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google官方提供Android Api使用示例，堪称Android最好学习资料

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apidemos's Introduction

google官方ApiDemo——完善的Android学习资

基于Android系统源码6.0的ApiDemos，使用Android Studio构建，compileSdkVersion 23，buildToolsVersion "23.0.3"，支持 InstantRun

ApiDemo非常全面的介绍了Android开发中常见的Api使用方式。比如Activity、Fragment、Animation、Dialog、OS、Notification、多媒体、图片绘制、NFC、各种view等等，可谓一应俱全！在阅读源代码过程中，我遇到了很多晦涩难懂的地方。我希望将不明白的地方加上注释，便于在重温的过程中更快找回当时的感觉。我还记得我的初衷是该project的边边角角吃透，写出注释，很久以后当我再次看到这段代码的时候，我能很快知道他是干什么的，我也希望将我的阅读分享出来，供大家批评指正。当然，我更希望越来越多的人加入到这个“阅读”工作中来，添加上你的“阅读心得”，形成一本比较完整的“源代码”教科书。如下是APIDemo部分截图

主界面

Animation

主要演示了属性动画的特点和使用方法。

App

展示了包括ActionBar、Activity、对话框、fragment、serivice、notification、menue等常见类的使用方法。每一行里面又包含了很多更细节的东西。

Content

主要介绍了Assets、ClipBoard、Packages、Provider和Storage等的使用方法。

Graphics

主要介绍了Canvas、Bitmap、Paint等绘图工具的使用，想了解怎么在canvas上绘制文字、图形等…想要写出优秀的自定义控件的…本章的学习必不可少！

Media

多媒体相关的介绍。

NFC

NFC开发也是越来越流行的，这里应该有你想要的。

OS

主要介绍了Morse Code、Rotation Vector、Sensors和SMS Messaging。

Preference

Android一大重要的持久化存储方式——Preference，本章的介绍非常丰富，几乎涵盖所有。

Text

主要介绍了Linkify、LogTextBox、Marquee的使用方式。

Views

Android原生View的介绍，包括常见的动画、拖拽等操作，常见的Widget的使用方法等。在Android的基础开发中，90%都在和各种各样的View打交道，因此学会这一章所有控件的使用，Android开发基本就入门了！

总结

read the fuck source code！

                  ——linus

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apidemos's Issues

这个是基于那个版本的apiDemos ，不同的api 版本，apidemos 是否有较大的差别？

如何根据界面找到对应的Activity

在这个apiDemo中可以做到根据界面找到对应的Activity ?你在学习过程中是如何找到界面对应的Activity的呢?

这个项目目前还在维护吗?

觉得非常不错,想加入进来哦

app启动后闪退,然后抛出TransactionTooLargeException异常.楼主有遇到过同样问题吗?

