iOS 创建N个不规则按钮,宽度自适应

1.@property (nonatomic, copy) NSArray *irregularButtonTitleArray;

2.    [self createIrregularButtons];

3.- (void)createIrregularButtons

{

    UIView*bgView = [[UIViewalloc]init];

    bgView.frame = CGRectMake(15, kApplicationStatusBarHeight, SCREEN_WIDTH-30, 100);

    bgView.backgroundColor = [UIColor whiteColor];

    bgView.tag=10000;

    [self.viewaddSubview:bgView];

    self.irregularButtonTitleArray = [[NSArray alloc] initWithObjects:@"我",@"是",@"一个",@"不规则的",@"按钮", nil];

    // 这里要根据自己的需求来打开

//    for (UIView *view in bgView.subviews) {

//

//        if ([view isKindOfClass:[UIButton class]]) {

//

//            UIButton *button = (UIButton *)view;

//

//            if (button.tag >= 200) {

//

//                [button removeFromSuperview];

//            }

//        }

//    }

    floatirregularButtonX =7.5;

    floatirregularButtonY =15;

    for(inti =0; i <self.irregularButtonTitleArray.count; i++){

        //宽度自适应

        NSDictionary *fontDict = @{NSFontAttributeName:[UIFont systemFontOfSize:13]};

        CGRect frame_W = [self.irregularButtonTitleArray[i] boundingRectWithSize:CGSizeMake(MAXFLOAT, MAXFLOAT) options:NSStringDrawingUsesLineFragmentOrigin attributes:fontDict context:nil];

        // >SCREEN_WIDTH-30其中SCREEN_WIDTH-30就是bgView的宽度

        // frame_W.size.width+30其中30可以改为任意其他值，相应的下面initWithFrame:也要加30

        if(irregularButtonX+frame_W.size.width+30>SCREEN_WIDTH-30) {

            irregularButtonX =7.5;

            // irregularButton高度为30

            // 竖直方向上的间隔为10

            irregularButtonY +=40;

        }

        UIButton*irregularButton = [[UIButtonalloc]initWithFrame:CGRectMake(irregularButtonX, irregularButtonY, frame_W.size.width+30,30)];

        [irregularButtonsetTitle:self.irregularButtonTitleArray[i] forState:UIControlStateNormal];

        irregularButton.backgroundColor= [UIColorcolorWithRed:245/255.0green:245/255.0blue:245/255.0alpha:1.0];

        irregularButton.layer.shadowColor = [UIColor colorWithRed:0/255.0 green:0/255.0 blue:0/255.0 alpha:0.16].CGColor;

        irregularButton.layer.shadowOffset=CGSizeMake(0,1.5);

        irregularButton.layer.shadowRadius=3;

        irregularButton.layer.shadowOpacity=1;

        irregularButton.layer.cornerRadius=7.5;

        [irregularButtonsetTitleColor:RGB(144, 144, 153) forState:UIControlStateNormal];

        [irregularButton.titleLabelsetFont:[UIFontsystemFontOfSize:14.0f]];

        [irregularButtonsetTag:200+i];

        [irregularButtonaddTarget:selfaction:@selector(irregularButtonClickedAction:)forControlEvents:UIControlEventTouchUpInside];

        [bgViewaddSubview:irregularButton];

        // 水平方向上的间隔为18

        irregularButtonX =CGRectGetMaxX(irregularButton.frame)+18;

        // +15其中15是irregularButtonY的初始值

        bgView.frame=CGRectMake(15,kApplicationStatusBarHeight,SCREEN_WIDTH-30,CGRectGetMaxY(irregularButton.frame)+15);

    }

    UIBezierPath *maskPath = [UIBezierPath bezierPathWithRoundedRect:bgView.bounds byRoundingCorners:UIRectCornerAllCorners cornerRadii:CGSizeMake(10, 10)];

    CAShapeLayer*maskLayer = [[CAShapeLayeralloc]init];

    maskLayer.frame= bgView.bounds;

    maskLayer.path= maskPath.CGPath;

    bgView.layer.mask= maskLayer;

}

- (void)irregularButtonClickedAction:(UIButton *)sender

{

    NSString*currentIrregularButtonTitle =nil;

    UIView*bgView = [self.viewviewWithTag:10000];

    // 这里的遍历是为了找到点击的irregularButton，改变其backgroundColor和titleColor

    for(UIView*viewinbgView.subviews) {

        if([viewisKindOfClass:[UIButtonclass]]) {

            UIButton*button = (UIButton*)view;

            if(button.tag>=200) {

                if(button.tag== sender.tag) {

                    [buttonsetBackgroundColor:mainColor];

                    [buttonsetTitleColor:[UIColor whiteColor] forState:UIControlStateNormal];

                }else{

                    [buttonsetBackgroundColor:RGB(245,245,245)];

                    [buttonsetTitleColor:RGB(144, 144, 153) forState:UIControlStateNormal];

                }

            }

        }

    }

    currentIrregularButtonTitle =self.irregularButtonTitleArray[sender.tag-200];

    NSLog(@"您当前点击的不规则按钮是:%@",currentIrregularButtonTitle);

}