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iOS時間軸的實現

編輯:IOS技巧綜合
[摘要]本文是對iOS時間軸的實現的講解,對學習IOS蘋果軟件開發有所幫助,與大家分享。

最近項目需求,恰好要做一個時間軸,而iOS這方面時間軸的例子也比較少,我就把自己所做的例子和思路共享出來給大家,共同學習。

時間軸的具體實現效果如圖1所示:

      圖1

第一步:看到這個圖,我們想到的第一反應就是使用tableView或者CollectionView來完成,那麼我這裡使用的是tableView。首先,創建一個Single View Application項目,在Main.Storyboard裡面拖入一個TableView(如圖2所示),這裡別忘記了把TableView的delegate指向ViewController。

圖 2

第二步:TableView完成了,接下來就是如何自定義TableViewCell了。在項目中new file選擇Cocoa Touch Class,然後選擇繼承自TableViewCell,然後勾選XIB file選項,命名為“TimeCourseTableViewCell”,點擊創建,完成後如圖3所示:

  圖 3

接下來,就是為這個xib文件布局,通過圖4圈出來的,我們可以找出一個cell裡面具有什麼控件。

      圖 4

根據這個,我們布局出來的如圖5所示,主要就是Label和View來完成布局。

​​​​​​​        圖 5

其實這裡肯定會有人有疑問:

1.為什麼下面那個不直接用一個Button就好了呢,還要用一個View裡面嵌套一個Label呢?

2.為什麼"內容"的那個label還要添加一個父控件View呢?

其實,剛開始的時候,我確實也是使用簡單的一個Button和一個Label以為就可以了。後來發現,莫名的出現明明設置了buttom和label的Frame,修改了Origin,卻總是出現亂七八糟的位置,後來通過view嵌套在裡面,改變view的位置,就完全可以實現了。這個BUG本人也不清楚,望知情人告知,謝謝。

第三步:接下來,看xib裡面的TimeCourseTableViewCell.h文件裡的代碼:

#import <UIKit/UIKit.h>

@interface TimeCourseTableViewCell : UITableViewCell

@property (weak, nonatomic) IBOutlet UILabel *lbDate; //日期
@property (weak, nonatomic) IBOutlet UILabel *lbTime;  //時間
@property (weak, nonatomic) IBOutlet UIView *infoView; //白色底的那個View
@property (weak, nonatomic) IBOutlet UILabel *lbInfoTitle;  //通知標題
@property (weak, nonatomic) IBOutlet UILabel *lbInfoContent; //通知內容
@property (weak, nonatomic) IBOutlet UIView *infoContentView; //通知內容的父View
@property (weak, nonatomic) IBOutlet UILabel *lbSegment; //豎著的灰色分割線
@property (weak, nonatomic) IBOutlet UIView *receiveView; //深紅色的View
@property (weak, nonatomic) IBOutlet UILabel *lbReceive; //輕觸收到通知
 
- (CGFloat)setCellHeight:(NSString *)strInfo isSameDay:(BOOL)isSame;
- (void)setRidues;
- (void)setClick;
- (void)setNotClick;

@end

TimeCourseTableViewCell.m文件裡的代碼:

#import "TimeCourseTableViewCell.h"

@implementation TimeCourseTableViewCell
@synthesize lbDate;
@synthesize lbTime;
@synthesize infoView;
@synthesize lbInfoTitle;
@synthesize lbInfoContent;
@synthesize  lbReceive;
@synthesize receiveView;
@synthesize lbSegment;
@synthesize infoContentView;
 
- (void)awakeFromNib {

    // Initialization code

}
  
/*去掉上面的日期*/
- (void)deleteDate{
    lbDate.hidden = YES;
    CGRect timeTemp = lbTime.frame;
    timeTemp.origin = CGPointMake(timeTemp.origin.x, 8);
    lbTime.frame = timeTemp;  

    CGRect infoViewTemp = infoView.frame;
    infoViewTemp.origin = CGPointMake(infoViewTemp.origin.x, 8);
    infoView.frame = infoViewTemp;
}

 

/*設置顯示的文本高度,以確定整個tableViewCell的高度,最後返回cell高度*/
- (CGFloat)setCellHeight:(NSString *)strInfo isSameDay:(BOOL)isSame{
    /*如果是同一天 則去掉上面的日期*/
    if (isSame) {
        [self deleteDate];
    }

    [lbInfoContent setNumberOfLines:0];  //0行,則表示根據文本長度,自動增加行數
    NSString *labelText = strInfo;
    NSMutableAttributedString *attributedString = [[NSMutableAttributedString alloc] initWithString:labelText];
    NSMutableParagraphStyle *paragraphStyle = [[NSMutableParagraphStyle alloc] init];
    [paragraphStyle setLineSpacing:5.0f];//調整行間距
    [attributedString addAttribute:NSParagraphStyleAttributeName value:paragraphStyle range:NSMakeRange(0, [labelText length])];
    lbInfoContent.attributedText = attributedString;
    [lbInfoContent sizeToFit];  //填充
    //NSLog(@"%@",lbInfoContent);

