developing android apps android fundamentals

Now everyone wants to be an Android/iOS Application Development Engineer. In fact, Android/iOS applications can be implemented in many languages. Our front-end development engineers are familiar with network programming of HTML5, CSS, and JavaScript. Therefore, today we will recognize some tools that use front-end languages to develop Android/iOS applications. At

Action Bar is one of the most important design elements you can implement for your app's activity. It provides centralized UI features and enables your app to become familiar to users quickly by providing a consistent experience with other Android apps. The main features include: A dedicated display where the app is represented, and can indicate where the user is currently in the app. Users hav

userdata. IMG. Therefore, with the android SDK, we can run Android on the simulator.Android source code can compile Android SDK, ADB, and other tools, Android file systems, and ADT plug-ins. That is to say, we can compile all Android-related things from

Original address: http://blog.csdn.net/duancanmeng/article/details/7458851The first step: Add the following two code to the Androidmanifest.xml: Package= "COM.PCCW"Android:versioncode= "1"Android:versionname= "1.0" > Android:label= "@string/app_name" > Android:targetpackage= "COM.PCCW" android:label= "AAA"/>1. 2. 3. Targetpackage is the same as the package above, which represents the unit test framework and the current application is in the same processStep Two: Write the business logic, the mod

What do I need to know about developing android?One of the most popular words in the IT world is that Android is easy to develop. Have had the development experience person said simple, did not develop the person also is said simple, although said to learn the Android development is easier to get started, but in fact e

Framework, but you can try it for a full 30 days or use a free version. But free version limit the IL code size after the opening is not over K, and cannot be developed using Visual Studio (only Xamarin studio provided by Xamarin).After you've installed Xamarin, you'll need to register a Xamarin account to activate it. Open Visual Studio, click Tools-Xamarin Account If you have previously registered a Xamarin account (please note that the Xamarin account is different from the Email

programming language created by JetBrains (https://www.jetbrains.com/), and IntelliJ is also a JetBrains team, while Android Studio is also based on IntelliJ. It is an object-oriented programming language that includes many functional programming ideas.Kotlin was born to make up for the flaws in Java. It greatly simplifies the code, allowing us to save writing a lot of boilerplate code work.Why use Kotlin?First of all, I affirm that I have not been u

Sometimes if you want our application to create multiple shortcuts on the desktop, we can declare the corresponding activity in the Manifest.xml file. Code such as, this is seen from the Pulltorefresh demo, because our general application installation is completed, will only generate a shortcut, but this application generated four, see manifest.xml only found this thing, record ①, may be useful. Friends who want to help develop Android

Now a lot of apps are opened as a viewpager, then you can slide with your fingers, each slide once to change a picture, there will be a circle at the bottom to say that now slide to Chapter ~ Usually these pictures are to put the function of the introduction or use of teaching and so on, my demand is very simple, is mentioned above. There are two ways, one is to find an existing suite, look up a bunch of data each and I recommend viewpagerindicator

Android: Let's talk about the Toast plot (BASICS) and androidtoast in Android apps. Preface Toast, a pretty girl who has been fascinated by thousands of software developers, especially android Developers, has always appeared frequently in various star applications. Toast is a magic horse ~ I heard it's a kind of toast.

automated tests that RTW introduces for Android? As we all know, mobile apps have been widely used in our work life, movie tickets, air tickets, taxis, bank transfers, shopping can be solved by App, while everyone uses a variety of mobile terminals, and the Android OS version is numerous (Android 2.2 to the latest 4.2

Android Launcher: get the list of apps installed on your mobile phone. Android launcher The most important of Launcher is to obtain the entries and icons of all application lists. Generally, there are two methods to obtain them: PackageInfo ResolveInfo Run and obtain the Launcher of all apps and allow click events to g

://developer.android.com/guide/topics/fundamentals/tasks-and-back-stack.html) If you press the return key continuously, the activity is drawn away, just like peeling an onion. In an Android application, you can start an activity in another application (Task) with an activity in the current application (Task) through the intent feature. For example, the following figure, in the "Youdao Dictionary" main in

resultsFirst of all, do a general introduction to this application:This is the introduction of the application in GooglePlayStart interface:Application Main interface:Back Word interfaceThe interface after the wrong back of the word:Check the word interface:Setup interface:File Browsing InterfaceReference Address Https://market.android.com/details?id=com.carlos.yueciWell, that's the application overview. This section of the introduction to apps is he

A very simple Android simulator software Bluestacks app player that allows you to easily run all of the Android apps in the Google Play Store (view reports) on the PC side. But perhaps a lot of people generally feel that installing an Android simulator is a chore, and today's small series can help you install the

8u Eliminate SDK update when the " Https://dl-ssl.google.com refused "Exception : When updating, the domestic cannot connect the Google server, can use the proxy, freegate on the lineThe workaround is to modify the https://to http://The modification method is: for example, in the Android SDK manager->tools-options ... Options interface,Check "Force https://... sources to be fetched using http://..."!If you have any errors, you can add the following l

development environment for Java development) and the Java Development Kit (JDK) basic approach. This also helps to understand the basic methods of Java development, such as looping statements and if statements.But after I've made these basics, I strongly recommend that you abandon the YouTube video tutorial and turn to the arms of books and lecture series. YouTube tutorials tend not to focus on some very important concepts that I think are of 100% importance to programmers who want to develop

The android SDK contains a tool named zipalign that can be used to optimize the APK package. We know that APK is actually a zip compressed file. zipalign can make your application run faster. The principle is to increase the system resolution speed by formatting the sequence of binary files in the ZIP folder. Just like formatting the code before reading it, it makes it easier for us to understand its meaning. On the

A few days ago in g+ see Google developers site, there is an Android series of articles, share to personal Weibo, weekend idle to learn to write the next, the simple translation of the next, did not expect a out of hand, six articles are all translated, Some places omit the description of some examples or change another expression, and if there is an inaccurate understanding of the place, still look. Original:

); Outstream.write (Content.getbytes ()); Outstream.close ();}readable mode:1. Files created can be read by other applications2, context.mode_world_readable;public void savereadable (string filename, string content) throws Exception {FileOutputStream OutStream = Context.openfile Output (filename,context.mode_world_readable); Outstream.write (Content.getbytes ()); Outstream.close ();}Writable mode:1. Files created can be written by other applications2, Context.mode_world_readablepublic void savew