IOS 自定义 UIView 实现重用

IOS 自定义 UIView 实现重用

MarketTopItemView.h

#import <UIKit/UIKit.h>

@interface MarketTopItemView : UIView{
//code
NSString *strCode;

//品种名称
IBOutlet UILabel *labName;

//当前价
IBOutlet UILabel *labCurrentPic;

//涨跌
IBOutlet UILabel *labUpDown;

//涨跌幅
IBOutlet UILabel *labUpDownRate;

//背景线
IBOutlet UIImageView *imgLine;

//保留小数位
NSInteger intDecimal;
}

////////////////////////////////////////////
-(id) initViewWithFrame:(CGRect) frame;

-(void) initData:(NSDictionary *) dicData;

@end

#import "MarketTopItemView.h"

@implementation MarketTopItemView

-(id) initViewWithFrame:(CGRect) frame{

self = [super initWithFrame:frame];
if (self) {
// Custom initialization
}

// [S] 初始化子控件
if(!labName){
labName = [[UILabel alloc] initWithFrame:CGRectMake(10.f, 6.f, 66.f, 20.f)];
[labName setFont:[UIFont systemFontOfSize:13.f]];
[labName setTextAlignment:NSTextAlignmentLeft];
[labName setTextColor:[UIColor whiteColor]];

[self addSubview:labName];
}

if(!labCurrentPic){
labCurrentPic = [[UILabel alloc] initWithFrame:CGRectMake(10.f, 26.f, 85.f, 21.f)];
[labCurrentPic setFont:[UIFont systemFontOfSize:19.f weight:bold]];
[labCurrentPic setTextAlignment:NSTextAlignmentLeft];
[labCurrentPic setTextColor:[UIColor whiteColor]];

[self addSubview:labCurrentPic];
}

if(!labUpDown){
labUpDown = [[UILabel alloc] initWithFrame:CGRectMake(10.f, 45.f, 45.f, 20.f)];
[labUpDown setFont:[UIFont systemFontOfSize:11.f]];
[labUpDown setTextAlignment:NSTextAlignmentLeft];
[labUpDown setTextColor:[UIColor whiteColor]];

[self addSubview:labUpDown];
}

if(!labUpDownRate){
labUpDownRate = [[UILabel alloc] initWithFrame:CGRectMake(55.f, 45.f, 55.f, 20.f)];
[labUpDownRate setFont:[UIFont systemFontOfSize:11.f]];
[labUpDownRate setTextAlignment:NSTextAlignmentLeft];
[labUpDownRate setTextColor:[UIColor whiteColor]];

[self addSubview:labUpDownRate];
}

if(!imgLine){
imgLine = [[UIImageView alloc] initWithFrame:CGRectMake(10.f, 65.f, 95.f, 2.f)];

[self addSubview:imgLine];
}

[self setBackgroundColor:[UIColor clearColor]];
// [B] 初始化子控件

return self;

}

-(void) initData:(NSDictionary *) dicData{

if (dicData && dicData.count > 0) {
float upDownRate = 0.f;

//code
strCode = dicData[@"Code"];

//保留位数
intDecimal = [dicData[@"Decimal"] intValue];

//名称
labName.text = dicData[@"Name"];

//当前价
if (intDecimal == 2)
labCurrentPic.text = [NSString stringWithFormat:@"%.2f",[dicData[@"Last"] floatValue]];
else
labCurrentPic.text = [NSString stringWithFormat:@"%.4f",[dicData[@"Last"] floatValue]];

//涨跌
if (intDecimal == 2)
labUpDown.text =[NSString stringWithFormat:@"%.2f",[dicData[@"UpDown"] floatValue]];
else
labUpDown.text =[NSString stringWithFormat:@"%.4f",[dicData[@"UpDown"] floatValue]];

//涨跌幅(涨跌 / 昨收 * 100)
upDownRate = [dicData[@"UpDown"] floatValue] / [dicData[@"LastClose"] floatValue] * 100;
labUpDownRate.text = [NSString stringWithFormat:@"%.2f",upDownRate];
labUpDownRate.text = [labUpDownRate.text stringByAppendingString:@"%"];

//涨跌背景图
CGRect rect = imgLine.frame;
float fwidth = abUpDown.frame.size.width;
fwidth += [AFUtils get_width_for_string:abUpDownRate.text withSize:11.F andWidth:labUpDownRate.frame.size.width];
rect.size.width = fwidth;

if ([dicData[@"UpDown"] floatValue] > 0)       //红涨
imgLine.image = [UIImage imageNamed:@"market_updark_bg.png"];
else if ([dicData[@"UpDown"] floatValue] < 0)  //绿跌
imgLine.image = [UIImage imageNamed:@"market_downdark_bg.png"];
else                                           //白平
imgLine.image = [UIImage imageNamed:@"market_nomraldark_bg.png"];
imgLine.frame = rect;

}

}

@end

调用如下：

if (excodeListArray && [excodeListArray count] > 0) {

float x = 0.f;
NSDictionary *dicTemp;
MarketTopItemView *itemView;
CGRect rect = CGRectMake(0, 0, 106.5f, 73.f);

//先清空之前绑定
for (id sender in [self.topView subviews]) {
//背景图，不能移除
if (!([sender isKindOfClass:[UIImageView class]] && ((UIImageView *)sender).tag == 555))
[sender removeFromSuperview];
}

//重新绑定
for (int i = 0,len = (int)[excodeListArray count]; i < len; i++) {

//初始化位置
x = i * 106.5f;
rect.origin.x = x;
itemView = [[MarketTopItemView alloc] initViewWithFrame:rect];

//获取数据
dicTemp = [excodeListArray objectAtIndex:i];
[itemView initData:dicTemp];

[self.topView addSubview:itemView];
}

dicTemp = nil;
itemView = nil;
}

效果图：