Android Starter Development Learning Notes

Unresolved issues that are encountered

Problem: The first run of [INSTALL_FAILED_OLDER_SDK] error, the reason is unclear

Temporary solution: commented out the <!--in the Androidmanifest.xml file uses-sdk android:minsdkversion=/--> this line

Study Notes

Android's graphical user interface is built from multiple view and ViewGroup. View is a common UI form widget, such as a button or text field, and ViewGroup is not visible as a container for defining the layout of a child view, such as a grid part (grid) and a vertical list part (list);

Android Process Category: Foreground process visible Process service process background process empty process

Android Four components: Activity Service Intent

A single-state design pattern can be simply attributed to the inability to create an instance of the class in a way that is not sufficient for new #终于明白了: #

Javadoc can automatically generate documents based on annotations

1, an Android project at the time of establishment, in addition to the IDE to help us build things, and what are the necessary preparations, such as to manually build which directories, files? What are the necessary packages to be cited and so on? 2. What is the project's on-line process? What is the difference between domestic and foreign? 3. Simply introduce the process and function of the APK signature. 4, Android Complex resolution device layout is very time-consuming, according to the standard UE to map can not meet all the equipment adaptation, there is no layout skills? 5, different countries or regions of the device situation and the Android version of the situation is there a document for reference? 6, the Project Java Package Division and naming there is no standard to follow? Does naming a class name, control ID, layout file, and so on need not require a naming convention? 7. What are the components that are accumulated in the current project? Is there a standard code for common effects that can be used for reference? For example, Coverflow, viewpager sliding switch, all kinds of animation, such as 8, the new person in the process of doing the project may not notice what pits? For example, the image is not cached, the style or string is not placed in the XML file and so on 9, the current statistical norms unified it? What kind of statistics does Android send? 10, @ Han review My code in the process feel I have to improve the place and obvious errors? Look how many places you've changed for me ... 11, Google has completely turned to the IntelliJ idea Camp, is it recommended that our rd all turn to IntelliJ? 12, can recommend some good study website, book What? Do you have a good study plan or a practice plan for your reference?

Android Starter Development Learning Notes