add preference screen

.idea/uiDesigner.xml

@@ -0,0 +1,124 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="Palette2">
+    <group name="Swing">
+      <item class="com.intellij.uiDesigner.HSpacer" tooltip-text="Horizontal Spacer" icon="/com/intellij/uiDesigner/icons/hspacer.png" removable="false" auto-create-binding="false" can-attach-label="false">
+        <default-constraints vsize-policy="1" hsize-policy="6" anchor="0" fill="1" />
+      </item>
+      <item class="com.intellij.uiDesigner.VSpacer" tooltip-text="Vertical Spacer" icon="/com/intellij/uiDesigner/icons/vspacer.png" removable="false" auto-create-binding="false" can-attach-label="false">
+        <default-constraints vsize-policy="6" hsize-policy="1" anchor="0" fill="2" />
+      </item>
+      <item class="javax.swing.JPanel" icon="/com/intellij/uiDesigner/icons/panel.png" removable="false" auto-create-binding="false" can-attach-label="false">
+        <default-constraints vsize-policy="3" hsize-policy="3" anchor="0" fill="3" />
+      </item>
+      <item class="javax.swing.JScrollPane" icon="/com/intellij/uiDesigner/icons/scrollPane.png" removable="false" auto-create-binding="false" can-attach-label="true">
+        <default-constraints vsize-policy="7" hsize-policy="7" anchor="0" fill="3" />
+      </item>
+      <item class="javax.swing.JButton" icon="/com/intellij/uiDesigner/icons/button.png" removable="false" auto-create-binding="true" can-attach-label="false">
+        <default-constraints vsize-policy="0" hsize-policy="3" anchor="0" fill="1" />
+        <initial-values>
+          <property name="text" value="Button" />
+        </initial-values>
+      </item>
+      <item class="javax.swing.JRadioButton" icon="/com/intellij/uiDesigner/icons/radioButton.png" removable="false" auto-create-binding="true" can-attach-label="false">
+        <default-constraints vsize-policy="0" hsize-policy="3" anchor="8" fill="0" />
+        <initial-values>
+          <property name="text" value="RadioButton" />
+        </initial-values>
+      </item>
+      <item class="javax.swing.JCheckBox" icon="/com/intellij/uiDesigner/icons/checkBox.png" removable="false" auto-create-binding="true" can-attach-label="false">
+        <default-constraints vsize-policy="0" hsize-policy="3" anchor="8" fill="0" />
+        <initial-values>
+          <property name="text" value="CheckBox" />
+        </initial-values>
+      </item>
+      <item class="javax.swing.JLabel" icon="/com/intellij/uiDesigner/icons/label.png" removable="false" auto-create-binding="false" can-attach-label="false">
+        <default-constraints vsize-policy="0" hsize-policy="0" anchor="8" fill="0" />
+        <initial-values>
+          <property name="text" value="Label" />
+        </initial-values>
+      </item>
+      <item class="javax.swing.JTextField" icon="/com/intellij/uiDesigner/icons/textField.png" removable="false" auto-create-binding="true" can-attach-label="true">
+        <default-constraints vsize-policy="0" hsize-policy="6" anchor="8" fill="1">
+          <preferred-size width="150" height="-1" />
+        </default-constraints>
+      </item>
+      <item class="javax.swing.JPasswordField" icon="/com/intellij/uiDesigner/icons/passwordField.png" removable="false" auto-create-binding="true" can-attach-label="true">
+        <default-constraints vsize-policy="0" hsize-policy="6" anchor="8" fill="1">
+          <preferred-size width="150" height="-1" />
+        </default-constraints>
+      </item>
+      <item class="javax.swing.JFormattedTextField" icon="/com/intellij/uiDesigner/icons/formattedTextField.png" removable="false" auto-create-binding="true" can-attach-label="true">
+        <default-constraints vsize-policy="0" hsize-policy="6" anchor="8" fill="1">
+          <preferred-size width="150" height="-1" />
+        </default-constraints>
+      </item>
+      <item class="javax.swing.JTextArea" icon="/com/intellij/uiDesigner/icons/textArea.png" removable="false" auto-create-binding="true" can-attach-label="true">
+        <default-constraints vsize-policy="6" hsize-policy="6" anchor="0" fill="3">
+          <preferred-size width="150" height="50" />
+        </default-constraints>
+      </item>
+      <item class="javax.swing.JTextPane" icon="/com/intellij/uiDesigner/icons/textPane.png" removable="false" auto-create-binding="true" can-attach-label="true">
+        <default-constraints vsize-policy="6" hsize-policy="6" anchor="0" fill="3">
