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Title: GitHub - vnote/Android_QA: Android 面试、笔试题集锦（赋答案，持续更新 ing~） · GitHub

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Description: Android 面试、笔试题集锦（赋答案，持续更新 ing~）. Contribute to vnote/Android_QA development by creating an account on GitHub.

Open Graph Description: Android 面试、笔试题集锦（赋答案，持续更新 ing~）. Contribute to vnote/Android_QA development by creating an account on GitHub.

X Description: Android 面试、笔试题集锦（赋答案，持续更新 ing~）. Contribute to vnote/Android_QA development by creating an account on GitHub.

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https://github.com/vnote/Android_QA#android_qa
https://github.com/vnote/Android_QA#java-部分一基础知识点
Java中 == 和 equals 和 hashCode 的区别https://github.com/Omooo/Android_QA/blob/master/Answer.md#java_base_1
int、char、long 各占多少字节数https://github.com/Omooo/Android_QA/blob/master/Answer.md#java_base_2
int 和 Integer 的区别https://github.com/Omooo/Android_QA/blob/master/Answer.md#java_base_3
谈谈对Java多态的理解https://github.com/Omooo/Android_QA/blob/master/Answer.md#java_base_4
String、StringBuffer、StringBuilder的区别https://github.com/Omooo/Android_QA/blob/master/Answer.md#java_base_5
什么是内部类？内部类的作用https://github.com/Omooo/Android_QA/blob/master/Answer.md#java_base_6
抽象类和接口的区别https://github.com/Omooo/Android_QA/blob/master/Answer.md#java_base_7
抽象类的意义https://github.com/Omooo/Android_QA/blob/master/Answer.md#java_base_8
抽象类与接口的应用场景https://github.com/Omooo/Android_QA/blob/master/Answer.md#java_base_9
抽象类是否可以没有方法和属性？https://github.com/Omooo/Android_QA/blob/master/Answer.md#java_base_10
接口的意义https://github.com/Omooo/Android_QA/blob/master/Answer.md#java_base_11
泛型中的extends和super的区别https://github.com/Omooo/Android_QA/blob/master/Answer.md#java_base_12
父类的静态方法能否被子类重写？https://github.com/Omooo/Android_QA/blob/master/Answer.md#java_base_13
进程和线程的区别https://github.com/Omooo/Android_QA/blob/master/Answer.md#java_base_14
final、finally、finalize的区别https://github.com/Omooo/Android_QA/blob/master/Answer.md#java_base_15
序列化的方式https://github.com/Omooo/Android_QA/blob/master/Answer.md#java_base_16
Serializable 和 Parcelable 的区别https://github.com/Omooo/Android_QA/blob/master/Answer.md#java_base_17
静态属性和静态方法是否可以被继承？是否可以被重写？以及原因。https://github.com/Omooo/Android_QA/blob/master/Answer.md#java_base_18
静态内部类的设计意图https://github.com/Omooo/Android_QA/blob/master/Answer.md#java_base_19
成员内部类、静态内部类、方法内部类（局部内部类）和匿名内部类的理解，以及项目中的应用https://github.com/Omooo/Android_QA/blob/master/Answer.md#java_base_20
谈谈对kotlin的理解https://github.com/Omooo/Android_QA/blob/master/Answer.md#java_base_21
闭包和局部内部类的区别https://github.com/Omooo/Android_QA/blob/master/Answer.md#java_base_22
String转换成Integer的方式以及原理https://github.com/Omooo/Android_QA/blob/master/Answer.md#java_base_23
面向对象思想https://github.com/Omooo/Android_QA/blob/master/Answer.md#java_base_24
对象拷贝的理解？深拷贝、浅拷贝的区别？https://github.com/Omooo/Android_QA/blob/master/Answer.md#java_base_25
Enumeration 和 Iterator 的区别？https://github.com/Omooo/Android_QA/blob/master/Answer.md#java_base_26
