messenger application for android

speed up the power consumption. These development concepts directly affect the user's final experience, so let's talk about how to optimize the development of the user experience orientation in Android. Although it is not necessary to have a thorough understanding of the underlying system, you need to have a basic understanding. Android system layered Clear, the bottom is the Linux Kernel 2.6, on top of t

3 activity design framework 3.1 activity outside the feature space Let's take a look at the activity in the external feature space that Android app developers are exposed to. For AMS, this activity is a customer service activity. When creating an Android Application, the app programmer builds the sub-class of the activity to display the feature space outside and

Original address: http://developer.android.com/design/wear/structure.htmlThe user is accustomed to clicking on the icon to launch the app, but Android Wear is not the same. A typical wear application inserts a card into the stream at the right moment in a situation. This card may contain a button for quick interaction to open a full screen view (in some cases, the card may not provide interactive buttons):T

. Some of your own words:This is my first blog, a long time ago to write, but a little afraid, this thing takes time and energy. And then their own this side of the way, the basic is self-study, a lot of things just start completely do not understand, some mistakes, online can not find a solution, ask questions, not get timely reply, also not necessarily to be resolved.Sometimes really forced into the desperate situation, I am very hard, a lot of things have been deleted, a step by step start, t

How simple is it? Look, it just shows the map:If you want to write an android Google map application, it is more difficult to prepare it than to write other applications. Because: The android Google map API is not open-source and free. It is Google's private software, although it is free; This API is always dependent on downloading map information from Google.

One, Android One application launched another application when there are 2 methods.The first is to know the specific action,category of the app being invoked (typically the first two values are the default, that is, the following method), the package name and the class namepublic void Start (View v) { Intent intent2 = new Intent ("Android.intent.action.MAIN

Article reprinted to CSDN community Luo Shenyang's Android tour, original address: http://blog.csdn.net/luoshengyang/article/details/8170307We studied in the front.SurfaceflingerThe implementation principle of the service. With this foundation, from the beginning of this article, we can analyzeandroid system in java ui achieved. We know that in android The four components of the

There is a red cross in the project, I don't know what is missing, but there is no error in the bag, runProgramThe error message is: Your project contains error (s), please fix them before running your application. I tried clean; I also tried the delete project and re-imported it, but it was useless. Find the solution by chance: Linux: window -- preferences -- Android -- default debug keystore in build d

Application packaging and signature obfuscation process for android development: android ProcessAfter the project is almost done, it needs to be signed, and then obfuscation prevention is decompiled. By default, all the environments of the process are configured.The main steps are as follows: 1. Generate the configuration file required for ant packaging. 2. Gener

Problems encountered during Android Development -- WARNING: Application does not specify an API level requirement in Android! Solution, requirement During the trial run of the Andorid project on the mobile phone, we found that the Console printed"WARNING: Application does not specify an API level requirement! "Such war

Android development tutorial-Android Application Structure Analysis 1. Create a HelloWorld project: 1. Open Eclipse and click "File"-> "New"-> "Project"-Android Application Project "": In the pop-up "New Android

Android development dialog box advanced application, android development dialog box Android development dialog box advanced application It is easy to create and display a dialog box, but if you want to perform more advanced operations, you need some skills. The following ar

Figure 21, m9w1b00aka1ko02582 is the S/N of the mobile phone, and emulator-5554 is the started simulator. ADB finds two Android devices. Finally, there is another important task to do. You must enable "USB debugging" in the mobile phone settings. Take M9 as an example. The configuration location is "Settings-> USB and development mode ", other mobile phones may be slightly different in brand and model, as shown in Figure 22. Figure 22: Enable US

Build a development environment, create a simulator, and finally complete a simple Android app and introduce the project directory. 1 equipped with Android development environment 1.1 installing Eclipse and ADT Download the Android SDK. The full name of the SDK is the Software Development Kit (software Development Kit), which provides some API libraries to develo

The first time the Android Application is opened, the implementation of the guiding interface, and the android Interface Reprinted please indicate the source, thank you http://blog.csdn.net/harryweasley/article/details/42079167 First, let's talk about the following ideas: 1. Use Preference to store data to record whether the software was opened for the first tim