在非刘海添加地球

CustomKeyboard/View/KBFunctionBarView.m

@@ -7,12 +7,14 @@
 
 #import "KBFunctionBarView.h"
 #import "Masonry.h"
+#import "KBResponderUtils.h" // 查找 UIInputViewController，用于系统切换输入法
 
 @interface KBFunctionBarView ()
 @property (nonatomic, strong) UIView *leftContainer;   // 左侧按钮容器
 @property (nonatomic, strong) UIView *rightContainer;  // 右侧按钮容器
 @property (nonatomic, strong) NSArray<UIButton *> *leftButtonsInternal;
 @property (nonatomic, strong) NSArray<UIButton *> *rightButtonsInternal;
+@property (nonatomic, strong) UIButton *globeButtonInternal;    // 可选：系统“切换输入法”键
 @end
 
 @implementation KBFunctionBarView
@@ -38,6 +40,7 @@
 - (void)buildUI {
     // 左右两个容器，方便分别布局
     [self addSubview:self.leftContainer];
+    [self addSubview:self.globeButtonInternal];
     [self addSubview:self.rightContainer];
 
     [self.rightContainer mas_makeConstraints:^(MASConstraintMaker *make) {
@@ -46,8 +49,15 @@
         make.height.mas_equalTo(36);
     }];
 
-    [self.leftContainer mas_makeConstraints:^(MASConstraintMaker *make) {
+    // 左侧地球键（按需显示）
+    [self.globeButtonInternal mas_makeConstraints:^(MASConstraintMaker *make) {
         make.left.equalTo(self.mas_left).offset(12);
+        make.centerY.equalTo(self.mas_centerY);
+        make.width.height.mas_equalTo(32);
+    }];
+
+    [self.leftContainer mas_makeConstraints:^(MASConstraintMaker *make) {
+        make.left.equalTo(self.globeButtonInternal.mas_right).offset(8);
         make.right.equalTo(self.rightContainer.mas_left).offset(-12);
         make.centerY.equalTo(self.mas_centerY);
         make.height.mas_equalTo(36);
@@ -113,6 +123,9 @@
     }
 
     self.rightButtonsInternal = rightBtns.copy;
+
+    // 初始刷新地球键可见性与事件绑定
+    [self kb_refreshGlobeVisibility];
 }
 
 #pragma mark - Actions
@@ -158,4 +171,56 @@
     return _rightContainer;
 }
 
+- (UIButton *)globeButtonInternal {
+    if (!_globeButtonInternal) {
+        _globeButtonInternal = [UIButton buttonWithType:UIButtonTypeSystem];
+        _globeButtonInternal.layer.cornerRadius = 16;
+        _globeButtonInternal.layer.masksToBounds = YES;
+        _globeButtonInternal.backgroundColor = [UIColor colorWithWhite:1 alpha:0.9];
+        [_globeButtonInternal setTitle:@"🌐" forState:UIControlStateNormal];
+        [_globeButtonInternal setTitleColor:[UIColor blackColor] forState:UIControlStateNormal];
+    }
+    return _globeButtonInternal;
+}
+
+#pragma mark - Globe (Input Mode Switch)
+
+- (void)kb_refreshGlobeVisibility {
+    UIInputViewController *ivc = KBFindInputViewController(self);
+    BOOL needSwitchKey = YES;
+    if (ivc && [ivc respondsToSelector:@selector(needsInputModeSwitchKey)]) {
+        needSwitchKey = ivc.needsInputModeSwitchKey;
+    }
+
+    self.globeButtonInternal.hidden = !needSwitchKey;
+
+    // 左容器左约束：根据是否显示地球键动态调整
+    [self.leftContainer mas_remakeConstraints:^(MASConstraintMaker *make) {
+        if (needSwitchKey) {
+            make.left.equalTo(self.globeButtonInternal.mas_right).offset(8);
+        } else {
+            make.left.equalTo(self.mas_left).offset(12);
+        }
+        make.right.equalTo(self.rightContainer.mas_left).offset(-12);
+        make.centerY.equalTo(self.mas_centerY);
+        make.height.mas_equalTo(36);
+    }];
+
+    // 绑定系统输入法切换事件
+    [self.globeButtonInternal removeTarget:nil action:NULL forControlEvents:UIControlEventAllEvents];
+    if (needSwitchKey && ivc) {
+        SEL sel = NSSelectorFromString(@"handleInputModeListFromView:withEvent:");
+        if ([ivc respondsToSelector:sel]) {
+            [self.globeButtonInternal addTarget:ivc action:sel forControlEvents:UIControlEventAllTouchEvents];
+        } else {
+            [self.globeButtonInternal addTarget:ivc action:@selector(advanceToNextInputMode) forControlEvents:UIControlEventTouchUpInside];
+        }
+    }
+}
+
+- (void)didMoveToWindow {
+    [super didMoveToWindow];
+    [self kb_refreshGlobeVisibility];
+}
+
 @end