Add auto-calculate bottomline width function.

Signed-off-by: RamWire <fy.zhao@renrunkeji.com>
liusong00621 · Nov 2, 2016 · 74b83a4 · 74b83a4
1 parent 1b9256b
commit 74b83a4
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Showing 4 changed files with 27 additions and 1 deletion.
diff --git a/NinaPagerView/NinaBaseView.h b/NinaPagerView/NinaBaseView.h
@@ -38,6 +38,7 @@
 @property (assign, nonatomic) CGFloat topHeight; /**< TopTab高度 **/
 @property (assign, nonatomic) BOOL topTabUnderLineHidden; /**< 是否显示下方的下划线 **/
 @property (assign, nonatomic) BOOL slideEnabled; /**< 允许下方左右滑动 **/
+@property (assign, nonatomic) BOOL autoFitTitleLine; /**< 下划线是否自适应标题宽度 **/
 @property (strong, nonatomic) UIColor *btnUnSelectColor; /**< 未选中的标题颜色 **/
 @property (strong, nonatomic) UIColor *btnSelectColor; /**< 选中的标题颜色 **/
 @property (strong, nonatomic) UIColor *underlineBlockColor; /**< 下划线或滑块颜色 **/

diff --git a/NinaPagerView/NinaBaseView.m b/NinaPagerView/NinaBaseView.m
@@ -28,6 +28,7 @@ @implementation NinaBaseView
     UIView *lineBottom;
     UIView *topTabBottomLine;
     NSMutableArray *btnArray;
+    NSMutableArray *bottomLineWidthArray;
     NSInteger topTabType;
     UIView *ninaMaskView;
 }
@@ -81,6 +82,10 @@ - (void)setSlideEnabled:(BOOL)slideEnabled {
     _slideEnabled = slideEnabled;
 }
 
+- (void)setAutoFitTitleLine:(BOOL)autoFitTitleLine {
+    _autoFitTitleLine = autoFitTitleLine;
+}
+
 - (void)setTopHeight:(CGFloat)topHeight {
     _topHeight = topHeight;
 }
@@ -150,11 +155,13 @@ - (UIScrollView *)topTab {
             }
         }
         btnArray = [NSMutableArray array];
+        bottomLineWidthArray = [NSMutableArray array];
         for (NSInteger i = 0; i < _titleArray.count; i++) {
             UIButton *button = [UIButton buttonWithType:UIButtonTypeCustom];
             button.tag = i;
             button.titleLabel.font = [UIFont systemFontOfSize:_titlesFont];
             if ([_titleArray[i] isKindOfClass:[NSString class]]) {
+                [bottomLineWidthArray addObject:[NSString stringWithFormat:@"%f",[_titleArray[i] sizeWithAttributes:@{NSFontAttributeName:[UIFont systemFontOfSize:_titlesFont]}].width]];
                 [button setTitle:_titleArray[i] forState:UIControlStateNormal];
                 button.titleLabel.numberOfLines = 0;
                 button.titleLabel.textAlignment = NSTextAlignmentCenter;
@@ -249,6 +256,9 @@ - (void)scrollViewDidScroll:(UIScrollView *)scrollView {
         if (_titleArray.count > 5) {
             yourCount = 1.0 / 5.0;
         }
+        if (_autoFitTitleLine) {
+            _bottomLinePer = [bottomLineWidthArray[yourPage] floatValue] / (FUll_VIEW_WIDTH * yourCount);
+        }
         CGFloat lineBottomDis = yourCount * FUll_VIEW_WIDTH * (1 -_bottomLinePer) / 2;
         if (topTabType == 1) {
             CGPoint maskCenter = ninaMaskView.center;
@@ -344,6 +354,9 @@ - (void)initUI {
         additionCount = (_titleArray.count - 5.0) / 5.0;
         yourCount = 1.0 / 5.0;
     }
+    if (_autoFitTitleLine) {
+        _bottomLinePer = [bottomLineWidthArray[0] floatValue] / (FUll_VIEW_WIDTH * yourCount);
+    }
     CGFloat lineBottomDis = yourCount * FUll_VIEW_WIDTH * (1 -_bottomLinePer) / 2;
     NSInteger defaultPage = (_baseDefaultPage > 0 && _baseDefaultPage < _titleArray.count)?_baseDefaultPage:0;
     switch (topTabType) {

