iphone 7 vs iphone 8 vs iphone x

IPhone 4S is connected to a computer and cannot recognize iPhone devices: Apple mobile device USB driver Driver Installation failure shows yellow exclamation mark Solution Apple mobile device USB driver Driver Installation failure shows a yellow exclamation point, cannot charge, let alone iTunes. The correct solution is: 1. Uninstall the iTunes software installed on your computer, and then Uninstall "A

a first responder, such as a mouse event or a keyboard event, which is the corresponding object. For example, in a multi-document program, the menu response events are generally connected to the FirstResponder, because the main interface is generally in another nib. At this time, FirstResponder is the FileOwner of your primary nib.Delegate object.Window. Window displayed when the application is started.After the application is started, you can customize your behavior as shown in the following f

The following is a summary of some problems when using h264 + AAC for video playback on iPad, iPhone, itouch, and other terminals. 1: audio and video synchronization problems The reason is mainly because of the TS file timestamp problem. Sometimes it will also cause problems after file encapsulation type conversion, For example, FLV-ts will cause audio and video to be not synchronized. The base time used by FLV (reference time): one second =

In iPhone development, we often need to perform animation switching between different pages, which looks better. There are three basic animations: 1. uiview Uiview provides five official animation effects for you: Uiviewanimationtransitionnone does not use the animation rotate from left to right to flip pages. The opposite is uiviewanimationtransitioncurlup, and uiviewanimationtransitioncurldown. Example: [Uiview beginanimations: @ "animat

1) on the Apple 6 mobile phone, click the "Settings" icon on the desktop, as shown in the following figure.2) then you can see a "sound" option in the "Settings" that you open, as shown in the following figure. (As shown in the following figure)3) click "sound" and enter the corresponding ringtone mode. For example, select the "Ringtone" option. (As shown in the following figure)4) Now we can change the vibration mode when the "Ringtone"

Step 1: Connect your iPhone to your computer and enable iTunes on your computer.Step 2: Click the device in itunes, and then click the video (music) icon and click "file menu"-"add file to database", as shown in the figure.Music:Step 3: Now our impact will be displayed in itunes.Step 4: Click "file-add file to database", or add the entire audio/video folder to the database, and then select the file or folder to be added o

1. To Download WeChat from Apple 6, we must go to the Apple App Store to download it. Click the App Store App on the iPhone 6 desktop.2. After opening the App Store, we will see a "search" column at the bottom (if the appstore is very slow, we can refer to: appstore cannot open the appstore blank problem solution)3. Enter "WeChat" in the search box and then click "Search".4. Now you will see the "WeChat" app. Cl

"How to replace the iphone battery _iphone battery Replacement Method" 1, as shown in the following figure we have two screws in the back of the Apple 4, we just need to use professional Qi to twist it off. 2, after lifting the screws, you need to push up the rear cover as shown. This process needs to be very careful, otherwise the glass shell is likely to be damaged: 3, okay, now we can get the battery out, but one thing to note is that the ba

　 1. Remove scratches with toothpaste Toothpaste is commonly used in daily life cleaning products, in addition to our daily teeth tooth protection, toothpaste can also be used to remove the iphone screen scratches oh. In the selection of toothpaste, as long as the general toothpaste on it, please do not use gel-type toothpaste. Remove screen scratches with toothpaste: The first step is to squeeze a small amount of t

What are the new features of iOS11? Does the old iPhone really slow down? ios11 new features iphone 1. [iOS 11] Introduction to the top ten practical new functions of iOS 11 2. [iOS 11] iPhone QR code scanning can be completed through built-in cameras! 3. built-in screen recording function for iOS 11! You no longer need to use a third-party application to scre

Use a built-in browser to click the drop-down box and the page jumps to the iphone. What should I do? Jump to the iphone Read more: how to pay for H5 pages with built-in browsers Scenario reproduction: While happily packing up and preparing for work, the girl in the test department ran to raise a bug: "under the iphone, click the drop-down box and the page jumps

Why do you require android to be smoother than iphone ?!, Why Android iPhone? I saw an article titled why Android phones are not as smooth as iPhone phones? There are many reasons for this: the android multi-thread operation continues to run even if it is removed to the background; android uses java (in fact, android uses a custom virtual machine ), ios uses obje

When developing an iPhone program, the first thing that comes into use is not the source code, but the project files and directories. Let's take a look at its composition. IPhone application directory structureIPhone applications are placed in a secure structure called sandbox. The program can only access resources in its own sandbox. IPhone applications and Mac

1. The reason for this problem is that our mobile phone is turned on to find My iphone feature, so that when we upgrade the system activation will prompt for an Apple ID verification, this must be your own this iphone oh. 2. The above operation will also have a "look up my iPhone" then we need to enter the Apple ID to activate OH. 3. When we brush the machi

Address: http://www.bestuniversities.com/blog/2009/100-free-courses-tutorials-for-aspiring-iphone-app-developers/ Unless you 've been living under a rock, you know that the iPhone is a big deal and it's one of the most popular subjects of development these days. lots of developers are creating their own iPhone apps, and with the right know-how, you can too. che

of pixels. If you need to stretch, do not appear in the transverse direction of some gradients.7, the button's click Area, should not be less than 44 pixels, even if the button's picture looks small, also should make the point button around the transparent area also has the reaction.8, you can according to your current most convenient test machine model to do some of the main preview map. For example, you

It is very easy to add a startup image for ipadand iPhone apps. The basic idea is to add the startup image resource default.png. You only need to have different image sizes according to different resolutions and rotation directions. Currently, iOS devices have four different resolutions:1 iPad 768x1024 2 new pad 1536x2048 3 iphone4 640x9604 iPhone 320x480 If a program supports both iPad and

The above focuses on the flash and the next step is jailbreak (this article is applicable to the situations where the above mentioned prerequisites are met, and other future versions may not be applicable, so the participants may consider it) I. Preparation 1. Connect the iPhone to the Mac and then shut down 2. Press and hold the open key for 3 seconds, jump out of the white apple, and release it. Ii. Jailbreak 1. Open Red Snow and click jai

Iphone/Ipad wireless projection to PC, Iphone Ipad projection pc Original Blog, reprinted, please indicate the sourceBlog.csdn.net/hello_hwc Some projection technologies will inevitably be used for Demo presentation of applications. At this time, it seems a little bad to give a speech with a data line. At this time, wireless projection is better. This article uses Mac as an example to introduce how to u

1. You need to add a boot image with the size: 640*1136. After the image is created, the name is default-568h@2x.png. InCodeDetermine iPhone 5? (Image-1) :( image-1-os5), no such as @ 22x. # DefineIphone5 ([uiscreen instancesrespondtoselector: @ selector (currentmode)]? Cgsizeequaltosize (cgsizemake (640,113 6), [[uiscreen mainscreen] currentmode]. Size): No) 2. for iPhone 5, the view is 568, minus NAV