更换AI皮肤逻辑图片 + 更换placeholdimage

CustomKeyboard/View/KBKeyBoardMainView.m

@@ -208,6 +208,9 @@
     UIColor *bg = mgr.current.keyboardBackground;
     self.backgroundColor = hasImg ? [UIColor clearColor] : bg;
     self.keyboardView.backgroundColor = hasImg ? [UIColor clearColor] : bg;
+    if ([self.topBar respondsToSelector:@selector(kb_applyTheme)]) {
+        [self.topBar kb_applyTheme];
+    }
     [self.keyboardView reloadKeys];
     if (self.emojiView) {
         [self.emojiView applyTheme:mgr.current];

CustomKeyboard/View/KBToolBar.h

@@ -34,6 +34,9 @@ NS_ASSUME_NONNULL_BEGIN
 @property (nonatomic, strong, readonly) UIButton *settingsButton;
 @property (nonatomic, strong, readonly) UIButton *undoButton;
 
+/// 应用皮肤（更新 AI 按钮背景图）
+- (void)kb_applyTheme;
+
 @end
 
 NS_ASSUME_NONNULL_END

CustomKeyboard/View/KBToolBar.m

@@ -8,6 +8,7 @@
 #import "KBToolBar.h"
 #import "KBResponderUtils.h" // 查找 UIInputViewController，用于系统切换输入法
 #import "KBBackspaceUndoManager.h"
+#import "KBSkinManager.h"
 
 @interface KBToolBar ()
 @property (nonatomic, strong) UIView *leftContainer;
@@ -21,6 +22,10 @@
 
 @implementation KBToolBar
 
+static NSString * const kKBAIKeyIdentifier = @"ai";
+static const CGFloat kKBAIButtonWidth = 36.0f;
+static const CGFloat kKBAIButtonHeight = 36.0f;
+
 - (instancetype)initWithFrame:(CGRect)frame{
     if (self = [super initWithFrame:frame]) {
         self.backgroundColor = [UIColor clearColor];
@@ -61,6 +66,7 @@
             [obj setTitle:self.leftButtonTitles[idx] forState:UIControlStateNormal];
         }
     }];
+    [self kb_updateAIButtonAppearance];
 }
 
 #pragma mark - 视图搭建
@@ -103,7 +109,13 @@
         [buttons addObject:btn];
 
         [btn mas_makeConstraints:^(MASConstraintMaker *make) {
-            make.top.bottom.equalTo(self.leftContainer);
+            if (i == 1) {
+                make.centerY.equalTo(self.leftContainer);
+                make.width.mas_equalTo(kKBAIButtonWidth);
+                make.height.mas_equalTo(kKBAIButtonHeight);
+            } else {
+                make.top.bottom.equalTo(self.leftContainer);
+            }
 
             if (previous) {
                 make.left.equalTo(previous.mas_right).offset(8);
@@ -129,6 +141,7 @@
     // 初始刷新地球键的可见性与事件绑定
     [self kb_refreshGlobeVisibility];
     [self kb_updateUndoVisibilityAnimated:NO];
+    [self kb_applyTheme];
 }
 
 - (UIButton *)buildActionButtonAtIndex:(NSInteger)idx {
@@ -152,6 +165,46 @@
     return btn;
 }
 
+#pragma mark - Theme
+
+- (void)kb_applyTheme {
+    [self kb_updateAIButtonAppearance];
+}
+
+- (void)kb_updateAIButtonAppearance {
+    UIButton *aiButton = [self kb_aiButton];
+    if (!aiButton) { return; }
+
+    KBSkinManager *skinManager = [KBSkinManager shared];
+    UIImage *icon = [skinManager iconImageForKeyIdentifier:kKBAIKeyIdentifier caseVariant:0];
+    NSString *skinId = skinManager.current.skinId ?: @"";
+    BOOL usingDefaultSkin = (skinId.length == 0 || [skinId isEqualToString:@"default"]);
+    if (!icon && usingDefaultSkin) {
+        icon = [UIImage imageNamed:@"ai_key_icon"];
+    }
+
+    if (icon) {
+        [aiButton setBackgroundImage:icon forState:UIControlStateNormal];
+        [aiButton setBackgroundImage:icon forState:UIControlStateHighlighted];
+        [aiButton setBackgroundImage:icon forState:UIControlStateSelected];
+        [aiButton setTitle:@"" forState:UIControlStateNormal];
+        aiButton.backgroundColor = [UIColor clearColor];
+        aiButton.layer.cornerRadius = 0;
+        aiButton.layer.masksToBounds = NO;
+        aiButton.contentEdgeInsets = UIEdgeInsetsZero;
+    } else {
+        [aiButton setBackgroundImage:nil forState:UIControlStateNormal];
+        [aiButton setBackgroundImage:nil forState:UIControlStateHighlighted];
+        [aiButton setBackgroundImage:nil forState:UIControlStateSelected];
+        NSString *title = (self.leftButtonTitles.count > 1) ? self.leftButtonTitles[1] : @"AI";
+        [aiButton setTitle:title forState:UIControlStateNormal];
+        aiButton.backgroundColor = [UIColor colorWithWhite:1 alpha:0.9];
+        aiButton.layer.cornerRadius = 16;
+        aiButton.layer.masksToBounds = YES;
+        aiButton.contentEdgeInsets = UIEdgeInsetsMake(0, 10, 0, 10);
+    }
+}
+
 #pragma mark - Actions
 
