conclusion

Android architecture learning is a long and difficult road, can not rely on a passion, not to stay up for a few days and nights can learn, must develop the habit of studying hard at ordinary times. So: persistence!

Bytedance’s 2020 interview questions have also been compiled into a video and PDF (which took a lot more effort than expected), containing the knowledge and details. If you have a good command of the knowledge points listed in Tencent Documentation, you will greatly increase your chances of passing the first two rounds of technical interviews. These contents are for everyone’s reference and mutual learning.

Write this first, code word is not easy, write very one-sided bad place please point out, if feel have reference value of friends can also pay attention to me

① “Android interview 真题解析 全 文” PDF complete hd version +② “Android interview knowledge system” learning mind mapping compression package —————— can be in my [Github] reading download, finally feel helpful, in need of friends can point a like

Learning knowledge summary

1. Java SE basics

1).Java basic data types and expressions, branch loop. 2).String and StringBuffer use, regular expressions. 3). Object-oriented abstraction, encapsulation, inheritance, polymorphism, class and object, object initialization and recycling; Constructor, this keyword, method and method argument passing, static keyword, inner class. 4). Analysis of the advantages and disadvantages of object instantiation process, method coverage, final keywords, abstract classes, interfaces and inheritance; Object polymorphism: transformations between subclasses and superclasses, application of abstract classes and interfaces to polymorphism, benefits of polymorphism. 5).Java exception processing, the mechanism and principle of exception. 6). Common design patterns: Singleton, Template, Strategy. 7).JavaAPI introduction: basic data type wrapper classes, System and Runtime classes, Date and DateFomat classes, etc. 8).Java Collection: Collection, Set, List, ArrayList, LinkedList, Hashset, Map, HashMap, Iterator and other common Collection class API. 9).JavaI/O input/output stream: File and FileRandomAccess classes, byte stream InputStream and OutputStream, character stream Reader and Writer, and the corresponding implementation classes, IO performance analysis, byte and character conversion streams, the concept of wrapper stream, and common wrapper classes, computer coding. 10).Java advanced features: Reflection and generics 11). The principle of multithreading: how to create multithreading (Thread, Runnable) in the program, Thread safety issues, Thread synchronization, communication between threads, deadlock.

2. Android UI programming

1), Android development environment construction: Introduction to Android, Android development environment construction, the first Android application, Android application directory structure.

2) The use of Android primary controls:

TextView control use Button control use EditText control use ImageView use RadioButton use Checkbox use Menu use method

3) The use of Android advanced controls:

ListView usage GridView usage Adapter usage Spinner usage Gallary usage ScrollView usage RecyclerView

4. Use of dialog boxes and menus:

Dialog basic concept BlockquoteAlertDialog usage method DatePickerDialog usage method Menu user-defined implementation method

5. Control layout method:

How to use linear layout relative to layout

6. Multi-acitivity management:

IntentFilter IntentFilter IntentFilter IntentFilter IntentFilter IntentFilter

7, custom control implementation method:

Custom ListView folding ListView using custom Adapter implementation method custom View implementation method dynamic control layout implementation method up refresh down load more

3. Android network programming and data storage

1). HTTP communication based on Android platform:

Http Protocol review How to submit data to the server using the Get method How to submit data to the server using the POST method How to use the Http protocol to achieve multi-threaded download using the Http protocol to achieve breakpoint continuation

2).Android data storage technology

SQLite3 Database Introduction SQL Statement Review SQLite3 Programming interface Introduction SQLite3 transaction management SQLite3 Cursor usage SQLite3 Performance analysis Method of accessing SDCard Method of accessing SharedPreferences

The last

The article is not easy, if you like this article, or help you hope that you like to forward attention oh. The article will be updated continuously. Absolutely dry!!

Due to the length of the article, see the detailed article and access to the study notes link:GitHub

  • About actual combat, I think each do development have something to say, for small white, the lack of actual combat experience is a common disease, so in addition to the actual work process, how do we go to understand the actual combat content? In fact, it is necessary for us to read some e-books related to actual combat. So far, I have a fairly comprehensive collection of e-books, HTTP, custom view, c++, MVP, Android source code design mode, Android development art exploration, Java concurrent programming art, Android based on Glide secondary packaging, Android memory optimization — common memory leaks and optimization scheme.Java programming ideas (4th edition) and other advanced technologies are included.

  • Advanced Knowledge Body diagram for Android Senior ArchitectAs for the video, I also collected some by myself and classified them according to the Learning route of Android. There are a total of eight modules according to the Android learning route, among which there are corresponding videos, just to help you learn systematically. Next take a look at the map and corresponding system video!!

  • Android to standard Ali P7 learning video

  • BATJ Android high-frequency interview questionsIn addition to some popular hot technology interview questions, such as Kotlin, database, Java virtual machine interview questions, arrays, Framework, hybrid cross-platform development, etc