+          <preferred-size width="150" height="50" />
+        </default-constraints>
+      </item>
+      <item class="javax.swing.JEditorPane" icon="/com/intellij/uiDesigner/icons/editorPane.png" removable="false" auto-create-binding="true" can-attach-label="true">
+        <default-constraints vsize-policy="6" hsize-policy="6" anchor="0" fill="3">
+          <preferred-size width="150" height="50" />
+        </default-constraints>
+      </item>
+      <item class="javax.swing.JComboBox" icon="/com/intellij/uiDesigner/icons/comboBox.png" removable="false" auto-create-binding="true" can-attach-label="true">
+        <default-constraints vsize-policy="0" hsize-policy="2" anchor="8" fill="1" />
+      </item>
+      <item class="javax.swing.JTable" icon="/com/intellij/uiDesigner/icons/table.png" removable="false" auto-create-binding="true" can-attach-label="false">
+        <default-constraints vsize-policy="6" hsize-policy="6" anchor="0" fill="3">
+          <preferred-size width="150" height="50" />
+        </default-constraints>
+      </item>
+      <item class="javax.swing.JList" icon="/com/intellij/uiDesigner/icons/list.png" removable="false" auto-create-binding="true" can-attach-label="false">
+        <default-constraints vsize-policy="6" hsize-policy="2" anchor="0" fill="3">
+          <preferred-size width="150" height="50" />
+        </default-constraints>
+      </item>
+      <item class="javax.swing.JTree" icon="/com/intellij/uiDesigner/icons/tree.png" removable="false" auto-create-binding="true" can-attach-label="false">
+        <default-constraints vsize-policy="6" hsize-policy="6" anchor="0" fill="3">
+          <preferred-size width="150" height="50" />
+        </default-constraints>
+      </item>
+      <item class="javax.swing.JTabbedPane" icon="/com/intellij/uiDesigner/icons/tabbedPane.png" removable="false" auto-create-binding="true" can-attach-label="false">
+        <default-constraints vsize-policy="3" hsize-policy="3" anchor="0" fill="3">
+          <preferred-size width="200" height="200" />
+        </default-constraints>
+      </item>
+      <item class="javax.swing.JSplitPane" icon="/com/intellij/uiDesigner/icons/splitPane.png" removable="false" auto-create-binding="false" can-attach-label="false">
+        <default-constraints vsize-policy="3" hsize-policy="3" anchor="0" fill="3">
+          <preferred-size width="200" height="200" />
+        </default-constraints>
+      </item>
+      <item class="javax.swing.JSpinner" icon="/com/intellij/uiDesigner/icons/spinner.png" removable="false" auto-create-binding="true" can-attach-label="true">
+        <default-constraints vsize-policy="0" hsize-policy="6" anchor="8" fill="1" />
+      </item>
+      <item class="javax.swing.JSlider" icon="/com/intellij/uiDesigner/icons/slider.png" removable="false" auto-create-binding="true" can-attach-label="false">
+        <default-constraints vsize-policy="0" hsize-policy="6" anchor="8" fill="1" />
+      </item>
+      <item class="javax.swing.JSeparator" icon="/com/intellij/uiDesigner/icons/separator.png" removable="false" auto-create-binding="false" can-attach-label="false">
+        <default-constraints vsize-policy="6" hsize-policy="6" anchor="0" fill="3" />
+      </item>
+      <item class="javax.swing.JProgressBar" icon="/com/intellij/uiDesigner/icons/progressbar.png" removable="false" auto-create-binding="true" can-attach-label="false">
+        <default-constraints vsize-policy="0" hsize-policy="6" anchor="0" fill="1" />
+      </item>
+      <item class="javax.swing.JToolBar" icon="/com/intellij/uiDesigner/icons/toolbar.png" removable="false" auto-create-binding="false" can-attach-label="false">
+        <default-constraints vsize-policy="0" hsize-policy="6" anchor="0" fill="1">
+          <preferred-size width="-1" height="20" />
+        </default-constraints>
+      </item>
+      <item class="javax.swing.JToolBar$Separator" icon="/com/intellij/uiDesigner/icons/toolbarSeparator.png" removable="false" auto-create-binding="false" can-attach-label="false">
+        <default-constraints vsize-policy="0" hsize-policy="0" anchor="0" fill="1" />
+      </item>
+      <item class="javax.swing.JScrollBar" icon="/com/intellij/uiDesigner/icons/scrollbar.png" removable="false" auto-create-binding="true" can-attach-label="false">
+        <default-constraints vsize-policy="6" hsize-policy="0" anchor="0" fill="2" />
+      </item>
+    </group>
+  </component>
+</project>

