IOS中實現九宮格，IOS實現九宮格

IOS中實現九宮格，IOS實現九宮格

實現九宮格的演算法思路：

 

具體樣本：

 1 // 2 //  ViewController.m 3 //  九宮格 4 // 5 //  Created by 李前途 on 15/3/26. 6 //  Copyright (c) 2015年 李前途. All rights reserved. 7 // 8  9 #import "ViewController.h"10 11 @interface ViewController ()12 13 @property (nonatomic,strong) NSArray *data;14 @end15 16 @implementation ViewController17 18 - (NSArray *)data{19     if (_data == nil) {20         NSString *fileName= [[NSBundle mainBundle] pathForResource:@"app.plist" ofType:nil];21         _data = [NSArray arrayWithContentsOfFile:fileName];22     }23     24     return _data;25 }26 27 - (void)viewDidLoad {28     [super viewDidLoad];29     30     int colNumber = 3;31     32     CGFloat appW = 85;33     CGFloat appH = 90;34     35     36     CGFloat marginX = (self.view.frame.size.width - appW * colNumber) / (colNumber + 1);37     CGFloat marginY = 15;38     39     for (int index = 0; index < self.data.count; index++) {40         int row = index / colNumber;41         int col = index % colNumber;42         CGFloat appX = col * (appW + marginX) + marginX;43         CGFloat appY = row * (appH + marginY) + 30;44         UIView *appView = [[UIView alloc] init];45 //        appView.backgroundColor = [UIColor greenColor];46         appView.frame = CGRectMake(appX, appY, appW, appH);47         [self.view addSubview:appView];48         49         NSDictionary *dataDic = self.data[index];50         UIImageView *iconImg = [[UIImageView alloc] init];51         CGFloat iconW = 45;52         CGFloat iconH = 45;53         CGFloat iconX= (appW - iconW) / 2;54         CGFloat iconY = 0;55         iconImg.frame = CGRectMake(iconX, iconY, iconW, iconH);56         iconImg.image = [UIImage imageNamed:dataDic[@"icon"]];57         [appView addSubview:iconImg];58        59         60         UILabel *label = [[UILabel alloc] init];61         CGFloat labelW = appW;62         CGFloat labelH = 25;63         CGFloat labelX = 0;64         CGFloat labelY = iconH;65         label.frame = CGRectMake(labelX, labelY, labelW, labelH);66         label.text = dataDic[@"name"];67         label.font = [UIFont systemFontOfSize:13];68         label.textAlignment = NSTextAlignmentCenter;69         [appView addSubview:label];70         71         UIButton *btn = [[UIButton alloc] init];72         CGFloat btnX = 12;73         CGFloat btnY = labelY + labelH;74         CGFloat btnW = appW - 2 * btnX;75         CGFloat btnH = 20;76         btn.frame = CGRectMake(btnX, btnY, btnW, btnH);77         [btn setBackgroundImage:[UIImage imageNamed:@"buttongreen"] forState:UIControlStateNormal];78         [btn setBackgroundImage:[UIImage imageNamed:@"buttongreen_highlighted"] forState:UIControlStateHighlighted];79         [btn setTitle:@"下載" forState:UIControlStateNormal];80         btn.titleLabel.font = [UIFont systemFontOfSize:11];81         [appView addSubview:btn];82         83     }84     85     86     87 }88 89 - (void)didReceiveMemoryWarning {90     [super didReceiveMemoryWarning];91     // Dispose of any resources that can be recreated.92 }93 94 @end