https://github.com/vnote/Android_QA#java-部分二高级知识点
哪些情况下的对象会被垃圾回收机制处理掉？https://github.com/Omooo/Android_QA/blob/master/Answer.md#java_advance_1
讲一下常见的编码方式？https://github.com/Omooo/Android_QA/blob/master/Answer.md#java_advance_2
UTF-8编码中中文占几个字节，int型几个字节？https://github.com/Omooo/Android_QA/blob/master/Answer.md#java_advance_3
静态代理和动态代理的区别，什么场景使用？https://github.com/Omooo/Android_QA/blob/master/Answer.md#java_advance_4
Java的异常体系https://github.com/Omooo/Android_QA/blob/master/Answer.md#java_advance_5
谈谈你对解析与分派的认识https://github.com/Omooo/Android_QA/blob/master/Answer.md#java_advance_6
修改对象A的equals方法的签名，那么使用HashMap存放这个对象实例的时候，会调用哪个equals方法？https://github.com/Omooo/Android_QA/blob/master/Answer.md#java_advance_7
Java中实现多态的机制是什么？https://github.com/Omooo/Android_QA/blob/master/Answer.md#java_advance_8
如何将一个Java对象序列化到文件里？https://github.com/Omooo/Android_QA/blob/master/Answer.md#java_advance_9
说说你对Java反射的理解https://github.com/Omooo/Android_QA/blob/master/Answer.md#java_advance_10
说说你对Java注解的理解https://github.com/Omooo/Android_QA/blob/master/Answer.md#java_advance_11
说说你对依赖注入的理解https://github.com/Omooo/Android_QA/blob/master/Answer.md#java_advance_12
说一下泛型原理，并举例说明https://github.com/Omooo/Android_QA/blob/master/Answer.md#java_advance_13
Java中String的了解https://github.com/Omooo/Android_QA/blob/master/Answer.md#java_advance_14
String为什么要设计成不可变的？https://github.com/Omooo/Android_QA/blob/master/Answer.md#java_advance_15
Object类的equal和hashCode方法重写，为什么？https://github.com/Omooo/Android_QA/blob/master/Answer.md#java_advance_16
为什么Java里的匿名内部类只能访问final修饰的外部变量？https://github.com/Omooo/Android_QA/blob/master/Answer.md#java_advance_17
Synchronizedhttps://github.com/Omooo/Android_QA/blob/master/Answer.md#java_advance_18
volatilehttps://github.com/Omooo/Android_QA/blob/master/Answer.md#java_advance_19
类加载流程双亲委托机制https://github.com/Omooo/Android_QA/blob/master/Answer.md#java_advance_20
https://github.com/vnote/Android_QA#java-部分三数据结构
常用数据结构简介https://github.com/Omooo/Android_QA/blob/master/Answer.md#java_structure_1
并发集合了解哪些？https://github.com/Omooo/Android_QA/blob/master/Answer.md#java_structure_2
HashMaphttps://github.com/Omooo/Android_QA/blob/master/Answer.md#java_structure_3
https://github.com/vnote/Android_QA#java-部分四线程多线程和线程池
开启线程的三种方式？https://github.com/Omooo/Android_QA/blob/master/Answer.md#java_thread_1
线程和进程的区别？https://github.com/Omooo/Android_QA/blob/master/Answer.md#java_thread_2
为什么要有线程，而不是仅仅用进程？https://github.com/Omooo/Android_QA/blob/master/Answer.md#java_thread_3
run() 和 start() 方法的区别？https://github.com/Omooo/Android_QA/blob/master/Answer.md#java_thread_4
如何控制某个方法允许并发访问线程的个数？https://github.com/Omooo/Android_QA/blob/master/Answer.md#java_thread_5
在 Java 中 wait() 和 sleep() 方法的区别https://github.com/Omooo/Android_QA/blob/master/Answer.md#java_thread_6
谈谈 wait/notify 关键字的理解https://github.com/Omooo/Android_QA/blob/master/Answer.md#java_thread_7
什么导致线程阻塞？https://github.com/Omooo/Android_QA/blob/master/Answer.md#java_thread_8
线程如何关闭？https://github.com/Omooo/Android_QA/blob/master/Answer.md#java_thread_9
