Add PoC code for DeviceListManagement

NucuHub.Android/app/src/main/java/dev/nuculabs/nucuhub/ui/settings/DeviceListPreference.java

@@ -20,5 +20,9 @@ public class DeviceListPreference extends ListPreference {
     public DeviceListPreference(Context context) {
         super(context);
     }
-    // TODO: Create custom dialog, override onClick.
+
+    @Override
+    protected void onClick() {
+        new DeviceManagementDialog(getContext()).show(this);
+    }
 }

NucuHub.Android/app/src/main/java/dev/nuculabs/nucuhub/ui/settings/DeviceManagementDialog.java

@@ -0,0 +1,111 @@
+package dev.nuculabs.nucuhub.ui.settings;
+
+import android.app.Activity;
+import android.app.Dialog;
+import android.content.Context;
+import android.content.SharedPreferences;
+import android.os.Bundle;
+import android.view.MenuItem;
+import android.view.View;
+import android.view.WindowManager;
+import android.widget.ArrayAdapter;
+import android.widget.Button;
+import android.widget.ListView;
+import androidx.annotation.NonNull;
+import androidx.appcompat.widget.Toolbar;
+import androidx.preference.ListPreference;
+import dev.nuculabs.nucuhub.R;
+
+import java.util.HashSet;
+
+public class DeviceManagementDialog extends Dialog {
+    private SharedPreferences sharedPreferences;
+    private ListPreference preference = null;
+    private ArrayAdapter<String> adapter;
+
+    public DeviceManagementDialog(@NonNull Context context) {
+        super(context, R.style.ThemeOverlay_AppCompat_ActionBar);
+    }
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.settings_device_management_dialog);
+        getWindow().setLayout(WindowManager.LayoutParams.MATCH_PARENT, WindowManager.LayoutParams.MATCH_PARENT);
+        setupToolbar();
+
+        sharedPreferences = getContext().getSharedPreferences("settings", Activity.MODE_PRIVATE);
+
+        final ListView deviceListView = findViewById(R.id.settings_device_dialog_list);
+        adapter = new ArrayAdapter<String>(getContext(), android.R.layout.simple_list_item_1);
+        deviceListView.setAdapter(adapter);
+
+        // dummy code to add simple items.
+        final CharSequence [] preferenceCharSeq = preference.getEntries();
+        for (CharSequence item : preferenceCharSeq) {
+            adapter.add(item.toString());
+        }
+
+        Button testConnectionButton = findViewById(R.id.settings_device_test_connection_button);
+        testConnectionButton.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View v) {
+                adapter.add("new object.");
+            }
+        });
+    }
+
+    @Override
+    public boolean onOptionsItemSelected(MenuItem item) {
+        // back button click
+        if (item.getItemId() == android.R.id.home) {
+            saveChangesAndDismiss();
+            return true;
+        }
+
+        return super.onOptionsItemSelected(item);
+    }
+
+    @Override
+    public void onBackPressed() {
+        saveChangesAndDismiss();
+        super.onBackPressed();
+    }
+
+    public void show(@NonNull ListPreference preference) {
+        this.preference = preference;
+        super.show();
+    }
+
+    public void saveChangesAndDismiss() {
+        updatePreferenceEntryValues();
+        dismiss();
+    }
+
+    private void updatePreferenceEntryValues() {
+        // dummy code to update the entries.
+        int itemsLength = adapter.getCount();
+        CharSequence[] entries = new CharSequence[itemsLength];
+        HashSet<String> entriesSet = new HashSet<>();
+        for (int i = 0; i < itemsLength; i++) {
+            entries[i] = adapter.getItem(i);
+            entriesSet.add(entries[i].toString());
+        }
+        preference.setEntries(entries);
+
+        SharedPreferences.Editor spe = sharedPreferences.edit();
+        spe.putStringSet("current_device_list", entriesSet);
+    }
+
+    private void setupToolbar() {
+        Toolbar toolbar = findViewById(R.id.settings_device_dialog_toolbar);
+        toolbar.setTitle(R.string.device_management_title);
+        toolbar.setNavigationIcon(R.drawable.ic_baseline_arrow_gray_24);
+        toolbar.setNavigationOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View v) {
+                saveChangesAndDismiss();
+            }
+        });
+    }
+}

NucuHub.Android/app/src/main/java/dev/nuculabs/nucuhub/ui/settings/SettingsFragment.java

@@ -1,21 +1,41 @@
 package dev.nuculabs.nucuhub.ui.settings;
 
+import android.app.Activity;
+import android.content.SharedPreferences;
 import android.os.Bundle;
-import androidx.preference.ListPreference;
 import androidx.preference.PreferenceFragmentCompat;
 import dev.nuculabs.nucuhub.R;
 
+import java.util.Set;
+
 public class SettingsFragment extends PreferenceFragmentCompat {
+    private SharedPreferences sharedPreferences;
+
+
     @Override
     public void onCreatePreferences(Bundle savedInstanceState, String rootKey) {
         // To get preferences use this in main activity:
         // SharedPreferences sp = PreferenceManager.getDefaultSharedPreferences(this);
 
         setPreferencesFromResource(R.xml.root_preferences, rootKey);
-        ListPreference devicesList = findPreference("device_list");
+        updateDeviceListItems();
+    }
+
+    private void updateDeviceListItems() {
+        // dummy code to update device list entries
+        SharedPreferences sp = getContext().getSharedPreferences("settings", Activity.MODE_PRIVATE);
+        SharedPreferences.Editor spe = sp.edit();
+        DeviceListPreference devicesList = findPreference("device_list");
+        Set<String> savedEntries = sp.getStringSet("current_device_list", null);
+        if (savedEntries != null) {
+            CharSequence[] items = new CharSequence[savedEntries.size()];
+            int index = 0;
+            for (String item : savedEntries) {
+                items[index] = item;
+                index += 1;
+            }
+            devicesList.setEntries(items);
+        }
 
