NSURL *url = [NSURL URLWithString:@"itms-beta://"]; // 检测是否安装Testflight BOOL type = [[UIApplication sharedApplication] canOpenURL:url]; if (type == YES) { //已经安装 打开测试连接 url = [NSURL URLWithString:@"https://testflight.ap...

在控制器调用恢复状态栏事件#import "ViewController.h"@interface ViewController ()@end@implementation ViewController- (void)viewDidLoad { [super viewDidLoad]; // Do any additional setup after loading the view. [self restoreStatusBarOrientation];}

开发环境 Xcode 10.1运行环境 iOS 12.1说一下问题场景，这个是分享成功后调用服务器方法保存分享数据到服务器，基本上成功不了几次，只有偶尔才能调用接口成功，开始以为是AFN的问题，结果上网搜索已经有人给苹果反馈问题，很显然这个锅AFN不背，虽然是APPLE问题，但也要想办法解决。https://github.com/AFNetworking/AFNetworking/is...

#import "Reachability.h"@property (nonatomic,strong) Reachability* reach;- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOp

#import"AppDelegate.h"//  在控制器内操作根视图 UIStoryboard *storyboard = [UIStoryboardstoryboardWithName:@"Main"bundle:[NSBundlemainBundle]];id view = [storyboardinstantiateViewControll

// 登陆时存一个值    NSUserDefaults *userDefaults = [NSUserDefaults standardUserDefaults];    [userDefaults setObject:_UserName.text forKey:@"logname"];    [userDefaults synchronize];// 判

AppDelegate *app = (AppDelegate *)[[UIApplication sharedApplication] delegate];app.vbool==YES;

-(IBAction)openMaps {//打开地图　　// Where is Apple on the map anyway?　　NSString* addressText = @”1 Infinite Loop, Cupertino, CA 95014″;　　// URL encode the spaces　　addressText =  [addressText strin

#import "sys/utsname.h"- (void)viewDidLoad {    [superviewDidLoad];    // Do any additional setup after loading the view, typically from a nib.    UIDevice *divce = [UIDevice

NSSetUncaughtExceptionHandler (&UncaughtExceptionHandler);//  收集崩溃信息的调用方法void UncaughtExceptionHandler(NSException *exception) {    NSArray *arr = [exceptioncallStackSymbols];//得到当前调用栈信息

//____________________.h_____________________________#import #import @interface UncaughtExceptionHandler :NSObject{    BOOL dismissed;}@endvoid HandleException(

利用UIApplication对象,能进行一些应用级别的操作.可以设置应用程序图标右上角的红色提醒数字设置联网指示器的可见性可以设置应用程序的状态栏，进行应用之间的跳转.UIApplication功能1.设置应用提醒数字（桌面角标）获取UIApplication对象UIApplication *ap = [UIApplication sharedApplication]