讲一下 Java 中的同步的方法https://github.com/Omooo/Android_QA/blob/master/Answer.md#java_thread_10
数据一致性如何保证？https://github.com/Omooo/Android_QA/blob/master/Answer.md#java_thread_11
如何保证线程安全？https://github.com/Omooo/Android_QA/blob/master/Answer.md#java_thread_12
如何实现线程同步？https://github.com/Omooo/Android_QA/blob/master/Answer.md#java_thread_13
两个进程同时要求读写，能不能实现？如何防止进程同步？https://github.com/Omooo/Android_QA/blob/master/Answer.md#java_thread_14
线程间操作 Listhttps://github.com/Omooo/Android_QA/blob/master/Answer.md#java_thread_15
Java 中对象的生命周期https://github.com/Omooo/Android_QA/blob/master/Answer.md#java_thread_16
说说线程池https://github.com/Omooo/Android_QA/blob/master/Answer.md#java_thread_17
并发编程面临的挑战有哪些？https://github.com/Omooo/Android_QA/blob/master/Answer.md#java_thread_18
https://github.com/vnote/Android_QA#android-部分一基础知识点
四大组件是什么？https://github.com/Omooo/Android_QA/blob/master/Answer.md#android_base_1
四大组件的生命周期和简单用法https://github.com/Omooo/Android_QA/blob/master/Answer.md#android_base_2
Context的理解？https://github.com/Omooo/Android_QA/blob/master/Answer.md#android_base_3
AsyncTask详解https://github.com/Omooo/Android_QA/blob/master/Answer.md#android_base_4
Android虚拟机以及编译过程https://github.com/Omooo/Android_QA/blob/master/Answer.md#android_base_5
进程保活方案https://github.com/Omooo/Android_QA/blob/master/Answer.md#android_base_6
Android 消息机制https://github.com/Omooo/Android_QA/blob/master/Answer.md#android_base_7
Window、Activity、DecorView以及ViewRoot之间的关系https://github.com/Omooo/Android_QA/blob/master/Answer.md#android_base_8
Android事件分发机制https://github.com/Omooo/Android_QA/blob/master/Answer.md#android_base_9
dp、sp、px的理解以及相互转换https://github.com/Omooo/Android_QA/blob/master/Answer.md#android_base_10
RelativeLayout和LinearLayout在实现效果同等的情况下使用哪个？为什么？https://github.com/Omooo/Android_QA/blob/master/Answer.md#android_base_11
布局相关的 、 控件作用及实现原理https://github.com/Omooo/Android_QA/blob/master/Answer.md#android_base_12
Fragment详解https://github.com/Omooo/Android_QA/blob/master/Answer.md#android_base_13
Json、XMLhttps://github.com/Omooo/Android_QA/blob/master/Answer.md#android_base_14
Assets目录与res目录的区别https://github.com/Omooo/Android_QA/blob/master/Answer.md#android_base_15
View视图绘制过程原理https://github.com/Omooo/Android_QA/blob/master/Answer.md#android_base_16
解决滑动冲突的方式？https://github.com/Omooo/Android_QA/blob/master/Answer.md#android_base_17
APP Build过程https://github.com/Omooo/Android_QA/blob/master/Answer.md#android_base_18
Android利用scheme协议进行跳转https://github.com/Omooo/Android_QA/blob/master/Answer.md#android_base_19
MVC、MVPhttps://github.com/Omooo/Android_QA/blob/master/Answer.md#android_base_20
SurfaceViewhttps://github.com/Omooo/Android_QA/blob/master/Answer.md#android_base_21
HandlerThreadhttps://github.com/Omooo/Android_QA/blob/master/Answer.md#android_base_22
IntentServicehttps://github.com/Omooo/Android_QA/blob/master/Answer.md#android_base_23
谈谈你对Application类的理解https://github.com/Omooo/Android_QA/blob/master/Answer.md#android_base_24
Android为什么要设计出Bundle而不是直接使用HashMap来进行数据传递？https://github.com/Omooo/Android_QA/blob/master/Answer.md#android_base_25
