Shenzhen ZTRON Microelectronics Co., Ltd
Telephone
0755-8299 4126

Software

Java mobile phone software development


Application of mobile phone software development technology based on java development language


With the advent of the information age, people's pace of life has become faster and faster. In order to make communication between people more convenient, smart phones emerged as the times require, and quickly occupied all areas of people's lives. Mobile phone software Development has also become a hot industry in today's society for a while. At present, most mobile phones in my country use the Android operating system, which uses java as the main development language. Therefore, it is of great significance to study the application of mobile phone software development technology based on java development language.


1. Overview of java development language


1.1 The Connotation and Essence of Java Development Language


Analyzed from the perspective of language types, the java language can be classified as a design language based on network programs. Because of its high application effect and wide application range, almost all programmers need to use this language in the process of designing network application programs. Generally speaking, the specific object of the Java language in the design process is the programming language inside the software system. The main purpose of the design is to coordinate the different requirements between different software and application programs, so as to achieve the purpose of improving the internal utilization efficiency of software applications. After the java language is interpreted and compiled, it will form two different processes, and after translation, it can form the source code required for system design, and can also realize the conversion of virtual machine functions, which can be used in the identification programs of other electronic devices. Among them, the java virtual machine is an imaginary operating device that realizes software simulation work through a computer. After the source program of the java language is translated, the corresponding bytecode can be obtained. This bytecode can be interpreted and translated, and applied to the receiver As machine code in the machine, it can also be recognized by the virtual machine and applied to the programming work.


1.2 Features of java development language


As a new technology in the development of modern society, java language can be applied to the development and design of mobile phone application software, and because of its good security and reliability, it has a good scope of use in the development of mobile phone software applications. According to the survey, the author concludes that the java language has the following two main features, namely object-oriented and reliability. Because all objects in the Java language are not restricted by entities, in the process of encapsulation, the methods and data covered by all objects are processed uniformly, realizing the good encapsulation function of the Java language. Moreover, compared with the traditional procedural programming language, the object programming performed by java language is all centered on the object, and the message is its main driver. Therefore, the Java language is a programming language between objects and messages. In addition, compared to other software programming languages, the java language is relatively safe and reliable, so the java language is widely used in the software application design and development of different types of electronic products. Although the java language has not yet implemented pointer support, the java language can effectively reduce illegal access, thereby effectively ensuring the security and reliability of the electronic product system software.


2. Discussion on the application of mobile phone software development technology based on java development language


2.1 The main methods of java mobile phone software development


In the development process of mobile phone software, the java development language is the main writing tool used. After it is packaged into a file in apk format, the application program can be regarded as an arbitrary file. Under normal circumstances, when the application program in the Android mobile phone is in the default state, linux can run independently. When the user must use an application program in the mobile phone to execute the relevant code, linux will automatically start For a program, if the execution code started in this way cannot meet the requirements of the program, the started application will automatically switch to the stopped state and will not continue to run. It can be seen from this that the mobile phone software based on the java development language will have a certain degree of independence in the process of running.


Although the Java development language is derived from the C++ language, it removes many unreliable factors in the C++ language, which can prevent programming errors in the development of mobile phone software. When developing mobile phone software based on the java development language, developers can use the security mechanism of java to prevent the emergence of virus programs and avoid threats to the local system caused by downloaded programs. When the bytecode of the java language is input into the interpreter, it should first be checked with a bytecode verifier, and then the java interpreter determines the memory layout of the software program. Next, the developer can use the class loader to load the classes in the network area into the separate memory area of the mobile phone software, so as to avoid mutual interference and destruction between different software programs. Finally, the client's mobile phone software user can use classes loaded from the network to set access restrictions so that others can only access part of the file system.


2.2 Precautions for java mobile phone software development


For mobile phone software developers based on the Java development language, the authority setting work must not be ignored. No matter in the design of the user interface, or in the use and acquisition of resources, more attention must be paid to the authority setting work . For mobile phone software permission settings, its function is mainly to protect each application program in the mobile phone. In general, when mobile phone software developers name permissions, they should obtain the corresponding permissions by the way, so that users of mobile phone software can get a better experience. In addition, the developer should also add some appropriate tags to the application and explain these tags in detail, which is also the support provided for the set permissions. Generally speaking, in the process of generating the user interface, developers can mainly use two generation methods, one is to generate directly with the corresponding code, and the other is to use the XML configuration of the mobile phone software to generate. It should be noted that when developers use the XML configuration of mobile phone software to generate, they must do UI design work in advance, especially paying attention to linear layout and relative layout. When obtaining and using resources, developers need to write the supported format of the file on the basis of the Java development language, so that the application program can realize the effective analysis of the resources when it is running, and at the same time, it can quickly complete the development of the software. non-code tracing.


