feat: FAB 菜单添加"工具"入口，跳转空白工具页面

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

app/src/main/AndroidManifest.xml

@@ -26,6 +26,10 @@
         <activity
             android:name=".LicensesActivity"
             android:exported="false" />
+
+        <activity
+            android:name=".ToolsActivity"
+            android:exported="false" />
     </application>
 
 </manifest>

app/src/main/kotlin/plus/rua/project/MainActivity.kt

@@ -22,6 +22,13 @@ class MainActivity : ComponentActivity() {
                         @Suppress("DEPRECATION")
                         overridePendingTransition(R.anim.slide_in_right, R.anim.slide_out_left)
                     }
+                },
+                onNavigateToTools = {
+                    startActivity(Intent(this, ToolsActivity::class.java))
+                    if (Build.VERSION.SDK_INT < Build.VERSION_CODES.UPSIDE_DOWN_CAKE) {
+                        @Suppress("DEPRECATION")
+                        overridePendingTransition(R.anim.slide_in_right, R.anim.slide_out_left)
+                    }
                 }
             )
         }

app/src/main/kotlin/plus/rua/project/ToolsActivity.kt

@@ -0,0 +1,40 @@
+package plus.rua.project
+
+import android.os.Build
+import android.os.Bundle
+import androidx.activity.ComponentActivity
+import androidx.activity.compose.setContent
+import androidx.activity.enableEdgeToEdge
+import plus.rua.project.ui.ToolsScreen
+
+class ToolsActivity : ComponentActivity() {
+    override fun onCreate(savedInstanceState: Bundle?) {
+        enableEdgeToEdge()
+        super.onCreate(savedInstanceState)
+
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.UPSIDE_DOWN_CAKE) {
+            overrideActivityTransition(
+                OVERRIDE_TRANSITION_OPEN,
+                R.anim.slide_in_right,
+                R.anim.slide_out_left
+            )
+            overrideActivityTransition(
+                OVERRIDE_TRANSITION_CLOSE,
+                R.anim.slide_in_left,
+                R.anim.slide_out_right
+            )
+        }
+
+        setContent {
+            ToolsScreen(
+                onBack = {
+                    finish()
+                    if (Build.VERSION.SDK_INT < Build.VERSION_CODES.UPSIDE_DOWN_CAKE) {
+                        @Suppress("DEPRECATION")
+                        overridePendingTransition(R.anim.slide_in_left, R.anim.slide_out_right)
+                    }
+                }
+            )
+        }
+    }
+}

core/src/main/kotlin/plus/rua/project/ui/CalendarMonthView.kt

@@ -94,7 +94,8 @@ import androidx.lifecycle.viewmodel.compose.viewModel
 @Composable
 fun CalendarMonthView(
     modifier: Modifier = Modifier,
-    onNavigateToAbout: () -> Unit = {}
+    onNavigateToAbout: () -> Unit = {},
+    onNavigateToTools: () -> Unit = {}
 ) {
     val viewModel = viewModel<CalendarViewModel>()
     val today = remember { Clock.System.todayIn(TimeZone.currentSystemDefault()) }
@@ -401,6 +402,14 @@ fun CalendarMonthView(
                         color = MaterialTheme.colorScheme.outlineVariant,
                         modifier = Modifier.padding(horizontal = 8.dp)
                     )
+                    MenuItem(
+                        text = "工具",
+                        selected = false,
+                        onClick = {
+                            isMenuExpanded = false
+                            onNavigateToTools()
+                        }
+                    )
                     MenuItem(
                         text = "关于",
                         selected = false,

core/src/main/kotlin/plus/rua/project/ui/ToolsScreen.kt

@@ -0,0 +1,76 @@
+package plus.rua.project.ui
+
+import androidx.compose.foundation.Canvas
+import androidx.compose.foundation.layout.Box
+import androidx.compose.foundation.layout.fillMaxSize
+import androidx.compose.foundation.layout.padding
+import androidx.compose.foundation.layout.size
+import androidx.compose.material3.ExperimentalMaterial3Api
+import androidx.compose.material3.IconButton
+import androidx.compose.material3.MaterialTheme
+import androidx.compose.material3.Scaffold
+import androidx.compose.material3.Text
+import androidx.compose.material3.TopAppBar
+import androidx.compose.runtime.Composable
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.geometry.Offset
+import androidx.compose.ui.graphics.StrokeCap
+import androidx.compose.ui.unit.dp
+
+/**
+ * 工具页面，提供实用工具功能入口。
+ *
+ * @param onBack 返回回调
+ * @param modifier 布局修饰符
+ */
+@OptIn(ExperimentalMaterial3Api::class)
+@Composable
+fun ToolsScreen(
+    onBack: () -> Unit,
+    modifier: Modifier = Modifier
+) {
+    Scaffold(
+        topBar = {
+            TopAppBar(
+                title = { Text("工具") },
+                navigationIcon = {
+                    IconButton(onClick = onBack) {
+                        val arrowColor = MaterialTheme.colorScheme.onSurface
+                        Canvas(modifier = Modifier.size(24.dp)) {
+                            val strokeWidth = 2.dp.toPx()
+                            drawLine(
+                                color = arrowColor,
+                                start = Offset(size.width * 0.75f, size.height * 0.15f),
+                                end = Offset(size.width * 0.25f, size.height * 0.5f),
+                                strokeWidth = strokeWidth,
+                                cap = StrokeCap.Round
+                            )
+                            drawLine(
+                                color = arrowColor,
+                                start = Offset(size.width * 0.25f, size.height * 0.5f),
+                                end = Offset(size.width * 0.75f, size.height * 0.85f),
+                                strokeWidth = strokeWidth,
+                                cap = StrokeCap.Round
+                            )
+                        }
+                    }
+                }
+            )
+        },
+        modifier = modifier
+    ) { innerPadding ->
+        Box(
+            modifier = Modifier
+                .fillMaxSize()
+                .padding(innerPadding),
+            contentAlignment = Alignment.Center
+        ) {
+            Text(
+                text = "敬请期待",
+                style = MaterialTheme.typography.bodyLarge,
+                color = MaterialTheme.colorScheme.onSurfaceVariant
+            )
+        }
+    }
+}