首页
外包任务
产品创意
技术问答
机器人订阅
关于本站
意见建议
全站内容可通过钉钉、飞书、企业微信群机器人免费订阅,内容更新即时送达
订阅
查询关键字
查询标签
原子属性和非原子属性有什么区别?
ios
objective-c
properties
atomic
nonatomic
在视图控制器之间传递数据
ios
objective-c
swift
model-view-controller
uiviewcontroller
如何为项目中的单个文件禁用 ARC?
objective-c
xcode
automatic-ref-counting
manual-retain-release
如何对包含自定义对象的 NSMutableArray 进行排序?
ios
objective-c
sorting
cocoa-touch
nsmutablearray
performSelector 可能会导致泄漏,因为它的选择器是未知的
ios
objective-c
memory-leaks
automatic-ref-counting
如何在 Objective-C 中检查一个字符串是否包含另一个字符串?
ios
objective-c
string
range
substring
Objective-C 中用于连接 NSString 的快捷方式
objective-c
nsstring
string-concatenation
Objective-C 中的 typedef 枚举是什么?
objective-c
enums
typedef
如何从 Swift 调用 Objective-C 代码?
objective-c
swift
Objective-C 中的常量
ios
objective-c
cocoa
nsstring
constants
如何为约束更改设置动画?
ios
objective-c
animation
autolayout
ios6
如何将 NSString 值转换为 NSData?
ios
objective-c
nsstring
nsdata
如何查看iOS版本?
ios
objective-c
您如何在延迟后触发块,例如 -performSelector:withObject:afterDelay:?
ios
objective-c
grand-central-dispatch
objective-c-blocks
如何在 Objective-C 中创建委托?
ios
objective-c
cocoa
callback
delegates
在 Objective-C 中生成随机数
objective-c
random
@class 与 #import
objective-c
cocoa
cocoa-touch
如何在 Objective-C 中测试字符串是否为空?
ios
objective-c
nsstring
iOS 8 UITableView 分隔符插入 0 不起作用
ios
objective-c
swift
uitableview
ios8
NS前缀是什么意思?
ios
objective-c
cocoa
cocoa-touch
terminology
在 Objective-C 中通过 NSNotificationCenter 发送和接收消息?
ios
objective-c
nsnotificationcenter
定位服务在 iOS 8 中不起作用
objective-c
ios8
location
cllocationmanager
UITextField 文本更改事件
ios
objective-c
swift
event-handling
uitextfielddelegate
如何将 NSString 转换为 NSNumber
objective-c
nsstring
nsnumber
primitive-types
dispatch_after - Swift 中的 GCD?
objective-c
swift
grand-central-dispatch
在 Objective-C 中,我如何测试对象类型?
objective-c
@synthesize 与 @dynamic,有什么区别?
objective-c
cocoa
cocoa-touch
properties
synthesize
在 ARC 下,IBOutlets 应该强还是弱?
ios
objective-c
cocoa-touch
interface-builder
automatic-ref-counting
如何以编程方式创建基本的 UIButton?
ios
objective-c
cocoa-touch
uibutton
programmatically-created
如何以编程方式在 iPhone 上发送短信?
ios
objective-c
cocoa-touch
sms
如何隐藏 UINavigationBar 1px 底线
ios
objective-c
swift
ipad
uinavigationbar
如何将 UIButton 的标题设置为左对齐?
ios
objective-c
xcode
cocoa-touch
uibutton
在 Objective-C 中创建一个抽象类
objective-c
abstract-class
如何浏览文本字段(下一步/完成按钮)
ios
objective-c
iphone
设置 UITextField 的最大字符长度
ios
objective-c
cocoa-touch
uitextfield
“__block”关键字是什么意思?
objective-c
ios
objective-c-blocks
如何将百分号添加到 NSString
objective-c
nsstring
string-literals
如何迭代 NSArray?
objective-c
cocoa
iteration
nsarray
enumeration
如何检查 NSDictionary 或 NSMutableDictionary 是否包含密钥?
