Google! Android2 mobile app design entry notes (1)

Article 1

Chapter 01 android

Like other android development tutorials, the beginning is generally a brief introduction to the basic information of Android, and I don't forget to give a thumbs up. This book is no exception. The advantage is that it is understandable to mobilize the reader's passion for developing Android applications. The end of each chapter is reference materials and provides many practical website links. This should belong to the writing style or feature of this book, that is, to guide readers to find a way to solve the problems they encounter. Therefore, this book is a relatively suitable book for self-study, and it is also worthy of the name of ten entry books.

Chapter 02 install Android development tools

Basic Process: download all the tools used, install JDK, install Android SDK, and install ADT for eclipse. This process is basically not too difficult. The biggest possible problem is the speed of the network!

Chapter 03 management SDK

This chapter shows another style of the book, that is, the development tools are well explained. This chapter describes the evolution of the android development tool architecture, download SDK components, upgrade development tools and SDK components, and delete SDK components. In fact, these operations can be easily completed based on the GUI provided by the SDK. This chapter is redundant.

Chapter 04 open an existing project

1. 4-1 "open project" should be "new project ".
2. Open an existing project by using File> Import of Eclipse, General> existing projects into workspace, browse to the project directory, and finish. This should be entered in eclipse's method of managing Java projects. Java and eclipse have never been used before, which is a new trick. I feel that the Visual Studio project management method may be better or habitual, but as an IDE, eclipse cannot be much worse than Visual Studio.
3. The project opened above may have a Red Cross due to SDK version issues. Right-click the project folder icon and select Android tool, and then select fix project properties to solve some problems. You can also manually modify the project. Property file of the project to change the SDK version or API level.

Chapter 05 operate the android Virtual Machine

1. Enter the shortcut key when the VM is running. Remember a set of Ctrl + F12 and switch the screen direction;
2. delete a command lineProgramThe author uses
ADB Shell
CD Data/APP/
Rm xxx.xxx.apk
In this way, the program is deleted directly, and there may be issues left over, And the uninstallation cannot be completed.
In fact, the android command in the command line has an option to uninstall the program.

Chapter 06 create an andriod Application

This section describes the file organization and usage of the application templates automatically generated by the android SDK. The main experience is that Java's package management is closely related to the file system, which is not the same as C, C ++, and C #. It is both advantageous and inconvenient, but it is similar to Python. When I first entered the world of Java, I felt that many places were not the same.