IOS自定义ComboBox代码,ObjC代码库,德仔网

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【ObjC】 IOS自定义ComboBox
作者:Android.cc / 发布于2013/11/28/ 1107
自定义toggleView、comboBox
/* 头文件 */
#import <UIKit/UIKit.h>
#import "CCButtonDelegate.h"
#define ROW_HEIGHT 30
#define ROWLINE 6
#define ROWWIDTH 280

@protocol CCComboBoxDelegate;
@interface CCComboBox : UIView<UITableViewDataSource, UITableViewDelegate, CCButtonDelegate>
{
@private
  UIButton *_button;
  UITableView *_tableView;
  NSInteger _currentRow;
  NSUInteger _rowMaxLines;
  BOOL isHidden;
  UIView *_overlayView;
}
@property (assign, nonatomic) id<CCComboBoxDelegate> delegate;
@property (strong, nonatomic, setter = setDataArray:) NSMutableArray *dataArray;

- (id)initWithFrame:(CGRect)frame;
- (void)setDataArray:(NSMutableArray *)dataArray;
@end

@interface CCComboBox (UIButton)
- (void)setComboBoxBackgroundImage:(UIImage *)image forState:(UIControlState)state;
- (void)setComboBoxFrame:(CGRect)frame;
- (id)getComboBoxSelectedItem;

@end

@interface CCComboBox (UITableView)
- (void)setComboBoxShowMaxLine:(NSUInteger)count;

@end

/*具体实现*/
#import "CCComboBox.h"
#import "UIButton+CCButton.h"
#import "CCComboBoxDelegate.h"

@interface CCComboBox (Private)

- (void)showOrHidden:(BOOL)hidden;
- (void)fadeIn;
- (void)fadeOut;

@end

@implementation CCComboBox

- (id)initWithFrame:(CGRect)frame
{
  self = [super initWithFrame:frame];
  if (self) {
    self.frame = frame;
    _currentRow = 0;
    _dataArray = [NSMutableArray arrayWithCapacity:0];
    isHidden = YES;
    _button = [[UIButton alloc] initWithNormalImage:nil andHighLighted:nil frame:CGRectMake(0, 0, frame.size.width, frame.size.height)];
    [_button setTitleColor:[UIColor blackColor] forState:UIControlStateNormal];
    [_button setTitleColor:[UIColor blackColor] forState:UIControlStateHighlighted];
    _button.contentEdgeInsets = UIEdgeInsetsMake(5, 10, 5, frame.size.width/18.0);
    _button.contentHorizontalAlignment = UIControlContentHorizontalAlignmentLeft;
    [_button addTarget:self action:@selector(clickAction:) forControlEvents:UIControlEventTouchUpInside];
    [self addSubview:_button];
  }
  return self;
}

- (void) setDataArray:(NSMutableArray *)dataArray
{
  _dataArray = dataArray;
  if (_dataArray.count > 0) {
    if (_delegate) {
      [_delegate selected:self atIndex:0];
    }
    [_button setTitle:[_dataArray objectAtIndex:0] forState:UIControlStateNormal];
  }
  if (_tableView) {
    [_tableView reloadData];
  }
 
}

#pragma mark - UIButton
- (void)setComboBoxBackgroundImage:(UIImage *)image forState:(UIControlState)state
{
  [_button setBackgroundImage:image forState:state];
}

- (void)setComboBoxFrame:(CGRect)frame
{
  self.frame = frame;
  _button.frame = CGRectMake(0, 0, frame.size.width, frame.size.height);
}

- (id)getComboBoxSelectedItem
{
  return [_dataArray objectAtIndex:_currentRow];
}

#pragma mark - UITableView
- (void)setComboBoxShowMaxLine:(NSUInteger)count
{
  _rowMaxLines = count;
  if (_tableView) {
    _tableView.frame = CGRectMake(0, 0, ROWWIDTH, _dataArray.count > _rowMaxLines ? ROW_HEIGHT *_rowMaxLines : ROW_HEIGHT * _dataArray.count);
  }
}

#pragma mark - UIButtonDelegate
- (void)clickAction:(id)sender
{
  if (!_tableView) {
    _rowMaxLines = _rowMaxLines == 0 ? ROWLINE : _rowMaxLines;
    _tableView = [[UITableView alloc] initWithFrame:CGRectMake(0, 0, ROWWIDTH, _dataArray.count > _rowMaxLines ? ROW_HEIGHT * _rowMaxLines : ROW_HEIGHT * _dataArray.count) style:UITableViewStylePlain];
    _tableView.dataSource = self;
    _tableView.delegate = self;
   
