intent;
+import android.content.SharedPreferences;
 import android.content.pm.ShortcutInfo;
 import android.content.pm.ShortcutManager;
 import android.graphics.drawable.Icon;
@@ -319,6 +320,24 @@ public abstract class BaseNoteFragment extends Fragment implements CategoryDialo
         }
     }
 
+    protected float getFontSizeFromPreferences(SharedPreferences sp) {
+        final String prefValueTiny = getString(R.string.pref_value_font_size_tiny);
+        final String prefValueSmall = getString(R.string.pref_value_font_size_small);
+        final String prefValueMedium = getString(R.string.pref_value_font_size_medium);
+        final String prefValueLarge = getString(R.string.pref_value_font_size_large);
+        String fontSize = sp.getString(getString(R.string.pref_key_font_size), prefValueMedium);
+
+        if (fontSize.equals(prefValueTiny)) {
+            return getResources().getDimension(R.dimen.note_font_size_tiny);
+        } else if (fontSize.equals(prefValueSmall)) {
+            return getResources().getDimension(R.dimen.note_font_size_small);
+        } else if (fontSize.equals(prefValueMedium)) {
+            return getResources().getDimension(R.dimen.note_font_size_medium);
+        } else {
+            return getResources().getDimension(R.dimen.note_font_size_large);
+        }
+    }
+
     protected abstract String getContent();
 
     /**

app/src/main/java/it/niedermann/owncloud/notes/android/fragment/NoteEditFragment.java

@@ -10,6 +10,7 @@ import android.preference.PreferenceManager;
 import android.text.Editable;
 import android.text.TextWatcher;
 import android.util.Log;
+import android.util.TypedValue;
 import android.view.LayoutInflater;
 import android.view.Menu;
 import android.view.View;
@@ -155,6 +156,7 @@ public class NoteEditFragment extends BaseNoteFragment {
 
             editContent.setCustomSelectionActionModeCallback(new StyleCallback(this.editContent));
             SharedPreferences sp = PreferenceManager.getDefaultSharedPreferences(getActivity().getApplicationContext());
+            editContent.setTextSize(TypedValue.COMPLEX_UNIT_PX, getFontSizeFromPreferences(sp));
             if (sp.getBoolean(getString(R.string.pref_key_font), false)) {
                 editContent.setTypeface(Typeface.MONOSPACE);
             }

app/src/main/java/it/niedermann/owncloud/notes/android/fragment/NotePreviewFragment.java

@@ -6,6 +6,7 @@ import android.os.Bundle;
 import android.preference.PreferenceManager;
 import android.text.method.LinkMovementMethod;
 import android.util.Log;
+import android.util.TypedValue;
 import android.view.LayoutInflater;
 import android.view.Menu;
 import android.view.View;
@@ -100,6 +101,7 @@ public class NotePreviewFragment extends BaseNoteFragment {
         noteContent.setMovementMethod(LinkMovementMethod.getInstance());
 
         SharedPreferences sp = PreferenceManager.getDefaultSharedPreferences(getActivity().getApplicationContext());
+        noteContent.setTextSize(TypedValue.COMPLEX_UNIT_PX, getFontSizeFromPreferences(sp));
         if (sp.getBoolean(getString(R.string.pref_key_font), false)) {
             noteContent.setTypeface(Typeface.MONOSPACE);
         }

app/src/main/res/drawable/ic_format_size_black_24dp.xml

@@ -0,0 +1,5 @@
+<vector android:autoMirrored="true" android:height="24dp"
+    android:tint="#666666" android:viewportHeight="24.0"
+    android:viewportWidth="24.0" android:width="24dp" xmlns:android="http://schemas.android.com/apk/res/android">
+    <path android:fillColor="#FF000000" android:pathData="M9,4v3h5v12h3L17,7h5L22,4L9,4zM3,12h3v7h3v-7h3L12,9L3,9v3z"/>
+</vector>