    CGRect infoContentViewTemp = infoContentView.frame;
    infoContentViewTemp.size = CGSizeMake(212, lbInfoContent.frame.size.height);
    infoContentView.frame = infoContentViewTemp;

    /*設置手勢點擊位置*/
    CGRect btnTemp = receiveView.frame;
    btnTemp.origin = CGPointMake(0, infoContentView.frame.origin.y + infoContentView.frame.size.height + 8 );
    receiveView.frame = btnTemp;
    //NSLog(@"%@",receiveView);

    /*設置整個infoView高度*/
    CGRect viewTemp = infoView.frame;
    viewTemp.size = CGSizeMake(viewTemp.size.width, receiveView.frame.origin.y + receiveView.frame.size.height);
    infoView.frame = viewTemp;
    //NSLog(@"%@",infoView);

    lbSegment.frame = CGRectMake(lbSegment.frame.origin.x, 0, 3, infoView.frame.origin.y + infoView.frame.size.height + 8);
    NSLog(@"HEight %f",infoView.frame.origin.y + infoView.frame.size.height + 8);
    return infoView.frame.origin.y + infoView.frame.size.height + 8;
}

 

/*設置圓形*/
- (void)setRidues{
    lbTime.layer.cornerRadius = lbTime.frame.size.width / 2;
    [lbTime.layer setMasksToBounds:YES];
}


/*設置點擊閱讀樣式*/
- (void)setClick{
    CGFloat R  = (CGFloat) 128/255.0;
    CGFloat G = (CGFloat) 128/255.0;
    CGFloat B = (CGFloat) 128/255.0;
    CGFloat alpha = (CGFloat) 1.0;
    UIColor *ColorRGB = [ UIColor colorWithRed: R
                                         green: G
                                          blue: B
                                         alpha: alpha
                        ];
    receiveView.backgroundColor = ColorRGB;
    lbReceive.text = @"我已收到通知";
}

 

/*設置未點擊閱讀樣式*/
- (void)setNotClick{
    CGFloat R  = (CGFloat) 255/255.0;
    CGFloat G = (CGFloat) 83/255.0;
    CGFloat B = (CGFloat) 83/255.0;
    CGFloat alpha = (CGFloat) 1.0;

    UIColor *ColorRGB = [ UIColor colorWithRed: R
                                         green: G
                                          blue: B
                                         alpha: alpha
                         ];
    receiveView.backgroundColor = ColorRGB;    

    lbReceive.text = @"輕觸收到通知";
}


- (void)setSelected:(BOOL)selected animated:(BOOL)animated {
    [super setSelected:selected animated:animated];
    // Configure the view for the selected state
}

@end

接下來,看ViewController.m文件裡的代碼:

#import "ViewController.h"
#import "TimeCourseTableViewCell.h" 

@interface ViewController () 

@property (weak, nonatomic) IBOutlet UITableView *messageTableView; 

@property int messageSum;  //cell個數
@property NSArray *infoArray; //保存信息內容
@property NSMutableArray *clickArray;  //記錄是否已經閱讀了信息 1未接收  0接收
 
@end

 

@implementation ViewController
@synthesize messageSum;

- (void)viewDidLoad {
    [super viewDidLoad];
    // Do any additional setup after loading the view, typically from a nib.    

    /*tableView*/
    [self setTableViewStyle];
    messageSum = 10;
    self.infoArray = [[NSArray alloc] initWithObjects:@"老夫聊發少年狂,治腎虧,不含糖。",
                      @"錦帽貂裘,千騎用康王。",
                      @"",
                      @"為報傾城隨太守,三百年,九芝堂。酒酣胸膽尚開張,西瓜霜,喜之郎。",
                      @"持節雲中,三金葡萄糖。會挽雕弓如滿月,西北望 ,阿迪王。",
                      @"十年生死兩茫茫,恆源祥,羊羊羊。",
                      @"千裡孤墳,洗衣用奇強。",
                      @"縱使相逢應不識,補維C,施爾康。",
                      @"夜來幽夢忽還鄉,學外語,新東方。相顧無言,洗洗更健康。得年年斷腸處,找工作,富士康",
                      @"啦啦啦",nil];   

    self.clickArray = [[NSMutableArray alloc] initWithObjects:@"1",
                      @"1",
                      @"1",
                      @"1",
                      @"1",
                      @"1",
                      @"1",
                      @"1",
                      @"1",
                      @"1",nil];
}



#pragma mark - 設置messageTableView的背景色和去掉分割線
- (void)setTableViewStyle{
    self.messageTableView.separatorStyle = UITableViewCellSeparatorStyleNone;  //去掉tabelView分割線
    CGFloat R  = (CGFloat) 237/255.0;
    CGFloat G = (CGFloat) 237/255.0;
    CGFloat B = (CGFloat) 237/255.0;
    CGFloat alpha = (CGFloat) 1.0;
    UIColor *ColorRGB = [ UIColor colorWithRed: R
                                         green: G
                                          blue: B
                                         alpha: alpha
                         ];
   