-        // TODO: Override dialog in order to add a search devices button.
-        //
-        // set default value
     }
 }

NucuHub.Android/app/src/main/res/drawable/ic_baseline_arrow_gray_24.xml

@@ -0,0 +1,5 @@
+<vector android:height="24dp" android:tint="#C5C5C5"
+    android:viewportHeight="24" android:viewportWidth="24"
+    android:width="24dp" xmlns:android="http://schemas.android.com/apk/res/android">
+    <path android:fillColor="@android:color/white" android:pathData="M20,11H7.83l5.59,-5.59L12,4l-8,8 8,8 1.41,-1.41L7.83,13H20v-2z"/>
+</vector>

NucuHub.Android/app/src/main/res/layout/settings_device_management_dialog.xml

@@ -0,0 +1,78 @@
+<?xml version="1.0" encoding="utf-8"?>
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+              xmlns:app="http://schemas.android.com/apk/res-auto" xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent"
+              android:layout_height="wrap_content" android:orientation="vertical"
+>
+
+    <com.google.android.material.appbar.AppBarLayout
+            android:layout_height="wrap_content"
+            android:layout_width="match_parent"
+            android:theme="@style/AppTheme.AppBarOverlay">
+        <androidx.appcompat.widget.Toolbar
+                android:id="@+id/settings_device_dialog_toolbar"
+                android:layout_width="match_parent"
+                android:layout_height="?attr/actionBarSize"
+                android:background="?attr/colorPrimary"
+                tools:visibility="visible">
+        </androidx.appcompat.widget.Toolbar>
+    </com.google.android.material.appbar.AppBarLayout>
+
+    <TextView
+            android:text="@string/settings_connect_new_device"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:textAppearance="@style/TextAppearance.AppCompat.Large" android:paddingTop="10dp"
+            android:paddingLeft="10dp" android:paddingRight="10dp"/>
+    <LinearLayout
+            android:orientation="vertical"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:paddingLeft="10dp" android:paddingRight="10dp">
+        <com.google.android.material.textfield.TextInputLayout
+                android:layout_width="match_parent"
+                android:layout_height="match_parent" android:id="@+id/settings_device_input_device">
+
+            <com.google.android.material.textfield.TextInputEditText
+                    android:layout_width="match_parent"
+                    android:layout_height="wrap_content"
+                    android:hint="@string/settings_device_add_new_device_input_hint"/>
+        </com.google.android.material.textfield.TextInputLayout>
+
+        <TextView
+                android:text="$$Connection status$$"
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content" android:id="@+id/text_connection_status" android:gravity="center"/>
+        <Button
+                android:text="@string/settings_device_test_connection_btn"
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content" android:id="@+id/settings_device_test_connection_button"
+                tools:text="Test Connection"/>
+
+        <Button
+                android:text="@string/settings_device_add_device_btn"
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content" android:id="@+id/settings_device_add_device_button"
+                android:enabled="false"/>
+
+    </LinearLayout>
+
+    <View android:layout_height="1dp"
+          android:layout_width="fill_parent"
+          android:background="#800B001B"
+    />
+    <TextView
+            android:text="@string/settings_device_saved_devices"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:textAppearance="@style/TextAppearance.AppCompat.Large" android:paddingTop="10dp"
+            android:paddingLeft="10dp" android:paddingRight="10dp"/>
+    <LinearLayout
+            android:orientation="vertical"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content" android:paddingLeft="20dp" android:paddingRight="20dp"
+            android:paddingTop="10dp" android:paddingBottom="10dp">
+        <ListView
+                android:layout_width="match_parent"
+                android:layout_height="match_parent" android:id="@+id/settings_device_dialog_list"/>
+    </LinearLayout>
+</LinearLayout>

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

@@ -33,6 +33,12 @@
 
     <!-- Device Preferences -->
     <string name="device_selection_title">Your current device</string>
+    <string name="device_management_title">Device Management</string>
+    <string name="settings_connect_new_device">Connect new device</string>
+    <string name="settings_device_test_connection_btn">Test Connection</string>
+    <string name="settings_device_add_new_device_input_hint">http://hostname:port</string>
+    <string name="settings_device_add_device_btn">Add Device</string>
+    <string name="settings_device_saved_devices">Saved Devices</string>
 
 
     <!-- Messages Preferences -->

NucuHub.Android/app/src/main/res/xml/root_preferences.xml

@@ -41,8 +41,9 @@
         <dev.nuculabs.nucuhub.ui.settings.DeviceListPreference
                 app:key="device_list"
                 app:title="@string/device_selection_title"
-                app:entries="@array/device_list_array"
+                app:entries="@array/reply_entries"
-                app:entryValues="@array/device_list_array"
+                app:entryValues="@array/reply_values"
+                app:defaultValue="reply"
                 app:useSimpleSummaryProvider="true"/>
 
     </PreferenceCategory>