PYTableMainView
由于开发中经常需要修改tableView的组（cell）的顺序，或者控制组（cell）的显示与隐藏，
尴尬的是判断顺序的逻辑每次都至少要在以下地方修改
/// 得到 cell、header、footer - (nullable __kindof UITableViewCell *)cellForRowAtIndexPath:(NSIndexPath *)indexPath; - (nullable UIView *)tableView:(UITableView *)tableView viewForFooterInSection:(NSInteger)section; - (nullable UIView *)tableView:(UITableView *)tableView viewForHeaderInSection:(NSInteger)section; /// cell、header、footer 计算高度 - (CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath; - (CGFloat)tableView:(UITableView *)tableView heightForFooterInSection:(NSInteger)section; - (CGFloat)tableView:(UITableView *)tableView heightForHeaderInSection:(NSInteger)section; /// cell 点击事件 - (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath; 复制代码代码及其冗余，而且不聚合。不好维护
于是封装了
PYTableMainView
PYTableMainView位于PYKit库中的PYBaseView库
你可以这样引入 pod PYBaseView
特点
-
高聚合代码。
-
抛弃了组的限制，用类型或者
key来区分cell、header、footer -
懒加载形式自动缓存每个
cell、header、footer的frame-
如果你发现缓存的
frame不准确：-
没有调用
PYTableMainView的reloadData。你可以调用- (void) reloadIndexPathFrameCatch强制刷新缓存。 -
设置了
tableView的 预估行高属性或实现了相应的代理，请设置成0estimatedSectionHeaderHeightestimatedSectionFooterHeightestimatedRowHeight
-
-
-
动态注册
header、cell、footer
思路
- 封装一个结构体
SBaseTabelViewData- 其中封装了
header、cell、footer的基本属性：高度、类型、区分的key（是否为IXB）
- 其中封装了
- 在所有的需要判断组的地方，创建
SBaseTabelViewData，并且调用相应的自定义代理。 - 在所有的自定义代理实现方法中，都使用
header、cell、footer类型/identifire来进行处理。
struct SBaseTabelViewData {
/// 扩展key
NSString * key;
NSInteger sectionCount;
NSInteger rowCount;
Class rowType;
Class headerType;
Class footerType;
NSString *rowIdentifier;
NSString *headerIdentifier;
NSString *footerIdentifier;
CGFloat rowHeight;
CGFloat rowWidth;
CGFloat headerHeight;
CGFloat headerWidth;
CGFloat footerHeight;
CGFloat footerWidth;
BOOL isXibCell;
BOOL isXibFooter;
BOOL isXibHeader;
/// 如果 (isXibCell && length<= 0) 那么cellNibName = NSStringFromClass(rowType)
NSString *cellNibName;
};
typedef struct SBaseTabelViewData SBaseTabelViewData;
复制代码你可以实现下面的方法，来创建一个对应IndexPath的SBaseTabelViewData。
- (SBaseTabelViewData) getTableViewData:(PYTableMainView *)baseTableView andCurrentSection:(NSInteger)section andCurrentRow:(NSInteger)row
复制代码所有的关于组的判断都在这个方法中统一处理。
例子
- (SBaseTabelViewData) getTableViewData:(PYTableMainView *)baseTableView andCurrentSection:(NSInteger)section andCurrentRow:(NSInteger)row {
SBaseTabelViewData data = SBaseTabelViewDataMakeDefault();
data.sectionCount = 6;
if (section == 0) {
data.rowCount = self.data1.count;
data.rowHeight = 60;
data.rowType = BaseTableTestCell1.class;
data.rowIdentifier = KBaseTableTestCell1;
}
if (section == 1) {
data.rowCount = self.data2.count;
data.rowHeight = 30;
data.rowType = BaseTableTestCell2.class;
data.rowIdentifier = KBaseTableTestCell2;
data.headerHeight = 40;
data.headerIdentifier = KBasetableTestHeserFooterView1;
data.headerType = BasetableTestHeserFooterView1.class;
}
if (section == 2) {
data.rowCount = self.data3.count;
data.rowHeight = 112;
data.rowType = BaseTableTestCell3.class;
data.rowIdentifier = KBaseTableTestCell3;
data.headerHeight = 50;
data.headerIdentifier = KBasetableTestHeserFooterView2;
data.headerType = BasetableTestHeserFooterView2.class;
data.isXibCell = true;
data.key = KBaseTableTestCell3_data3;///根据key区分是第二组数据
}
if (section == 3) {
data.rowCount = self.data4.count;
data.rowHeight = 120;
data.rowType = BaseTableTestCell3.class;
data.rowIdentifier = KBaseTableTestCell3;
data.headerHeight = 60;
data.headerIdentifier = KBasetableTestHeserFooterView2;
data.headerType = BasetableTestHeserFooterView2.class;
data.isXibCell = true;
data.key = KBaseTableTestCell3_data4;///根据key区分是第三组数据
}
return data;
}
复制代码cell数据的传递
- (void)baseTableView:(PYTableMainView *)tableView willDisplayCell:(UITableViewCell *)cell forRowAtIndexPath:(NSIndexPath *)indexPath andData:(SBaseTabelViewData)data{
if ([BaseTableTestCell1.class isEqual: cell.class]) {
}
if ([BaseTableTestCell2.class isEqual: cell.class]) {
BaseTableTestCell2 *cell2 = (BaseTableTestCell2 *)cell;
cell2.titleLabel.text = self.data2[indexPath.row];
cell2.subTitleLabel.text = self.data2[indexPath.row];
__weak typeof(self)weakSelf = self;
[cell2 setClickCallBack:^{
[weakSelf.tableView reloadData];
}];
}
if ([BaseTableTestCell3.class isEqual: cell.class]) {
BaseTableTestCell3 *cell3 = (BaseTableTestCell3 *)cell;
NSString *str = @"";
if ([KBaseTableTestCell3_data3 isEqualToString:data.key]) {
str = self.data3[indexPath.row];
}
if ([KBaseTableTestCell3_data4 isEqualToString:data.key]) {
str = self.data4[indexPath.row];
}
NSArray <NSString *>*array = [str componentsSeparatedByString:@"<EB>"];
cell3.nameLabel.text = array.firstObject;
cell3.subTitleLabel.text = array.lastObject;
cell3.delegate = self;
[cell3 addGestureRecognizer: cell3.longPressGesture];
}
}
- (void)tableView:(PYTableMainView *)tableView willDisplayHeaderView:(UIView *)view forSection:(NSInteger)section andData: (SBaseTabelViewData)data {
if ([BasetableTestHeserFooterView1.class isEqual:view.class]) {
BasetableTestHeserFooterView1 *header = (BasetableTestHeserFooterView1 *)view;
header.titleLabel.text = @"设置";
}
/// 第二种headerView
if ([BasetableTestHeserFooterView2.class isEqual:view.class]) {
BasetableTestHeserFooterView2 *header = (BasetableTestHeserFooterView2 *)view;
/// 用key区分header的类型
if ([data.key isEqualToString:KBaseTableTestCell3_data3]) {
header.titleLabel.text = @"小的绿萝";
header.rightPointView.backgroundColor = UIColor.redColor;
}
if ([data.key isEqualToString:KBaseTableTestCell3_data4]) {
header.titleLabel.text = @"大的鹅鹅鹅掌柴";
header.rightPointView.backgroundColor = UIColor.blueColor;
}
}
}
复制代码PYTableMainView位于PYKit库中的PYBaseView库
你可以这样引入 pod PYBaseView
