Select an item from the drop-down list.

Select an item from the drop-down list.

 

Click the buttons in the menu on the right, and select one from the pop-up list. Respond to the corresponding event and display the text in the menu on the right. The drop-down effect is LMDropdownView, you can use the POD to load the pod 'lmdropdownview'; The LMDropdownView is to assign the desired view to it;

Source code: https://github.com/JxbSir/YiYuanYunGou

The effect is as follows:

 

1: on the home page, define the buttons and bind the view (all attributes, such as btnriview and dropdownView, are not fully written ):

Btnriype = [UIButton buttonWithType: UIButtonTypeCustom]; [btnRigth addTarget: self action: @ selector (btnRightAction) forControlEvents: UIControlEventTouchUpInside]; if (! [OyTool ShardInstance]. bIsForReview) {[self actionCustomNavBtn: btnriw.nrlimage: @ "" htlImage: @ "" title: @ "▽"];} else {[self actionCustomNavBtn: btnriw.nrlimage: @ "" htlImage: @ "" title: [dicTypeName. allValues objectAtIndex: 0];} self. navigationItem. rightBarButtonItem = [[UIBarButtonItem alloc] initWithCustomView: btnriview]; AllProTypeView * tview = [[AllProTypeView alloc] initWithFrame: self. view. bounds]; tview. delegate = self; // in the drop-down list, the effect view dropdownView = [[LMDropdownView alloc] init]; dropdownView. menuBackgroundColor = [UIColor whiteColor]; dropdownView. menuContentView = tview;

 

2: encapsulate the setting buttons:

- (void)actionCustomNavBtn:(UIButton *)btn nrlImage:(NSString *)nrlImage                  htlImage:(NSString *)hltImage                     title:(NSString *)title {    [btn setImage:[UIImage imageNamed:nrlImage] forState:UIControlStateNormal];    if (hltImage) {        [btn setImage:[UIImage imageNamed:hltImage] forState:UIControlStateHighlighted];    } else {        [btn setImage:[UIImage imageNamed:nrlImage] forState:UIControlStateNormal];    }    if (title) {        btn.titleLabel.font = [UIFont boldSystemFontOfSize:13];        [btn setTitle:title forState:UIControlStateNormal];        [btn setTitle:title forState:UIControlStateHighlighted];        [btn setTitleColor:[UIColor whiteColor] forState:UIControlStateNormal];        [btn setTitleColor:[UIColor whiteColor] forState:UIControlStateHighlighted];    }    [btn sizeToFit];}

 

3: btnRightAction ):

- (void)btnRightAction{    if ([dropdownView isOpen])    {        [dropdownView hide];    }    else    {        //[tbViewType reloadData];        [dropdownView showInView:self.view withFrame:CGRectMake(0, 0, mainWidth, self.view.bounds.size.height)];    }}

 

4: The view code of the AllProTypeView drop-down content is as follows (a list ):

