iOS应用管理(优化)

// ViewController.m

// 01-应用管理

// Created by apple on 17-5-14.

#import "ViewController.h"

@interface ViewController ()

@property(nonatomic,strong)NSArray *apps;

@end

@implementation ViewController

- (NSArray *)apps{

if (_apps == nil) {

// 1.获取plis文件的路径

NSString *path = [[NSBundle mainBundle]pathForResource:@"app.plist" ofType:nil];

// 2.读取文件

_apps = [NSArray arrayWithContentsOfFile:path];

}

return _apps;

}

- (void)viewDidLoad {

[super viewDidLoad];

// 1.设置frame的相关属性

CGFloat appViewW = 100;

CGFloat appViewH = 120;

CGFloat spaceX = 20;

CGFloat spaceY = 30;

CGFloat topMargin = 30;

CGFloat leftMargin = ( self.view.frame.size.width - 3 * appViewW - 2 *spaceX) *0.5;

// 2.创建格子

for (int i = 0; i < self.apps.count; i ++) {

// 2.1创建一个格子视图

UIView *appView = [[UIView alloc]init];

int row = i /3;//行号

int col = i % 3;//列号

CGFloat appViewX = leftMargin + (appViewW + spaceX)*col;

CGFloat appViewY = topMargin + (appViewH + spaceY )*row;

// 2.2设置frame

appView.frame = CGRectMake(appViewX, appViewY, appViewW, appViewH);

// 2.3添加

[self.view addSubview:appView];

// appView.backgroundColor = [UIColor redColor];//设置背景色

NSDictionary *dict = self.apps[i];

// 2.4添加图片

UIImageView *head = [[UIImageView alloc]init];

CGFloat headW = 60;

CGFloat headX = (appViewW - headW) *0.5;

CGFloat headY = 0;

CGFloat headH = 60;

head.image = [UIImage imageNamed:dict[@"icon"]];

head.frame = CGRectMake(headX, headY, headW, headH);

[appView addSubview:head];

// head.backgroundColor = [UIColor blueColor];

// 2.5添加label

// 2.5.1 创建一个文本标签

UILabel *nameLabel = [[UILabel alloc]init];

CGFloat nameLabelX = 0;

CGFloat nameLabelY = headY + headH;

CGFloat nameLabelW = appViewW;

CGFloat nameLabelH = 30;

nameLabel.frame = CGRectMake(nameLabelX, nameLabelY, nameLabelW, nameLabelH);

[appView addSubview:nameLabel];

// nameLabel.backgroundColor = [UIColor grayColor];

nameLabel.text = dict[@"name"];

// 2.5.2设置文字大小

nameLabel.font = [UIFont systemFontOfSize:13];

// 2.5.3设置文字居中

nameLabel.textAlignment = NSTextAlignmentCenter;

// 2.6添加button

UIButton *downLoadBtn = [[UIButton alloc]init];

CGFloat downLoadBtnX = 10;

CGFloat downLoadBtnY = nameLabelY + nameLabelH + 10;

CGFloat downLoadBtnW = appViewW - downLoadBtnX *2;

CGFloat downLoadBtnH = 30;

downLoadBtn.frame = CGRectMake(downLoadBtnX, downLoadBtnY, downLoadBtnW, downLoadBtnH);

[appView addSubview:downLoadBtn];

// downLoadBtn.backgroundColor = [UIColor greenColor];//设置背景色

[downLoadBtn setTitle:@"下载" forState:UIControlStateNormal];//设置文字

[downLoadBtn setBackgroundImage:[UIImage imageNamed:@"buttongreen"] forState:UIControlStateNormal];

[downLoadBtn setBackgroundImage: [UIImage imageNamed:@"buttongreen_highlighted"] forState:UIControlStateHighlighted];

// downLoadBtn.

// 按钮内部至少有两个控件,一个label,一个imageView,

downLoadBtn.titleLabel.font = [UIFont systemFontOfSize:14];

}

@end