app/build.gradle

@@ -26,6 +26,8 @@ dependencies {
     implementation 'com.android.support:recyclerview-v7:27.1.1'
     implementation 'com.android.support:cardview-v7:27.1.1'
     implementation 'com.android.support.constraint:constraint-layout:1.1.2'
+    implementation 'com.android.support:preference-v7:27.1.1'
+    implementation 'com.android.support:preference-v14:27.1.1'
 
     implementation 'com.google.android.gms:play-services-vision:15.0.2'
 
@@ -35,6 +37,7 @@ dependencies {
     implementation 'com.google.code.gson:gson:2.8.5'
 
     implementation fileTree(include: ['*.jar'], dir: 'libs')
+    implementation 'com.android.support:support-v4:27.1.1'
     testImplementation 'junit:junit:4.12'
     androidTestImplementation 'com.android.support.test:runner:1.0.2'
     androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.2'

app/src/main/AndroidManifest.xml

@@ -28,16 +28,17 @@
 				android:screenOrientation="portrait"
 				android:theme="@style/AppTheme.Fullscreen">
 		</activity>
-
+		<activity
-		<activity android:name=".SyncUploadActivity"
+				android:name=".SyncUploadActivity"
 				android:label="@string/upload"/>
-
 		<activity
 				android:name=".MyOrganisationActivity"
 				android:label="@string/credentials_activity"
 				android:parentActivityName=".MainActivity"/>
 		<activity android:name=".QrSyncActivity">
 		</activity>
+		<activity android:name=".preferences.AppPreferenceActivity">
+		</activity>
 	</application>
 
 </manifest>

app/src/main/java/de/overview/wg/its/mispbump/MainActivity.java

@@ -23,6 +23,8 @@ import android.widget.TextView;
 import de.overview.wg.its.mispbump.adapter.SyncedPartnerAdapter;
 import de.overview.wg.its.mispbump.auxiliary.PreferenceManager;
 import de.overview.wg.its.mispbump.model.SyncedPartner;
+import de.overview.wg.its.mispbump.preferences.AppPreferenceActivity;
+import de.overview.wg.its.mispbump.preferences.AppPreferenceFragment;
 
 import java.util.ArrayList;
 import java.util.List;
@@ -68,6 +70,10 @@ public class MainActivity extends AppCompatActivity {
 			case R.id.menu_item_delete_local_data:
 				createSelectDeleteDialog();
 				return true;
+
+            case R.id.main_menu_settings:
+                startActivity(new Intent(this, AppPreferenceActivity.class));
+                return true;
 		}
 
 		return super.onOptionsItemSelected(item);

app/src/main/java/de/overview/wg/its/mispbump/preferences/AppPreferenceActivity.java

@@ -0,0 +1,34 @@
+package de.overview.wg.its.mispbump.preferences;
+
+import android.support.v7.app.AppCompatActivity;
+import android.os.Bundle;
+import android.support.v7.preference.PreferenceManager;
+import android.support.v7.widget.Toolbar;
+import de.overview.wg.its.mispbump.R;
+
+public class AppPreferenceActivity extends AppCompatActivity {
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+
+        setContentView(R.layout.activity_app_preference);
+
+        getSupportFragmentManager().beginTransaction()
+                .replace(R.id.settings_content, new AppPreferenceFragment())
+                .commit();
+
+        initializeContent();
+    }
+
+    private void initializeContent() {
+        Toolbar toolbar = findViewById(R.id.toolbar);
+        setSupportActionBar(toolbar);
+
+        //noinspection ConstantConditions
+        getSupportActionBar().setDisplayShowTitleEnabled(true);
+        getSupportActionBar().setDisplayHomeAsUpEnabled(true);
+        getSupportActionBar().setDisplayShowHomeEnabled(true);
+    }
+
+}

app/src/main/java/de/overview/wg/its/mispbump/preferences/AppPreferenceFragment.java

@@ -0,0 +1,14 @@
+package de.overview.wg.its.mispbump.preferences;
+
+import android.os.Bundle;
+import android.support.v7.preference.PreferenceFragmentCompat;
+import de.overview.wg.its.mispbump.R;
+
+public class AppPreferenceFragment extends PreferenceFragmentCompat {
+
+    @Override
+    public void onCreatePreferences(Bundle savedInstanceState, String rootKey) {
+        addPreferencesFromResource(R.xml.app_preferences);
+    }
+
+}

