1 #import "AppDelegate.h"
2 #import "UIImageView+WebCache.h"
3 //NSUserDefaults 实例化
4 #define USER_DEFAULT [NSUserDefaults standardUserDefaults]
5 #define kisActivities @"isActivities"
6
7 @interface AppDelegate ()
8
9 @end
10
11 @implementation AppDelegate
12
13
14 - (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
15 //判断应用第一次启动-----------------------------------------------------------------
16 NSString *filePath = [NSHomeDirectory() stringByAppendingPathComponent:@"Documents/isFirst.plist"];
17 //读文件(项目第一次运行,沙盒中没有文件 isFirstdic = nil)
18 NSDictionary *isFirstdic = [NSDictionary dictionaryWithContentsOfFile:filePath];
19
20 BOOL isFirst = [[isFirstdic objectForKey:@"isFirst"] boolValue]; //0 NO
21 //判断是否有app活动开展
22 BOOL isActivity = [[USER_DEFAULT objectForKey:kisActivities] boolValue];
23
24 if (!isFirst || isActivity) {
25
26 NSLog(@"第一次启动");
27 //如果是第一次启动，则启动引导页
28 NSArray* arr = @[ @"img_00", @"img_01", @"img_02", @"img_03", @"img_04" ];
29 for (int i = 0; i<arr.count; i++) {
30 [[SDImageCache sharedImageCache] storeImage:[UIImage imageNamed:arr[i]] forKey:[NSString stringWithFormat:@"img_0%d",i]];
31 }
32 }
33 //用字典在沙盒中写入文件,并将值为YES,项目以后再运行,读取到的值均为YES
34 NSDictionary *dic = @{@"isFirst" : @YES};
35 //将字典写到沙盒目录
36 [dic writeToFile:filePath atomically:YES];
37 //判断应用第一次启动-------------------------------------------------------------------
38 return YES;
39 }