2.3 The creation of java mobile phone software development environment


When developing mobile phone software based on the Java development language, developers need to focus on developing and researching the application layer software of the mobile phone. When developing mobile phone software, we must pay attention to the creation of the mobile phone software development environment. Only in a good mobile phone software development environment can the java development language better help developers develop mobile phone software. At the same time, developers should also pay more attention to Eclipse security work, as well as the installation of plug-ins and the installation of Anroid SDK. The reason why we should pay attention to the creation of the mobile phone software development environment under the java development language is mainly to enable the mobile phone system to start normally. Provide a good environment for the application of java development language in mobile phone software. For the installation of plug-ins and Eclipse, developers should first download these software from the official website, and install them immediately after downloading. The main purpose of installing the Anroid SDK is to package the resources in the database, and then download other software after the package is completed, and link it with the environment required for software development, do a good job in the design of mobile phone software, etc. Do not connect until the work is complete. Generally speaking, the mobile phone software based on the Java development language is rarely limited by the hardware of the mobile phone during the development process, and only the software part needs to be designed by the developer. Ensuring that the two can be kept independent from each other in the time of development and design will not only improve the security of the mobile phone software, but also improve the reliability of the mobile phone software.


3. Design and application of mobile phone encryption software based on java development language


3.1 Utilization of platforms and technologies


At the current stage, the most commonly used mobile phone system is the Android system, which was first developed by Google in the United States. The Android system not only has very powerful performance, but also has a very open feature, and this unique openness is also the main reason why the Android system can quickly become the leader of mobile communication devices after its advent. In the Android system, Eclipse is a development platform based on the java development language. For Eclipse, it is not only a piece of software in the java development language, but also a further expansion of the development tools based on the java development language. Therefore, if you want to design mobile phone text message encryption software, you must rely on the DES encryption algorithm. The DES encryption algorithm can use cyclic and iterative methods to complete the calculation transformation in the mobile phone software, which can not only encrypt data, but also protect data. Generally speaking, the main ciphertext information in the DES encryption algorithm is composed of keys and binary information. According to relevant investigation and research, due to the common influence of the number of digits of the key and the number of iterations, some defects often appear in the DES encryption algorithm. Therefore, for the information with fewer characters in the short message, the encryption process should be completed by 3DES, which can effectively improve the encryption degree of the information.


3.2 Realization of java SMS encryption software


For developers of SMS encryption software based on the java development language, if they want to do a good job in 3DES encryption and decryption, the most important operation is to set the encryption and decryption procedures. In general, developers can use Ek() and Dk() to represent DES encryption and decryption respectively, where K means the DES algorithm, P means the plaintext, and C means the secret table. It can be seen that the encryption method of 3DES can be expressed as C=Ek3(Dk2(Ek1(P))), and the decryption formula of 3DES can be expressed as P=Dk1((EK2(Dk3(C). Through actual investigation and The research shows that there is no problem in the process of writing mobile phone software, so it can be concluded that the cause of the deviation of the encryption result is MODE and padding. In view of this situation, developers must use exactly the same MODE when coding through the java development language and padding, so as to ensure the normal communication of mobile phone software.


For developers of SMS encryption software based on the java development language, when using the DES encryption algorithm to develop and develop the encryption and confidentiality of mobile phone information, they should flexibly use the mobile phone platform to achieve these operations, which requires developers It is necessary to write the encryption program and decryption program of the mobile phone software in advance, so as to improve the running speed of the encryption software and ensure the operation effect of the encryption software. The specific steps are as follows: first, the developer should connect the mobile phone used for development work to the corresponding computer, and write the encryption and decryption program and the decryption program through the virtual platform on the electric energy, so that the information encryption work of the mobile phone software can be more conveniently. Immediately afterwards, the developer should enter the software into the sending and receiving position of the short message, and observe the sending and receiving of the short message. Then, the developer needs to run the mobile phone program, use the message interface of the encryption software to write the encrypted information, and then determine the contact person of the software after the writing is completed, thus completing the writing of the information. Finally, the developer needs to enter the receiving interface of the mobile phone and write the information just received, so as to complete the decryption of the software information.


Summarize


It can be seen that the mobile phone software development technology based on the java development language is still in the stage of continuous development, but it has also achieved very good research results, and it also has a good performance in the application of mobile phone encryption software. With the continuous advancement of science and technology, technicians in the mobile phone software development industry should continuously improve their comprehensive capabilities, innovate on the basis of the java development language, develop more new software, and improve the encryption performance of the software to enable functions The software in the mobile phone can better serve people's life.


The above is the application of mobile phone software development technology based on java development language introduced by Shenzhen Zuchuang Microelectronics Co., Ltd. If you have software and hardware function development needs for smart electronic products, you can rest assured to entrust them to us. We have rich experience in customized development of electronic products, and can evaluate the development cycle and IC price as soon as possible, and can also calculate PCBA quotations. We are a number of chip agents at home and abroad: Songhan, Yingguang, Jieli, Ankai, Quanzhi, realtek, with MCU, voice IC, Bluetooth IC and module, wifi module. We have hardware design and software development capabilities. Covering circuit design, PCB design, single-chip microcomputer development, software custom development, APP custom development, WeChat official account development, voice recognition technology, Bluetooth wifi development, etc. It can also undertake the research and development of smart electronic products, the design of household appliances, the development of beauty equipment, the development of Internet of Things applications, the design of smart home solutions, the development of TWS earphones, the development of Bluetooth earphone speakers, the development of children's toys, and the research and development of electronic education products.


  • TOP