1 //called when the finger moves on the view2- (void) touchesmoved: (Nsset *) touches withevent: (Uievent *)Event3 {4 5Uitouch *touch =[touches anyobject];6 //0. Get the last location7Cgpoint Prepoint =[Touch previouslocationinview:self];8
the use of shape:shape is used to set the shape, can be used in selector,layout, etc., there are 6 sub-tags, the following properties:Fill: Sets the color of the fillinterval: sets the interval in four directionsSize: set Sizefillet: set five
1 //1. Get the graphics context2Cgcontextref CTX =Uigraphicsgetcurrentcontext ();3 4 //2. Draw a triangle5 //set the starting point6Cgcontextmovetopoint (CTX, -,Ten);7 //set a second point8Cgcontextaddlinetopoint (CTX, -, -);9
We can open our link or the target page directly in the Mindmapper built-in browser, do not need to jump to the system browser, and can be with the Map side window in one interface, add a lot of convenience. Below we will explain the Mindmapper
For outdated methods in the system or for backwards compatibility with different versions use the latest method to determine the current system version number, in making method calls1. Outdated comments for system methods"' OBJC-(void)
Android-classical-opensource Project Address: Https://github.com/eterrao/Android-Classical-OpenSource.gitIrregular updates, in order to find a convenient later, but also hope to facilitate the use of future generations:Trinea's Openproject: Highly
1- (void) DrawRect: (cgrect) Rect2 {3 //Drawing Code4 5 //draw a circle so that you can specify later to display the content range6Cgcontextref CTX =Uigraphicsgetcurrentcontext ();7 8Cgcontextaddellipseinrect (CTX, CGRectMake ( -, -,
iOS learning in Lan Yi another month, feel learned a lot, here the environment good learning atmosphere is also very good, Liu Guobin teacher taught the picture editor, simulated beauty 美图秀秀, the function to achieve the border, effect. filters, and
Details Link: http://www.ncloud.hk/%E6%8A%80%E6%9C%AF%E5%88%86%E4%BA%AB/ionic%E5%9C%A8android%E4%B8%8A%E9%83%A8%E7%BD% b2app%e6%ad%a5%e9%aa%a4/
Once you've built a project with ionic and want to publish it to each App store, we're going to
The difference between nil, nil, NULL, Nsnull
NIL: A null pointer to an object
Nil: A null pointer to a class
NULL: null pointer to other types (such as base type, C type)
NSNull: Usually represents a null value in a collection
1. Code to create a JSON file and save it to a localThe first step. Set JSON save path to file NSString *filepath = [Nshomedirectory () stringbyappendingstring:@ "/documents/myjson.json"]; NSLog (@ "%@", FilePath);The second step . preparing to
Process Control
Sequential structure: The default process structure. Each statement is executed in the written order.
Select structure: Judge a given condition and then decide which piece of code to execute based on the result of
Wireless printingWith AirPrint wireless printing, people can print content wirelessly from your app and use the Print Center app to check for print jobs.You can benefit from built-in support for printing images and PDF content, or you can customize
The directory structure of the IOS project shows your development experience
Recently, a brother interview with iOS development, he was surprised to tell me that the interviewer asked him how to divide the directory structure, but also
In android, you can turn on hardware acceleration on four different levels:1. application:2. Activity3. WindowGetWindow (). setflags (WindowManager.LayoutParams.FLAG_HARDWARE_ACCELERATED, WindowManager.LayoutParams.FLAG_ hardware_accelerated);4.
This morning to apply for a morning channel account, this job is too cumbersome, the application is Enterprise account number, need business license and other relevant information, assuming that the application of personal information is expected to
1 //drawing Arcs2 //1. Get Context3Cgcontextref CTX =Uigraphicsgetcurrentcontext ();4 //2. Draw Arcs5 //x/y Center6 //radius radius7 //StartAngle The beginning of the arc8 //Endangle end of Arc9 //clockwise draw the
React-native Development app, All components iOS & Android shared, share a piece of codeIncludes a number of custom components, such as navigationbar, TabBar, segmentedcontrol, using font icons, with a certain reference meaningThe main focus is on
The use of iOS development ZbarreaderviewHOMEaboutguestbookCATEGORIESTAGSLINKSSUBSCRIBE When you need to use QR Code recognition function in the development of iOS program, Zbar This open source library is estimated to be selected by many
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