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E-raamat: Android App-Hook and Plug-In Technology [Taylor & Francis e-raamat]

  • Formaat: 426 pages, 3 Tables, black and white
  • Ilmumisaeg: 06-Sep-2019
  • Kirjastus: CRC Press
  • ISBN-13: 9780429262968
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  • Taylor & Francis e-raamat
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Android App-Hook and Plug-In TechnologySuurem pilt
  • Formaat: 426 pages, 3 Tables, black and white
  • Ilmumisaeg: 06-Sep-2019
  • Kirjastus: CRC Press
  • ISBN-13: 9780429262968
Teised raamatud teemal:
Taylor & Francis e-raamatudRohkem infot Taylor & Francis e-raamatute kohta
Raamatu kodulehekülg: https://www.taylorfrancis.com/books/9780429262968

This book presents the Android plug-in technology used in Android development. This technology is widely used by a majority of Chinese internet companies, and is becoming more widely used worldwide. The book fully describes the history of Android plug-in technology, the installation and startup process, and new features of the Android plug-in technology. It also explores plug-in solutions for peripheral technologies. The book is designed to help Android app developers better understand the underlying technology of the Android system.

Features

  • Introduces Android system knowledge, including the communication between AMS and four components
  • Describes the Hook technique by Proxy.newProxyInstance and reflection, to modify Android system behavior, for example, to launch an activity not declared in the AndroidManifest.
  • Shows how to use the Hook apk packaging process in Gradle
  • Covers how to merge the resources in the plugin app and the host app, and how to merge dex of the host app and all the plugin apps
  • Presents the SO technique and how to launch SO files dynamically

Acknowledgments xvii
About the Author xix
About the Translators xxi
Introduction xxiii
Chapter 1 Plug-Ins from the Past to the Future 1(12)
1.1 Android Plug-Ins In China
1(1)
1.2 History Of Android Plug-In Techniques
2(6)
1.3 Usage Of Plug-Ins
8(1)
1.4 Another Choice: React Native
9(1)
1.5 Do All Components Require Plug-Ins?
10(1)
1.6 Double-Opening And Virtual Machine
10(1)
1.7 From Native To HTML5
11(1)
1.8 Summary
12(1)
Chapter 2 The Underlying Knowledge of Android 13(66)
2.1 Overview Of Underlying Android Knowledge
13(2)
2.2 Binder
15(2)
2.3 AIDL
17(5)
2.4 ActivityManagerService
22(1)
2.5 Activity Working Principles
23(14)
2.5.1 How to Launch an App
23(1)
2.5.2 Starting the App Is Not So Simple
24(17)
2.5.2.1 Click the App Icon in Launcher and Send a Message to the AMS
25(5)
2.5.2.2 The AMS Handles the Information from the Launcher
30(1)
2.5.2.3 The Launcher Goes to Sleep and Informs the AMS Again
31(2)
2.5.2.4 The AMS Creates a New Process
33(1)
2.5.2.5 Start a New Process and Inform the AMS
34(1)
2.5.2.6 The AMS Tells the New App Which Activity to Launch
35(1)
2.5.2.7 The Amazon App Starts an Activity
35(2)
2.6 Navigation In App
37(1)
2.7 Family Of Context
38(3)
2.8 Service
41(6)
2.8.1 Start Service in a New Process
41(3)
2.8.1.1 The App Sends a Message to the AMS to Launch Service
42(1)
2.8.1.2 The AMS Creates a New Process
42(1)
2.8.1.3 Start a New Process and Inform the AMS
43(1)
2.8.1.4 The AMS Sends Information to the New Process
43(1)
2.8.1.5 New Process to Launch Service
43(1)
2.8.2 Start a Service in the Same Process
44(1)
2.8.3 Bind a Service in the Same Process
