Make menu item change between 4 themes for every language

Author: AmrDeveloper

app/src/main/java/com/amrdeveloper/codeviewlibrary/MainActivity.java

@@ -6,6 +6,7 @@
 import android.os.Bundle;
 import android.view.Menu;
 import android.view.MenuItem;
+import android.widget.ArrayAdapter;
 import android.widget.Toast;
 
 import com.amrdeveloper.codeview.CodeView;
@@ -16,6 +17,7 @@ public class MainActivity extends AppCompatActivity {
 
     private CodeView mCodeView;
 
+    //Index of next theme to load it when user click change theme
     private int mNextThemeIndex = 2;
 
     //To change themes easily
@@ -27,6 +29,37 @@ protected void onCreate(Bundle savedInstanceState) {
         setContentView(R.layout.activity_main);
 
         mCodeView = findViewById(R.id.codeView);
+
+        configLanguageAutoComplete();
+
+        //Config the default theme
+        SyntaxManager.applyMonokaiTheme(this, mCodeView, mCurrentLanguage);
+    }
+
+    private void configLanguageAutoComplete() {
+        //Load current Programming Language
+        final String[] languageKeywords;
+        switch (mCurrentLanguage){
+            case JAVA:
+                languageKeywords = getResources().getStringArray(R.array.java_keywords);
+                break;
+            case PYTHON:
+                languageKeywords = getResources().getStringArray(R.array.python_keywords);
+                break;
+            default:
+                languageKeywords = getResources().getStringArray(R.array.go_keywords);
+                break;
+        }
+
+        //Custom list item xml layout
+        final int layoutId = R.layout.suggestion_list_item;
+
+        //TextView id to put suggestion on it
+        final int viewId = R.id.suggestItemTextView;
+        ArrayAdapter<String> adapter = new ArrayAdapter<>(this, layoutId, viewId, languageKeywords);
+
+        //Add Custom Adapter to the CodeView
+        mCodeView.setAdapter(adapter);
     }
 
     @Override
@@ -39,32 +72,36 @@ public boolean onCreateOptionsMenu(Menu menu) {
     public boolean onOptionsItemSelected(@NonNull MenuItem item) {
         final int id = item.getItemId();
         if (id == R.id.changeMenu) {
-            //Change CodeView Theme
-            if(mNextThemeIndex > 4) {
-                mNextThemeIndex = 1;
-            }
-
-            switch (mNextThemeIndex) {
-                case 1:
-                    SyntaxManager.applyMonokaiTheme(this, mCodeView, mCurrentLanguage);
-                    Toast.makeText(this, "Monokai", Toast.LENGTH_SHORT).show();
-                    break;
-                case 2:
-                    SyntaxManager.applyNoctisWhiteTheme(this, mCodeView, mCurrentLanguage);
-                    Toast.makeText(this, "Noctis White", Toast.LENGTH_SHORT).show();
-                    break;
-                case 3:
-                    SyntaxManager.applyFiveColorsDarkTheme(this, mCodeView, mCurrentLanguage);
-                    Toast.makeText(this, "5 Colors Dark", Toast.LENGTH_SHORT).show();
-                    break;
-                case 4:
-                    SyntaxManager.applyOrangeBoxTheme(this, mCodeView, mCurrentLanguage);
-                    Toast.makeText(this, "Orange Box", Toast.LENGTH_SHORT).show();
-                    break;
-            }
-
-            mNextThemeIndex = mNextThemeIndex + 1;
+            changeCodeViewTheme();
         }
         return super.onOptionsItemSelected(item);
     }
+
+    private void changeCodeViewTheme() {
+        //Change CodeView Theme
+        if(mNextThemeIndex > 4) {
+            mNextThemeIndex = 1;
+        }
+
+        switch (mNextThemeIndex) {
+            case 1:
+                SyntaxManager.applyMonokaiTheme(this, mCodeView, mCurrentLanguage);
+                Toast.makeText(this, "Monokai", Toast.LENGTH_SHORT).show();
+                break;
+            case 2:
+                SyntaxManager.applyNoctisWhiteTheme(this, mCodeView, mCurrentLanguage);
+                Toast.makeText(this, "Noctis White", Toast.LENGTH_SHORT).show();
+                break;
+            case 3:
+                SyntaxManager.applyFiveColorsDarkTheme(this, mCodeView, mCurrentLanguage);
+                Toast.makeText(this, "5 Colors Dark", Toast.LENGTH_SHORT).show();
+                break;
+            case 4:
+                SyntaxManager.applyOrangeBoxTheme(this, mCodeView, mCurrentLanguage);
+                Toast.makeText(this, "Orange Box", Toast.LENGTH_SHORT).show();
+                break;
+        }
+
+        mNextThemeIndex = mNextThemeIndex + 1;
+    }
 }

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

@@ -52,7 +52,7 @@
     </string-array>
 
     <!--GoLang Keywords List-->
-    <string-array name="go_keyword">
+    <string-array name="go_keywords">
         <item>break</item>
         <item>default</item>
         <item>func</item>
@@ -105,7 +105,7 @@
     </string-array>
 
     <!--Python Keywords List-->
-    <string-array name="python_keyword">
+    <string-array name="python_keywords">
         <item>False</item>
         <item>await</item>
         <item>else</item>