量变->质变

Tinker热修复

Sophix,Tinker简介：

https://www.cnblogs.com/ldq2016/p/10449433.html

Tinker：

安装过程 https://blog.csdn.net/qq_22393017/article/details/82110343

Tinker和QQ空间方案最大的不同是，Tinker 下发新旧DEX的差异包，然后将差异包和旧包合成新dex之后进行dex的全量替换，这样也就避免了QQ空间中的插桩操作。以上就是tinker热修复中代码加载实现的原理了。

https://zhuanlan.zhihu.com/p/54781576

Tinker的热修复使用了ClassCloader的类加载机制，将修复的类放到dex 数组的前面

整个流程主要包含两部分： patch的合成（UpgradePatch.java）以及 Patch的安装（TinkerLoader.java)两部分，

TinkerDexLoader：负责加载dex，将修复的类放到dex 数组的前面

TinkerResourceLoader: 负责加载resource，反射调用AssetManager的addAssetPath，添加资源apk（resource.apk）

TinkerSoLoader: 负责加载so

patch的合成过程：https://yuqirong.me/2019/03/14/Tinker%E6%BA%90%E7%A0%81%E5%88%86%E6%9E%90(%E5%85%AD)/

收到Patch,启动TinkerPatchService（本质是一个IntentService),进行Patch的检验，合成，通过patch的MD5作为当前patch的version,如果version一致，则patch无变化，不需要合成

app进程启动时，通过TinkerLoader的tryLoad 加载已合成后的patch

tinker接入事项：

1 在gradle.property中配置如下：
#设为true，才可以执行patch打包,需要关闭instant run，默认打包时，需要更改 TINKER_ENABLE = false
TINKER_ENABLE = true
# VERSION_CODE 用于设置打基准包的版本号，每次打patch，需要根据当前的版本有必要的进行修改
VERSION_CODE = 220900

3 执行相应环境的tinkerPatch task,比如tinkerPatchDongmanQaforservice,patch生成目录为
app/build/outputs/tinkerPatch/dongman/当前环境/patch_signed_7zip.apk

4 tinker针对多一个base apk，可以多次修复，这需要保证base apk的 tinkerId一致,同时需要改tinker.gradle中的patchVersion的版本

5 tinker支持新增activity

tinker内部配置：

1 默认最大重试加载patch次数 5次，定义在UpgradePatchRetry.java

2 如果app冷启动时，联系发生3次crash,从app启动到crash时间小于10ms，tinker会清除patch。

逻辑定义在SampleUncaughtExceptionHandler.java

3 TinkerPatchListener 用来检查patch的合法性

4 TinkerPatchReporter 用来上报patch的解析过程中的每个阶段的状态

5 TinkerUpgradePatch 真正用来patch加载的过程

6 加载过程中的ErrorCode可参见 ShareConstants.java

参见ShareTinkerInternals.java 中的  checkSignatureAndTinkerID()


7 tinker针对多一个base apk，可以多次修复，这需要保证base apk的 tinkerId一致,同时需要求改tinker.gradle中的patchVersion的版本

8 tinker支持新增activity,采用了插件化原理，在androidManifest.xml 中插入坑位，startActivity时，用代理activity来启动新增的activity

原理可见：ComponentHotplug.java(hook AMS,) IncrementComponentManager.java (保存新增Patch的activity)

AMSInterceptHandler.java(拦截启动，用代理替换),MHMessageHandler（启动真正的targetActivity）,PMSInterceptHandler.java(hook了PMS)


测试方面： 多机型（三星，华为，小米，oppo,vivio 测试），多个Android平台（android 4.2,5.0,6.0,7.0,8.0,9.0）

待确认： 目前没有开启加固模式，在360的加密渠道包上，能否修复成功?

