Xcode-程序开发设计-02九宫格

行号是除 决定Y值

列号是余 决定X值

//
//  ViewController.m
//  06-应用管理
//
//  Created by daier on 15/12/31.
//  Copyright © 2015年 daier. All rights reserved.
//

#import "ViewController.h"

@interface ViewController ()

@property (nonatomic, strong) NSArray *apps;

@end

@implementation ViewController

- (NSArray *)apps
{
    if (_apps == nil) {
        NSString *path = [[NSBundle mainBundle] pathForResource:@"app.plist" ofType:nil];
        _apps = [NSArray arrayWithContentsOfFile:path];
    }
    NSLog(@"%ld",_apps.count);

    return _apps;
}

- (void)viewDidLoad {
    [super viewDidLoad];

    CGFloat appW = ;
    CGFloat appH = ;
    int totalColoumns = ;

    CGFloat marginX = (self.view.frame.size.width - totalColoumns*appW)/(totalColoumns+);
    CGFloat marginY = ;

    for (int index = ; index < self.apps.count; index++) {
        UIView *appView = [[UIView alloc] init];
        appView.backgroundColor = [UIColor redColor];

        int row = index/totalColoumns;
        int col = index%totalColoumns;

        CGFloat appX = marginX + col*(appW + marginX);
        CGFloat appY =  + row*(appH + marginY);

        appView.frame = CGRectMake(appX, appY, appW, appH);
        [self.view addSubview:appView];
    }
}

- (void)didReceiveMemoryWarning {
    [super didReceiveMemoryWarning];
    // Dispose of any resources that can be recreated.
}

@end