objective-c
foundation
类方法和实例方法有什么区别?
objective-c
oop
methods
class-method
instance-methods
如何在 Xcode 4 中设置 NSZombieEnabled?
objective-c
xcode
xcode4
nszombie
@import 与 #import - iOS 7
ios
objective-c
import
ios7
iPad 多任务支持需要这些方向
ios
objective-c
iphone
xcode
ipad
如何打印出方法名称和行号并有条件地禁用 NSLog?
objective-c
cocoa
cocoa-touch
xcode
nslog
在 iOS 中获取当前设备语言?
ios
objective-c
xcode
cocoa-touch
nslocale
如果您使用 CocoaPods,您的 .gitignore 会包含什么内容?
objective-c
git
cocoapods
如何在 Swift 中发出 HTTP 请求?
ios
swift
objective-c
http
nsurlsession
核心数据:删除实体所有实例的最快方法
ios
objective-c
core-data
在objective-c/cocoa中抛出异常
objective-c
cocoa
exception-handling
是否可以使用 NSLog C 结构(如 CGRect 或 CGPoint)?
c
objective-c
cocoa
cocoa-touch
比较浮点值有多危险?
objective-c
ios
c
floating-point
floating-accuracy
__attribute__((constructor)) 究竟是如何工作的?
c++
objective-c
c
gcc
文件是通用的(三个切片),但它不包含 iOS 上静态库的(n)ARMv7-s 切片错误,无论如何要绕过?
ios
objective-c
xcode
ios6
static-libraries
以编程方式设置 UIButton 标题 UILabel 字体大小
objective-c
cocoa-touch
ios
uibutton
font-size
Objective-C 中的#import 和#include 有什么区别?
objective-c
import
include
创建模糊叠加视图
ios
objective-c
graphics
filtering
core-image
将块内的变量分配给块外的变量
objective-c
compiler-errors
objective-c-blocks
如何使用返回键关闭 UITextView 的键盘?
iphone
objective-c
keyboard
uitextview
iphone-softkeyboard
如何将 NSMutableArray 转换为 NSArray?
objective-c
cocoa-touch
cocoa
nsmutablearray
nsarray
如何向 UIButton 添加多行文本?
ios
objective-c
cocoa-touch
uibutton
uikit
上一页
下一页
微信扫一扫,
访问火星来客小程序
关注公众号
不定期副业成功案例分享
python
javascript
java
c#
android
c++
html
php
ios
jquery
css
.net
git
sql
c
node.js
mysql
string
objective-c
linux
r
ruby-on-rails
swift
arrays
ruby
sql-server
bash
iphone
reactjs
django
json
asp.net
angular
xcode
windows
typescript
angularjs
regex
pandas
asp.net-mvc
macos
postgresql
performance
visual-studio
spring
eclipse
docker
shell
python-3.x
database
unit-testing
multithreading
algorithm
wpf
c++11
list
scala
github
android-studio
datetime
mongodb
xml
numpy
go
twitter-bootstrap
laravel
http
amazon-web-services
date
google-chrome
flutter
vim
maven
intellij-idea
debugging
dictionary
file
ajax
unix
matplotlib
haskell
linq
dataframe
tsql
oop
rest
npm
image
entity-framework
gradle
function
cocoa-touch
gcc
generics
react-native
python-2.7
dart
visual-studio-code
kotlin
powershell
security
exception
class
ubuntu
java-8
command-line
asp.net-core
winforms
ruby-on-rails-3
sorting
logging
oracle
hibernate
syntax
visual-studio-2010
spring-boot
android-layout
forms
excel
sqlite
firebase
sql-server-2008
testing
version-control
ecmascript-6
types
enums
express
math
templates
vue.js
object
apache
lambda
collections
ssl
validation
inheritance
spring-mvc
asynchronous
rust
url
dom
svn
variables
design-patterns
qt
cocoa
csv
asp.net-mvc-3
reflection
pip
optimization
perl
jpa
random
apache-spark
uitableview
batch-file
ggplot2
webpack
unicode
ssh
asp.net-web-api
pointers
vb.net
language-agnostic
tensorflow
android-fragments
functional-programming
junit
memory
parsing
amazon-s3
authentication
facebook
serialization
events
installation
flask
loops
.net-core
jenkins
stl
nginx
azure
curl
constructor
hash
file-io
terminal