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

@@ -5,4 +5,10 @@
         <item>@string/pref_value_mode_preview</item>
         <item>@string/pref_value_mode_last</item>
     </string-array>
+    <string-array name="fontSize_values">
+        <item>@string/pref_value_font_size_tiny</item>
+        <item>@string/pref_value_font_size_small</item>
+        <item>@string/pref_value_font_size_medium</item>
+        <item>@string/pref_value_font_size_large</item>
+    </string-array>
 </resources>

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

@@ -12,6 +12,12 @@
     <dimen name="primary_font_size">16sp</dimen>
     <dimen name="secondary_font_size">14sp</dimen>
 
+    <!-- Font Sizes -->
+    <dimen name="note_font_size_tiny">14sp</dimen>
+    <dimen name="note_font_size_small">16sp</dimen>
+    <dimen name="note_font_size_medium">18sp</dimen>
+    <dimen name="note_font_size_large">22sp</dimen>
+
     <!-- Widgets -->
     <dimen name="widget_margin">8dp</dimen>
     <dimen name="widget_single_note_padding">10dp</dimen>

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

@@ -56,6 +56,7 @@
     <string name="settings_note_mode">Display mode for notes</string>
     <string name="settings_theme_title">Dark theme</string>
     <string name="settings_font_title">Monospace font</string>
+    <string name="settings_font_size">Font size</string>
     <string name="settings_wifi_only">Sync only on Wi-Fi</string>
     <string name="settings_cert_category">Manage certificates</string>
     <string name="settings_cert_trust_system">Trust system certificates</string>
@@ -142,12 +143,17 @@
     <string name="pref_key_note_mode" translatable="false">noteMode</string>
     <string name="pref_key_theme" translatable="false">darkTheme</string>
     <string name="pref_key_font" translatable="false">font</string>
+    <string name="pref_key_font_size" translatable="false">fontSize</string>
     <string name="pref_key_wifi_only" translatable="false">wifiOnly</string>
     <string name="pref_key_last_note_mode" translatable="false">lastNoteMode</string>
     <string name="pref_value_mode_edit" translatable="false">edit</string>
     <string name="pref_value_mode_preview" translatable="false">preview</string>
     <string name="pref_value_mode_last" translatable="false">last</string>
     <string name="pref_value_mode_note" translatable="false">note</string>
+    <string name="pref_value_font_size_tiny" translatable="false">tiny</string>
+    <string name="pref_value_font_size_small" translatable="false">small</string>
+    <string name="pref_value_font_size_medium" translatable="false">medium</string>
+    <string name="pref_value_font_size_large" translatable="false">large</string>
     <string name="pref_value_theme_light">Light</string>
     <string name="pref_value_theme_dark">Dark</string>
     <string name="pref_value_font_normal">Normal</string>
@@ -167,6 +173,14 @@
         <item>Remember my last selection</item>
     </string-array>
 
+    <!-- Array: font size -->
+    <string-array name="fontSize_entries">
+        <item>Tiny</item>
+        <item>Small</item>
+        <item>Medium</item>
+        <item>Large</item>
+    </string-array>
+
     <!-- Plurals -->
     <plurals name="ab_selected">
         <item quantity="one">%d selected</item>

app/src/main/res/xml/preferences.xml

@@ -30,6 +30,15 @@
         android:key="@string/pref_key_font"
         android:title="@string/settings_font_title" />
 
+    <ListPreference
+        android:defaultValue="@string/pref_value_font_size_medium"
+        android:entries="@array/fontSize_entries"
+        android:entryValues="@array/fontSize_values"
+        android:icon="@drawable/ic_format_size_black_24dp"
+        android:key="@string/pref_key_font_size"
+        android:summary="%s"
+        android:title="@string/settings_font_size" />
+
     <SwitchPreference
         android:defaultValue="@string/pref_value_wifi_and_mobile"
         android:icon="@drawable/ic_sync_black_24dp"