Mobile Develop

on view The event distribution mechanism of the view has been very faint, and today it is here to comb MyViewFirst inherit the view class and customize a myview. And when initializing the view class can be clicked, here from the view

Three methods are achieved through the touch of the Touchesbegin monitor screenFirst, Performselector Way1 #import "ViewController.h"2 @interfaceViewcontroller ()3@property (Weak, nonatomic) Iboutlet Uiimageview *ImageView;4 @end5

Often see a similarNSString *file = [[NSBundle mainbundle] Pathforresource:name Oftype:nil];This code is used to get the full path of file.Then what is it: First look at the NSBundle class, directly inherit the NSObject class.The object of this

-(BOOL) Application: (UIApplication *) application didfinishlaunchingwithoptions: (nsdictionary *) launchOptions{Override point for customization after application launch.Self.window = [[UIWindow alloc] initwithframe:[[uiscreen mainscreen]

1. Drag the gpuimage.xcodeproj to your Xcode project2. Add Gpuimage.a as Target Dependency in the app's target dependency settings3. In the build phase link Binary with Libraries, add the Libgpuimage.a in.4. Add the following system

1. Compression qualityUiimagejpegrepresent2. Compression resolution-(UIImage *) Scaletosize: (UIImage *) img Size: (cgsize) size{Create a bitmap contextand set it to the context that is currently being usedUigraphicsbeginimagecontext (size);Draw a

Add struct, use Nsvlue class typedefstruct{Nsuintegerline;Nsuintegerrow;} tilelocation;Convert to NsvalueNsvalue*value = [Nsvaluevaluewithbytes:&tilelocobjctype: @encode (tilelocation)];Convert back to structTilelocation

Activity Life cycle Methods:Activity is one of the core components of Android system, which is mainly used to deal with interface related business and to respond to user's related operation on interface. The related time-consuming operations

Basic steps for customizing properties in AndroidThis time it's just the simplest custom attribute flow.1. Create a resource file: Resources/attr.xmlresources> declare-styleable name="Test"> attr name="Test" format="string" /> attr

Android Studio has gradually replaced eclipse as the mainstream IDE for Android, and now records the experience of using Android Studio.Installation encountered problems: The installation is simple, download it directly down run install on

在做项目的时候，难免需要将一些数据存储在手机中，之前用sqlite和sharepreference，但是使用起来不是很方便。最近用到了一些缓存的类，非常方便，特此记录下来。AsimplecacheProject Address: Https://github.com/yangfuhai/ASimpleCacheAsimplecache is a lightweight, open-source caching framework developed for Android.

Android Custom ToastThe first is the custom duration:Say so, but Android comes with two time length_short (2 seconds) and Length_long (3.5 seconds) basic enough, and generally did not specifically to set a few 10 seconds of toast, so, it is better

This guidance document is intended to describe how to install the Android development environmentOne, what can we learn1, install the tools needed to develop Android app, 2, need to create Android debug simulator AVDIi. what needs to be prepared1, 15

This section is mainly modeled after the ring-letter demo to create the demo interface. We can see the entire interface UITabBarController frame of the ring letter as the host controller, which contains the session ConversationListController

1. Save () method:To save the state of the canvas, the code after the Save () method can call the canvas's panning, indenting, rotating, cropping, and so on!2. Restore () Method:Used to restore the state that was saved before the canvas (which can

1, TextView the content is too long to omit and scrollAndroid:singleline= "true",//single lineAndroid:ellipsize= "",//Start middle end omitted positionAndroid:marqueerepeatlimit= ""//Marquee marquee Marquee_forever keep rolling2, call the system

The class for the network request (the picture from: developer.apple.com)One, URL requestThe components of a network request are the server address, the request parameters, and the request method. In iOS, a network request is represented by

Androidstudio shortcut Keys DaquanALT + ENTER import package, auto fixCTRL + N Find classCtrl+shift+n Finding filesCtrl+alt+l Formatting CodeCtrl+alt+o Optimizing imported classes and PackagesAlt+insert generate code (such as Get,set method,

Mobile Security defender 41, mobile phone anti-theft process introduction two, lostfindactivity mobile phone anti-theft class design and implementation Whether to enter Is_first_use for the first time Mobile phone anti-theft function

In android, data passed between processes includes the basic data types supported by the Java language and user-defined data types, so that all data must be "packaged" in order for the data to traverse process Boundaries. For the basic data type of