android developer certification

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

Public Static classFragmentaextendsListfragment {Private Onarticleselectedlistener Mlistener; ... //Container Activity must implement this interface Public InterfaceOnarticleselectedlistener { Public voidonarticleselected (Uri Articleuri); } ... @Override Public voidOnattach (activity activity) {Super. Onattach (activity); Try{Mlistener=(Onarticleselectedlistener) activity; } Catch(classcastexception e) {Throw NewClassCastException (activity.tostring () + "must implement Onarticleselecte

further explain why, the admission company should be accommodating.18. Have you ever thought of starting a business?Answer tip: This question can show you the momentum, but if your answer is "yes", be careful, the next question may be: So why don't you do it?19, how to look at education and ability?Answer tip: Education I think as long as the college diploma, it shows that I have a fundamental learning ability. The rest, whether you are a bachelor or a doctor, for this discussion is not about h

July 5, 2014, 6th, AVOs Cloud Joint Move point Technology, seven Qiniu storage, Ucloud, push Network, Segmentfault, EOE Developer community, offer, csdn and Geek College come to Mordor, A two-day hacking marathon was held for developers. This event is an exclusive collaborative media with Dynamic point technology, which features a special report on developers ' ideas and products. Love encryption as the guardian of mobile application security, was inv

1: Open Adt-bundle-windows-x86\eclipse folder, create new Folder Subclipse (Note: adt-bundle-windows-x86 for my Eclipse directory name)2: Open Eclipse's svn plugin zip file (site-1.8.4.zip)3: Extract the features and plugins folders from the Open Site-1.8.4.zip package to the Adt-bundle-windows-x86\eclipse\subclipse folder4: Open the Adt-bundle-windows-x86\eclipse\dropins folder and create a new text file Svn.lnk The contents of this file are: Path=subclipse5: Open the Adt-bundle-windows-x86\ecl

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 services, so that there is text input in place with voice input instead. Save time and effo

Android animation icon -- I am not a gif maker, I am a developer, androiddeveloper We first found a cool animated icon on git: Https://github.com/xuyisheng/tickplusdrawable I have to say that foreign programmers are indeed much better than us in terms of details. OK. Today we will imitate this: Now let's take a look at our results. Don't spray me, just write it for an hour. A lot of details have not been f

Uri uri = Data.getdata (); String[] proj = {MediaStore.Images.Media.DATA}; Cursor actualimagecursor = Managedquery (uri,proj,null,null,null); int actual_image_column_index = Actualimagecursor.getcolumnindexorthrow (MediaStore.Images.Media.DATA); Actualimagecursor.movetofirst (); String Img_path = actualimagecursor.getstring (Actual_image_column_index); File File = new file (Img_path);The following is the solution after 4.2.2, after the Managedquery method is discarded:Public StringGetrealpathfro

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

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

for Both Permissions ModelsIn Android6.0, the installation is replaced by requesting permissions at run time. For this reason, you have to test your application in a wider range of conditions. Before Android6.0 we had good reason to believe that our program was running and that we had sufficient permissions because these permissions were already declared in the manifest file. In the new permission model, this is not possible.In cases greater than or equal to API23, you need to determine your pe

1.Package test;Interface Dongwu {void Eat ();}2.Package test;public class Gou implements dongwu{public void Eat () {TODO auto-generated Method StubSystem.out.println ("I am a Puppy");}}3.Package test;public class Mao implements dongwu{@Overridepublic void Eat () {TODO auto-generated Method StubSystem.out.println ("I Am a kitten");}}4.Package test;public class Adongwu implements dongwu{Private Dongwu Dongwu;Public Adongwu (Dongwu Dongwu) {TODO auto-generated Constructor stubThis.dongwu = Dongwu;}

1: Open the Adt-bundle-windows-x86\eclipse directory. Newly created directory Subclipse (note: adt-bundle-windows-x86 is my eclipse directory name)2: Open Eclipse's svn plugin zip file (site-1.8.4.zip)3: Extract the features and plugins directories from the Open Site-1.8.4.zip package to the Adt-bundle-windows-x86\eclipse\subclipse directory4: Open Adt-bundle-windows-x86\eclipse\dropins directory, create a new text file Svn.lnk The contents of this file are: Path=subclipse5: Open the Adt-bundle-