SharedPreference在使用过程中有什么注意点？https://github.com/Omooo/Android_QA/blob/master/Answer.md#android_base_26
SQLite有哪些可以优化的地方？https://github.com/Omooo/Android_QA/blob/master/Answer.md#android_base_27
嵌滑滑动机制https://github.com/Omooo/Android_QA/blob/master/Answer.md#android_base_28
RecyclerView 优化https://github.com/Omooo/Android_QA/blob/master/Answer.md#android_base_29
https://github.com/vnote/Android_QA#android-部分二高级知识点
Android 系统架构https://github.com/Omooo/Android_QA/blob/master/Answer.md#android_advance_1
Android 各个版本特性https://github.com/Omooo/Android_QA/blob/master/Answer.md#android_advance_2
Android 系统启动流程https://github.com/Omooo/Android_QA/blob/master/Answer.md#android_advance_3
应用程序进程启动过程https://github.com/Omooo/Android_QA/blob/master/Answer.md#android_advance_4
Activity 状态的保存与恢复https://github.com/Omooo/Android_QA/blob/master/Answer.md#android_advance_5
Android 动画框架实现原理https://github.com/Omooo/Android_QA/blob/master/Answer.md#android_advance_6
requestLayout、onLayout、onDraw、drawChild 区别与联系https://github.com/Omooo/Android_QA/blob/master/Answer.md#android_advance_7
requestLayout、invalidate、postInvalidate 的区别https://github.com/Omooo/Android_QA/blob/master/Answer.md#android_advance_8
Activity、Window、View 的区别及联系https://github.com/Omooo/Android_QA/blob/master/Answer.md#android_advance_9
Volley 的理解https://github.com/Omooo/Android_QA/blob/master/Answer.md#android_advance_10
如何优化自定义 Viewhttps://github.com/Omooo/Android_QA/blob/master/Answer.md#android_advance_11
低版本如何实现高版本 APIhttps://github.com/Omooo/Android_QA/blob/master/Answer.md#android_advance_12
描述一次网络请求的过程https://github.com/Omooo/Android_QA/blob/master/Answer.md#android_advance_13
HttpUrlConnection 与 OkHttp 的关系https://github.com/Omooo/Android_QA/blob/master/Answer.md#android_advance_14
Bitmap 的理解https://github.com/Omooo/Android_QA/blob/master/Answer.md#android_advance_15
Looper 架构https://github.com/Omooo/Android_QA/blob/master/Answer.md#android_advance_16
ActivityThread 的工作原理https://github.com/Omooo/Android_QA/blob/master/Answer.md#android_advance_17
AMS 的工作原理https://github.com/Omooo/Android_QA/blob/master/Answer.md#android_advance_18
WMS 的工作原理https://github.com/Omooo/Android_QA/blob/master/Answer.md#android_advance_19
自定义 View 如何考虑机型适配https://github.com/Omooo/Android_QA/blob/master/Answer.md#android_advance_20
自定义 View 的事件https://github.com/Omooo/Android_QA/blob/master/Answer.md#android_advance_21
LaunchMode 应用场景https://github.com/Omooo/Android_QA/blob/master/Answer.md#android_advance_22
SpareArray 原理https://github.com/Omooo/Android_QA/blob/master/Answer.md#android_advance_23
ContentProvider 是如何实现数据共享的https://github.com/Omooo/Android_QA/blob/master/Answer.md#android_advance_24
Service 与 Activity 的通信方式https://github.com/Omooo/Android_QA/blob/master/Answer.md#android_advance_25
IntentService 原理与作用https://github.com/Omooo/Android_QA/blob/master/Answer.md#android_advance_26
ApplicationContext 与 ActivityContext 的区别https://github.com/Omooo/Android_QA/blob/master/Answer.md#android_advance_27
