IOS

Applications need to extract a part of the picture to display, the study of the night also did not get a clear miscellaneous, only recourse to Google, Xamain forum find someone to put the method posted. Mark, please. Reference:

-(void) test1 { Nsmutablearray *_array = [[Nsmutablearray alloc] initwithobjects:@ "B1000", @ "AB100", @ "AA108", @ "009", @ "10000", @ "30000", nil]; _array = [[Nsmutablearray alloc] Initwitharray:[_array

Using this method to pass a value overrides the delegate. Concrete Example MainView.h #import @interface Mainview:uiviewcontroller { Iboutlet uibutton* btn; Iboutlet uilabel* labshow; } -(Ibaction) Push: (ID) sender; @end mainview.m #import

the value of iOS transfer values (i) 　　ios4.0 System has started to support block, in the programming process, blocks is obj-c as an object, it encapsulates a piece of code, this code can be executed at any time. Blocks can be the return value of a

Nstextfield Style Nstextalignmentleft = 0, //visually left aligned nstextalignmentcenter = 1, //visually centered nstextalignmentright = 2, Accessorytype typedef ns_enum (Nsinteger, Uitableviewcellaccessorytype)

The JSON format is no longer in detail when the iOS post request is made, as is the normal way Send string requires special handling, the code is as follows: 1, note the content-type,2, the character encoding, 3, after the completion of the code,

As a common standard of string transcoding in various languages, Base64 is loved by programmers. To introduce: The BASE64 encoding requires 3 8-bit bytes (3*8=24) to be converted to 4 6-bit bytes (4*6=24), followed by 6-bit two, to form 0-bit bytes.

Brief Introduction Each thread executes with a certain priority, with a priority of about 0.75 for the UI thread, a default priority of 0.5 for the newly created child thread, and a higher chance of execution for the higher priority, to show you

function in Uiimagepickercontrollerdelegate-(void) Imagepickercontroller: (Uiimagepickercontroller *) picker Didfinishpickingmediawithinfo: (nsdictionary *) Info implementation: -(void) Imagepickercontroller: (Uiimagepickercontroller *) Picker

Question title: How do you get the application AppID before uploading it? Question: In my application, the use of appirater, I need to set up appirater_app_id, in the development of the state how I can get appid. The answer: Roughly speaking, you

First, install Monkeydev (not jailbreak debugging): Non-jailbreak machines or use Xcode to debug third-party applications There are many integration steps, injection dylib, integrated reveal (UI analysis tools), Class-dump (view header file tool),

A moment of relaxation Http://t.cn/RhfSa04 Recently in doing a Bluetooth related project, need to be in the background of the application, or the phone belongs to the lock screen state, still keep the Bluetooth connection, and can normally receive

Coreimage Framework Composition Apple has helped us classify image processing to see its structure: Mainly divided into three parts: 1) Definition part: Coreimage coreimagedefines. See the name of Righteousness, represents the Coreimage this

In iOS development, you will encounter a view with a bubble type to do the background, sometimes uiview and Uiimageview, sometimes a dialog button, If the bubble picture is set directly, the picture will also pull up the small mouth of the bubble

The development of these days, there is a need to dynamically change the Tableviewheader interface, was directly in the viewdidload inside set a bit of tableviewheader=viewheader; Now assume that ViewHeader is the TableView head view)Then after the

Uideviceorientation is the current direction of rotation of the machine hardware. You can only take a value and not set Uiinterfaceorientation is the current rotation direction of your program interface this can be set Determine the current

Clipstobounds Property Description: Value: BOOL (yes/no) Role: Determines the display scope of the child view. Specifically, when the value is yes, it trims the portion of the child view that is outside the parent view range, and when the value

Defined: Closures are functions that can read internal variables of other functions. Essence: is a structure object that is copied by a pointer to the object of the struct body. Advantages: The code becomes clearer, writes the post-processing code

First type: NSString * timestampstring = @ "1423189125874";NSDate *date = [nsdate datewithtimeintervalsince1970:[timestampstring Doublevalue]/1000];NSLog (@ "%f", ([Date timeIntervalSince1970] * 1000.0)); The second type: NSString * timestampstring

Stick to the growth of a daily articleNote: The installation of Cocoapods, the use of the process is done under the Mac terminal. For the introduction of cocoapods here on the omission, there are a lot of introduction Cocoapods Bowen, we can own