diff --git a/NinaPagerView/NinaPagerView.h b/NinaPagerView/NinaPagerView.h
@@ -157,6 +157,11 @@ typedef NS_ENUM(NSInteger, NinaPagerStyle) {
  *  Able to scroll scrollview in main view,default is YES.
  **/
 @property (assign, nonatomic) BOOL nina_scrollEnabled;
+/**<
+ *  是否选择自适应下划线长度(与当前标题文字长度相同)，默认为NO，如果设置了selectBottomLinePer属性，此属性将不起作用。
+ *  Auto-calculate bottomline's width,the same with current title's width,default is NO,if you set selectBottomLinePer,this property will not work.
+ **/
+@property (assign, nonatomic) BOOL nina_autoBottomLineEnable;
 
 @property (weak, nonatomic) id<NinaPagerViewDelegate>delegate; /**< NinaPagerView代理 **/
 

diff --git a/NinaPagerView/NinaPagerView.m b/NinaPagerView/NinaPagerView.m
@@ -32,6 +32,7 @@ @interface NinaPagerView()<NSCacheDelegate>
 @property (nonatomic, strong) NSCache *limitControllerCache; /**<  缓存限制   **/
 @property (nonatomic, strong) NinaBaseView *ninaBaseView; /**<  创建NinaBaseView   **/
 @property (nonatomic, assign) BOOL hasSettingScrollEnabled;
+@property (nonatomic, assign) BOOL hasSettingLinePer;
 @end
 
 @implementation NinaPagerView
@@ -89,6 +90,7 @@ - (void)setSliderHeight:(CGFloat)sliderHeight {
 
 - (void)setSelectBottomLinePer:(CGFloat)selectBottomLinePer {
     _selectBottomLinePer = selectBottomLinePer;
+    _hasSettingLinePer = YES;
 }
 
 - (void)setSelectBottomLineHeight:(CGFloat)selectBottomLineHeight {
@@ -108,6 +110,10 @@ - (void)setNina_scrollEnabled:(BOOL)nina_scrollEnabled {
     _hasSettingScrollEnabled = YES;
 }
 
+- (void)setNina_autoBottomLineEnable:(BOOL)nina_autoBottomLineEnable {
+    _nina_autoBottomLineEnable = nina_autoBottomLineEnable;
+}
+
 - (void)setTopTabHeight:(CGFloat)topTabHeight {
     _topTabHeight = topTabHeight;
 }
@@ -162,7 +168,8 @@ - (void)loadDataForView {
     self.ninaBaseView.topTabUnderLineHidden = _underLineHidden;
     self.ninaBaseView.slideEnabled = _hasSettingScrollEnabled?_nina_scrollEnabled:YES;
     self.ninaBaseView.blockHeight = _sliderHeight > 0?_sliderHeight:tabHeight;
-    self.ninaBaseView.bottomLinePer = _selectBottomLinePer > 0?_selectBottomLinePer:1;
+    self.ninaBaseView.bottomLinePer = (_selectBottomLinePer > 0 && _selectBottomLinePer < 1 && _hasSettingLinePer)?_selectBottomLinePer:1;
+    self.ninaBaseView.autoFitTitleLine = (_nina_autoBottomLineEnable && !_hasSettingLinePer)?_nina_autoBottomLineEnable:NO;
     self.ninaBaseView.bottomLineHeight = _selectBottomLineHeight > 0?_selectBottomLineHeight:2;
     self.ninaBaseView.sliderCornerRadius = _slideBlockCornerRadius > 0?_slideBlockCornerRadius:0;
     self.ninaBaseView.titleArray = titlesArray;