Android-BaseLine basic development framework, androidbaseline

Android-BaseLine basic development framework, androidbaseline

Recently, I summarized a basic Android rapid development framework, Android-BaseLine. Android-BaseLine has far fewer functions than other frameworks. A good framework should not be too bloated, A lot of functions may not be used in general cases. The framework that is really suitable for you should be summarized and extracted step by step during the development process, therefore, Android-BaseLine only provides the basic functions required by General APP development. After several restructures, some of the previously designed functional modules were discarded, some of the industry's useful frameworks were used, and some framework ideas were also used for reference, built a lightweight development framework such as Android-BaseLine.

Github address: https://github.com/hiphonezhu/Android-BaseLine

The Android-BaseLine framework provides the following basic functions:

1. Upgrade the Volley framework to support multiattachment upload and Progress Update callback.

2. provides a unified network request business logic framework, using EventBus and Volley for collaboration

3. provides a unified asynchronous time-consuming task execution framework and uses EventBus as the notification center for collaborative completion.

4. Provides a log management framework that standardizes the size, quantity, and format of log storage and supports print-level control.

5. provides a global exception handling framework. User crash information can be sent to the developer through Email in a timely manner.

6. provides unified database access interfaces and supports concurrent multi-threaded access

7. The SharedPreferences configuration file is saved in the database to avoid the storage failure of some mobile phones. The usage is consistent with that of the native API.

8. Basic Activity provides the View annotation and event binding framework, as well as unified UI components such as Toast and ProgressDialog.

9. Basic Adapter, which provides control reuse Management Mechanism

10. When App ANR is supported, you can send ANR traces to developers by Email in a timely manner.

What is the five application development frameworks of android?

The android Application Development Framework consists of five parts: Linux Kernel, Android Runtime, Libraries, Application Framework, and Applications. The second part will detail these five parts. The bottom-up analysis layers are as follows.

Android Architecture

1. Linux Kernel

Android provides core system services based on Linux 2.6, such as security, memory management, process management, network stack, and driver model. Linux Kernel is also an abstraction layer between hardware and software. It hides specific hardware details and provides unified services for the upper layer. If you have learned computer networks and know OSI/RM, you will know that the benefit of layering is to use the services provided by the lower layer to provide unified services for the upper layer, shielding the differences between the current layer and the following layers, when the current layer and the following layers change, the upper layer is not affected. That is to say, each layer performs its own duties, and each layer provides a fixed SAP (Service Access Point). The professional points can be said to be high cohesion and low coupling. If you are only engaged in application development, you do not need to have a deep understanding of the Linux Kernel layer.

2. Android Runtime

Android contains a collection of core libraries, providing most of the functions available in the core library of Java programming language. Every Android application is an instance in the Dalvik Virtual Machine and runs in its own process. The Dalvik virtual machine is designed to efficiently run multiple virtual machines on one device. The Dalvik Virtual Machine executable file format is. dex. dex is a compression format designed for Dalvik, suitable for systems with limited memory and processor speed. Most virtual machines, including JVM, are stack-based, while Dalvik virtual machines are register-based. The two architectures have their own advantages and disadvantages. Generally, the stack-based machine requires more commands, while the register-based machine requires more commands. Dx is a set of tools that can convert Java. class to. dex format. A dex file usually has multiple. classes. Because dex sometimes has to be optimized, it will increase the file size by 1 to 4 times and end with ODEX. The Dalvik Virtual Machine relies on the Linux kernel to provide basic functions, such as thread and underlying memory management.

3. Libraries

Android contains a collection of C/C ++ libraries for various components of the Android system. These functions are exposed to developers through the Android application framework. The following lists some core libraries: system C library-the BSD derivative of the Standard C system library (libc), adjusted to the embedded Linux device media library-The PacketVideo-based OpenCORE. These libraries support playing and recording many popular audio and video formats, as well as static image files, including MPEG4 and H. 264. Manage MP3, AAC, AMR, JPG, and PNG interfaces-manage the access display subsystem and seamlessly combine the 2D and 3D graphics layers LibWebCore of multiple applications-a new Web browser engine, driver Android browser and Embedded web View SGL-Basic 2D graphics engine 3D library-Based on OpenGL ES 1.0 APIs implementation. Libraries use hardware 3D acceleration or include highly optimized 3D software grating FreeType -- bitmap and vector font rendering SQLite -- powerful and lightweight relational database engines available for all applications

4. Application Framework

By providing an open development platform, Android enables developers to develop extremely rich and novel applications. Developers can freely take advantage of the hardware advantages of devices, access location information, run background services, Set alarms, and add notifications to the status bar. Developers can fully use the APIs framework used by core applications. Architecture of the application ...... the remaining full text>

Android development framework

Google's gson package can be used for json parsing.
The Network request and cache mechanism (generally referred to as image cache) can be viewed by volley.
The database is relatively simple. The android app is already encapsulated. But you can check FinalDb in Afinal.
The UI is useless. It is written by yourself. You can master the view and viewgroup. Basically, you can master all the controls.