simple compass app for android

Android currently has about 75% of the world's market share, with Android handsets holding even more than 90%. Therefore, a computer to hear the development of mobile phone applications, one like the devil, since there are so many people interested in it, then we also play a game. However, this module is not about how to use Java development, but all in C # to achieve. Why use C # to achieve? The reason is

Android activity jump animation makes your APP instantly beautiful, androidactivityapp We all know that beautiful apps will always give users a fresh feeling. In order to seize the user's larger network companies to make their products more beautiful, the most simple effect is the Activity jump effect, it not only makes the user look comfortable, but it is also v

we want to use is a very simple geometry, and the vector image occupies a very small amount of storage space.There is also a practical icon making tool website for Android Asset Studio. You can choose to make the app icon or the System icon, and after adjusting the parameters, you can download the icon to use locally.This article is part of a series of documents

Android app-do not store data in the Application class, androidapplicationRecently, a serious problem was found during development. When we press the home Key of the application to run it in the background, after a while, when we open the application again, in, an NullPointException NULL pointer exception occurs. According to the logcat log, a global variable is located. Why? It turns out that we put a lot

Research on the implementation scheme of the source App after a friend clicks the shared content on the Android platform Most of the time, after using the shared content, we hope that other users can click the shared content to jump to our App to achieve a closed loop. Such sharing is the most valuable. This requirement involves the interaction between different

Pea pod, app Bao, Android Market, etc.), So the question is, if we want to count the number of downloads we've developed, we have to use statistics, and not only can we count the number of downloads and launches of our app, we can also count the amount of pages visited, the bugs in the program, and so on, because there's a continuous iteration and user experienc

First, the preface Before reading this article, you need to understand a few things first: 1. What is the cold start time for Android? Cold start time is the time between when the user clicks the app from the desktop of the mobile phone and the Activity calling method of the startup page onCreate() . 2. What happened during the cold start time period? First we need to know what happens when you open on

The previous section has implemented a simple app widget. Here we will continue to learn more about app widgets through an instance. First, continue to understand the main classes of the app widget framework: Appwidgetprovider: inherits from broadcastreceiver and receives notifications when Update, enable, disable, and

How does Cordova for android handle the exit button event in the App? cordovaandroid The project needs to add the processing of the Return key to the HTML5 Android App. It is found that adding the return key directly to the Activity does not work. After analyzing the cordova source code, it is found that the return key

Android development-simple login interface and Android login interface Use the Use the The Code is as follows: Xml code: Android: layout_width = "match_parent"Android: layout_height = "match_parent"Android: orientation = "vertic

Android App design Support library full use instanceAndroid 2015-06-04 15:30:41 released Your rating: 0.0 Collection9 Collection1 backgroundLast week's annual Google IO Global Developers conference just ended, Google in the Android this piece apart from some optimizations are not too big highlights. On

/com.mycompany.myfirstapp/myactivity.java Jave core code, including the actual activity class and its class functions. When the app runs, the activity class runs and calls the preceding layout file to display.4. Configuration of the basic features of the App/src/main/androidmanifest.xml app and what components are included (activity)5.

I have studied the implementation of drag-and-drop ListView for a long time and have benefited a lot.In view of the fact that the content on the Internet is small and simple, and the specific implementation process may be helpful to everyone, in order to be detailed without distortion, we will analyze it step by step and divide it into two articles. I. preparation. 1. RequirementsPreliminary: implement the drag-and-drop effect of the List (For details

of OPENJDK-7-JDK, which can be $sudo apt-get install OPENJDK-7-JDK to resolve, however, after being tested, the installation OpenJDK starts Android Studio, it will appear, when using the boot tool to create a new project, the bottom line, there is next finish Previous button does not display properly, At the same time, Android Studio will also launch the interface will also report some warnings, such as th

the building of Java environment, teach you to download jdk, download Androidstudio, and familiar with the use of Androidstudio, if you want to use eclipe development, you can add QQ group, private chat me. ②, import Open source framework, problems encountered during the import process, there are gradle version issues,SDK path issues, and the different phone model differences will cause the compilation apk is unsuccessful. ③, teach you to use basic Android