refactor: use enum state instead of index to switch UI in InputView

Author: WhiredPlanck

app/src/main/java/com/osfans/trime/ime/bar/QuickBar.kt

@@ -42,9 +42,14 @@ class QuickBar : KoinComponent {
         TabBarBinding.inflate(LayoutInflater.from(context))
     }
 
-    fun switchUiByIndex(index: Int) {
-        if (view.displayedChild == index) return
-        view.displayedChild = index
+    enum class State {
+        Candidate,
+        Tab,
+    }
+
+    fun switchUiByState(state: State) {
+        if (view.displayedChild == state.ordinal) return
+        view.displayedChild = state.ordinal
     }
 
     val view by lazy {

app/src/main/java/com/osfans/trime/ime/core/InputView.kt

@@ -81,9 +81,9 @@ class InputView(
         )
     }
 
-    fun switchUiByIndex(index: Int) {
-        keyboardWindow.switchUiByIndex(index)
-        quickBar.switchUiByIndex(index)
+    fun switchUiByState(state: KeyboardWindow.State) {
+        keyboardWindow.switchUiByState(state)
+        quickBar.switchUiByState(QuickBar.State.entries[state.ordinal])
     }
 
     private var showingDialog: Dialog? = null

app/src/main/java/com/osfans/trime/ime/core/Trime.java

@@ -66,6 +66,7 @@
 import com.osfans.trime.ime.keyboard.Keyboard;
 import com.osfans.trime.ime.keyboard.KeyboardSwitcher;
 import com.osfans.trime.ime.keyboard.KeyboardView;
+import com.osfans.trime.ime.keyboard.KeyboardWindow;
 import com.osfans.trime.ime.lifecycle.LifecycleInputMethodService;
 import com.osfans.trime.ime.symbol.LiquidKeyboard;
 import com.osfans.trime.ime.symbol.TabManager;
@@ -316,7 +317,7 @@ public void inputSymbol(final String text) {
   public void selectLiquidKeyboard(final int tabIndex) {
     if (inputView == null) return;
     if (tabIndex >= 0) {
-      inputView.switchUiByIndex(1);
+      inputView.switchUiByState(KeyboardWindow.State.Symbol);
 
       symbolKeyboardType = liquidKeyboard.select(tabIndex);
       tabView.updateTabWidth();
@@ -328,7 +329,7 @@ public void selectLiquidKeyboard(final int tabIndex) {
       symbolKeyboardType = SymbolKeyboardType.NO_KEY;
       // 设置液体键盘处于隐藏状态
       TabManager.get().setTabExited();
-      inputView.switchUiByIndex(0);
+      inputView.switchUiByState(KeyboardWindow.State.Main);
       updateComposing();
     }
   }
@@ -440,7 +441,7 @@ public void resetCandidate() {
   /** 重置鍵盤、候選條、狀態欄等 !!注意，如果其中調用Rime.setOption，切換方案會卡住 */
   private void reset() {
     if (inputView == null) return;
-    inputView.switchUiByIndex(0);
+    inputView.switchUiByState(KeyboardWindow.State.Main);
     loadConfig();
     updateDarkMode();
     final Theme theme = Theme.get(darkMode);

app/src/main/java/com/osfans/trime/ime/keyboard/KeyboardWindow.kt

@@ -32,9 +32,14 @@ class KeyboardWindow : KoinComponent {
         SymbolInputLayoutBinding.inflate(LayoutInflater.from(context))
     }
 
-    fun switchUiByIndex(index: Int) {
-        if (view.displayedChild == index) return
-        view.displayedChild = index
+    enum class State {
+        Main,
+        Symbol,
+    }
+
+    fun switchUiByState(state: State) {
+        if (view.displayedChild == state.ordinal) return
+        view.displayedChild = state.ordinal
     }
 
     val view by lazy {