44(3)
2.8.3.1 The App Sends a Message to the AMS to Bind a Service
45(1)
2.8.3.2 The AMS Sends Two Messages to the App Process
45(1)
2.8.3.3 The App Receives the First Message
45(1)
2.8.3.4 The App Receives the Second Message and Sends a Binder Object to the AMS
46(1)
2.8.3.5 AMS Informs the App
46(1)
2.9 BroadcastReceiver
47(4)
2.9.1 Registration
48(1)
2.9.2 Send a Broadcast
49(2)
2.10 ContentProvider
51(6)
2.10.1 The Essence of the ContentProvider
54(1)
2.10.2 The ASM
54(2)
2.10.3 Communication between ContentProvider and the AMS
56(1)
2.11 The PMS And App Installation Process
57(4)
2.11.1 PMS Introduction
57(1)
2.11.2 App Installation Process
58(1)
2.11.3 PackageParser
59(1)
2.11.4 ActivityThread and PackageManager
60(1)
2.12 ClassLoader
61(2)
2.13 Parent-Delegation
63(1)
2.14 Multidex
63(2)
2.15 A Music Player App
65(12)
2.15.1 A Music Player Based on Two Receivers
65(6)
2.15.2 A Music Player Based on One Receiver
71(6)
2.16 Summary
77(2)
Chapter 3 Reflection 79(26)
3.1 Basic Reflection
79(9)
3.1.1 Get the Class Using a String
80(1)
3.1.1.1 Get the Class Using a String
80(1)
3.1.1.2 Class.forName
80(1)
3.1.1.3 Property class
80(1)
3.1.1.4 Property TYPE
80(1)
3.1.2 Get the Property and Method of the Class
81(5)
3.1.2.1 Get the Constructor of the Class
81(2)
3.1.2.2 Invoke a Private Method of the Class
83(1)
3.1.2.3 Invoke a Private and Static Method of the Class
84(1)
3.1.2.4 Get a Private Field of the Class and Modify Its Value
84(1)
3.1.2.5 Get the Private Static Field of the Class and Modify Its Value
85(1)
3.1.3 Generics and Singleton<T>
86(2)
3.2 jOOR
88(5)
3.2.1 Get a Class from a String
89(1)
3.2.1.1 Get a Class from a String
89(1)
3.2.1.2 Get a Class by Using on and get
89(1)
3.2.2 Get the Property and Method of a Class
90(1)
3.2.2.1 Get a Constructor of a Class
90(1)
3.2.2.2 Get the Private Method of the Class
90(1)
3.2.2.3 Get the Private and Static Method of the Class
91(1)
3.2.2.4 Get the Private Field of the Class
91(1)
3.2.2.5 Get the Private and Static Field of the Class
91(1)
3.2.3 Generics and Singleton<T>
91(2)
3.3 Encapsulated Classes Of The Basic Reflection
93(4)
3.3.1 Get a Constructor
93(1)
3.3.2 Invoke Instance Methods
94(1)
3.3.3 Invoke Static Methods
95(1)
3.3.4 Get the Field of the Class and Set Its Value
95(1)
3.3.5 Handle Generics
96(1)
3.4 Further Encapsulation Of The Reflection
97(6)
3.4.1 Reflect a Method with Only One Parameter or without Parameters
97(3)
3.4.2 Replace String with Class Type
100(1)
3.4.3 Differences between the Static and Instance Fields
101(1)
3.4.4 Optimization of the Field Reflection
102(1)
3.5 Summary
103(2)
Chapter 4 Proxy Pattern 105(10)
4.1 What Is A Proxy Pattern?
105(4)
4.1.1 Remote Proxy
106(2)
4.1.2 Write Log
108(1)
4.2 Static-Proxy And Dynamic-Proxy
109(2)
4.3 A Hook On The AMN
111(2)
4.4 A Hook On The PMS
113(1)
4.5 Summary
114(1)
Chapter 5 Hooking startActivity() 115(30)
5.1 Invoke startActivity() In Two Ways
115(1)
5.2 Hooking startActivity() Of The Activity
116(15)
5.2.1 Solution 1: Hooking the Method startActivityForResult of Activity
118(1)
5.2.2 Solution 2: Hooking the Field mInstrumentation of Activity
118(3)
5.2.3 Solution 3: Hooking the Method getDefault() of AMN
121(4)
5.2.4 Solution 4: Hooking the Field mCallback of H
125(3)
5.2.5 Solution 5: Hooking Instrumentation Again
128(3)
5.3 Hooking The Method startActivity Of Context
131(2)
5.3.1 Solution 6: Hooking the Field mInstrumentation of ActivityThread
131(2)