 - (void)onLeftAction:(UIButton *)sender {
@@ -224,6 +277,11 @@
     return _undoButtonInternal;
 }
 
+- (UIButton *)kb_aiButton {
+    if (self.leftButtonsInternal.count <= 1) { return nil; }
+    return self.leftButtonsInternal[1];
+}
+
 #pragma mark - Globe (Input Mode Switch)
 
 // 根据宿主是否已提供系统切换键，决定是否显示地球按钮；并绑定系统事件。

keyBoard/Assets.xcassets/Ohter/placeholder_image_icon.imageset/Contents.json

@@ -0,0 +1,22 @@
+{
+  "images" : [
+    {
+      "idiom" : "universal",
+      "scale" : "1x"
+    },
+    {
+      "filename" : "placeholder_image_icon@2x.png",
+      "idiom" : "universal",
+      "scale" : "2x"
+    },
+    {
+      "filename" : "placeholder_image_icon@3x.png",
+      "idiom" : "universal",
+      "scale" : "3x"
+    }
+  ],
+  "info" : {
+    "author" : "xcode",
+    "version" : 1
+  }
+}

keyBoard/Class/Home/V/HomeHotCell.m

@@ -85,7 +85,7 @@
     self.titleLabel.text = character.characterName ?: @"";
     self.subLabel.text = character.download ?: @"";
 
-    [self.avatarView kb_setAvatarURL:character.avatarUrl placeholder:KBPlaceholderImage];
+    [self.avatarView kb_setAvatarURL:character.avatarUrl placeholder:KBAvatarPlaceholderImage];
 
     // 加入状态
     BOOL joined = character.added;

keyBoard/Class/Home/V/HomeRankCardCell.m

@@ -115,7 +115,7 @@
     self.titleLabel.text = character.characterName;
     self.descLabel.text = character.characterBackground;
     self.peopleLabel.text = character.download;
-    [self.averImageView kb_setAvatarURL:character.avatarUrl placeholder:KBPlaceholderImage];
+    [self.averImageView kb_setAvatarURL:character.avatarUrl placeholder:KBAvatarPlaceholderImage];
     if (added) {
         // 已添加：灰底、对勾
         self.actionBtn.backgroundColor = [UIColor colorWithWhite:0.93 alpha:1.0];

keyBoard/Class/Home/V/HomeRankDetailPopView.m

@@ -58,7 +58,7 @@
     self.titleLabel.text = character.characterName ?: @"";
     self.downloadLabel.text = character.download ?: @"";
     self.descLabel.text = character.characterBackground ?: @"";
-    [self.avatarView kb_setImageURL:character.avatarUrl placeholder:KBPlaceholderImage];
+    [self.avatarView kb_setImageURL:character.avatarUrl placeholder:KBAvatarPlaceholderImage];
 }
 
 #pragma mark - Build UI

keyBoard/Class/Home/V/KBTopThreeView.m

@@ -84,7 +84,7 @@
     self.cardImageView.image = image;
 
     // 头像图片
-    [self.avatarCircleView kb_setAvatarURL:character.avatarUrl placeholder:KBPlaceholderImage];
+    [self.avatarCircleView kb_setAvatarURL:character.avatarUrl placeholder:KBAvatarPlaceholderImage];
 
     // 圆圈描边
     self.avatarCircleView.layer.borderColor = [UIColor colorWithRed:0.83 green:0.95 blue:0.27 alpha:1.0].CGColor;

keyBoard/Class/Me/V/KBMyHeaderView.m

@@ -128,7 +128,7 @@
     self.nameLabel.text = name;
 
     // 头像：使用通用占位图
-    [self.avatarView kb_setAvatarURL:user.avatarUrl placeholder:KBPlaceholderImage];
+    [self.avatarView kb_setAvatarURL:user.avatarUrl placeholder:KBAvatarPlaceholderImage];
 
     BOOL isVip = user.isVip;
     self.vipIconView.hidden = !isVip;

keyBoard/Class/Me/VC/KBPersonInfoVC.m

@@ -82,7 +82,7 @@
     [self.viewModel fetchUserDetailWithCompletion:^(KBUser * _Nullable user, NSError * _Nullable error) {
         if (user) {
             weakSelf.userModel = user;
-            [weakSelf.avatarView kb_setAvatarURL:weakSelf.userModel.avatarUrl placeholder:KBPlaceholderImage];
+            [weakSelf.avatarView kb_setAvatarURL:weakSelf.userModel.avatarUrl placeholder:KBAvatarPlaceholderImage];
             weakSelf.modifyLabel.text = weakSelf.userModel.nickName;
             // 根据用户模型的 gender 显示当前性别，支持多语言
             NSString *genderText = [weakSelf kb_genderDisplayText];

keyBoard/KeyBoardPrefixHeader.pch

@@ -75,7 +75,9 @@
 #define KBUserEmailKey @"KBUserEmailKey"
 
 
-#define KBPlaceholderImage   [UIImage imageNamed:@"placeholder_icon"]
+#define KBAvatarPlaceholderImage   [UIImage imageNamed:@"placeholder_icon"]
+#define KBPlaceholderImage   [UIImage imageNamed:@"placeholder_image_icon"]
+
 
 /// UI 尺寸/设备宏
 // 屏幕尺寸