UI-Day02--昨日作业代码（二）

 1 - (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
 2 
 3     // Override point for customization after application launch.
 4 
 5     self.window = [[UIWindow alloc]initWithFrame:[[UIScreen mainScreen] bounds]];
 6 
 7     self.window.backgroundColor = [UIColor purpleColor];
 8 
 9     
10 
11     [self createLabels];
12 
13     
14 
15     [self.window makeKeyAndVisible];
16 
17     return YES;
18 
19 }
20 
21 -(void)createLabels{
22 
23     
24 
25     NSArray * array = @[@"车",@"马",@"相",@"王",@"后",@"相",@"马",@"车"];
26 
27     
28 
29     for (int i = 0; i < 8; i++) {
30 
31         for (int j = 0; j < 8; j++) {
32 
33             
34 
35             //0 80
36 
37             UILabel * label = [[UILabel alloc]initWithFrame:CGRectMake(j*40, i*40+80, 40, 40)];
38 
39             
40 
41             //设置label背景色
42 
43             if ((i + j)%2 == 0) {
44 
45                 label.backgroundColor = [UIColor blackColor];
46 
47             }else{
48 
49                 
50 
51                 label.backgroundColor = [UIColor whiteColor];
52 
53             }
54 
55             
56 
57             //显示的文字
58 
59             if (i == 0 || i == 7) {
60 
61                 //j 0--7
62 
63                 label.text = array[j];
64 
65             }
66 
67             if (i == 1 || i == 6) {
68 
69                 label.text = @"兵";
70 
71             }
72 
73             
74 
75             //设置字体颜色
76 
77             if (i == 0 || i == 1) {
78 
79                 label.textColor = [UIColor redColor];
80 
81             }
82 
83             if (i == 6 || i == 7) {
84 
85                 label.textColor = [UIColor yellowColor];
86 
87             }
88 
89             label.textAlignment = NSTextAlignmentCenter;
90 
91             label.adjustsFontSizeToFitWidth = YES;
92 
93             [self.window addSubview:label];
94 
95         }
96 
97     }
98 
99 }

 1 - (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
 2 
 3     
 4 
 5     self.window = [[UIWindow alloc]initWithFrame:[[UIScreen mainScreen] bounds]];
 6 
 7     self.window.backgroundColor = [UIColor whiteColor];
 8 
 9     
10 
11     [self nineLabels];
12 
13     
14 
15     [self.window makeKeyAndVisible];
16 
17     return YES;
18 
19 }
20 
21 -(void)nineLabels{
22 
23     
24 
25     for (int i = 1; i <= 9; i++) {
26 
27         for (int j = 1; j <= i; j++) {
28 
29             
30 
31             // i  描述 y坐标
32 
33             // j  描述 x坐标
34 
35             
36 
37             //宽度 32 空隙 2  高度 20
38 
39             UILabel * label = [[UILabel alloc]initWithFrame:CGRectMake((j-1)*(32 + 2), (i - 1)*(20 + 2)+80, 32, 20)];
40 
41             label.backgroundColor = [UIColor grayColor];
42 
43             label.text = [NSString stringWithFormat:@"%d*%d=%d",j,i,j*i];
44 
45             label.textColor = [UIColor greenColor];
46 
47             //字体根据label的宽度改变大小
48 
49             label.adjustsFontSizeToFitWidth = YES;
50 
51             //label根据字体改变宽高
52 
53 //            [label sizeToFit];
54 
55             
56 
57             [self.window addSubview:label];
58 
59         }
60 
61     }
62 
63 }