Mobile Develop

iOS-supported devices now have a lot of size, and it's certainly unrealistic to make a separate app for each of these different sizes, so Apple launched AutoLayout and Sizeclass after IOS8, along with the VFL interface design languageLet's start

1. Decimal number Format tool: DecimalFormatDecimalFormat df = new DecimalFormat ();d ouble data = 1203.405607809; System.out.println ("Before formatting:" + data); String pattern = "0.0";//1203.4df.applypattern (pattern); System.out.println ("+

you also bring your own Android to feel ugly day control mulberry heart it? So, now. Date picker Look at this tall bar, first on the map:This date control is based on the well-known date control wheel Date wheel changes, the interface more beautiful

The first is to create a new MyMD5 class, inherit the NSObject, the following class method encapsulation, convenient for other classes to be called later.+ (NSString *) MD5: (nsstring*) str{NSLog (@ "MD5 method of Encryption");const char *CSTR =

In the Android login, in order to realize the user's convenience, often need to follow the user's needs to remember the password operation, so, in the Android data storage sharedpreferences exactly can achieve thisBelow, the small series will lead

1, why class caching is required:A: Because it takes a lot of time and space overhead to find classes and class member variables frequently, you can refer to the following

1. Phenomena When we call the camera on some apps that use an Android phone, we find that sometimes when we take a photo, the program will flash back, which can have a great impact on the user experience. Currently the project also has a

1, Fermode: is from Transfer-modes, after setting xfermode in the brush, the brush will apply the set pixel conversion mode when it is used. Similar to the selection function in PS, the left selection is removed from the original selection or merge,

One. Error message:2015-7-1 9:15:25 Org.apache.catalina.core.ApplicationContext LogInfo: No Spring webapplicationinitializer types detected on Classpath2015-7-1 9:15:25 Org.apache.catalina.core.StandardContext Listenerstart severity: Error

Android single-row gridview horizontal sliding implementationFirst rewrite the next GridViewHorizontalgridview.java Public class horizontalgridview extends GridView { Public Horizontalgridview(context context, AttributeSet attrs) {Super(context,

If the mainthread is unresponsive for a long time, the system will prompt "XXX unresponsive" and the user will be closed. So, how to locate the problem? No response is not like crash, it does not fetch the exception log, usually we need to debug in

raphaël GearRaphael target points moving continuously along the path

When doing iOS development, you will inevitably encounter the input box is covered by the keyboard problem. On the Internet to search a lot of related solutions, see a lot, but sincerely feel too troublesome.The solution is to add everything on the

Address of this article; http://blog.csdn.net/zhaoyabei/article/details/46697859Application statistics sometimes need to upload the device model, if this write:[[UIDevice currentDevice] model]The acquired device model is not a specific model, such

Each activity has its own life cycle, which is opened and eventually closed.Four ways to end the current activityJava code: Close the current Activity method one Finish (); Close the current interface method two

1. Copy the Eclipse Engineering configuration file to the Android source root directory2. Create a new file in the Android source root directory. Project, content is:XML version= "1.0" encoding= "UTF-8"?>projectdescription> name>Gingerbreadname>

Original URL: http://www.cnblogs.com/zh-ya-jing/p/4396918.htmlTo ensure that Android apps work correctly on all Android-compatible devices and maintain a similar user experience, Android provides a set of compatibility test cases at the time each

DES supports 8-bit encryption decryption, 3Des supports 24-bit, and AES supports 32-bit. 3Des is the DES algorithm to do three times. The number of bits is in bytes byte, not bits.3Des is divided 24 bits into 3 groups, the first set of eight bits

Data recovery software Experience-Support U - disk, phone SD card, hard disk data, solve the image after recovery cannot open the problem.Used a lot of data recovery software, the earliest easyrecovery Pro, restored the U disk, the phone SD card,

Problem:cvc-enumeration-valid:string value ' 3.0' isn't a valid enumeration value for Web-app-versiontype in Namespa Ce http://java.sun.com/xml/ns/javaee: message icon-error VALIDATION problems were FOUND problem: Cvc-enumeration-valid:string value '