ios-string concatenation

main.m///* Two strings NSString * str1 = @ "123"; NSString * str2 = @ "abc"; Stitching into a full string. */#import int main (int argc, const char * argv[]) { /* method One * /// NSString * STR1 = @ "123";// NSString * str2 = @ "abc";///

Usage of IOS Runtime

What is runtime?1> Runtime is a set of underlying C language APIs(including many powerful and practical C-language data types, C-language functions)2> Actually, we write the OC code, the bottom layer is based on the runtime implementation* In other

about the text processing details of 50m+ in Android

For a long time did not write technical articles, 4 o'clock tomorrow morning also to climb up to catch the plane, feel the pit is necessary to record, to comfort their fragile soul. Monday and Tuesday busy 2 days to solve this problem, the middle

Activity for Android March 5

Public classMainactivity extends Appcompatactivity {PrivateEditText EditText;PrivateTextView TextView; @Overrideprotected voidonCreate (Bundle savedinstancestate) {super.oncreate (savedinstancestate); Setcontentview (r.layout.activity_ Main);

Data storage in Androidstudio use of third-party data management Bmob

---restore content starts---In the process of daily writing code, we are more painful is the establishment and use of the database, then today to introduce a third-party data management platform BMONB.First, we enter Bmob's official website to

PHP to do app interface development, interface security

1, when the user login to the app, using the HTTPS protocol to invoke the background related interface, the server based on the user name and password to generate a access_key, and Access_key saved in the session (or saved in Redis), the resulting

"Android Live" processing crash exception in Android

public class Mainactivity extends Actionbaractivity {public crashapplication application; @Overrideprotected void OnCreate (Bundle savedinstancestate) {super.oncreate (savedinstancestate); Setcontentview (R.layout.activity_main); Application =

Android-activity START Process

http://www.jianshu.com/p/6037f6fda285What is Zygote? What's the effect?Zygote means "fertilized egg".Inside the Android system, Zygote is the name of a process. Android is based on the Linux system, and when your phone is powered on, the Linux

Android Process Injection

Download all the code here: http://download.csdn.net/detail/a345017062/8133239There are two exe inside. INJ is an example of a C-layer process injection. Inj_dalvik is the Java injection I wrote.C-Layer process injected open source project by direct

APP packaging test process starts from scratch

Preface:the Apple App Packaging test has always been a headache. Especially when it's first packaged, because Apple's official website is full English and lacks careful step-up guidance. People who have just started to learn tend to spend a lot of

Android Learning notes Advanced 19 to the picture and border

[Java]View PlainCopy Set color public void setcolour (int color) { CO = color; } //Set Border width public void setborderwidth (int width) { BorderWidth = width; } Specific implementation:[Java]View

Android Learning notes Advanced 20 get thumbnail image of the picture

IntroductionIt was often done with bitmap, drawable, and canvas, and it was necessary to write a series of complicated logic to narrow down the original image to get a thumbnail image.Now I will introduce a relatively simple method: (online)In the

IOS online due to IPV6 rejected, query server support IPV6,MAC settings iPv6 network, mobile phone test iPv6

First, IOS----How to check whether the domain name supports IPv6IOS----------How to check if a domain name supports IPv61. Check the library you use, such as AF 3.0 or more (do not change), the other library to search their own support IPv6 it.2.

Common annotations provided by Android and custom annotations instead of enumerations

Respect for the work of others, reproduced please indicate the source: http://blog.csdn.net/gengqiquan/article/details/70185731, this article from: "Gengqiquan blog"The previous blog muttered the basics of annotations. This and everybody's chatter

iOS makes a circular effect on a picture

The Cashapelayer can be used to make random geometry, as a uiimageview mask, to make the picture into a circular effect.Imgview = [[Uiimageview Alloc]initwithframe:cgrectmake (Ten, +, +)]; Imgview.image = [UIImage imagenamed:@ "ma.jpg"];

Androidclient Performance Parameter Monitoring

Background:When I was doing the androidclient test. Sometimes it is necessary to monitor cpu/mem/power consumption/interface loading time/traffic and so on.So we went up and down, netizens told me two solutions: Anothermonitor and Emmagee, before. I

Android Image Processing series four-add a border to a picture (top)

Picture processing, sometimes you need to add a few borders to the picture, here is a method for adding a simple border to a picture.The basic idea is: to cut the border picture into eight small pictures (picture size is best consistent, otherwise

Call the KSOAP2 Library in Android to access the service side of the WebService service returns anytype{}

Recently in the graduation design, involving the Android access to the Web Service server database, and return a value, when I put the Web service test passed, want to write a simple Android test program, to implement server-side database access,

Android Siege Lion layout optimization

Android Common layout style 1.LinearLayout (linear layout) linear vertical Horizontal 2. Relativelayout (relative layout) The most flexible of 3. Tablelayout (table layout) is now replaced by the GridView 4.AbsoluteLayout (absolute layout) is

PX, DP, SP used in Android development

first introduce these units:px : pixels (pixels), the actual pixel point on the corresponding screen.Dip :d evice independent pixels, density independent pixels, based on the abstract unit of screen density.On a monitor that is 160 dots per inch.1DP

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