5.3.2 Which Solution Is the Best?
133(1)
5.4 Launch An Activity Not Declared In AndroidManifest.xml
133(10)
5.4.1 How to Hook AMN
133(2)
5.4.2 First Half of the Hook
135(4)
5.4.3 Second Half of the Hook: Hooking the Field mCallback of H
139(2)
5.4.4 Second Half of the Hook: Hooking the mInstrumentation Field of ActivityThread
141(2)
5.5 Summary
143(2)
Chapter 6 The Basic Concepts of Plug-In Techniques 145(14)
6.1 Loading External Dex
145(3)
6.2 Interface-Oriented Programming
148(3)
6.3 Plug-In Thinning
151(3)
6.4 Debugging In Plug-Ins
154(2)
6.5 Application Plug-In Solutions
156(2)
6.6 Summary
158(1)
Chapter 7 Resources in Plug-In 159(22)
7.1 How To Load Resources In Android
159(2)
7.1.1 Types of Resources
159(1)
7.1.2 Resources and AssetManager
160(1)
7.2 Plug-In Solutions Of Resources
161(5)
7.3 Solutions For Changing Skins
166(12)
7.4 Another Plug-In Solution For Changing Skins
178(1)
7.5 Summary
179(2)
Chapter 8 The Plug-In Solution of Four Components 181(68)
8.1 The Simplest Plug-In Solution
181(7)
8.1.1 Pre-Declare Activity and Service of the Plug-In in the HostApp's AndroidManifest.xml
182(1)
8.1.2 Combine the Dex
183(1)
8.1.3 Start a Service of the Plug-In
184(1)
8.1.4 Resources in Activity
185(3)
8.2 A Plug-In Solution For Activity
188(28)
8.2.1 Launch an Activity of a Plug-In Not Declared in the AndroidManifest.xml of the HostApp
188(5)
8.2.2 Solution 1: Based on Dynamic-Proxy
193(12)
8.2.2.1 The Process of Launching an Activity
193(3)
8.2.2.2 Add a Plug-In Activity to the Cache
196(5)
8.2.2.3 Solution 1 of Loading Class in a Plug-In: Create DexClassLoader for Each Plug-In Apk
201(1)
8.2.2.4 Hooking More Classes
202(3)
8.2.3 Solution 2: Merge All the Plug-In Dexes into One Array
205(3)
8.2.4 Plug-In Solution of Resources
208(1)
8.2.5 Support LaunchMode in Plug-In
208(4)
8.2.6 Solution 3: Hook ClassLoader
212(4)
8.3 The Plug-In Solution For Service
216(13)
8.3.1 The Relationship Between Service and Activity
216(2)
8.3.2 StubService
218(2)
8.3.3 Plug-In Solution to startService()
220(6)
8.3.4 Plug-In Solution of bindService
226(3)
8.4 A Plug-In Solution For BroadcastReceiver
229(10)
8.4.1 Receiver Overview
229(2)
8.4.2 A Plug-In Solution for Dynamic Receiver
231(1)
8.4.3 A Plug-In Solution for Static Receiver
231(2)
8.4.4 A Final Plug-In Solution for Static Receiver
233(6)
8.5 A Plug-In Solution For ContentProvider
239(8)
8.5.1 The Basic Concept of ContentProvider
239(1)
8.5.2 A Simple Example of ContentProvider
239(3)
8.5.3 A Plug-In Solution for ContentProvider
242(3)
8.5.4 The Right Time to Install a ContentProvider Plug-In
245(1)
8.5.5 The Forwarding Mechanism of ContentProvider
246(1)
8.6 Summary
247(2)
Chapter 9 A Plug-In Solution Based on Static-Proxy 249(58)
9.1 A Plug-In Solution For Activity Based On Static-Proxy
249(22)
9.1.1 The Idea of Static-Proxy
249(1)
9.1.2 The Simplest Example of Static-Proxy
250(5)
9.1.2.1 Jump from the HostApp to the Plug-In
251(1)
9.1.2.2 Communication between ProxyActivity and Plug-In Activity
252(3)
9.1.2.3 The Logic of Activity in the Plug-In
255(1)
9.1.3 Jump in the Plug-In
255(1)
9.1.4 Eliminate the Keyword "that"
256(3)
9.1.5 Jump Out
259(2)
9.1.5.1 Preparation for Jumping Out
259(1)
9.1.5.2 Jump to Another Plug-In
260(1)
9.1.5.3 Jump to the HostApp
260(1)
9.1.6 Use Interface-Oriented Programming in Static-Proxy
261(6)
9.1.7 Support for LaunchMode
267(4)
9.1.7.1 Overview of LaunchMode
267(2)
9.1.7.2 Plug-In Solutions for LaunchMode
269(2)
9.2 The Plug-In Solution For Service And BroadcastReceiver Based On Static-Proxy
271(34)
9.2.1 Static-Proxy in Service
271(7)
9.2.1.1 Issue 1
276(1)
9.2.1.2 Issue 2
277(1)
9.2.1.3 Issue 3
278(1)
9.2.2 Support bindService()
278(2)
9.2.3 StubService
280(3)
9.2.4 The Last Solution for Service Plug-Ins: Integration with Dynamic-Proxy and Static-Proxy
283(18)
9.2.4.1 Parse Service in the Plug-In