    [self.messageTableView setBackgroundColor:ColorRGB];
}

 
#pragma mark - TabelView數據源協議
//該方法指定了表格視圖的行數
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section{
    return messageSum;
}
 
- (CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath{
    //按時間分組,假設這裡[0,2],[3,5],[6,9]是同一天
    TimeCourseTableViewCell *nib = [[[NSBundle mainBundle] loadNibNamed:@"TimeCourseTableViewCell" owner:self options:nil] lastObject];
    if ([indexPath row] == 0) {
        NSLog(@"0");
        return [nib setCellHeight:[self.infoArray objectAtIndex:[indexPath row]] isSameDay:NO];
    }
    else if ([indexPath row]<3) {
        NSLog(@"0 - 3");
        return [nib setCellHeight:[self.infoArray objectAtIndex:[indexPath row]] isSameDay:YES];
    }else if ([indexPath row] == 3){
        NSLog(@"3");
        return [nib setCellHeight:[self.infoArray objectAtIndex:[indexPath row]] isSameDay:NO];
    }else if ([indexPath row] < 6){
        NSLog(@"3 - 6");
        NSLog(@"%f",[nib setCellHeight:[self.infoArray objectAtIndex:[indexPath row]] isSameDay:YES]);
        return [nib setCellHeight:[self.infoArray objectAtIndex:[indexPath row]] isSameDay:YES];
    }else if ([indexPath row] == 6){
        NSLog(@"6");
        NSLog(@"%f",[nib setCellHeight:[self.infoArray objectAtIndex:[indexPath row]] isSameDay:NO]);
        return [nib setCellHeight:[self.infoArray objectAtIndex:[indexPath row]] isSameDay:NO];
    }else if ([indexPath row] > 6){
        NSLog(@"6- 9");
        NSLog(@"%f",[nib setCellHeight:[self.infoArray objectAtIndex:[indexPath row]] isSameDay:YES]);
        return [nib setCellHeight:[self.infoArray objectAtIndex:[indexPath row]] isSameDay:YES];
    }else
        return 145;
}
 
//該方法返回單元格對象,有多少行表格,則調用多少次
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath{
    
    static NSString *simpleIdentify = @"TimeCourse";
    UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:simpleIdentify];
    TimeCourseTableViewCell *nib = [[[NSBundle mainBundle] loadNibNamed:@"TimeCourseTableViewCell" owner:self options:nil] lastObject];
    [nib setTag:[indexPath row]];
    if ([[self.clickArray objectAtIndex:[indexPath row]] isEqualToString:@"1"]) {
        [nib setNotClick];
    }else
        [nib setClick];  
[nib setRidues]; UITapGestureRecognizer *Tap = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(tapGesture:)]; nib.receiveView.userInteractionEnabled = YES; [nib.receiveView addGestureRecognizer:Tap]; if ([indexPath row] == 0) { [nib setCellHeight:[self.infoArray objectAtIndex:[indexPath row]] isSameDay:NO]; } else if ([indexPath row]<3) { [nib setCellHeight:[self.infoArray objectAtIndex:[indexPath row]] isSameDay:YES]; }else if ([indexPath row] == 3){ [nib setCellHeight:[self.infoArray objectAtIndex:[indexPath row]] isSameDay:NO]; }else if ([indexPath row] < 6){ [nib setCellHeight:[self.infoArray objectAtIndex:[indexPath row]] isSameDay:YES]; }else if ([indexPath row] == 6){ [nib setCellHeight:[self.infoArray objectAtIndex:[indexPath row]] isSameDay:NO]; }else if ([indexPath row] > 6){ [nib setCellHeight:[self.infoArray objectAtIndex:[indexPath row]] isSameDay:YES]; }
cell = nib; cell.selectionStyle = UITableViewCellSelectionStyleNone; //去掉提供的選中無顏色 return cell; } #pragma mark - TabelView代理協議 //選中事件 -(void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath { NSLog(@"44"); } - (void)tapGesture:(UITapGestureRecognizer *)sender{ NSLog(@"接收通知"); UIView *view = sender.self.view; TimeCourseTableViewCell *cell = (TimeCourseTableViewCell *)view.superview.superview.superview; UILabel *lb = view.subviews[0]; NSString *str = @"輕觸收到通知"; if ([lb.text isEqualToString:str]) { [cell setClick]; [self.clickArray setObject:@"0" atIndexedSubscript:cell.tag]; } } - (void)didReceiveMemoryWarning { [super didReceiveMemoryWarning]; // Dispose of any resources that can be recreated. } @end

那麼,運行之後,效果如圖6所示:

​        圖 6

改一下顏色,完成如下:

至此,整個時間軸完成。

思路大概如下:

1.根據時間分組:判斷是不是同一天,如果是則把上面的日期隱藏,整體布局往上移動。

2.獲取點擊的是哪個cell:通過給cell添加tag,那麼我單擊手勢時候,便可以獲取出cell,然後更改這個cell的樣式

可能寫的不是很明白,大家可以認真看一下代碼。

源碼地址免費下載:http://download.csdn.net/detail/junlinfushi/8345531

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