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