iOS - 一个方法搞定自定义tabBarItem中的控件位置均分

来源：互联网发布：守望先锋配置检测软件编辑：程序博客网时间：2024/06/07 02:21

京东 qq 自定义tabbar控件均分

这里写图片描述

代码如下

//ViewController.m- (void)viewDidLoad {    [super viewDidLoad];    self.view.backgroundColor = [UIColor orangeColor];    [self setLablesWithArrOfTitle:@[@"one",@"哈哈",@"你妹的",@"我去"] andLeftDistance:15 andItHeight:21 andYcoordinate:255 andDestiView:self.view];    [self setLablesWithArrOfTitle:@[@"one",@"哈哈",@"你妹的",@"我去"] andLeftDistance:15 andItWidth:44 andItHeight:21 andYcoordinate:155 andDestiView:self.view];}

对应方法

为了对比明显将控制器背景色,以及控件背景色都设置上了不同的颜色以便于观看

自动计算label的宽度

/** *  设置中间部分控件两两之间距离相等,两端控件距离两侧为中间控件的一半 *  根据lDis计算label宽度 *  @param arrTitles label的名字数组 *  @param lDistance 最左边控件距离屏幕左边的距离 *  @param height    控件高度 *  @param y         控件y坐标 */-(void)setLablesWithArrOfTitle:(NSArray<NSString *> *)arrTitles andLeftDistance:(CGFloat)lDistance andItHeight:(CGFloat)height andYcoordinate:(CGFloat) y andDestiView:(UIView *)destiView{    CGFloat screenWidth = [UIScreen mainScreen].bounds.size.width;    CGFloat margin = 2 * lDistance;    CGFloat width = (screenWidth - arrTitles.count * 2 * lDistance)/arrTitles.count;    UILabel * tempLabel = [UILabel new];    for (int i = 0; i< arrTitles.count; i++) {        if (i == 0) {            UILabel * lbl = [[UILabel alloc] initWithFrame:CGRectMake(lDistance, y, width, height)];            lbl.backgroundColor = [UIColor whiteColor];            lbl.textAlignment = NSTextAlignmentCenter;            lbl.text = arrTitles[0];            [destiView addSubview:lbl];            tempLabel = lbl;            continue;        }        UILabel * lbl = [[UILabel alloc] initWithFrame:CGRectMake((CGRectGetMaxX(tempLabel.frame)+margin), y, width, height)];        lbl.textAlignment = NSTextAlignmentCenter;        lbl.backgroundColor = [UIColor whiteColor];        lbl.text = arrTitles[i];        [destiView addSubview:lbl];        tempLabel = lbl;    }}

自定义label的宽度

/** *  设置中间部分控件两两之间距离相等 *  自定义label宽度 *  @param arrTitles label的名字数组 *  @param lDistance 最左边控件距离屏幕左边的距离 *  @param width     控件宽度 *  @param height    控件高度 *  @param y         控件y坐标 */-(void)setLablesWithArrOfTitle:(NSArray<NSString *> *)arrTitles andLeftDistance:(CGFloat)lDistance andItWidth:(CGFloat)width andItHeight:(CGFloat)height andYcoordinate:(CGFloat) y andDestiView:(UIView *)destiView{    CGFloat screenWidth = [UIScreen mainScreen].bounds.size.width;    CGFloat margin = (screenWidth - 2*lDistance - width*arrTitles.count) / (arrTitles.count - 1);    UILabel * tempLabel = [UILabel new];    for (int i = 0; i< arrTitles.count; i++) {        if (i == 0) {            UILabel * lbl = [[UILabel alloc] initWithFrame:CGRectMake(lDistance, y, width, height)];            lbl.backgroundColor = [UIColor whiteColor];            lbl.textAlignment = NSTextAlignmentCenter;            lbl.text = arrTitles[0];            [destiView addSubview:lbl];            tempLabel = lbl;            continue;        }        UILabel * lbl = [[UILabel alloc] initWithFrame:CGRectMake((CGRectGetMaxX(tempLabel.frame)+margin), y, width, height)];        lbl.backgroundColor = [UIColor whiteColor];        lbl.textAlignment = NSTextAlignmentCenter;        lbl.text = arrTitles[i];        [destiView addSubview:lbl];        tempLabel = lbl;    }}

最终效果

第一行是自定义控件宽度
第二行是自动计算控件宽度根据自己需求调用即可
方法内部稍加修改就可以作为创建UIButton,UIImageView,UITxtField等等.

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