. H file content # import <UIKit/UIKit. h> @ protocol AllProTypeViewDelegate-(void) selectedTypeCode :( int) code; @ end @ interface AllProTypeView: UIView @ property (nonatomic, weak) id <AllProTypeViewDelegate> delegate; @ end. m file content @ interface AllProTypeView () <UITableViewDataSource, Region> {UITableView * tbView; NSArray * arrOfType; NSArray * arrOfTypeImage; NSInteger indexType; _ weak id <AllProTypeViewDelegate> de Legate;} @ end @ implementation AllProTypeView @ synthesize delegate;-(id) initWithFrame :( CGRect) frame {self = [super initWithFrame: frame]; if (self) {self. backgroundColor = [UIColor redColor]; tbView = [[UITableView alloc] initWithFrame: CGRectMake (0, 0, mainWidth, frame. size. height) style: UITableViewStyleGrouped]; tbView. delegate = self; tbView. dataSource = self; tbView. backgroundColor = [UIColor white Color]; tbView. separatorStyle = regular; tbView. autoresizingMask = UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleHeight; [self addSubview: tbView]; if (! [OyTool ShardInstance]. bIsForReview) {arrOfType = @ [@ "all categories", @ "Mobile Phone digital", @ "computer office", @ "Household Appliances", @ "makeup Personal Protection ", @ "watches and watches", @ "Other Products"]; arrOfTypeImage = @ [@ "sort0", @ "sort100", @ "sort106", @ "sort104 ", @ "sort2", @ "sort222", @ "sort312"];} else {arrOfType = @ [@ "Household Appliances", @ "makeup Care ", @ "watches and watches", @ "Other Products"]; arrOfTypeImage = @ [@ "sort104", @ "sort2", @ "sort222", @ "sort312"];} return self; }# pragma mark-tableview-(NSInteger) numberOfSectionsInTableView :( UITableView *) tableView {return 1;}-(NSInteger) tableView :( UITableView *) tableView numberOfRowsInSection :( NSInteger) section {return arrOfType. count;}-(CGFloat) tableView :( UITableView *) tableView heightForRowAtIndexPath :( NSIndexPath *) indexPath {return 44;}-(CGFloat) tableView :( UITableView *) tableView heightForHeaderInSection :( NSInteger) section {return 0.1;}-(CGFloat) tableView :( UITableView *) tableView heightForFooterInSection :( NSInteger) section {return 0.1;}-(UITableViewCell *) tableView :( UITableView *) tableView cellForRowAtIndexPath :( NSIndexPath *) indexPath {// static NSString * CellIdentifier = @ "Cell"; UITableViewCell * cell = nil; // (UITableViewCell *) [tableView progress: CellIdentifier]; if (cell = nil) {cell = [[UITableViewCell alloc] init];} cell. textLabel. text = [NSString stringWithFormat: @ "% @", [arrOfType objectAtIndex: indexPath. row]; NSString * name = [arrOfTypeImage objectAtIndex: indexPath. row]; if (indexPath. row = indexType) {name = [NSString stringWithFormat: @ "% @ _ checked", name]; cell. textLabel. textColor = mainColor; UIImageView * imgOK = [[UIImageView alloc] initWithFrame: CGRectMake (mainWidth-32, 14, 20, 16)]; imgOK. image = [UIImage imageNamed: @ "screening_select"]; [cell addSubview: imgOK];} else {name = [NSString stringWithFormat: @ "% @ _ normal", name];} UIImageView * img = [[UIImageView alloc] initWithFrame: CGRectMake (16, 10, 24, 24)]; img. image = [UIImage imageNamed: name]; [cell addSubview: img]; return cell;}-(void) tableView :( UITableView *) tableView didSelectRowAtIndexPath :( NSIndexPath *) indexPath {[tableView deselectRowAtIndexPath: indexPath animated: YES]; indexType = indexPath. row; [tbView reloadData]; if (delegate) {NSString * code = [[arrOfTypeImage objectAtIndex: indexPath. row] stringByReplacingOccurrencesOfString: @ "sort" withString: @ ""]; [delegate selectedTypeCode: [code intValue];} @ end

Note: whether the list has been selected or not, and its display effect is different. When triggered, the identifier is assigned a new value, and it is transmitted back to the main view controller through delegate;

 

5: The content in the response to the above delegate in the master controller is:

-(Void) selectedTypeCode :( int) code {iCodeType = code; [dropdownView hide]; NSString * key = [NSString stringWithFormat: @ "% d", code]; NSString * name = [dicTypeName objectForKey: key]; [self actionCustomNavBtn: btnri?nrlimage: @ "" htlImage: @ "0" title: name]; // The content displayed in the rebind list is _ weak typeof (self) wSelf = self; curPage = 1; [self getData: ^ {_ strong typeof (wSelf) sSelf = wSelf; sSelf-> listNew = nil;}];}