Mobile Develop

The difference between SRC and background in Android The difference between the XML attribute src and background in ImageView: The background is stretched according to the length and width given by the ImageView component, while SRC stores the size

#import Compression-(NSData *) Compressdata: (NSData *) uncompresseddata{if ([uncompresseddata length] = = 0) return uncompresseddata; Z_stream STRM; Strm.zalloc = Z_null; Strm.zfree = Z_null; Strm.opaque = Z_null; strm.total_out =

This will invoke the database connection singleton, file cache class, and development app interface of the previous blog (i)cachedata (' Index_cron_cahce '), if ($data) {return response::show (200, ' Home data acquisition Success ', $data);}

Today, I have a strange problem, TextField don't know when to disappear? Actually turned white, set the background color of the TextField can be seen, as to why this has not found the reasonOnly cursor color can be set1, [TextField setvalue:[uicolor

Sometimes we may need to determine whether an object has this property, then we can use this method #pragma mark-Dynamically determines whether a class contains a property + (BOOL) Getvariablewithclass: (Class) MyClass varName: (NSString *) name{

Android program is mainly written by Java code, we all know that Java in memory recycling has its own system, do not need coder to do memory destruction, but in the programming time there is a memory leak occurs, this is generally because of what? >

$tel= ' Contact number to verify '; $isMob= "/^1[3-5,8]{1}[0-9]{9}$/"; $isTel= "/^ ([0-9]{3,4}-)?" [0-9] {7,8}$/"; if (! Preg_match ($isMob,$tel) &&! Preg_match ($isTel,$telexit(" ");PHP Contact Phone Verification (mobile and landline)

Generally to do a positive round picture, can only be achieved on the basis of the square, otherwise it becomes an ellipse, the following said how to make a picture of the rectangle is a circle pictureDon't say much nonsense, no picture no truth,

Refer to:communicating and other app communication between apps [Translate]>In iOS, the implementation opens APP2 in App1, as follows:1,register a URL in APP2 schemesThe method of registering is very simple, add a URL types array element in the

On the internet feel a man write code XE6 under the directory, but get XE7 can not use, because Tjavaobjectarray become generic, get a half-day did not understand tjavaobjectarray how to use, always wrong, But after studying the source code under

Rounded rectangle picture is very popular in Apple products, compared to ordinary rectangles, a lot of people like the rounded rectangle picture, because it avoids the blunt right angle, brings a better user experience, here are a few examples of

32-bit encryptionpublic static string GetMD5 (String strsrc) {StringBuffer buf = null;try {messagedigest MD = messagedigest.getinstance ("MD5 "); Md.update (Strsrc.getbytes ()); byte b[] = Md.digest (); int i; BUF = new StringBuffer (""); for (int

You rewrite the activity of several life cycle methods, run to know what is going on, really lazy people can see: Click to open the link.OnCreate: Executes when the activity is created and executes only once.OnStart: Executes when the interface is

1, verify whether it is a Chinese characterCode//Verify nicknamePrivate BooleanVerifynickname () {String nickname = Edt_username.gettext (). toString ();if(Nickname = =NULL|| Nickname.length () = = 0) {edt_username.seterror ("cannot be

XML version= "1.0" encoding= "Utf-8"?>LinearLayoutxmlns:android= "Http://schemas.android.com/apk/res/android"Android:layout_width= "Match_parent"Android:layout_height= "Match_parent"android:orientation= "vertical"> includeLayout=

In the Res/values/styles folder, define the following:1 stylename= "MyTheme">2 Itemname= "Android:windownotitle">TrueItem>3 Itemname= "Android:windowfullscreen">TrueItem>4 Itemname=

Android phones about camera use, one is to take pictures, two is video, because Android provides a powerful component features, for this purpose on the Android phone system for camera development, We can use two kinds of methods: one is to call the

http://blog.csdn.net/lilu_leo/article/details/11952717Sometimes you need to set layoutparams in the code, you set the Layoutparams for a framelayout, encounter title problems,Java.lang.ClassCastException:android.widget.FrameLayout$LayoutParams

In IOS8, Apple has forced the developer to get the user's authorization when requesting location services, and there is an indication icon in the iOS status bar that prompts the user whether the location service is being used by the current app. In

1NSString *BaseUrl;2Nsurl *url =[Nsurl Urlwithstring:[baseurl stringbyaddingpercentescapesusingencoding:nsutf8stringencoding];3Nsurlrequest *request = [Nsurlrequest requestwithurl:url cachepolicy:nsurlrequestuseprotocolcachepolicy