Teach you how to write an android Project @ Phase I project-ID card query innovation (project summary)

My first project tutorial was successfully completed. This article will share ideas and some of my experiences with you. During the study period, do not just relax yourself after completing the project during the improvement phase. Make sure to summarize your project and summarize the problems you encountered during the project, if you try again later, you will not be wrong! It is also important that you extract the frequently used items in your project and summarize them to facilitate your work.
It was not very smooth when I was just working on this project. At the beginning, I had a hard time writing data into the database and used any methods. Finally, the debugging on the real machine was successful, and the phone code was UTF-8! And because I didn't understand it too well at the beginning. Android System.ProgramAdded a completely exited function to the mobile phone homepage. In fact, the android program does not need to exit completely. This is like the Java recycle mechanism. The Android system has a rule to recycle the memory. A minimum value is set in the memory. When the minimum value is smaller than the minimum value, a list is automatically called up, which causes the user to close useless programs.
I often know when using other systems that the relative speed will be slow if there are too many processes, but Android does not. Because Android is developed based on the Linux system, each program has an independent ID and each program has its own virtual machine, this will avoid program crashes and cause the entire system to crash. The speed is faster, but every program consumes a considerable amount of memory.
There are some layout issues of the project. I will explain only part of my program. If other functions are the same, I will find a typical one, one page in the project is the effect of a four-leaf combination. Each leaf is equivalent to a starter. To adapt to the screen resolution of a mobile phone, it is also a long time to study. The last step is to use the relative layout. At this point, I also fell in love with the relative layout. If you have any poor page solution, you can try to use the relative layout. This is the longest use of the project.
I have summarized it here. AsCodeYou can summarize and reply to the comments for discussion.
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1. this post is a communication post that can only be associated with technology. It can be a problem you encounter in your project or your own gains in the project, you can also comment on the summary of your project.
2. as this is the first issue of this topic tutorial, you can raise any questions or improper descriptions. You can also raise the topic about the projects you want to see in the future. I will try my best to satisfy you.
3. Don't post some supportive words or articles irrelevant to 1 or 2 or topics. I will also delete them because this post is only used for technical exchanges.
4. I will reply to any comments in this post.
Teach you how to write an android Project @ Phase I project -- Innovation in ID card query (5)
Teach you how to write an android Project @ Phase I project -- Innovation in ID card query (4)
Teach you how to write an android Project @ Phase I project -- Innovation in ID card query (3)
Teach you how to write an android Project @ Phase I project -- Innovation in ID card query (2)
Teach you how to write an android Project @ Phase I project -- Innovation in ID card query (1)