从Android 9开始，华为9.0(PAR-AL00)手机，tinker可正常修复

tinker patch加载步骤：

第一次启动 1 解析patch,获取diffDex，2 dex 优化

日志如下：

(standard input):42473:09-16 16:30:33.512 2761 2761 D TinkerPatchUtils: path: /storage/emulated/0/patch_signed_7zip.apk exsit

(standard input):42477:09-16 16:30:33.512 2761 2761 D TinkerPatchUtils: can read: true , size: 17763

(standard input):42481:09-16 16:30:33.515 2761 2761 D TinkerPatchUtils: path: /data/user/0/com.naver.linewebtoon.cn/tinker/patch_signed_7zip.apk exsit

(standard input):42485:09-16 16:30:33.515 2761 2761 D TinkerPatchUtils: can read: true , size: 17763

(standard input):42489:09-16 16:30:33.516 2761 2761 D Tinker.TinkerPatchListener: onLoadInterpret path=/data/user/0/com.naver.linewebtoon.cn/tinker/patch_signed_7zip.apk

(standard input):42493:09-16 16:30:33.516 2761 2761 I Tinker.TinkerPatchListener: receive a patch file: /data/user/0/com.naver.linewebtoon.cn/tinker/patch_signed_7zip.apk, file size:17763

(standard input):42506:09-16 16:30:33.539 2761 2761 W Tinker.UpgradePatchRetry: onPatchListenerCheck retry file is not exist, just return

(standard input):42507:09-16 16:30:33.539 2761 2761 D Tinker.TinkerPatchListener: checkForPatchRecover returnCode=0

(standard input):42508:09-16 16:30:33.541 2761 2761 D Tinker.TinkerPatchListener: get platform:all

(standard input):42611:09-16 16:30:33.651 3487 3487 W Tinker.TinkerLoader: tryLoadPatchFiles: we don't load patch with :patch process itself, just return

(standard input):42652:09-16 16:30:33.664 3487 3487 D Tinker.DefaultAppLike: onBaseContextAttached:

(standard input):42660:09-16 16:30:33.671 3487 3487 I Tinker.TinkerPatchListener: application maxMemory:256

(standard input):42664:09-16 16:30:33.675 3487 3487 W Tinker.Tinker: tinker patch directory: /data/user/0/com.naver.linewebtoon.cn/tinker

(standard input):42668:09-16 16:30:33.676 3487 3487 I Tinker.Tinker: try to install tinker, isEnable: true, version: 1.9.2

(standard input):42672:09-16 16:30:33.679 3487 3487 I Tinker.TinkerLoadResult: parseTinkerResult loadCode:-1, process name:com.naver.linewebtoon.cn:patch, main process:false, systemOTA:false, fingerPrint:Xiaomi/sagit/sagit:8.0.0/OPR1.170623.027/8.7.5:user/release-keys, oatDir:null, useInterpretMode:false

(standard input):42676:09-16 16:30:33.679 3487 3487 W Tinker.TinkerLoadResult: tinker is disable, just return

(standard input):42680:09-16 16:30:33.679 3487 3487 I Tinker.DefaultLoadReporter: patch loadReporter onLoadResult: patch load result, path:/data/user/0/com.naver.linewebtoon.cn/tinker, code: -1, cost: 2ms

(standard input):42684:09-16 16:30:33.680 3487 3487 D Tinker.TinkerLoadReporter: onLoadResult loadCode=-1

(standard input):42688:09-16 16:30:33.680 3487 3487 W Tinker.Tinker: tinker load fail!

(standard input):42692:09-16 16:30:33.682 3487 3487 I Tinker.ComponentHotplug: method install() is not invoked, ignore ensuring operations.

(standard input):42694:09-16 16:30:33.682 3487 3487 D Tinker.DefaultAppLike: onCreate

(standard input):42698:09-16 16:30:33.686 3487 3515 I Tinker.DefaultPatchReporter: patchReporter onPatchServiceStart: patch service start

(standard input):42702:09-16 16:30:33.687 3487 3487 W Tinker.UpgradePatchRetry: onPatchRetryLoad retry is not main process, just return

(standard input):42754:09-16 16:30:33.702 3487 3515 W Tinker.UpgradePatchRetry: try copy file: /data/user/0/com.naver.linewebtoon.cn/tinker/patch_signed_7zip.apk to /data/user/0/com.naver.linewebtoon.cn/tinker_temp/temp.apk

(standard input):42774:09-16 16:30:33.713 3487 3515 D Tinker.TinkerPatchReporter: onPatchServiceStart ...

