uiapplication

Briefly describe the life cycle when the application presses the home key into the background and the life cycle from the background back to the foreground? The status of the application: not running is not running, the program does not start inactive inactive, the program runs in the foreground, but does not accept the event, there is no event processing state is usually in this state. The active activator is in the foreground and receives the event Backgound Daemon in the backgroun

Push notification code after the IOS8 version[[UIApplication sharedapplication] registerusernotificationsettings:[uiusernotificationsettings settingsForTypes :(Uiusernotificationtypesound | Uiusernotificationtypealert | Uiusernotificationtypebadge) Categories:nil];Note the following sentence, in IOS8 to register the push notification must be added [[UIApplication sharedapplication] registerforremotenotifica

/// Created by youni on 15/4/1. // Copyright (c) 2015 youni. all rights reserved. // import UIKit @ UIApplicationMainclass AppDelegate: UIResponder, UIApplicationDelegate, IChatManagerDelegate {var window: UIWindow? Var callback :( ([NSObject: AnyObject]!) -> Void )! Func application (application: UIApplication, didfinishlaunchingwitexceptions launchOptions: [NSObject: AnyObject]?) -> Bool {// Override point for customization after application launch

After reading Today, I will spend some time collecting some dry goods and then I can say goodbye with this book. Including: 10.1.3 do not send messages to released objects Some readers want to test whether the retainCount of an object is changed to 0 when it is released. Their test code is as follows: (remember to set it to MRC-fno-objc-arc in Appdelegate. m) -(BOOL) application :( UIApplication *) application didfinishlaunchingwitexceptions :( NS

category if ([[Uidevice currentdevice].systemversion Floatvalue] >= 8.0) {//can add custom categories [Jpushservice registerforremotenotificationtypes: (Uiusernotifi Cationtypebadge | Uiusernotificationtypesound | Uiusernotificationtypealert) Categories:nil]; } else {#if __iphone_os_version_max_allowed Fourth step: Create a Appdelegate classification that calls the class method i

Develop applications to understand their lifecycle.Today we touch the life cycle of the iOS app, the iOS portal in the main.m file:int main (int argc, char * argv[]) { @autoreleasepool { return Uiapplicationmain (argc, argv, Nil, Nsstringfromclas S ([Appdelegate class]));} }The two parameters of the main function are not available in iOS, including the two parameters for consistency with standard ANSI C. The Uiapplicationmain function, like the first two and main functions, focuses

{[Jpushservice showlocalnotificationatfront:notification identifierkey:nil]; return;}@endFourth step: Create a Appdelegate classification that calls the class method in Kjjpushhelper in this class//appdelegate+kjjpushsdk.h////Created by Mac on 16/5/5.//copyright©2016 Year Mac. All rights reserved.//#import "AppDelegate.h"@interfaceappdelegate (KJJPUSHSDK)-(void) Jpushapplication: (uiapplication *) application didfinishlaunchingwithoptions: (Nsdiction

completely removed from memory, freeing up more memory for the foreground app.is the program state change diagram:Callback for the agent when each program is running state:- (BOOL) Application: (uiapplication*) Application Willfinishlaunchingwithoptions: (nsdictionary*) launchoptions//tells the agent process to start but has not yet entered the state to save. The method is called automatically when the application is about to start, the first time th

notificationsNSDate *firedate =[NSDate Datewithtimeintervalsincenow:alerttime]; NSLog (@"firedate=%@", firedate); Notification.firedate=firedate; //Time ZoneNotification.timezone =[Nstimezone Defaulttimezone]; //set the recurrence intervalNotification.repeatinterval =Kcfcalendarunitsecond; //Notification ContentNotification.alertbody =@"It's time to get up ..."; Notification.applicationiconbadgenumber=1; //sounds that are played when notifications are triggeredNotification.soundname =Uilocalnot

number, and so on. Configure custom data parameter userinfo for notification delivery (this step is optional). Call notifications, you can use Schedulelocalnotification: Schedule a notification as scheduled, or use Presentlocalnotificationnow to call notifications immediately. Simple implementation of a local notification application, the specific code is as follows:In Appdelegate:#import"AppDelegate.h"#import"ViewController.h"@interfaceAppdelegate ()@end@implementationappdelegate-

Not much to say directly on the code#import "AppDelegate.h"@interface Appdelegate ()@end@implementation Appdelegate-(BOOL) Application: (UIApplication *) application didfinishlaunchingwithoptions: (Nsdictionary *) launchOptions {Override point for customization after application launch.If you have received authorization to send notifications, create a local notification, or request authorization (note: If you do not request authorization in the settin

= [[Uilocalnotification alloc] init];2. Set content for local notifications2.1. Set the time for the notification to be issued localnote.firedate = [NSDate Datewithtimeintervalsincenow:3.0];2.2. Set the content of the notification Localnote.alertbody =@ "What are you doing?";2.3. Set the text of the slider (lock screen State: swipe to "unlock") Localnote.alertaction =@ "unlock"; //2.4. Decide whether alertaction is effective localnote.hasaction = NO; //2.5. Set the start picture of the click no

stretching, etc. the main ideas of code level include refactoring to eliminate redundancy, selector citation analysis in Linkmap. Besides, is there any other path?As we all know, there is a call relationship between code. Assuming that the main portal for iOS is-[uiapplication main], the source code of all developers (including the third party libraries) can be divided into two categories: there is a call path, so that the code can be finally called

is still in memory, when the system memory is low, the system will remove the suspended program, to provide more memory for the foreground program. As shown in the following:Active and inactive. png2. UIApplicationMain function Explanation:Entry function:int main(int argc, char * argv[]) { @autoreleasepool { return UIApplicationMain(argc, argv, nil, NSStringFromClass([AppDelegate class])); } } UIApplicationMain(int argc, char *argv[], NSString *principalClassName,

; Uilabel *content=[[uilabel Alloc]init]; Content.frame=cgrectmake (60, 0, 50, 30); Content.textcolor=[uicolor Bluecolor]; [Self.contentview addsubview:content]; Self.content=content; return self; } @endUser #import #import "User.h" @implementation User @end Viewcontrol: VIEWCONTROLLER.M//Test_tableviewcell////Created by Shibo on 2017/3/15. copyright©2017 of the Year Shi Bo. All rights reserved. #import "ViewController.h" #import "User.h" #import "MyCe