Display encrypted notification logs

app/src/main/java/se/ajpanton/notificationlog/MainActivity.kt

@@ -95,8 +95,11 @@ class MainActivity : AppCompatActivity(), NavigationView.OnNavigationItemSelecte
         supportFragmentManager.commit {
             replace(
                 R.id.content_frame,
-                page.loggingType?.let { EventSettingsFragment.newInstance(page.titleRes, it) }
+                when {
-                    ?: PageFragment.newInstance(page.titleRes),
+                    page == Page.VIEW_LOGS -> ViewLogsFragment()
+                    page.loggingType != null -> EventSettingsFragment.newInstance(page.titleRes, page.loggingType)
+                    else -> PageFragment.newInstance(page.titleRes)
+                },
             )
             runOnCommit(::applyPageTitleVisibility)
         }

app/src/main/java/se/ajpanton/notificationlog/ViewLogsFragment.kt

@@ -0,0 +1,59 @@
+package se.ajpanton.notificationlog
+
+import android.os.Bundle
+import android.view.View
+import android.widget.TextView
+import androidx.fragment.app.Fragment
+import com.google.android.material.dialog.MaterialAlertDialogBuilder
+import se.ajpanton.notificationlog.data.EncryptedNotificationLogStore
+import se.ajpanton.notificationlog.databinding.FragmentViewLogsBinding
+import se.ajpanton.notificationlog.model.NotificationLogEntry
+import java.text.DateFormat
+import java.util.Date
+
+class ViewLogsFragment : Fragment(R.layout.fragment_view_logs) {
+    private var binding: FragmentViewLogsBinding? = null
+
+    override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
+        super.onViewCreated(view, savedInstanceState)
+        binding = FragmentViewLogsBinding.bind(view)
+        binding!!.clearLogs.setOnClickListener {
+            MaterialAlertDialogBuilder(requireContext())
+                .setTitle("Clear logs?")
+                .setMessage("This permanently removes every stored notification log.")
+                .setNegativeButton("Cancel", null)
+                .setPositiveButton("Clear") { _, _ ->
+                    EncryptedNotificationLogStore(requireContext()).clear()
+                    loadLogs()
+                }
+                .show()
+        }
+        loadLogs()
+    }
+
+    override fun onDestroyView() { binding = null; super.onDestroyView() }
+
+    private fun loadLogs() {
+        val context = requireContext().applicationContext
+        Thread {
+            val entries = EncryptedNotificationLogStore(context).readAll().sortedByDescending { it.recordedAtEpochMillis }
+            activity?.runOnUiThread { binding?.let { render(it, entries) } }
+        }.start()
+    }
+
+    private fun render(view: FragmentViewLogsBinding, entries: List<NotificationLogEntry>) {
+        view.logRows.removeAllViews()
+        view.emptyView.visibility = if (entries.isEmpty()) View.VISIBLE else View.GONE
+        entries.forEach { entry ->
+            view.logRows.addView(TextView(requireContext()).apply {
+                text = listOfNotNull(
+                    DateFormat.getDateTimeInstance().format(Date(entry.recordedAtEpochMillis)),
+                    entry.appName,
+                    entry.action.name.lowercase().replace('_', ' '),
+                    entry.contents,
+                ).joinToString(" · ")
+                setPadding(0, 12, 0, 12)
+            })
+        }
+    }
+}

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

@@ -0,0 +1,10 @@
+<?xml version="1.0" encoding="utf-8"?>
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:layout_height="match_parent" android:orientation="vertical" android:padding="@dimen/page_padding">
+ <Button android:id="@+id/clear_logs" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="Clear logs" />
+ <ScrollView android:layout_width="match_parent" android:layout_height="0dp" android:layout_weight="1">
+  <LinearLayout android:layout_width="match_parent" android:layout_height="wrap_content" android:orientation="vertical">
+   <TextView android:id="@+id/empty_view" android:layout_width="match_parent" android:layout_height="wrap_content" android:layout_marginTop="24dp" android:text="No logs yet." />
+   <LinearLayout android:id="@+id/log_rows" android:layout_width="match_parent" android:layout_height="wrap_content" android:orientation="vertical" />
+  </LinearLayout>
+ </ScrollView>
+</LinearLayout>