A full set of teaching materials, real questions of Android interview of 7 major manufacturers including Alibaba Kwai pinduoduo

Preface

I promised you last time , It's bound to come out  HTTP  A series of articles , Today, I finally finished finishing . As a  web  Development ,HTTP  It's almost something to deal with every day , But I find that most people are right  HTTP  Just a little taste , I don't know much about more details and principles , I feel very tired during the interview . This article is to help you set up a complete  HTTP  Knowledge system , And reach a certain depth , Calmly deal with all kinds of soul questions , And at the same time improve yourself as a  web  Development of professional quality bar . This is the mind map of this article :

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 , Inherit , polymorphic , Classes and objects , Object initialization and recycling ; Constructors 、this keyword 、 Method and method parameter passing process 、static keyword 、 Inner class .

4). Object instantiation process 、 Method coverage 、final keyword 、 abstract class 、 Interface 、 An analysis of the advantages and disadvantages of inheritance ; Polymorphism of objects ： Conversion between subclass and superclass 、 Application of abstract classes and interfaces in polymorphism 、 Benefits of polymorphism .

5).Java exception handling , The mechanism of exceptions .

6). Common design patterns ：Singleton、Template、Strategy Pattern .

7).JavaAPI Introduce ： There are three basic data types: packaging ,System and Runtime class ,Date and DateFomat Class etc. .

8).Java The collection is introduced ：Collection、Set、List、ArrayList、LinkedList、Hashset、Map、HashMap、Iterator And so on API.

9).JavaI/ 

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 O I / O stream ：File and FileRandomAccess class , 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 packaging flow , And commonly used packaging , Computer coding .

10).Java Advanced features ： Reflection and generics .

11). Multithreading principle ： How to create multithreading in a program (Thread、Runnable), Thread safety problem , Synchronization of threads , Communication between threads 、 Deadlock .

2、android UI Programming

1)、Android Development environment construction ：Android Introduce ,Android Development environment construction , first Android Applications ,Android Application directory structure .

2)、Android Use of primary controls ：

TextView Use of control

Button How to use control

EditText How to use control

ImageView How to use

RadioButton How to use

Checkbox How to use

Menu How to use

3)、Android Use of advanced controls ：

ListView How to use

GridView How to use

Adapter How to use

Spinner How to use

Gallary How to use

ScrollView How to use

RecyclerView

4、 Use of dialog boxes and menus ：

Dialog Basic concepts of

BlockquoteAlertDialog How to use

DatePickerDialog How to use

Menu How to use

Customize Menu Implementation method

5. Control layout method ：

How to use linear layout

How to use relative layout

6. many Acitivity management ：

AndroidManifest.xml Role of documents

Intent How to use

Use Intent How to transfer data

start-up Activity Methods

IntentFilter How to use

Activity Group How to use

7、 Custom control implementation method ：

Customize ListView Implementation method

folding ListView How to use

Customize Adapter Implementation method

Customize View Implementation method

Dynamic control layout on the implementation of

Pull up refresh pull down to load more

3、android Network programming and data storage

1). be based on Android Platform HTTP Communications ：

Http Review of the agreement

Use Get Method to submit data to the server

Use POST Method to submit data to the server

Use Http Protocol to achieve multi-threaded download

Use Http The protocol implements breakpoint renewal

2).Android Data storage technology ：

SQLite3 Database introduction

SQL Sentence review

SQLite3 Programming interface introduction

SQLite3 Business management

SQLite3 How to use the cursor

SQLite3 Performance analysis

visit SDCard Methods

visit SharedPreferences Methods

Last

I've compiled a complete study, thinking and Android Develop a complete collection of knowledge PDF.

Of course, practice makes true knowledge , Even if there is a learning line, we should pay attention to practice , Only when the learned content is combined with practical operation can it be truly mastered .