Add a trace button to the second activity

Author: tejasd

firebase-sessions/test-app/src/main/kotlin/com/google/firebase/testing/sessions/FirstFragment.kt

@@ -71,7 +71,7 @@ class FirstFragment : Fragment() {
       }
     }
     binding.createTrace.setOnClickListener {
-      viewLifecycleOwner.lifecycleScope.launch(Dispatchers.IO) {
+      lifecycleScope.launch(Dispatchers.IO) {
         val performanceTrace = performance.newTrace("test_trace")
         performanceTrace.start()
         delay(1000)

firebase-sessions/test-app/src/main/kotlin/com/google/firebase/testing/sessions/SecondActivity.kt

@@ -22,10 +22,13 @@ import android.content.Intent.FLAG_ACTIVITY_NEW_TASK
 import android.os.Build
 import android.os.Bundle
 import android.widget.Button
+import androidx.lifecycle.lifecycleScope
+import com.google.firebase.perf.FirebasePerformance
+import kotlinx.coroutines.delay
+import kotlinx.coroutines.launch
 
 /** Second activity from the MainActivity that runs on a different process. */
 class SecondActivity : BaseActivity() {
-
   override fun onCreate(savedInstanceState: Bundle?) {
     super.onCreate(savedInstanceState)
     setContentView(R.layout.activity_second)
@@ -38,6 +41,15 @@ class SecondActivity : BaseActivity() {
     findViewById<Button>(R.id.second_crash_button).setOnClickListener {
       throw IllegalStateException("SecondActivity has crashed")
     }
+    findViewById<Button>(R.id.second_create_trace).setOnClickListener {
+      lifecycleScope.launch {
+        val performanceTrace = FirebasePerformance.getInstance().newTrace("test_trace")
+        performanceTrace.start()
+        delay(1000)
+        performanceTrace.stop()
+      }
+
+    }
     findViewById<Button>(R.id.kill_background_processes).setOnClickListener {
       if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
         getSystemService(ActivityManager::class.java)

firebase-sessions/test-app/src/main/res/layout/activity_second.xml

@@ -38,6 +38,14 @@
     app:layout_constraintTop_toBottomOf="@id/prev_activity_button"
     app:layout_constraintLeft_toLeftOf="parent" />
 
+  <Button
+      android:id="@+id/second_create_trace"
+      android:layout_width="wrap_content"
+      android:layout_height="wrap_content"
+      android:text="@string/create_trace"
+      app:layout_constraintTop_toBottomOf="@id/second_crash_button"
+      app:layout_constraintLeft_toLeftOf="parent" />
+
   <Button
     android:id="@+id/kill_background_processes"
     android:layout_width="wrap_content"