Use of masks in Android

A mask is a string of binary code that makes a bitwise AND operation of the target field, shielding the current input bit, and is sometimes referred to as a shield code.This technique is often used in Android to set flag to determine the tag, which

"Android" Learning Diary first Knowledge activity

I. Introduction to the activity:Activity is the most basic and most commonly used component of Android components, in an Android application, each activity is usually a page, and each activity is implemented as a separate class that can be

Android bluetooth various uuid (turn)

Servicediscoveryserverserviceclassid_uuid = ' {00001000-0000-1000-8000-00805F9B34FB} 'Browsegroupdescriptorserviceclassid_uuid = ' {00001001-0000-1000-8000-00805F9B34FB} 'Publicbrowsegroupserviceclass_uuid = ' {00001002-0000-1000-8000-00805F9B34FB} '

Make an iOS Ad-hoc test app

This article is to ensure that the completion of the iOS real-computer test certificate A series of import processes under the premise of the operation, if not done, please find the relevant information on the network, here no longer repeat.1. Add

Android about asynchronous HTTP requests, and encoding issues

We all know that you can use a class that inherits the Asynctask to implement asynchronous operations, and then an HTTP request class can be solved, now I say the details of the problem, such as a long time no response, coding problems, as well as

Various animations for IOS

Most common animations:Start animation[UIView Beginanimations:nil Context:nil];Set Animation duration[UIView Setanimationduration:2];The content of the animationFrame.origin.x + = 150;[img Setframe:frame];End of animation[UIView

iOS: specifying corner fillets for rectangles

Quite simply, with the mask, the code is as follows:Uibezierpath *maskpath= [Uibezierpath bezierPathWithRoundedRect:viewRadius.bounds byroundingcorners: Uirectcornerbottomleft| Uirectcornerbottomright Cornerradii:cgsizemake (55)];

Android Development Chart Achartengine bar chart

1. Download Achartengine Library http://code.google.com/p/achartengine/downloads/list 2.graphicalview   Graphicalview;graphicalview=chartfactory.getbarchartview (Getbasecontext (), dataset, renderer,  type);//Histogram

Android numerous layout properties in detail

Android Powerful, the interface is gorgeous, but a lot of layout properties on the pain of the developer, the following this article combined with a lot of information on the Internet, spend my afternoon out of the hope for other people useful.

Android's official navigation bar Toolbar (Toolbar+drawerlayout+viewpager+pagerslidingtabstrip)

Through the previous articles, we have a certain understanding of the navigation bar of Android, this article will be comprehensive application of toolbar, mainly combined with drawerlayout, Viewpager, Pagerslidingtabstrip

Switch between iOS boot interface and main interface

The first part of the preview partThe development tool used by the author is Apple's Xcode6.0.1, the simulator is iOS8.0. Doing this part of the work requires familiarity with the two UI controls: one is Uiscrollview and the other is Uipagecontrol.

Android Studio shortcut set to eclipse habits

The year before last friends are using Android Studio, but I am still a big eclipse fans, ah haha, but now Android Studio update to 1.3 version, everyone in use, I can not lag behind, riding, behind.Download in the Android website is really good,

Scenario application: The era of mobile interconnection, the news industry is not to be outdone

Xinhua News Agency, Beijing, June 8, Xinhua News agency, a flagship product of China Mobile Internet service, the new 8 - Day official release, this is the Xinhua news Agency as the national news Agency to accelerate the development of media

Ios-pprevealviewcontroller Sidebar

> DefinitionPPRevealViewControllerPPRevealSideViewControllerDelegate@property (strongnonatomic) PPRevealSideViewController *revealSideViewController;> Initializationhomeviewcontroller* con = [[Homeviewcontroller

Unity Export Android Studio Engineering method

Generate Androidstudio Project:(0) Establish a new project; Import a unity-generated project to build another export project.(1) Copy the Unity-classes.jar file under Export project Libs to the Libs folder of the new project. Then, right click on

Android Art Introduction

1, art is faster than Dalvik, is because art is performing local machine instructions. , and Dalvik executes the Dex bytecode, which is performed through the interpreter. Although Dalvik also JIT-generates local machine instructions for frequently

How to make "mobile & PC-controlled arduino-3d print robot"–iobot? "

 If you're looking for ways to control your Arduino device, this tutorial will show you how to build a simple robot.Iobot is controlled by mobile & PC applications via LAN or USB. The app runs under Android,mac OS and Windows operating system and

Android gets the picture in the resource file r.drawable converted to drawable, bitmap

1, Resources and resources=mcontext.getresources ();D rawable drawable=resources.getdrawable (R.DRAWABLE.A); Imageview.setbackground (drawable);2, Resources R= This. GetContext (). Getresources (); InputStream is=R.openrawresource

Android-radiobutton&radiogroup

Android-radiobutton&radiogroupa definitionConforms to the radio box, two need to use togetherTwo event mechanismprivate void Showradiobutton (){Mradiogroup = (radiogroup) Findviewbyid (r.id.radiogroup1);Mradiogroup.setoncheckedchangelistener (New

Android Basic Learning Menu Optionmenu

1. Options menu (Optionmenu)To create the Options menu:1. The Oncreateoptionmenu (Menu menu) method that covers the activity, called when the menu is opened for the first time2. Call the Add () method of the menu item (MenuItem), and you can call

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