android: make it look more like an actual app

android/src/main/kotlin/dev/msfjarvis/claw/android/MainActivity.kt

@@ -4,11 +4,16 @@ import android.os.Bundle
 import androidx.activity.compose.setContent
 import androidx.appcompat.app.AppCompatActivity
 import androidx.compose.foundation.isSystemInDarkTheme
+import androidx.compose.foundation.layout.padding
+import androidx.compose.material.Scaffold
+import androidx.compose.material.rememberScaffoldState
+import androidx.compose.ui.Modifier
 import androidx.paging.Pager
 import androidx.paging.PagingConfig
 import androidx.paging.compose.collectAsLazyPagingItems
 import dagger.hilt.android.AndroidEntryPoint
 import dev.msfjarvis.claw.android.paging.LobstersPagingSource
+import dev.msfjarvis.claw.android.ui.ClawAppBar
 import dev.msfjarvis.claw.android.ui.NetworkPosts
 import dev.msfjarvis.claw.api.LobstersApi
 import dev.msfjarvis.claw.common.theme.LobstersTheme
@@ -18,18 +23,27 @@ import javax.inject.Inject
 @AndroidEntryPoint
 class MainActivity : AppCompatActivity() {
   @Inject lateinit var api: LobstersApi
+
   @Inject lateinit var urlLauncher: UrlLauncher
 
   override fun onCreate(savedInstanceState: Bundle?) {
     super.onCreate(savedInstanceState)
     val pager = Pager(PagingConfig(20)) { LobstersPagingSource(api::getHottestPosts) }
     setContent {
+      val scaffoldState = rememberScaffoldState()
       LobstersTheme(darkTheme = isSystemInDarkTheme()) {
         val items = pager.flow.collectAsLazyPagingItems()
-        NetworkPosts(
-          items = items,
-          urlLauncher = urlLauncher,
-        )
+        Scaffold(
+          scaffoldState = scaffoldState,
+          topBar = { ClawAppBar() },
+          modifier = Modifier,
+        ) { padding ->
+          NetworkPosts(
+            items = items,
+            urlLauncher = urlLauncher,
+            modifier = Modifier.padding(padding),
+          )
+        }
       }
     }
   }

android/src/main/kotlin/dev/msfjarvis/claw/android/ui/TopAppBar.kt

@@ -0,0 +1,27 @@
+package dev.msfjarvis.claw.android.ui
+
+import androidx.compose.foundation.layout.padding
+import androidx.compose.material.Text
+import androidx.compose.material.TopAppBar
+import androidx.compose.runtime.Composable
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.res.stringResource
+import androidx.compose.ui.text.font.FontWeight
+import androidx.compose.ui.unit.dp
+import dev.msfjarvis.claw.android.R
+
+@Composable
+fun ClawAppBar(
+  modifier: Modifier = Modifier,
+) {
+  TopAppBar(
+    title = {
+      Text(
+        text = stringResource(R.string.app_name),
+        fontWeight = FontWeight.Bold,
+        modifier = Modifier.padding(horizontal = 16.dp),
+      )
+    },
+    modifier = Modifier.then(modifier),
+  )
+}