android application development for dummies

Introduction and basic usage of AsyncTaskFor details about the introduction and basic usage of AsyncTask, refer to the official document and Android Development Notes: multi-threaded AsyncTask. A problem caused by AsyncTaskLast week, I encountered an extremely strange problem. A small function downloads an image from the network and puts it in the ImageView. It is implemented using AsyncTask, and its logic

Reprint Please specify source:http://blog.csdn.net/allen315410/article/details/42521251Monitoring and unloading scenarios and principle analysis 1, situational analysisIn the previous blog I wrote about the NDK development practice project, the use of open source Lame library transcoding MP3, as the previous basic blog for the deepening understanding of use, but such projects are not useful, in addition to practicing the NDK Foundation. This blog, I w

Although Android smartphones and tablets are faster than a day, developers must remember that their applications are still running in a resource-intensive environment, this environment relies primarily on batteries and processors that are unmatched by the latest desktop or laptop. Some of the methods described below can help your applications to "slim down" or "Ten Key Points for Android to improve

both IOS and Android are popular mobile operating systems, used by mobile terminals and smart devices, both of which are designed with advanced software technology, and use advanced design patterns to facilitate application development. What technologies are used in the design of the framework? What design patterns are used? What are the similarities and differen

, which expose the two methods to JavaScript scripts. This allows JavaScript scripts to invoke both methods through MyObj. The HTML page code is as follows: When the user clicks on the two buttons on the page, the JavaScript script for the page invokes the Android method via MyObj. To run the instance, click the first button and the effect is as follows: Click on the second button, the effect is as follows: The above is a small se

. This document focuses on common APIs and development technologies to provide the best practices for your applications and users' security risks. The best practices are constantly evolving, we recommend that you check the application development process at any time. This article includes: Ø use virtual machine code Use local code Ø Data Storage Use IPC Use Permi

following values. value Description "none" There are no additional UI options. This is the default value. "splitActionBarWhenNarrow" When the horizontal space is limited (such as when the device is in portrait mode), a horizontal bar is added at the bottom of the screen to display ActionBar the Action item in. There is no longer a limited number of Action items displaye

Android Application Development-detailed Blog content displayed on the blog client of xiaowu CSDN, androidcsdnAndroid Application Development-detailed blog posts displayed on the blog client of xiaowu CSDNIn the previous blog, we will introduce how to embed rice advertisemen

Android development example-Application of admission scores to colleges and universities This series of articles provides a simple Android Application Development example method. The steps are as follows: 1. Obtain the data source

an android Project In eclipse, clickFile> New> Android Project. 1. Set the project name to HelloAndroid. 2. Select Android 2.2 For Build Target. 3 Application name (Application name): for example, doroleApp 4 Package name (Package name): for example, com. dorole 5 Create Ac

Android Application development performance optimization 3: merge tag, androidmergeI have never used the merge tag during development. After my colleagues told me about it, I tried to use the merge tag, it is found that this label is indeed very helpful for application layou

. adapterView; import android. widget. arrayAdapter; import android. widget. listView; import android. widget. adapterView. onItemClickListener; public class mylist extends Activity {private Object [] actobj = {"Personal Financial Management", myrmbmanage. class, "personal log", myrizi. class, }; Public void onCreate (Bundle savedInstanceState) {super. onCreate (

Android Application Development-Summary of Xiao Wu CSDN blog client, androidcsdnAndroid Application Development-Summary of xiaowu CSDN blog ClientLittle Wu CSDN blog client development has come to an end, this work has been succes

1. What is Android? Android is an open-source mobile operating system developed by Google based on the Linux platform. It includes the operating system, user interface, and Application Program -- All software required for mobile phone work, and there is no exclusive right obstacle to innovation in the mobile industry in the past. Google has developed

that the "USB debug" option on the device is enabled (mostly in "Settings"-> "application"-> "development" or in "Developer options" on systems above 4.0 ).Run the application from Eclipse, open a project file, and click Run in the toolbar. Eclipse will install the application to the device you are connected to and st

Android Application Development-detailed blog posts displayed on the blog client of xiaowu CSDNAndroid Application Development-detailed blog posts displayed on the blog client of xiaowu CSDNIn the previous blog, we will introduce how to embed rice advertisements and get prof

Preface This article records the development process of an application that interacts with parameters and data at the Java layer and JNI layer, laying the foundation for implementing a fully functional application with Java and JNI. This article assumes that the reader has set up the Eclipse and NDK development enviro

android simulator is developed with qeum. Its image file is divided into four parts and placed under the tools directory. If we modify qeum, we may be able to play with its Linux system. 4. How to develop android? Android supports running and debugging application software on the simulator. If you are interested,

In Android apps, the most memory-intensive is the picture resource. And in the Android system, when reading bitmap bitmap, the stack size of the picture in the virtual machine is only 8M, and if it is exceeded, a OutOfMemory exception appears. So, for the memory optimization of the picture, it is the important content of the Android

The most beautiful application-from the point of view of Android development engineers @author ASCE1885 's Github book Weibo CSDN Recently found the most beautiful application of such a website, it will regularly introduce some very interesting app, as a developer, every time you see a great app will be an