IOS

Gesture Operation---Recognition click or double-clickThe problem with recognizing both the click Gesture and the double-click gesture on the view is that when a click is detected, it is not certain that it is indeed a click or just the first click

Copy Code code as follows: Inside a function (initialization, etc.), add the scope to identify the touch event Infoview=[[uiview Alloc] Initwithframe:cgrectmake (20, 100,220, 280)];//range, out of this range will not detect the touch of

First in Interface Builder select Textfields, and then in the text Field attributes found text Input Traits, select Return key for done. Ok Defining methods -(Ibaction) textfielddoneediting: (ID) sender; Press the done key to close the keyboard

First enter finish and press done on the keyboard to turn off the keyboard First in Interface Builder select Textfields, and then in the text Field attributes found text Input Traits, select Return key for done. Ok Defining methods Copy

Compare the original method: Copy Code code as follows: AsyncImageView.h: #import @interface Asyncimageview:uiview { nsurlconnection* connection; nsmutabledata* data; } -(void) Loadimagefromurl: (nsurl*) URL; @end

Copy Code code as follows: Txtlbl.font = [Uifont boldsystemfontofsize:14.0f]; Txtlbl.numberoflines = 0; NSString *str = @ "Albania decided to set up a network of science and technology to leave the TV show cent W amount of two mainland

Copy Code code as follows: -(NSString *) DataPath: (NSString *) file { NSString *path = [[Nshomedirectory () stringbyappendingpathcomponent:@ "Documents"] stringbyappendingpathcomponent:@ " Badge "]; BOOL bo = [[Nsfilemanager Defaultmanager]

In some applications, we need to use a camera for the iOS device to take pictures, videos. and choose the pictures or videos we need from the album.For iOS camera and photo album applications, you can use the Uiimagepickercontroller class to

Viewcontroller page JumpWhen you jump from one controller to another controller, you typically have the following 2 kinds:1, the use of Uinavigationcontroller, call Pushviewcontroller, to jump, this use of pressure stacks and out of the stack of the

Uiviewcontroller as the name suggests: View Controller. You should play the role of the control layer in the MVC design pattern. Some beginners at the beginning of the time did not understand why there is a uiview to uiviewcontroller what to do, not

In development, there may be a lot of times need to do a bit of praise needs, if the button implementation, the button as a system composite control, external is a view--"Uicontrol container, the interior contains Uilabel and UIImage, as well as

When you need to lock it, that is, when more than one thread at the same time to operate a variable, you need to add a lock. On the Code declaring variables @interface Viewcontroller () @property (Strong, nonatomic) Nsthread

The widget implementation for iOS development Objective The advent of IOS extension makes it easier for users to view applications, such as users can view the application's brief information in today's widgets, and then click into the relevant

Objective: In the development process, a UI development approach like Android and other platforms requires a mask diagram to display part of the UI or icon resources. iOS controls have alpha values, but this value is transparent to the entire icon

Summary and difference of KVC, KVO, Nsnotification, delegate in IOS 1, KVC, refers to the nskeyvaluecoding, an informal protocol, provides a mechanism to indirectly access the object's properties. Rather than by invoking the setter, getter method

IOS Solution URL Chinese garbled problem solving When making an HTTPS connection, the client is to synthesize an HTTPS address If the address contains Chinese, the program will be crash, check found that the original is not the reason for the

To achieve similar progressview used in micro-letters, to achieve the effect as shown CCProgressView.h//Hurricaneconsumer////Created by Wangcong on 15-3-25. Copyright (c) 2015 Wangcong. All rights reserved. #import #import /** * Animation

In the use of UIButton, you need to implement UIButton to the left of the picture, the picture immediately following the text effect is more trouble, the simple implementation of the specific code is as follows: (void) Viewdidload {[Super

Say no more, the method is as follows: First, open the terminal, with the CD command to locate the project in the directory, and then call the following name can be the number of each source code file lines and the total count out: Find.

As usual, we'll look at the effect chart. What do you think? The effect is very good, let's look at the implementation of the process and code examples. Implementation principle As can be seen from the diagram, the explosion point is taken by