283(2)
9.2.4.2 Create a Service Object Using Reflection
285(2)
9.2.4.3 ProxyService and ServiceManager
287(7)
9.2.4.4 bindService() and unbindService()
294(7)
9.2.5 Static-Proxy in BroadcastReceiver
301(4)
9.3 Summary
305(2)
Chapter 10 Related Plug-In Techniques 307(98)
10.1 Resolve The Conflicts Between Resources Of The Plug-Ins
307(13)
10.1.1 The Process of App Packaging
307(1)
10.1.2 Hook aapt
308(8)
10.1.2.1 Modify and Generate a New aapt Command
308(6)
10.1.2.2 Using This New aapt Command in the Project
314(2)
10.1.3 public.xml
316(2)
10.1.4 Plug-In Uses Resources in the HostApp
318(2)
10.2 A Plug-In Framework Based On Fragment
320(6)
10.2.1 AndroidDynamicLoader Overview
320(1)
10.2.2 A Simple Plug-In Sample Based on Fragment
321(1)
10.2.3 Jumping Between Fragments
322(2)
10.2.4 Jump from the Plug-In
324(2)
10.3 Downgrade
326(15)
10.3.1 From Activity to HTML5
328(6)
10.3.2 From HTML5 to Activity
334(6)
10.3.3 Support for the Backpress Button
340(1)
10.4 ProGuard For Plug-Ins
341(11)
10.4.1 Basic Obfuse Rules for Plug-Ins
341(1)
10.4.2 Obfuse Without a Common Library
342(3)
10.4.3 Obfusing with a Common Library
345(7)
10.4.3.1 Use MultiDex
346(3)
10.4.3.2 Modify the ProGuard File
349(1)
10.4.3.3 Remove Redundant Dexes from plugin1.apk
350(2)
10.5 Incremental Update
352(4)
10.5.1 The Basic Concept of an Incremental Update
352(1)
10.5.2 Create an Incremental Package
353(1)
10.5.3 Apply Permissions
353(1)
10.5.4 Merge Incremental Package
354(2)
10.6 A Plug-In Solution For SO Files
356(17)
10.6.1 Write a Hello-World SO
356(6)
10.6.1.1 Download NDK
356(1)
10.6.1.2 Create a Project to Generate SO
357(5)
10.6.2 Using SO
362(1)
10.6.3 The Principle of Loading SO
363(5)
10.6.3.1 Compiling SO
364(1)
10.6.3.2 The Process of Loading SO
365(1)
10.6.3.3 Two Ways to Load SO
365(3)
10.6.3.4 The Relationship between ClassLoader and SO
368(1)
10.6.4 A Plug-In Solution Based on System.load()
368(4)
10.6.5 An SO Plug-In Solution Based on System.loadLibrary()
372(1)
10.7 Hooking The Packaging Process
373(14)
10.7.1 Gradle Plug-In Project
373(6)
10.7.1.1 Create Gradle Plug-In Project
373(3)
10.7.1.2 Extension
376(1)
10.7.1.3 The Hook App Packaging Process
377(2)
10.7.2 Modify resources.arsc
379(8)
10.7.2.1 How to Find Resources in Android
379(1)
10.7.2.2 Function of aapt
380(1)
10.7.2.3 The Principle of Gradle-Small
380(1)
10.7.2.4 How to Use Gradle-Small
381(1)
10.7.2.5 The Family of Plug-Ins Defined in Gradle-Small
381(4)
10.7.2.6 The Family of Editors Defined in Gradle-Small
385(2)
10.8 Compatibility With Android O and P
387(17)
10.8.1 Compatibility with Android O
388(5)
10.8.1.1 Refactor of AMN
388(2)
10.8.1.2 The Story of Element and DexFile
390(3)
10.8.2 Compatibility with Android P
393(16)
10.8.2.1 The Modification of the Class H
393(8)
10.8.2.2 The Refactoring of the Class Instrumentation
401(3)
10.9 Summary
404(1)
Chapter 11 Summary of Plug-In Technology 405(6)
11.1 Plug-In Engineering
405(1)
11.2 Class Loading In The Plug-In
405(1)
11.3 Which Class Or Interface Can Be Hooked?
406(1)
11.4 A Plug-In Solution For Activity
407(1)
11.5 A Plug-In Solution For Resources
407(1)
11.6 Use Fragment In The Plug-In
408(1)
11.7 Plug-In Solutions For Service, ContentProvider, And BroadcastReceiver
409(1)
11.7.1 A Plug-In Solution for Service
409(1)
11.7.2 A Plug-In Solution for BroadcastReceiver
409(1)
11.7.3 A Plug-In Solution for ContentProvider
410(1)
11.8 Summary
410(1)
Appendix A: Sample Code List 411(4)
Index 415
Jianqiang Bao is a senior Android app developer. For more than 15 years he has developed enterprise solutions using Silverlight, ASP.NET, WP7, Android and iOS. He has worked in HP, Microsoft, Qunar, Tuniu company. He has a technique blog http://www.cnblogs.com/jax, his GitHub is https://github.com/BaoBaoJianqiang.
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