Android Handler Looper thread

Calls in the thread containing the creation of the handler method, will be an error, prompt:"Need call Looper.prepare ()"--before creating, invoke the Looper.prepare () method to create a LooperHowever, the method that contains the create handler

iOS design mode-Mediator mode

What is the intermediary mode?Object-oriented design encourages the dispersion of behaviors into different objects, which can lead to the correlation between objects. In the worst case, all objects understand each other and manipulate each

Objective-c "E-commerce App project-system analysis-detailed comments-code implementation"

———————————————————————————————————————————E-commerce app appgoods.h*****************************************************#import Definition of structural bodytypedef struct{int year;int month;int day;int hour;int minute;int

Android performance Patterns s01e03-why 60fps?

In the field of app performance, 60fps and 16ms (milliseconds) are frequently mentioned concepts. But why are the numbers 60 and 16?These technical details are hardware-related--related to the human eye.Unlike cameras, the human eye does not send

IOS Add Empty Application template

There are no empty application templates in Apple's newest xcode6.x, but you can add templates to Xcode, and you can customize the templates.You can first copy the Empty application template to xcode5.x, positioning the location as

Android Self-study note the Spinner drop-down box features, use

Spinner:is a control similar to a drop-down list from which the user chooses the appropriate option!The data in the spinner needs to be populated with a adapter (adapter).Use:layout file Activity_main.xml: class file Mainactivity.java:package

Android Performance Patterns s01e02-understanding Overdraw

Overdraw: Over-drawing is a term used to describe a component that is drawn more than once on a pixel on the screen.For example, if we have a stacked UI card, the user-visible top cards cover Most of the underlying cards. This also means that a lot

Android Send mail

Some of the key logs in the project need to be taken from the customer, in order to facilitate the collection of logs in the client to join the mail send function (although the use of sharing features can also send mail, the premise needs to login

quick_cocos2d_x V3.3 protobuf Android

After iOS integrates protobuf, the call pro.android/build_native.sh generates Android project will appearjni/. /.. /classes/appdelegate.cpp:125:error:undefined reference to ' Luaopen_protobuf_c 'clang++: Error:linker command failed with exit code 1 (

UIView layoutsubviews and DrawRect in iOS

UIView's Setneedsdisplay and Setneedslayout methods. The first two methods are executed asynchronously . Setneedsdisplay will call the automatic call DrawRect method, so that you can get uigraphicsgetcurrentcontext, you can draw. Setneedslayout, by

(Android Studio) Add a text box

Most of this article was excerpted from http://hukai.me/android-training-course-in-chinese/basics/firstapp/building-ui.htmlAndroid:idThis is the unique identifier that defines the view. You can refer to an object by that identifier in your program

App Store downloads the solution to Mac app failure

1. Replace the DNS serverDomestic can use Alidns:223.5.5.5223.6.6.6can also be used in telecommunications:114.114.114.114The foreign can consider Google8.8.8.88.8.4.42. Clear the App Store cacheIn Terminal input:Defaults write Com.apple.appstore

Application of using Bootchart on Android in power-on measurement

Bootchart is a system designed to show a graphical display of the activity of a system during boot. 。。。 Omit the official profile, here is the relevant connection: http://www.elinux.org/Using_Bootchart_on_Android; http://www.bootchart.org/; 1.

Android Studio Series Tutorial Three--shortcut keys

Android Studio 1.0 Official releaseToday is a big day, Android Studio 1.0 finally released the official version, which for Android developers is simply the big news ah, so decisive to download use.Official:

Android Adjustment version Issue chronicle

Android 19 version of the simulator, with the appcompat-v7-22.2.0 version of the library will be errorThe control resource could not be found. Fixed running the program with version 19 simulator. In Android StudioThe app is replaced with the 19

(Android Studio) add buttons and weight issues

Most of this article was excerpted from http://hukai.me/android-training-course-in-chinese/basics/firstapp/building-ui.htmlNotice that the line of code where the cursor is located is commented out. The effect appears as shown on the right.Uncomment,

iOS timestamp converted to time

Time stamp converted into time1nsdateformatter* formatter =[[NSDateFormatter alloc] init];2Formatter.timezone = [Nstimezone timezonewithname:@"Shanghai"];3 [Formatter setdatestyle:nsdateformattermediumstyle];4 [Formatter

Use of MyBatis II (use of Mapper interface)

First, in the previous article, there are some problems: 1. No interface programming is used, and Java is an interface-oriented programming language. You should define some interfaces for database operations and invoke the DAO interface to complete

Syntax parsing for Android. mk Files

Below is the MTK-ANDROIDFM module Android. MK Code content:1Ifeq ($ (mtk_fm_support), yes)2Local_path:= $ (call My-dir)3Include $ (clear_vars)4Local_module_tags: = Optional5Local_certificate: = Media6Local_src_files: = $ (call All-java-files-under,

Android UI Design--gallery Controls

? GalleryThe function of the end of gallery is to slide the contents of the Flash. For example, Sometimes when we download an app, we look at his features and interface in the marketplace, and the content we view is displayed by means of a sliding

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