Buttons in MainActivity will now increment the counter.

app/src/main/java/com/example/assignment1/MainActivity.java

@@ -4,6 +4,8 @@ import android.content.Intent;
 import android.os.Bundle;
 import android.view.View;
 import android.widget.Button;
+import android.widget.TextView;
+import android.widget.Toast;
 
 import androidx.appcompat.app.AppCompatActivity;
 
@@ -13,6 +15,10 @@ public class MainActivity extends AppCompatActivity {
     protected CounterButtonSharedPreferenceHelper secondCounterButtonSharedPrefHelper;
     protected CounterButtonSharedPreferenceHelper thirdCounterButtonSharedPrefHelper;
 
+    protected TextView counter;
+
+    protected MaxCountSharedPreferenceHelper maxCountSharedPreferenceHelper;
+
     protected Button settingsButton = null;
 
     protected Button firstCounterButton;
@@ -25,13 +31,18 @@ public class MainActivity extends AppCompatActivity {
         setContentView(R.layout.activity_main);
 
         settingsButton = findViewById(R.id.settings_button);
+
         firstCounterButton = findViewById(R.id.FirstEventButton);
         secondCounterButton = findViewById(R.id.SecondEventButton);
         thirdCounterButton = findViewById(R.id.ThirdEventButton);
 
+        counter = findViewById(R.id.counter);
+
         firstCounterButtonSharedPrefHelper = new CounterButtonSharedPreferenceHelper(MainActivity.this, CounterButton.FIRST);
         secondCounterButtonSharedPrefHelper = new CounterButtonSharedPreferenceHelper(MainActivity.this, CounterButton.SECOND);
         thirdCounterButtonSharedPrefHelper = new CounterButtonSharedPreferenceHelper(MainActivity.this, CounterButton.THIRD);
+        maxCountSharedPreferenceHelper = new MaxCountSharedPreferenceHelper(MainActivity.this);
+
 
         settingsButton.setOnClickListener(new View.OnClickListener() {
             @Override
@@ -40,6 +51,27 @@ public class MainActivity extends AppCompatActivity {
                 goToSettingsActivity();
             }
         });
+
+        firstCounterButton.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View v) {
+                incrementCounter();
+            }
+        });
+
+        secondCounterButton.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View v) {
+                incrementCounter();
+            }
+        });
+
+        thirdCounterButton.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View v) {
+                incrementCounter();
+            }
+        });
     }
 
     @Override
@@ -66,4 +98,20 @@ public class MainActivity extends AppCompatActivity {
         Intent intent = new Intent(MainActivity.this, SettingsActivity.class);
         startActivity(intent);
     }
+
+    private void incrementCounter(){
+        try{
+            if (Integer.parseInt(counter.getText().toString()) < Integer.parseInt(maxCountSharedPreferenceHelper.getMaxCount())){
+                String currentValue = counter.getText().toString();
+                int intValue = Integer.parseInt(currentValue);
+                int newValue = intValue + 1;
+                counter.setText(String.valueOf(newValue));
+            }
+            else {
+                Toast.makeText(getApplicationContext(), "Maximum count has been reached", Toast.LENGTH_SHORT).show();
+            }
+        } catch(NumberFormatException e) {
+            Toast.makeText(getApplicationContext(), "Error incrementing the counter", Toast.LENGTH_SHORT).show();
+        }
+    }
 }

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

@@ -71,6 +71,7 @@
             android:text="@string/total_count_text_view_string"/>
 
         <TextView
+            android:id="@+id/counter"
             android:layout_width="wrap_content"
             android:layout_height="wrap_content"
             style="@style/TotalCountTextSize"