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

@@ -0,0 +1,29 @@
+<?xml version="1.0" encoding="utf-8"?>
+<android.support.design.widget.CoordinatorLayout
+		xmlns:android="http://schemas.android.com/apk/res/android"
+		xmlns:tools="http://schemas.android.com/tools"
+		xmlns:app="http://schemas.android.com/apk/res-auto"
+		tools:context=".MainActivity"
+		android:layout_width="match_parent"
+		android:layout_height="match_parent">
+
+	<android.support.design.widget.AppBarLayout
+			android:id="@+id/appbar"
+			android:layout_width="match_parent"
+			android:layout_height="wrap_content"
+			android:theme="@style/AppTheme.AppBarOverlay">
+
+		<android.support.v7.widget.Toolbar
+				android:id="@+id/toolbar"
+				android:layout_width="match_parent"
+				android:layout_height="?android:attr/actionBarSize"
+				app:popupTheme="@style/AppTheme.PopupOverlay"/>
+
+	</android.support.design.widget.AppBarLayout>
+
+	<FrameLayout
+			android:id="@+id/settings_content"
+			android:layout_width="match_parent" android:layout_height="match_parent"
+			app:layout_behavior="@string/appbar_scrolling_view_behavior"/>
+
+</android.support.design.widget.CoordinatorLayout>

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

@@ -1,32 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<android.support.constraint.ConstraintLayout
-		xmlns:android="http://schemas.android.com/apk/res/android"
-		xmlns:tools="http://schemas.android.com/tools"
-		xmlns:app="http://schemas.android.com/apk/res-auto"
-		android:layout_width="match_parent"
-		android:layout_height="match_parent">
-
-	<ProgressBar
-			android:id="@+id/progressBar"
-			android:layout_width="50dp"
-			android:layout_height="wrap_content"
-			android:indeterminate="true"
-
-			app:layout_constraintTop_toTopOf="parent" android:layout_marginTop="8dp"
-			app:layout_constraintStart_toStartOf="parent" android:layout_marginStart="8dp"
-			app:layout_constraintEnd_toEndOf="parent" android:layout_marginEnd="8dp"
-			app:layout_constraintBottom_toBottomOf="parent" android:layout_marginBottom="8dp"/>
-
-	<TextView
-			android:id="@+id/textView"
-			android:text="Generating safe primes. This may take a long time..."
-			android:layout_width="wrap_content"
-			android:layout_height="wrap_content"
-			app:layout_constraintEnd_toEndOf="parent"
-			android:layout_marginEnd="8dp"
-			app:layout_constraintBottom_toBottomOf="parent"
-			android:layout_marginBottom="8dp" android:layout_marginTop="8dp"
-			app:layout_constraintTop_toBottomOf="@+id/progressBar" app:layout_constraintStart_toStartOf="parent"
-			android:layout_marginStart="8dp" app:layout_constraintVertical_bias="0.0"/>
-
-</android.support.constraint.ConstraintLayout>

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

@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+	<string-array name="languages">
+		<item>English</item>
+		<item>German</item>
+	</string-array>
+</resources>

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

@@ -49,5 +49,8 @@
 	<string name="no">No</string>
 	<string name="proceed">Proceed</string>
 
+	<!-- TODO: Remove or change this placeholder text -->
+	<string name="hello_blank_fragment">Hello blank fragment</string>
+
 
 </resources>

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

@@ -4,6 +4,9 @@
 		<item name="colorPrimary">@color/colorPrimary</item>
 		<item name="colorPrimaryDark">@color/colorPrimaryDark</item>
 		<item name="colorAccent">@color/colorAccent</item>
+		<item name="preferenceTheme">
+			@style/PreferenceThemeOverlay.v14.Material
+		</item>
 	</style>
 
 	<style name="AppTheme.Fullscreen" parent="AppTheme">

app/src/main/res/xml/app_preferences.xml

@@ -0,0 +1,35 @@
+<android.support.v7.preference.PreferenceScreen
+		xmlns:app="http://schemas.android.com/apk/res-auto"
+		xmlns:android="http://schemas.android.com/apk/res/android">
+
+	<android.support.v7.preference.PreferenceCategory
+			android:title="Language">
+
+		<android.support.v7.preference.SwitchPreferenceCompat
+				android:key="key1"
+				android:title="System Default"
+				android:summary="Use the systems default language"
+				android:defaultValue="true"/>
+
+		<android.support.v7.preference.ListPreference
+				android:dependency="key1"
+				android:key="key4"
+				android:title="Language"
+				android:summary="Englisch"
+				android:entries="@array/languages"
+				android:entryValues="@array/languages" />
+
+	</android.support.v7.preference.PreferenceCategory>
+
+	<android.support.v7.preference.PreferenceCategory
+			android:title="Other">
+
+		<android.support.v7.preference.SwitchPreferenceCompat
+				android:key="key9"
+				android:title="Debug"
+				android:summary="Enable Debug Mode"
+				android:defaultValue="true"/>
+
+	</android.support.v7.preference.PreferenceCategory>
+
+</android.support.v7.preference.PreferenceScreen>