Summary:
With the rapid development of the Internet and mobile communication, mobile users can enjoy the efficiency and efficiency provided by the Internet, making our lives more convenient, effective and improved.
Android has its own unique characteristics and composition, as well as the composition and task of Android, Android operating system has great advantages and unique power, making people's lives more convenient. The program was developed in Eclipse, using various components and the SQLite library.
We are mainly used to record some things in the mobile phone, with the continuous progress of people in life and learning, so that we have to record more and more things every day, the mobile phone notepad is a very practical and convenient mobile phone software, we can use it to record and share the bits and pieces of life, in different occasions and places, you can read at any time when you forget, it brings us a very convenient attitude to life.
Keywords: Notepad, Eclipse, Text Notes, SQLite, Add, Delete, Modify and Search.
Table of Contents: Abstract I
abstract ii
Table of Contents iii
1 Introduction 1
1.1 Purpose and significance of the research topic 1
1.2 Background of the Subject 1
1.3 The development status of the mobile phone operating system 2
1.4 Outlook for smartphone operating systems 3
2 Architectural analysis of Android system development 4
2.1 Android Features 4
2.2 Android Development Platform Setup and Architecture 4
2.2.1 Step 4 of the development platform setup
2.2.2 Android Architecture 5
2.3 Summary Analysis of Android 7
3 Android Application Structure and System Analysis 8
3.1 Android API 8
3.1.1 The main parts of the Android API 8
3.2 Android Application Structure Parsing 9
3.2.1 Activity 9
3.2.2 intent 10
3.2.3 Services 10
3.2.4 content provider 10
3.3 Detailed analysis of intent 11
3.3.1 Abstract description of intent 11
3.4 The life cycle of an activity in Android 12
3.4.2 How the activity works 13
3.5 The overall framework in the app 14
3.5.1 Application Requirements Analysis 14
3.5.2 Overview of the main features of the app 15
3.5.3 The main interface of the app 15
3.5.4 New Features for Notepad 15
3.5.5 Functions of adding, deleting, modifying, and checking the contents of the notebook 16
3.5.6 Export the contents of Notepad to SD card 16
3.5.7 Statistics of data 16
4 Detailed design and implementation 17
4.1 The logical design of the notepad 17
4.2 Detailed design 17
4.2.1 Research Objectives 17
4.2.2 Functional flowchart of notepad 17
4.3 Functional implementation of the application 18
4.3.2 Implementation of information creation 19
4.3.3 Implementation of adding, deleting, modifying, and exporting SD cards to Notepad 25
5 Summary 31
References 32
Acknowledgments 33