Mobile Develop

When to use # define, when to use const?Effective Objective C ITEM4 says this:Prefer Typed Constants to preprocessor #define1. Avoid # define. Because there is no type information, and may be redefined2. defined as a static const in M files (in fact

1.  StoreFrontServer certificate RequestWe will request a Web server certificate for storefront, apply this certificate to the storefront IIS site, and bind IIS port 443 to this certificate so that we can safely access the storefront site from the

When doing the project, TextField can input the expression, but the iOS expression is two characters, and then calculate the length of the string is not the same as imagined, so the use of the method will be the length of the expression to 1, the

The Android system will continue the application process as long as possible, but it will inevitably need to remove the old process when the memory is too low. To decide to keep or remove a process, Android puts each process into a "level of

[NSDate Date] can obtain the system time, but it will cause a problem, the user can modify the phone system time, so sometimes need to use network time instead of system time. How to get the network standard Time:1, first where needed to implement

The graphics context is either a graphical or a canvas, and we can do the painting on it, and after the drawing is done, put the canvas in our view and view as a picture frame.Cgcontextref is powerful, and we can draw all kinds of graphics with it.

Go to: Action on files in Http://marshal.easymorse.com/archives/3340iOSBecause the application is in the sandbox (sandbox), the file read and write permissions are restricted, only a few directories to read and write files: Documents: User

Using Apktool to decompile the APK, and then compile back, found that the installation is not normal, and use ApkToolKitV3.0 decompile, and then compile back to the normal installation.The main reason is because the Apktool is compiled back with no

Recently saw a Daniel's analysis report, just know how superficial I understand the 4 commands, in fact, to read the memory of the information, is to some skill.1. TopVIRT Total virtual memory, Virt=swap+resSwap-out size in virtual memory used by

Reproduced IOSmultithreaded Programming for beginners, it is always difficult to understand and grasp, and nowthrough a few examples to more systematic and comprehensive understanding of iOS multithreaded programming, we hope to help. 1:

The controller is named: AuthGroupAction.class.phpProblem: In the controller jump. If the address is incorrectly sized when the template jumps: It will be reported that the module cannot be loadedError: Unable to load module:

iOS calculates the height of the string, with the need for a friend to refer to below.Method one: Applicable before ios7.0/** @method Gets the height of the specified width, font size fontSize, String value @param value the string to be evaluated

Emmagee IntroductionEmmagee is a performance testing gadget that monitors the CPU, memory, and traffic resources of a machine that is used by a specified application during use.The advantage of this tool is that, like Windows System Performance

Core date is the data persistence solution introduced after ios3.0, which is officially recommended by Apple and does not require a third-party framework. The Core date is actually a package for SQLite, providing a more advanced way to persist. When

~ Reprint Please indicate source: http://blog.csdn.net/u013015161/article/details/46689011IntroducedThese two days wrote a nine Gersing control, the implementation of nine Gersing settings and unlocking. The control does not use any picture

How do you solve this problem when your Android development process often handles network images that send memory overflows?Ideas:Download to LocalStore directories on your phone via Web Capture and file downloadCode:Get Network public InputStream

The book next to the Android performance test on the GPU (iv)Some of the performance test items that I've said before are probably all heard, and then we'll talk about the test items-power consumption, which we don't often focus on.The power test

/** * Test whether the current camera can be used * * @return * /Public static Boolean iscameracanuse () { Boolean canuse = true; Camera Mcamera = null; try { //TODO camera driver hangs up,

When you learn the Xutils framework, you see a line of code in the sample code:1 bitmaputils.configdefaultbitmapconfig (Bitmap.Config.RGB_565);What does Bitmap.Config.RGB_565 mean?Bitmap.config is an inner class within the Android.graphics.Bitmap

This address:http://blog.csdn.net/u011733020 First of all, write this just to learn, not to do anything illegal, if there is a problem, the relevant departments please contact me, immediately delete. Don't check my meter.The point: Here is the key