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services. However, this does not reliably describe all Bluetooth profiles and services supported by the device, but hints on device types are useful.BluetoothprofileRepresents the interface for a Bluetooth profile. A Bluetooth profile is a wireless interface specification between Bluetooth-based devices. An example is Hands-free profile. For more discussion of configuration files, see Working with Profiles (links to crossing web)BluetoothheadsetBluetooth Headset support availableBluetootha2dpDe

============ Problem Description ============The first two months can also visit the Android developer site, now can not access, what is the method, in the future to think of the official latest Mac version of ADT is difficult.============ Solution 1============FQ AH ah ah ah ah.============ Solution 2============FQ Software, we all know!============ Solution 3============Now is not, can only FQ.===========

Open Eclipse (Android development environment) and find the following error:The picture display information is: Android SDK requires ADT (Android Developer Toolkit) version in 20.0.0 or later, detects that the current version is 18.0.0, please update the latest ADT.The root cause of this is that the E:\Program Files\

more efficient.Also has the UI interface design, own a development, actually does not understand the design, therefore some interface element, the color matching also can only imitate some other's application.The whole technical aspects of the development of things, they found that really is the operation of the industry has specialized, do technology generally have a bad problem is that other work, such as products, operations, design, no technical content. Now I finally have a deep understand

We know that after Android 4.x developer options are hidden by default, open method:set--about the phone--version number , a number of consecutive clicks (typically 4, 5 or more), return to see the developer options come out.So how do we hide this option?Most of the online tutorials are:Settings-apps-settings (Programs)-Erase dataAt this point, all the settings a

Sometimes the APK file installed directly under the Bin folder will have an error "a packet with the same name with a signature violation installed."The reason is that this apk is signed by the debug user by default. As long as we set our own signature is OK, the specific method is as follows.1. Tools for signing. Keytool.exe under the JDK installation pathThis is my D:\java\jdk1.7.0_09\binkeytool.exe.Drag directly to the console (you don't need to set the environment variable), space, and then

When launching an app using the Android automated Test tool Monkeyrunner, you need to fill in the package name and activity of the program under test, there are two ways to view the app package name and the entry activity name:method One: Using AAPT//aapt is a tool that comes with the SDK, in the Sdk\builds-tools\ directory1. Take the ES file browser as an example, switch to the Aapt.exe directory in the command line execution: AAPT dump badging E:\ap

The theme of the first phase of the android bus salon is: exploring opportunities for grassroots developers in the mobile Internet era. We invited Dong boying, founder of the alert clock, Wang Jun, CEO of testin, and Xu Yu, China Technical Director of Appcelerator, zhang Jian, founder of anyview. Our salon was intended to share with more mobile Internet entrepreneurs more success stories or experiences on the road to entrepreneurship. In fact, we did

The android developer of svn1.6 is also noted. A few days ago, I updated my development environment, downloaded the new version of Eclipse, updated SDK to 4.2, and updated ADT to 21. After loading the old eclipse_workspace with the new version of Eclipse, it is found that the project checkout from the SVN version library cannot be compiled, and the following error is reported: Errors occurred during the

For enterprises, a qualified Android developer may be Familiar with the android framework, read the android source code Familiar with andorid sdks, especially networks and threads StrongCodeControl A little understanding of ndk or C (better if proficient) Use git to manage code The requirements of develo

async) {mlooper = Looper; mqueue = looper.mqueue; mcallback = callback; masynchronous = async; }MessageSingle necklace table structure.Role: The carrier of the data 1. How is the message reused?From the global message pool (linked list structure)Obtain() { new Message ();} 2. Why can I send a message?Android wants to pass an object either implemented serializable or parcelable, where the Parcelable interface is implemented.Slightly3,

sqlitedatabase = dbopenhelper.getreadabledatabase (); switch (Matcher.match (URI)) {case Persons:return Sqlitedatabase.query ("person", projection, Selection,selectionargs, null, NULL, sortOrder); case Person:long rowID = Contenturis.parseid (URI); String where = "PersonID =" + rowid;if (selection! = NULL ! "). Equals (Selection.trim ())) {where + = selection;} return sqlitedatabase.query ("person", projection, Where,selectionargs, null, NULL, SortOrder);d Efault:throw New IllegalArgumentExcept

each device acts as a server so that it can have a server socket to listen for connections. When the other device initializes the connection, it becomes the client. In addition, when the device becomes "host", it will open a server socket and the other devices will simply connect.Note:if the devices has not been previously paired and then the Android framework would automatically show a pairing req Uest notification or dialog to the user during the c

error, there is no warning. However, regardless of the error or not, this is not safe, there is an ID conflict in the control of the hidden danger.　　There are no errors or warnings under Eclipse.Androidstudio the error.Rearrange the problem description: in Androidstudio, when adding a control dynamically with code, assigning an ID to a control by View.setid (int id) directly assigns a parameter of type int "error", and the correct use posture of View.setid () is described below.• Scenario One:

contentMenu.setheadertitle ("file operation");Menu.setheadericon (R.drawable.ic_launcher);Menu.add (1,1,1, "copy");Menu.add (1,2,1, "paste");Menu.add (1,3,1, "cut");Menu.add (1,4,1, "renaming");}@Overridepublic boolean oncontextitemselected (MenuItem item) {Switch (Item.getitemid ()) {Case 1:Toast.maketext (Mainactivity.this, "click Copy", Toast.length_short). Show ();BreakCase 2:Toast.maketext (Mainactivity.this, "Click to paste", Toast.length_short). Show ();BreakCase 3:Toast.maketext (Mainac

Specific steps can be viewed on the Android website.Http://source.android.com/source/initializing.htmlInstall Dpkg-dev Firstsudo apt-get Install Dpkg-devsudo apt-get install Git-core GnuPG Flex Bison gperf build-essential Zip curl zlib1g-dev gcc-multil IB G++-multilib libc6-dev-i386 lib32ncurses5-dev x11proto-core-dev libx11-dev lib32z-Dev CCache libgl1-mesa-dev libxml2-utils xsltproc Unzipsudo apt-get install openjdk-7-jdksudo update-alternativ

with a variety of popular social media platforms, where developers can integrate this component into their mobile apps, allowing users to easily share the content of their apps in the most popular social media platforms. Mobile Development Payment Platform Class solutions: for developers to provide payment platform API interface, to achieve the functions such as remittance transfer. Mobile Development Voice class solutions: for mobile developers to provide convenient speech recognition ser

Android developer _ backup SMSZookeeper Principles of text message backup The principle of text message backup is to use the content provider to read and save the text message. Public class SmsBackupUtils {// callback interface public interface SmsBackupCallback {/*** total number of messages called * @ param total text messages */public void beforeSmsbackup (int total) before SMS backup ); /*** call * @ p

Preface This chapter is the developer Guide/Developing/Tools/aapt, translated from "Mobile cloud _ 文bin", welcome to its blog: "http://blog.csdn.net/caowenbin ", thanks again for "Mobile cloud _ Wenbin "! We look forward to your participation in translation of Android related information, contact me over140@gmail.com. Body 　　UseAapt AaptIs StandardAndroidAuxiliary packaging tool, located inSDKOfTools/Folder

PrefaceThis chapter describes the developer Guide/Developing/Tools/ProGuard. This chapter describes the obfuscators and version Android3.0 r1 ", welcome to talk with him: "litaojun@gmail.com", thank you again "Jim "! We look forward to your participation in translation of Android related information, contact me over140@gmail.com. Original Http://developer.android.com/guide/developing/tools/proguard.html Ob