delphi
indexing
google-maps
time
async-await
svg
selenium
concurrency
opencv
web-services
django-models
user-interface
null
xaml
sockets
data-structures
emacs
symfony
kubernetes
caching
path
floating-point
memory-management
vector
email
interface
vba
machine-learning
casting
assembly
sql-server-2005
directory
browser
build
networking
ipad
cookies
css-selectors
android-gradle-plugin
razor
firefox
exception-handling
static
language-lawyer
api
constants
internet-explorer
coding-style
mocking
iis
merge
colors
configuration
activerecord
heroku
tomcat
visual-studio-2012
pdf
cmake
android-activity
asp.net-mvc-4
properties
swing
environment-variables
docker-compose
methods
for-loop
dependency-injection
wcf
jquery-ui
scripting
if-statement
cordova
cmd
makefile
operators
text
database-design
wordpress
input
clojure
integer
https
maven-2
session
encoding
import
plot
utf-8
error-handling
jvm
formatting
post
replace
layout
android-intent
search
amazon-ec2
visual-studio-2015
msbuild
twitter-bootstrap-3
struct
winapi
elasticsearch
iterator
java-stream
initialization
module
image-processing
laravel-5
visual-studio-2008
orm
fonts
mongoose
sqlalchemy
encryption
console
matlab
select
terminology
branch
reference
canvas
listview
android-recyclerview
garbage-collection
redirect
ios7
ide
split
groovy
google-chrome-devtools
iframe
selenium-webdriver
file-upload
jakarta-ee
keyboard-shortcuts
http-headers
animation
jestjs
grep
redux
homebrew
boost
sed
google-chrome-extension
escaping
markdown
websocket
stored-procedures
naming-conventions
boolean
visual-c++
scipy
uiview
join
keras
arraylist
redis
promise
x86
nuget
jdbc
scroll
scope
flexbox
rspec
jackson
virtualenv
button
android-edittext
parameters
type-conversion
compiler-construction
mercurial
jar
c#-4.0
ipython
timezone
set
foreach
compilation
jupyter-notebook
recursion
laravel-4
dom-events
io
f#
video
ios8
textview
architecture
namespaces
scikit-learn
process
google-app-engine
cors
ruby-on-rails-4
package
adb
visual-studio-2013
servlets
web-applications
dockerfile
swiftui
tfs
jsp
hashmap
hadoop
uikit
android-emulator
html-table
annotations
attributes
react-router
openssl
deployment
dll
sass
comparison
xpath
jquery-selectors
matrix
character-encoding
mockito
ansible
eloquent
vuejs2
tuples
gdb
numbers
find
switch-statement
xcode6
data-binding
jsf
diff
pycharm
timestamp
copy
audio
django-rest-framework
angularjs-directive
core-data
ffmpeg
cryptography
apache-spark-sql
.net-4.0
multidimensional-array
printing
dependencies
visual-studio-2017
safari
.htaccess
download
parallel-processing
rubygems
mvvm
permissions
backbone.js
c-preprocessor
pyspark
opengl
dplyr
group-by
editor
r-faq
angular-cli
int
deep-learning
aws-lambda
asp.net-core-mvc
latex
tcp
dynamic
localization
spring-security
json.net
android-actionbar
cross-browser
gitignore
anaconda
awk
hyperlink
git-branch
continuous-integration
d3.js
composer-php
google-maps-api-3
rxjs
g++
filter
ios-simulator
proxy
oauth
newline
callback
checkbox
base64
header
passwords
oauth-2.0
clang
memory-leaks
mobile
nosql
compiler-errors
build.gradle
task-parallel-library