SP 是进程同步的嘛？如何做到进程同步？https://github.com/Omooo/Android_QA/blob/master/Answer.md#android_advance_28
谈谈多线程在 Android 中的使用https://github.com/Omooo/Android_QA/blob/master/Answer.md#android_advance_29
进程和 Application 的生命周期https://github.com/Omooo/Android_QA/blob/master/Answer.md#android_advance_30
封装 View 时候这么知道 View 的大小？https://github.com/Omooo/Android_QA/blob/master/Answer.md#android_advance_31
RecycleView 原理https://github.com/Omooo/Android_QA/blob/master/Answer.md#android_advance_32
AndroidManifest 的作用和理解https://github.com/Omooo/Android_QA/blob/master/Answer.md#android_advance_33
Touch 事件流程https://github.com/Omooo/Android_QA/blob/master/Answer.md#android_advance_34
时间分发中的 onTouch 和 onTouchEvent 有什么区别？https://github.com/Omooo/Android_QA/blob/master/Answer.md#android_advance_35
View 和 ViewGroup 分别有哪些与事件分发有关的回掉方法https://github.com/Omooo/Android_QA/blob/master/Answer.md#android_advance_36
View 的刷新机制https://github.com/Omooo/Android_QA/blob/master/Answer.md#android_advance_37
View 的绘制流程https://github.com/Omooo/Android_QA/blob/master/Answer.md#android_advance_38
自定义控件原理？https://github.com/Omooo/Android_QA/blob/master/Answer.md#android_advance_39
为什么不能在子线程更新 UI？https://github.com/Omooo/Android_QA/blob/master/Answer.md#android_advance_40
ANR 产生原因是什么？如何定位和修正？https://github.com/Omooo/Android_QA/blob/master/Answer.md#android_advance_41
什么情况下会导致 OOM，如何避免？https://github.com/Omooo/Android_QA/blob/master/Answer.md#android_advance_42
OOM 是否可以 try-catchhttps://github.com/Omooo/Android_QA/blob/master/Answer.md#android_advance_43
内存泄露发生的情况？如何避免https://github.com/Omooo/Android_QA/blob/master/Answer.md#android_advance_44
LruCache 默认缓存大小？https://github.com/Omooo/Android_QA/blob/master/Answer.md#android_advance_45
ContentProvider 的权限管理https://github.com/Omooo/Android_QA/blob/master/Answer.md#android_advance_46
如何通过广播拦截一条短信https://github.com/Omooo/Android_QA/blob/master/Answer.md#android_advance_47
广播是否可以请求网络？https://github.com/Omooo/Android_QA/blob/master/Answer.md#android_advance_48
计算一个 View 的嵌套层级？https://github.com/Omooo/Android_QA/blob/master/Answer.md#android_advance_49
Activity 栈https://github.com/Omooo/Android_QA/blob/master/Answer.md#android_advance_50
Android 线程有没有限制？https://github.com/Omooo/Android_QA/blob/master/Answer.md#android_advance_51
线程池有没有上限？https://github.com/Omooo/Android_QA/blob/master/Answer.md#android_advance_52
有没有尝试简化 Parcelable 的使用？https://github.com/Omooo/Android_QA/blob/master/Answer.md#android_advance_53
https://github.com/vnote/Android_QA#数据结构
线性表https://github.com/vnote/Android_QA/blob/master
https://github.com/vnote/Android_QA#计算机网络
TCP 和 UDP 的区别https://github.com/Omooo/Android_QA/blob/master/Answer.md#net_1
Http1.1和Http1.0及2.0的区别https://github.com/Omooo/Android_QA/blob/master/Answer.md#net_2
DNS解析过程https://github.com/Omooo/Android_QA/blob/master/Answer.md#net_3
HTTP请求报文和响应报文https://github.com/Omooo/Android_QA/blob/master/Answer.md#net_4
简述HTTPhttps://github.com/Omooo/Android_QA/blob/master/Answer.md#net_5
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