07-01 12:53:54.463 13027-13027/? I/art: Late-enabling -Xcheck:jni 07-01 12:53:54.492 13027-13027/? D/TidaProvider: TidaProvider() 07-01 12:53:54.532 13027-13027/com.example.android.apis V/SettingsInterface: invalidate [system]: current 912 != cached 0 07-01 12:53:54.533 13027-13027/com.example.android.apis D/ActivityThread: hoder:android.app.IActivityManager$ContentProviderHolder@3eba0787,provider,holder.Provider:android.content.ContentProviderProxy@3cea86b4 07-01 12:53:54.662 13027-13027/com.example.android.apis I/art: Open dexFile: /data/app/com.example.android.apis-1/split_lib_dependencies_apk.apk, Fallback to original dex file with InterpretOnly 07-01 12:53:54.670 13027-13027/com.example.android.apis I/art: Open dexFile: /data/app/com.example.android.apis-1/split_lib_slice_0_apk.apk, Fallback to original dex file with InterpretOnly 07-01 12:53:54.739 13027-13027/com.example.android.apis I/art: Open dexFile: /data/app/com.example.android.apis-1/split_lib_slice_1_apk.apk, Fallback to original dex file with InterpretOnly 07-01 12:53:54.748 13027-13027/com.example.android.apis I/art: Open dexFile: /data/app/com.example.android.apis-1/split_lib_slice_2_apk.apk, Fallback to original dex file with InterpretOnly 07-01 12:53:54.754 13027-13027/com.example.android.apis I/art: Open dexFile: /data/app/com.example.android.apis-1/split_lib_slice_3_apk.apk, Fallback to original dex file with InterpretOnly 07-01 12:53:54.762 13027-13027/com.example.android.apis I/art: Open dexFile: /data/app/com.example.android.apis-1/split_lib_slice_4_apk.apk, Fallback to original dex file with InterpretOnly 07-01 12:53:54.772 13027-13027/com.example.android.apis I/art: Open dexFile: /data/app/com.example.android.apis-1/split_lib_slice_5_apk.apk, Fallback to original dex file with InterpretOnly 07-01 12:53:54.788 13027-13027/com.example.android.apis I/art: Open dexFile: /data/app/com.example.android.apis-1/split_lib_slice_6_apk.apk, Fallback to original dex file with InterpretOnly 07-01 12:53:54.790 13027-13027/com.example.android.apis I/art: Open dexFile: /data/app/com.example.android.apis-1/split_lib_slice_7_apk.apk, Fallback to original dex file with InterpretOnly 07-01 12:53:54.791 13027-13027/com.example.android.apis I/art: Open dexFile: /data/app/com.example.android.apis-1/split_lib_slice_8_apk.apk, Fallback to original dex file with InterpretOnly 07-01 12:53:54.817 13027-13027/com.example.android.apis I/art: Open dexFile: /data/app/com.example.android.apis-1/split_lib_slice_9_apk.apk, Fallback to original dex file with InterpretOnly 07-01 12:53:54.825 13027-13027/com.example.android.apis D/ActivityThread: installProvider: context.getPackageName()=com.example.android.apis 07-01 12:53:54.830 13027-13027/com.example.android.apis D/ActivityThread: installProvider: context.getPackageName()=com.example.android.apis 07-01 12:53:54.834 13027-13027/com.example.android.apis D/ActivityThread: installProvider: context.getPackageName()=com.example.android.apis 07-01 12:53:54.837 13027-13027/com.example.android.apis I/InstantRun: starting instant run server: is main process 07-01 12:53:54.839 13027-13027/com.example.android.apis D/ActivityThread: installProvider: context.getPackageName()=com.example.android.apis 07-01 12:53:54.842 13027-13027/com.example.android.apis D/ActivityThread: installProvider: context.getPackageName()=com.example.android.apis 07-01 12:53:54.869 13027-13027/com.example.android.apis V/ActivityThread: Handling launch of ActivityRecord{1832607f token=android.os.BinderProxy@813f84c {com.example.android.apis/com.example.android.apis.ApiDemos}} 07-01 12:53:54.887 13027-13027/com.example.android.apis V/ActivityThread: ActivityRecord{1832607f token=android.os.BinderProxy@813f84c {com.example.android.apis/com.example.android.apis.ApiDemos}}: app=com.example.android.apis.ApiDemosApplication@1f82a5aa, appName=com.example.android.apis, pkg=com.example.android.apis, comp={com.example.android.apis/com.example.android.apis.ApiDemos}, dir=/data/app/com.example.android.apis-1/base.apk 07-01 12:53:54.908 13027-13027/com.example.android.apis D/ApiDemos: ╔════════════════════════════════════════════════════════════════════════════════════════ 07-01 12:53:54.909 13027-13027/com.example.android.apis D/ApiDemos: ║ Thread: main 07-01 12:53:54.909 13027-13027/com.example.android.apis D/ApiDemos: ╟──────────────────────────────────────────────────────────────────────────────────────── 07-01 12:53:54.909 13027-13027/com.example.android.apis D/ApiDemos: ║ Activity.performCreate (Activity.java:6034) 07-01 12:53:54.909 13027-13027/com.example.android.apis D/ApiDemos: ║ ApiDemos.onCreate (ApiDemos.java:49) 07-01 12:53:54.909 13027-13027/com.example.android.apis D/ApiDemos: ╟──────────────────────────────────────────────────────────────────────────────────────── 07-01 12:53:54.909 13027-13027/com.example.android.apis D/ApiDemos: ║ apidemos onCreate path == 07-01 12:53:54.909 13027-13027/com.example.android.apis D/ApiDemos: ╚════════════════════════════════════════════════════════════════════════════════════════ 07-01 12:53:54.911 13027-13189/com.example.android.apis W/ResourcesManager: Asset path '/system/framework/gson.jar' does not exist or contains no resources. 