Common IOS design modes-singleton mode (IOS development)
Common IOS design modes include Singleton mode, delegate mode, observer mode, and MVC mode.
The Singleton mode is described here.
Singleton Mode
-Problem: only one instance is used in
IOS7 and above navigationBar to block the page solution., ios7navigationbar
In IOS7 and later versions, the solution to the navigationbar vehicle interface is as follows: In viewDidload, add the following code.
if( ([[[UIDevice currentDevice]
OC learning Day1, ocday1
OC Program Development ProcessSimilar to C:
First OC Program
Second OC ProgramFind NSObjCRuntime. h:Show Package contentContents → Developer → Platforms→ IPhoneOS. platform → Developer → SDKS→ IPhoneOS8.1.sdk → System →
Fmdbcurrently
Problem 1: The scenario "is currently in use" is as follows: multi-threaded database operations, each thread uses an FMDatabase instance (note that FMDatabaseQueue is not used ).
Problem 2: the scenario of "database is locked" is as
[IOS] third-party login, ios third-party Login
I. Download the SDK
Https://open.weixin.qq.com/cgi-bin/frame? T = resource/res_main_tmpl & verify = 1 & lang = zh_CN & target = res/app_download_ios
Ii. Configure the environment
Drag files into the
View opacity in iOS and view opacity in iOS
Simulator Toolbar
Debug -- Color Blended Layers
Display in Chinese
Debugging -- Color Mixing Layer
The green color indicates the opaque part, and the red color indicates the transparent part. The
C and oc and some notes of the Foundation framework, ocfoundation framework
C, oc, and basic knowledge of the Foundation framework, these summaries all come to MJ's public video learning. Here we mark it for your convenience and keep learning.
IOS development-use NSInputStream to read large files row by row
Sometimes, when reading a file, we may directly read the file into the memory at one time and then split it by row. This is good for small files, but it is not ideal when the files are
About changing the status bar color after ios7
Once I see it on the Internet, I want to set it after ios7.
First, add the key UIViewControllerBasedStatusBarAppearance In the Info. plist configuration file and set it to YES;
Then, implement the
In ios8, hundreds of pushing messages cannot be received.
In ios8, the type of the Baidu push and receive will change:
// Message push Registration
If ([[[UIDevicecurrentDevice] systemVersion] floatValue]> = 8.0)
{
Modal view (IOS development)
Mode: the mode view slides out from the bottom of the screen. When you complete the operation, you need to disable the mode view. If you do not disable the mode view, you cannot do anything else. It must have the meaning
SVN common errors (long-term updates) and svn Common Errors
I. Short Description in svn.A: add, add C: conflict, conflict D: delete, delete M: modify, local modification G: modify and merGed, local file modification and merge with server U: update:
XCode6.0 iOS Certificate-free real machine test method (both MAC and black apple are valid)
Currently, iOS programs developed on XCode can only run in Simulator. If you want to test on a real machine, you need an officially authenticated developer
TabBarItem selected color custom settings in tabBar, tabbartabbaritem
1. In storyBoard, select tabBarController and set tabBar
2. directly set code
TabBarController. tabBar. selectedImageTintColor = [UIColor orangeColor];
Modify the tabBarItem
Face ++ cloud album app IOS source code, faceios
This source code is a good photo album application. Face ++ cloud album application source code uses Face recognition as the basis for user registration and login. After logon, you can enter your
Ios-view, ios View
A view is what you see on the screen and what you interact with by touching the screen. Therefore, a view is a main component of the visualization and touchability of an application.
1.1 subview and parent View
UIView *v1 =
IOS getting started tutorial (III)-C Language Features
// 3. C language features // 3.1 Function Definition // function return type function name (parameter) {// dosomthing //} This is the general function definition, // there is an old function
ETActivityIndicatorViewDemo, pageindicatorview
Source code: http://url.cn/PSQqVB
:
Engineering Drawing:
Note that this code should be added to the third-party library ETActivityIndicatorView.
RootViewController. m
// Click
Add an index for IOS)
Indexes are used to assist in queries.
Principles:
-The index title cannot be exactly the same as the displayed title;
-Indexes should be representative and can represent a data set;
-If the index list view is used, the
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