Make the font size of the labels configurable

Closes #18

README.md

@@ -72,6 +72,7 @@ If you want to discuss this app, share ideas for features or get help with bugs
  * [LicensesDialog](https://github.com/PSDev/LicensesDialog)
  * [MaterialProgressBar](https://github.com/DreaminginCodeZH/MaterialProgressBar)
  * [OpenPGP API library](https://github.com/open-keychain/openpgp-api)
+ * [VNTNumberPickerPreference](https://github.com/vanniktech/VNTNumberPickerPreference)
  * [ZXing Android Embedded](https://github.com/journeyapps/zxing-android-embedded)
 
 #### Code examples used:

app/build.gradle

@@ -38,4 +38,5 @@ dependencies {
     compile 'commons-codec:commons-codec:1.5'
     compile 'me.zhanghai.android.materialprogressbar:library:1.4.1'
     compile 'org.sufficientlysecure:openpgp-api:12.0'
+    compile 'com.vanniktech:vntnumberpickerpreference:1.0.0'
 }

app/src/main/java/org/shadowice/flocke/andotp/EntriesCardAdapter.java

@@ -32,6 +32,7 @@ import android.preference.PreferenceManager;
 import android.support.v7.widget.CardView;
 import android.support.v7.widget.PopupMenu;
 import android.support.v7.widget.RecyclerView;
+import android.util.TypedValue;
 import android.view.LayoutInflater;
 import android.view.MenuInflater;
 import android.view.MenuItem;
@@ -56,6 +57,7 @@ public class EntriesCardAdapter extends RecyclerView.Adapter<EntriesCardAdapter.
     implements ItemTouchHelperAdapter, Filterable {
 
     private Context context;
+    private SharedPreferences sharedPrefs;
     private EntryFilter filter;
     private ArrayList<Entry> entries;
     private ArrayList<Integer> displayedEntries;
@@ -64,6 +66,8 @@ public class EntriesCardAdapter extends RecyclerView.Adapter<EntriesCardAdapter.
     public EntriesCardAdapter(Context context) {
         this.context = context;
 
+        this.sharedPrefs = PreferenceManager.getDefaultSharedPreferences(context);
+
         loadEntries();
     }
 
@@ -140,12 +144,14 @@ public class EntriesCardAdapter extends RecyclerView.Adapter<EntriesCardAdapter.
             entryViewHolder.customPeriodLayout.setVisibility(View.GONE);
         }
 
-        SharedPreferences sharedPref = PreferenceManager.getDefaultSharedPreferences(context);
-        if (sharedPref.getBoolean(context.getString(R.string.settings_key_tap_to_reveal), false)) {
+        if (sharedPrefs.getBoolean(context.getString(R.string.settings_key_tap_to_reveal), false)) {
             entryViewHolder.enableTapToReveal();
         } else {
             entryViewHolder.disableTapToReveal();
         }
+
+        int fontSize = sharedPrefs.getInt(context.getString(R.string.settings_key_label_size), context.getResources().getInteger(R.integer.settings_default_label_size));
+        entryViewHolder.OTPLabel.setTextSize(TypedValue.COMPLEX_UNIT_PT, fontSize);
     }
 
     @Override

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

@@ -57,7 +57,7 @@
                 android:layout_height="wrap_content"
                 android:maxLines="1"
                 android:ellipsize="end"
-                android:textAppearance="?android:attr/textAppearanceMedium" />
+                android:textSize="8pt" />
 
         </LinearLayout>
 

app/src/main/res/raw/licenses.xml

@@ -18,6 +18,12 @@
         <copyright>Copyright (C) 2015 Dominik Schürmann</copyright>
         <license>Apache Software License 2.0</license>
     </notice>
+    <notice>
+        <name>VNTNumberPickerPreference</name>
+        <url>https://github.com/vanniktech/VNTNumberPickerPreference</url>
+        <copyright>Copyright (C) 2014-2016 Vanniktech - Niklas Baudy</copyright>
+        <license>Apache Software License 2.0</license>
+    </notice>
     <notice>
         <name>ZXing Android Embedded</name>
         <url>https://github.com/journeyapps/zxing-android-embedded</url>

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

@@ -0,0 +1,9 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <!-- Default values -->
+    <integer name="settings_default_label_size">8</integer>
+
+    <!-- Constraints -->
+    <integer name="settings_min_label_size">4</integer>
+    <integer name="settings_max_label_size">12</integer>
+</resources>

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

@@ -4,6 +4,7 @@
 
     <!-- Categories -->
     <string name="settings_category_title_security">Security</string>
+    <string name="settings_category_title_ui">User interface</string>
     <string name="settings_category_title_openpgp">OpenPGP</string>
 
     <!-- Titles -->
@@ -11,6 +12,8 @@
     <string name="settings_title_auth_device">Require device credentials</string>
     <string name="settings_title_backup_password">Backup password</string>
 
+    <string name="settings_title_label_size">Label font size</string>
+
     <string name="settings_title_openpgp_provider">Select OpenPGP provider</string>
     <string name="settings_title_openpgp_keyid">Select OpenPGP key</string>
     <string name="settings_title_openpgp_sign">Sign encrypted backups</string>
@@ -40,6 +43,8 @@
     <string name="settings_key_auth_device" translatable="false">pref_auth_device</string>
     <string name="settings_key_backup_password" translatable="false">pref_backup_password</string>
 
+    <string name="settings_key_label_size" translatable="false">pref_label_size</string>
+
     <string name="settings_key_openpgp_provider">pref_openpgp_provider</string>
     <string name="settings_key_openpgp_keyid">pref_openpgp_keyid</string>
     <string name="settings_key_openpgp_sign">pref_openpgp_sign</string>

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

@@ -1,5 +1,7 @@
 <?xml version="1.0" encoding="utf-8"?>
-<PreferenceScreen xmlns:android="http://schemas.android.com/apk/res/android">
+<PreferenceScreen
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto">
 
     <PreferenceCategory
         android:title="@string/settings_category_title_security">
@@ -24,6 +26,18 @@
 
     </PreferenceCategory>
 
+    <PreferenceCategory
+        android:title="@string/settings_category_title_ui">
+
+        <com.vanniktech.vntnumberpickerpreference.VNTNumberPickerPreference
+            android:key="@string/settings_key_label_size"
+            android:title="@string/settings_title_label_size"
+            android:defaultValue="@integer/settings_default_label_size"
+            app:vnt_maxValue="@integer/settings_max_label_size"
+            app:vnt_minValue="@integer/settings_min_label_size" />
+
+    </PreferenceCategory>
+
     <PreferenceCategory
         android:title="@string/settings_category_title_openpgp">