07-01 12:53:54.911 13027-13189/com.example.android.apis W/ResourcesManager: Asset path '/system/framework/volley.jar' does not exist or contains no resources. 07-01 12:53:54.941 13027-13027/com.example.android.apis E/JavaBinder: !!! FAILED BINDER TRANSACTION !!! 07-01 12:53:54.941 13027-13027/com.example.android.apis D/AndroidRuntime: Shutting down VM 07-01 12:53:54.942 13027-13027/com.example.android.apis E/AndroidRuntime: FATAL EXCEPTION: main Process: com.example.android.apis, PID: 13027 java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.android.apis/com.example.android.apis.ApiDemos}: java.lang.RuntimeException: Package manager has died at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2470) at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2532) at android.app.ActivityThread.access$900(ActivityThread.java:169) at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1421) at android.os.Handler.dispatchMessage(Handler.java:111) at android.os.Looper.loop(Looper.java:194) at android.app.ActivityThread.main(ActivityThread.java:5562) at java.lang.reflect.Method.invoke(Native Method) at java.lang.reflect.Method.invoke(Method.java:372) at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:968) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:763) Caused by: java.lang.RuntimeException: Package manager has died at android.app.ApplicationPackageManager.queryIntentActivitiesAsUser(ApplicationPackageManager.java:576) at android.app.ApplicationPackageManager.queryIntentActivities(ApplicationPackageManager.java:562) at com.example.android.apis.ApiDemos.getData(ApiDemos.java:72) at com.example.android.apis.ApiDemos.onCreate(ApiDemos.java:51) at android.app.Activity.performCreate(Activity.java:6034) at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1111) at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2423) at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2532) at android.app.ActivityThread.access$900(ActivityThread.java:169) at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1421) at android.os.Handler.dispatchMessage(Handler.java:111) at android.os.Looper.loop(Looper.java:194) at android.app.ActivityThread.main(ActivityThread.java:5562) at java.lang.reflect.Method.invoke(Native Method) at java.lang.reflect.Method.invoke(Method.java:372) at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:968) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:763) Caused by: android.os.TransactionTooLargeException at android.os.BinderProxy.transactNative(Native Method) at android.os.BinderProxy.transact(Binder.java:504) at android.content.pm.IPackageManager$Stub$Proxy.queryIntentActivities(IPackageManager.java:2514) at android.app.ApplicationPackageManager.queryIntentActivitiesAsUser(ApplicationPackageManager.java:570) at android.app.ApplicationPackageManager.queryIntentActivities(ApplicationPackageManager.java:562) at com.example.android.apis.ApiDemos.getData(ApiDemos.java:72) at com.example.android.apis.ApiDemos.onCreate(ApiDemos.java:51) at android.app.Activity.performCreate(Activity.java:6034) at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1111) at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2423) at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2532) at android.app.ActivityThread.access$900(ActivityThread.java:169) at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1421) at android.os.Handler.dispatchMessage(Handler.java:111) at android.os.Looper.loop(Looper.java:194) at android.app.ActivityThread.main(ActivityThread.java:5562) at java.lang.reflect.Method.invoke(Native Method) at java.lang.reflect.Method.invoke(Method.java:372) at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:968) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:763) 07-01 12:53:54.951 13027-13027/com.example.android.apis I/Process: Sending signal. PID: 13027 SIG: 9

博主你好，我clone下你的工程，构建不成功

Gradle sync failed: Another 'refresh project' task is currently running for the project: D:\GitRespo\ApiDemos
Consult IDE log for more details (Help | Show Log) (31ms)

gradle改成离线模式也构建不成功

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