    _tableView.layer.borderWidth = 1;
    _tableView.layer.borderColor = [[UIColor grayColor] CGColor];
    _tableView.layer.cornerRadius = 5;
   
    _overlayView = [[UIView alloc] initWithFrame:[[UIScreen mainScreen] bounds]];
    _overlayView.backgroundColor = [UIColor colorWithRed:.16 green:.17 blue:.21 alpha:.5];
  }
  [self showOrHidden:(isHidden = !isHidden)];
}

#pragma mark - UITableViewDataDelegate
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
  static NSString *cellIdentifier = @"CellIdentifier";
  UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:cellIdentifier];
  if (!cell) {
    cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:cellIdentifier];
  }
  cell.textLabel.text = [_dataArray objectAtIndex:[indexPath row]];
  cell.textLabel.font = [UIFont fontWithName:@"Arial" size:14];
  return cell;
}

- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
  return _dataArray.count;
}

#pragma mark - UITableViewDelegate
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
  [_button setTitle:[_dataArray objectAtIndex:[indexPath row]] forState:UIControlStateNormal];
  if (_delegate && _currentRow != [indexPath row]) {
    [_delegate selected:self atIndex:[indexPath row]];
  }
  _currentRow = [indexPath row];
  [self showOrHidden:(isHidden = !isHidden)];
}

- (CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath
{
  return ROW_HEIGHT;
}

- (void)tableView:(UITableView *)tableView willDisplayCell:(UITableViewCell *)cell forRowAtIndexPath:(NSIndexPath *)indexPath
{
  if ([indexPath row] % 1 == 0) {
    //cell.backgroundColor = [UIColor grayColor];
  }
}

#pragma mark - private
- (void)showOrHidden:(BOOL)hidden
{
  if (hidden) {
    [self fadeOut];
  }else {
    UIWindow *keywindow = [[UIApplication sharedApplication] keyWindow];
    [keywindow addSubview:_overlayView];
    [keywindow addSubview:_tableView];
    _tableView.center = CGPointMake(keywindow.bounds.size.width/2.0f,
                 keywindow.bounds.size.height/2.0f);
    [self fadeIn];
  }
}

- (void)fadeIn
{
  _tableView.transform = CGAffineTransformMakeScale(1.3, 1.3);
  _tableView.alpha = 0;
  [UIView animateWithDuration:.35 animations:^{
    _tableView.alpha = 1;
    _tableView.transform = CGAffineTransformMakeScale(1, 1);
  }];
}

- (void)fadeOut
{
  [UIView animateWithDuration:.15 animations:^{
    _tableView.transform = CGAffineTransformMakeScale(1.3, 1.3);
    _tableView.alpha = 0.0;
  } completion:^(BOOL finished) {
    if (finished) {
      [_overlayView removeFromSuperview];
      [_tableView removeFromSuperview];
    }
  }];
}

@end

/*应用*/
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
  self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] applicationFrame]];
  // Override point for customization after application launch.
  self.window.backgroundColor = [UIColor whiteColor];
 
 
  CCComboBox *comboBox = [[CCComboBox alloc] initWithFrame:CGRectMake(10, 10, 300, 30)];
  comboBox.dataArray = _dataArray;
  [comboBox setComboBoxBackgroundImage:[UIImage imageNamed:@"select_button_bg"] forState:UIControlStateNormal];
  comboBox.tag = 10000;
  //[self.window addSubview:comboBox];
  comboBox.delegate = self;
  NSMutableArray *array = [NSMutableArray arrayWithArray:@[@"--全部片区--", @"武侯区", @"青阳社区", @"金牛社区", @"成华区", @"温江区", @"温江1区", @"龙泉驿区", @"龙泉2区"]];
  //NSMutableArray *array1 = [NSMutableArray arrayWithCapacity:0];
  [comboBox setDataArray:array];
  UIView *subView = [[UIView alloc] initWithFrame:CGRectMake(0, 0, 320, comboBox.frame.size.height +20)];
  [subView addSubview:comboBox];
  subView.backgroundColor = [UIColor grayColor];
 
  CCToggleView *toggleView = [[CCToggleView alloc] initWithSubView:subView subViewVisiable:NO];
  [toggleView setToggleBackgroundImage:[UIImage imageNamed:@"toggle_normal"] forState:UIControlStateNormal];
  [toggleView setToggleBackgroundImage:[UIImage imageNamed:@"toggle_selected"] forState:UIControlStateSelected];
  [self.window addSubview:toggleView];
 
  [self.window makeKeyAndVisible];
  return YES;
}
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