131 lines
4.3 KiB
Objective-C
131 lines
4.3 KiB
Objective-C
//
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// BaseTableView.m
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// keyBoard
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//
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#import "BaseTableView.h"
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// 可选引入：若未集成 DZNEmptyDataSet，此处不会编译进来
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#if __has_include(<DZNEmptyDataSet/UIScrollView+EmptyDataSet.h>)
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#import <DZNEmptyDataSet/UIScrollView+EmptyDataSet.h>
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#define KB_HAS_DZN 1
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#else
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#define KB_HAS_DZN 0
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#endif
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@interface BaseTableView ()
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#if KB_HAS_DZN
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<DZNEmptyDataSetSource, DZNEmptyDataSetDelegate>
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#endif
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@end
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@implementation BaseTableView
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- (instancetype)initWithFrame:(CGRect)frame style:(UITableViewStyle)style {
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if (self = [super initWithFrame:frame style:style]) {
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[self commonInit];
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}
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return self;
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}
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- (void)commonInit {
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// iOS 15+ 头部默认留白，统一归零（老系统无此属性，不会影响）
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self.sectionHeaderTopPadding = 0;
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self.backgroundColor = [UIColor whiteColor];
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self.separatorStyle = UITableViewCellSeparatorStyleSingleLine;
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self.estimatedRowHeight = 0;
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self.estimatedSectionHeaderHeight = 0;
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self.estimatedSectionFooterHeight = 0;
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self.keyboardDismissMode = UIScrollViewKeyboardDismissModeOnDrag;
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// 空数据占位默认配置（保持“活”的：可开可关）
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_useEmptyDataSet = YES; // 默认开启
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_emptyShouldAllowScroll = YES; // 默认允许滚动
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_emptyVerticalOffset = 0; // 默认不偏移
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_emptyTitleText = @"暂无数据"; // 默认标题
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#if KB_HAS_DZN
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self.emptyDataSetSource = self;
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self.emptyDataSetDelegate = self;
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#endif
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}
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#pragma mark - Public
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- (void)kb_reloadEmptyDataSet {
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#if KB_HAS_DZN
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[self reloadEmptyDataSet];
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#endif
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}
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- (void)setUseEmptyDataSet:(BOOL)useEmptyDataSet {
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_useEmptyDataSet = useEmptyDataSet;
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#if KB_HAS_DZN
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// 切换时，动态挂/卸源委托
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self.emptyDataSetSource = useEmptyDataSet ? (id<DZNEmptyDataSetSource>)self : nil;
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self.emptyDataSetDelegate = useEmptyDataSet ? (id<DZNEmptyDataSetDelegate>)self : nil;
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[self reloadEmptyDataSet];
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#endif
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}
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#pragma mark - DZNEmptyDataSet (仅当库存在时编译)
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#if KB_HAS_DZN
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// 是否展示空视图
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- (BOOL)emptyDataSetShouldDisplay:(UIScrollView *)scrollView {
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return self.useEmptyDataSet;
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}
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// 标题
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- (NSAttributedString *)titleForEmptyDataSet:(UIScrollView *)scrollView {
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NSString *title = self.emptyTitleText ?: @"";
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NSDictionary *attrs = @{ NSFontAttributeName : [UIFont systemFontOfSize:16 weight:UIFontWeightSemibold],
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NSForegroundColorAttributeName : [UIColor colorWithWhite:0.5 alpha:1.0] };
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return [[NSAttributedString alloc] initWithString:title attributes:attrs];
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}
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// 描述
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- (NSAttributedString *)descriptionForEmptyDataSet:(UIScrollView *)scrollView {
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if (self.emptyDescriptionText.length == 0) return nil;
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NSDictionary *attrs = @{ NSFontAttributeName : [UIFont systemFontOfSize:14],
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NSForegroundColorAttributeName : [UIColor colorWithWhite:0.6 alpha:1.0] };
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return [[NSAttributedString alloc] initWithString:self.emptyDescriptionText attributes:attrs];
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}
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// 图片
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- (UIImage *)imageForEmptyDataSet:(UIScrollView *)scrollView {
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return self.emptyImage;
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}
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// 按钮标题
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- (NSAttributedString *)buttonTitleForEmptyDataSet:(UIScrollView *)scrollView forState:(UIControlState)state {
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if (self.emptyButtonTitle.length == 0) return nil;
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UIColor *color = (state == UIControlStateHighlighted) ? [UIColor darkTextColor] : [UIColor colorWithRed:0.22 green:0.49 blue:0.96 alpha:1.0];
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NSDictionary *attrs = @{ NSFontAttributeName : [UIFont systemFontOfSize:15 weight:UIFontWeightSemibold],
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NSForegroundColorAttributeName : color };
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return [[NSAttributedString alloc] initWithString:self.emptyButtonTitle attributes:attrs];
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}
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// 垂直位置偏移
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- (CGFloat)verticalOffsetForEmptyDataSet:(UIScrollView *)scrollView {
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return self.emptyVerticalOffset;
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}
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// 行为
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- (BOOL)emptyDataSetShouldAllowScroll:(UIScrollView *)scrollView { return self.emptyShouldAllowScroll; }
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- (BOOL)emptyDataSetShouldAllowTouch:(UIScrollView *)scrollView { return YES; }
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- (void)emptyDataSet:(UIScrollView *)scrollView didTapView:(UIView *)view {
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if (self.emptyDidTapView) self.emptyDidTapView();
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}
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- (void)emptyDataSet:(UIScrollView *)scrollView didTapButton:(UIButton *)button {
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if (self.emptyDidTapButton) self.emptyDidTapButton();
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}
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#endif
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@end
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