Removed some useless code

FocusOrder/ANDROIDAccessibilityOrder/app/src/main/java/com/example/paolo/androidaccessibilityorder/MainActivity.java

-package com.example.paolo.androidaccessibilityorder;
-
-import android.support.v7.app.AppCompatActivity;
-import android.os.Bundle;
-import android.util.Log;
-import android.view.View;
-import android.view.accessibility.AccessibilityEvent;
-import android.view.accessibility.AccessibilityManager;
-import android.widget.Button;
-import android.widget.LinearLayout;
-
-public class MainActivity extends AppCompatActivity {
-
-    Button b1,b2,b3, changeorder;
-    @Override
-    protected void onCreate(Bundle savedInstanceState) {
-        super.onCreate(savedInstanceState);
-        setContentView(R.layout.activity_main);
-
-        LinearLayout linearlayout = findViewById(R.id.linearlayout);
-
-        changeorder = new Button(this);
-        changeorder.setId(R.id.changeOrderButton); // Add the ID so that accessibility traversal can identify this view
-        changeorder.setText("Presso to change order");
-        changeorder.setOnClickListener(new View.OnClickListener() {
-            @Override
-            public void onClick(View v) {
-                Log.i("BUTTON","Clicked change order button");
-                b3.invalidate();
-                b1.invalidate();
-                b2.invalidate();
-                //changeorder.setAccessibilityTraversalBefore(b3.getId());
-                b3.setImportantForAccessibility(View.IMPORTANT_FOR_ACCESSIBILITY_YES);
-                b3.setAccessibilityTraversalAfter(changeorder.getId());
-                //b3.setAccessibilityTraversalBefore(b1.getId());
-                b1.setImportantForAccessibility(View.IMPORTANT_FOR_ACCESSIBILITY_YES);
-                b1.setAccessibilityTraversalAfter(b3.getId());
-                //b1.setAccessibilityTraversalBefore(b2.getId());
-                b2.setImportantForAccessibility(View.IMPORTANT_FOR_ACCESSIBILITY_YES);
-                b2.setAccessibilityTraversalAfter(b1.getId());
-                changeorder.setText("Order changed b3,b1,b2");
-
-
-            }
-        });
-        linearlayout.addView(changeorder);
-        Log.i("PIPPO","ciao");
-        AccessibilityManager am = ((AccessibilityManager) getSystemService(ACCESSIBILITY_SERVICE));
-        if(am.isEnabled()){
-            Log.i("PIPPO","talkback attivo");
-        }
-        if(am.isTouchExplorationEnabled()){
-            Log.i("PIPPO","Exploration attiva");
-        }
-
-        b1 = new Button(this);
-        b1.setId(R.id.button1); // Add the ID so that accessibility traversal can identify this view
-        b1.setText("BUTTON 1");
-        linearlayout.addView(b1);
-
-
-        b2 = new Button(this);
-        b2.setId(R.id.button2); // Add the ID so that accessibility traversal can identify this view
-        b2.setText("BUTTON 2");
-        linearlayout.addView(b2);
-
-
-        b3 = new Button(this);
-        b3.setId(R.id.button3); // Add the ID so that accessibility traversal can identify this view
-        b3.setText("BUTTON 3");
-        linearlayout.addView(b3);
-
-
-        }
-}
+package com.example.paolo.androidaccessibilityorder;
+
+import android.support.v7.app.AppCompatActivity;
+import android.os.Bundle;
+import android.util.Log;
+import android.view.View;
+import android.view.accessibility.AccessibilityEvent;
+import android.view.accessibility.AccessibilityManager;
+import android.widget.Button;
+import android.widget.LinearLayout;
+
+public class MainActivity extends AppCompatActivity {
+
+    Button b1,b2,b3, changeorder;
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_main);
+
+        LinearLayout linearlayout = findViewById(R.id.linearlayout);
+
+        changeorder = new Button(this);
+        changeorder.setId(R.id.changeOrderButton); // Add the ID so that accessibility traversal can identify this view
+        changeorder.setText("Presso to change order");
+        changeorder.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View v) {
+                Log.i("BUTTON","Clicked change order button");
+                //changeorder.setAccessibilityTraversalBefore(b3.getId());
+                b3.setImportantForAccessibility(View.IMPORTANT_FOR_ACCESSIBILITY_YES);
+                b3.setAccessibilityTraversalAfter(changeorder.getId());
+                //b3.setAccessibilityTraversalBefore(b1.getId());
+                b1.setImportantForAccessibility(View.IMPORTANT_FOR_ACCESSIBILITY_YES);
+                b1.setAccessibilityTraversalAfter(b3.getId());
+                //b1.setAccessibilityTraversalBefore(b2.getId());
+                b2.setImportantForAccessibility(View.IMPORTANT_FOR_ACCESSIBILITY_YES);
+                b2.setAccessibilityTraversalAfter(b1.getId());
+                changeorder.setText("Order changed b3,b1,b2");
+
+
+            }
+        });
+        linearlayout.addView(changeorder);
+        
+        AccessibilityManager am = ((AccessibilityManager) getSystemService(ACCESSIBILITY_SERVICE));
+        if(am.isEnabled()){
+            Log.i("SCREENREADER","talkback is enabled");
+        }
+        if(am.isTouchExplorationEnabled()){
+            Log.i("SCREENREADER","Exploration is enabled");
+        }
+
+        b1 = new Button(this);
+        b1.setId(R.id.button1); // Add the ID so that accessibility traversal can identify this view
+        b1.setText("BUTTON 1");
+        linearlayout.addView(b1);
+
+
+        b2 = new Button(this);
+        b2.setId(R.id.button2); // Add the ID so that accessibility traversal can identify this view
+        b2.setText("BUTTON 2");
+        linearlayout.addView(b2);
+
+
+        b3 = new Button(this);
+        b3.setId(R.id.button3); // Add the ID so that accessibility traversal can identify this view
+        b3.setText("BUTTON 3");
+        linearlayout.addView(b3);
+
+
+        }
+}