Merge branch '1422-activity-log' into 'master'

Log when activities start and stop

See merge request briar/briar!959

briar-android/src/main/java/org/briarproject/briar/android/activity/BaseActivity.java

@@ -34,6 +34,7 @@ import org.briarproject.briar.api.android.ScreenFilterMonitor.AppDetails;
 import java.util.ArrayList;
 import java.util.Collection;
 import java.util.List;
+import java.util.logging.Logger;
 
 import javax.annotation.Nullable;
 import javax.inject.Inject;
@@ -42,6 +43,8 @@ import static android.arch.lifecycle.Lifecycle.State.STARTED;
 import static android.view.ViewGroup.LayoutParams.MATCH_PARENT;
 import static android.view.WindowManager.LayoutParams.FLAG_SECURE;
 import static android.view.inputmethod.InputMethodManager.SHOW_IMPLICIT;
+import static java.util.logging.Level.INFO;
+import static java.util.logging.Logger.getLogger;
 import static org.briarproject.briar.android.TestingConstants.PREVENT_SCREENSHOTS;
 
 /**
@@ -51,6 +54,8 @@ import static org.briarproject.briar.android.TestingConstants.PREVENT_SCREENSHOT
 public abstract class BaseActivity extends AppCompatActivity
 		implements DestroyableContext, OnTapFilteredListener {
 
+	private final static Logger LOG = getLogger(BaseActivity.class.getName());
+
 	@Inject
 	protected ScreenFilterMonitor screenFilterMonitor;
 
@@ -119,6 +124,8 @@ public abstract class BaseActivity extends AppCompatActivity
 	@Override
 	protected void onStart() {
 		super.onStart();
+		if (LOG.isLoggable(INFO))
+			LOG.info("Starting " + this.getClass().getSimpleName());
 		for (ActivityLifecycleController alc : lifecycleControllers) {
 			alc.onActivityStart();
 		}
@@ -137,6 +144,8 @@ public abstract class BaseActivity extends AppCompatActivity
 	@Override
 	protected void onStop() {
 		super.onStop();
+		if (LOG.isLoggable(INFO))
+			LOG.info("Stopping " + this.getClass().getSimpleName());
 		for (ActivityLifecycleController alc : lifecycleControllers) {
 			alc.onActivityStop();
 		}

briar-android/src/main/java/org/briarproject/briar/android/view/BriarRecyclerView.java

@@ -20,17 +20,12 @@ import android.widget.TextView;
 
 import org.briarproject.briar.R;
 
-import java.util.logging.Logger;
-
 import javax.annotation.Nullable;
 
 import static org.briarproject.briar.android.util.UiUtils.MIN_DATE_RESOLUTION;
 
 public class BriarRecyclerView extends FrameLayout {
 
-	private static final Logger LOG =
-			Logger.getLogger(BriarRecyclerView.class.getName());
-
 	private final Handler handler = new Handler(Looper.getMainLooper());
 
 	private RecyclerView recyclerView;
@@ -39,6 +34,7 @@ public class BriarRecyclerView extends FrameLayout {
 	private TextView emptyText, emptyAction;
 	private ProgressBar progressBar;
 	private RecyclerView.AdapterDataObserver emptyObserver;
+	@Nullable
 	private Runnable refresher = null;
 	private boolean isScrollingToEnd = false;
 
@@ -217,18 +213,15 @@ public class BriarRecyclerView extends FrameLayout {
 			throw new IllegalStateException("Need to call setAdapter() first!");
 		}
 		refresher = () -> {
-			LOG.info("Updating Content...");
 			Adapter adapter = recyclerView.getAdapter();
 			adapter.notifyItemRangeChanged(0, adapter.getItemCount());
 			handler.postDelayed(refresher, MIN_DATE_RESOLUTION);
 		};
-		LOG.info("Adding Handler Callback");
 		handler.postDelayed(refresher, MIN_DATE_RESOLUTION);
 	}
 
 	public void stopPeriodicUpdate() {
 		if (refresher != null) {
-			LOG.info("Removing Handler Callback");
 			handler.removeCallbacks(refresher);
 			refresher = null;
 		}