完成的效果如下
image
1、添加左滑按鈕（多個）
添加左滑按鈕 ，這個網(wǎng)上比較多，直接上代碼！
//設置是否可以左滑顯示按鈕
- (BOOL)tableView:(UITableView *)tableView canEditRowAtIndexPath:(NSIndexPath *)indexPath {
return YES;
}
- (NSArray<UITableViewRowAction *> *)tableView:(UITableView *)tableView editActionsForRowAtIndexPath:(NSIndexPath *)indexPath {
//這里的title需要設置為空格
UITableViewRowAction *delBtn = [UITableViewRowAction rowActionWithStyle:UITableViewRowActionStyleDestructive title:@" " handler:^(UITableViewRowAction * _Nonnull action, NSIndexPath * _Nonnull indexPath) {
//做一些處理
}];
UITableViewRowAction *topBtn = [UITableViewRowAction rowActionWithStyle:UITableViewRowActionStyleNormal title:@" " handler:^(UITableViewRowAction * _Nonnull action, NSIndexPath * _Nonnull indexPath) {
//做一些處理
}];
//修改默認的背景，這個修改的是UITableViewRowActionButton -> View層級的背景色，不是上層Button的背景色（如下圖）
delBtn.backgroundColor = JX_LightColorWhite;
topBtn.backgroundColor = JX_LightColorWhite;
return @[delBtn, topBtn];
}
image
這樣就可以顯示按鈕了。但是如果這樣子，只會顯示文字，并沒有設置圖片的地方；所以請看下面↓
2、重新編輯UITableViewRowAction的子視圖
重寫- (void)tableView:(UITableView *)tableView willBeginEditingRowAtIndexPath:(NSIndexPath *)indexPath；
因為每次左滑cell的時候這個代理都會被調(diào)用，所以我們在這里編輯子視圖，如下：
- (void)tableView:(UITableView *)tableView willBeginEditingRowAtIndexPath:(NSIndexPath *)indexPath {
JXMsgAndUserObject *p=[_array objectAtIndex:indexPath.row];
if (@available(iOS 13.0, *)) {
for (UIView * subView in self.tableView.subviews) {
if ([subView isKindOfClass:NSClassFromString(@"_UITableViewCellSwipeContainerView")] && [subView.subviews count] >=1) {
UIView *swipeView = subView.subviews.firstObject;
swipeView.backgroundColor = [UIColor clearColor];
if (swipeView.subviews.count >=2) {
UIButton *deleteButton = swipeView.subviews[1];
UIButton *upButton = swipeView.subviews[0];
[self configDeleteButton:deleteButton];
[self configUpButton:upButton cellModel:p];
}
}
}
}
else if (@available(ios 11.0, *)) {
for (UIView * subView in self.tableView.subviews) {
if ([subView isKindOfClass:NSClassFromString(@"UITableViewWrapperView")]) {
for (UIView *actionView in subView.subviews) {
if ([actionView isKindOfClass:NSClassFromString(@"UISwipeActionPullView")]) {
actionView.backgroundColor = [UIColor clearColor];
if (actionView.subviews.count >=2) {
UIButton *deleteButton = actionView.subviews[1];
UIButton *upButton = actionView.subviews[0];
[self configDeleteButton:deleteButton];
[self configUpButton:upButton cellModel:p];
}
}
}
}
}
}
else{
JXCell *tableCell = [self.tableView cellForRowAtIndexPath:[NSIndexPath indexPathForRow:0 inSection:0]];
for (UIView *subview in tableCell.subviews){
if ([subview isKindOfClass:NSClassFromString(@"UITableViewCellDeleteConfirmationView")] && [subview.subviews count] >= 2){
UIButton *deleteButton = subview.subviews[0];
UIButton *upButton = subview.subviews[1];
[self configDeleteButton:deleteButton];
[self configUpButton:upButton cellModel:p];
}
}
}
}
- (void)configDeleteButton:(UIButton *)deleteButton{
[deleteButton setBackgroundImage:[UIImage createImageWithColor:JX_LightColorF9F9F9] forState:UIControlStateNormal];
CGRect cRect = deleteButton.frame;
cRect.origin.x = deleteButton.frame.origin.x + 2;
cRect.size.width = deleteButton.frame.size.width - 2;
[deleteButton mas_updateConstraints:^(MASConstraintMaker *make) {
make.width.mas_equalTo(cRect.size.width);
make.left.mas_equalTo(cRect.origin.x);
}];
UIButton *cellDelBtn = [UIFactory buttonWithImage:@"chat_msg_btn_delete" target:nil selector:nil];
cellDelBtn.frame = CGRectMake(0, 0, 70, 68);
[cellDelBtn setTitle:Localized(@"JX_Delete") forState:UIControlStateNormal];
cellDelBtn.titleLabel.font = SYSFONT(12);
[cellDelBtn setTitleColor:JX_LightTextColor878A8C forState:UIControlStateNormal];
[cellDelBtn layoutButtonWithEdgeInsetsStyle:MKButtonEdgeInsetsStyleTop imageTitleSpace:0];//此方法是改變button的image、title布局的，在此不放出代碼，自行另找
[deleteButton addSubview:cellDelBtn];
[cellDelBtn mas_remakeConstraints:^(MASConstraintMaker *make) {
make.left.top.equalTo(deleteButton);
make.size.mas_equalTo(cRect.size);
}];
}
- (void)configUpButton:(UIButton*)upButton cellModel:(JXMsgAndUserObject *)p{
NSString *str;
if (p.user.topTime) {
str = Localized(@"JX_CancelTop");
}else {
str = Localized(@"JX_Top");
}
[upButton setBackgroundImage:[UIImage createImageWithColor:JX_LightColorF9F9F9] forState:UIControlStateNormal];
CGRect cRect = upButton.frame;
cRect.origin.x = upButton.frame.origin.x + 2;
cRect.size.width = upButton.frame.size.width - 2;
[upButton mas_updateConstraints:^(MASConstraintMaker *make) {
make.width.mas_equalTo(cRect.size.width);
make.left.mas_equalTo(cRect.origin.x);
}];
UIButton *cellUpBtn = [UIFactory buttonWithImage:@"chat_msg_btn_upTop" target:nil selector:nil];
cellUpBtn.frame = CGRectMake(0, 0, 70, 68);
cellUpBtn.titleLabel.font = SYSFONT(12);
[cellUpBtn setTitleColor:JX_LightTextColor878A8C forState:UIControlStateNormal];
[cellUpBtn setTitle:str forState:UIControlStateNormal];
[cellUpBtn layoutButtonWithEdgeInsetsStyle:MKButtonEdgeInsetsStyleTop imageTitleSpace:0];//此方法是改變button的image、title布局的，在此不放出代碼，自行另找
[upButton addSubview:cellUpBtn];
[cellUpBtn mas_remakeConstraints:^(MASConstraintMaker *make) {
make.left.top.equalTo(upButton);
make.size.mas_equalTo(cRect.size);
}];
}
大概說一下以上代碼的作用吧：通過遍歷子視圖找到需要更改的UIButton（實際上是其子類），然后創(chuàng)建一個臨時Button，按照自己需要的樣式去設置，再添加到獲取到的button上，最后添加約束即可。
特別說明：由于ios11，ios13都對圖層結(jié)構(gòu)進行了更改，所以針對不同的系統(tǒng)，獲取方式不一樣