(standard input):42779:09-16 16:30:33.714 3487 3515 I Tinker.TinkerPatchService: try to increase patch process priority

(standard input):42791:09-16 16:30:33.800 3487 3515 I Tinker.UpgradePatch: UpgradePatch tryPatch:patchMd5:67ae84e03f4daff9e75b872320e8a770

(standard input):42795:09-16 16:30:33.802 3487 3515 W Tinker.PatchInfo: read property failed, e:java.io.FileNotFoundException: /data/user/0/com.naver.linewebtoon.cn/tinker/patch.info (No such file or directory)

(standard input):42799:09-16 16:30:33.802 3487 3515 W Tinker.PatchInfo: read property failed, e:java.io.FileNotFoundException: /data/user/0/com.naver.linewebtoon.cn/tinker/patch.info (No such file or directory)

(standard input):42803:09-16 16:30:33.802 3487 3515 I Tinker.UpgradePatch: UpgradePatch tryPatch:patchVersionDirectory:/data/user/0/com.naver.linewebtoon.cn/tinker/patch-67ae84e0

(standard input):42807:09-16 16:30:33.804 3487 3515 W Tinker.UpgradePatch: UpgradePatch copy patch file, src file: /data/user/0/com.naver.linewebtoon.cn/tinker/patch_signed_7zip.apk size: 17763, dest file: /data/user/0/com.naver.linewebtoon.cn/tinker/patch-67ae84e0/patch-67ae84e0.apk size:17763

(standard input):42811:09-16 16:30:33.808 3487 3515 I Tinker.DexDiffPatchInternal: try Extracting /data/user/0/com.naver.linewebtoon.cn/tinker/patch-67ae84e0/dex/changed_classes.dex.jar

(standard input):42815:09-16 16:30:33.816 3487 3515 I Tinker.DexDiffPatchInternal: isExtractionSuccessful: true

(standard input):42819:09-16 16:30:33.816 3487 3515 I Tinker.DexDiffPatchInternal: try Extracting /data/user/0/com.naver.linewebtoon.cn/tinker/patch-67ae84e0/dex/test.dex.jar

(standard input):42823:09-16 16:30:33.820 3487 3515 I Tinker.DexDiffPatchInternal: isExtractionSuccessful: true

(standard input):42827:09-16 16:30:33.827 3487 3515 I Tinker.PatchFileUtil: safeDeleteFile, try to delete path: /data/user/0/com.naver.linewebtoon.cn/tinker/patch-67ae84e0/dex/test.dex.jar

(standard input):42831:09-16 16:30:33.828 3487 3515 I Tinker.DexDiffPatchInternal: merge classN dex file /data/user/0/com.naver.linewebtoon.cn/tinker/patch-67ae84e0/dex/tinker_classN.apk, result: true, size: 470, use: 7ms

(standard input):42835:09-16 16:30:33.830 3487 3515 D Tinker.TinkerInternals: getCurrentInstructionSet:arm

(standard input):42839:09-16 16:30:33.831 3487 3515 I Tinker.DexDiffPatchInternal: patch recover, try to optimize dex file count:2, optimizeDexDirectory:/data/user/0/com.naver.linewebtoon.cn/tinker/patch-67ae84e0/odex/

(standard input):42854:09-16 16:30:33.833 3487 3515 I Tinker.DexDiffPatchInternal: start to parallel optimize dex /data/user/0/com.naver.linewebtoon.cn/tinker/patch-67ae84e0/dex/changed_classes.dex.jar, size: 10849

(standard input):42869:09-16 16:30:33.860 3521 3521 I dex2oat : /system/bin/dex2oat --debuggable --debuggable --dex-file=/data/data/com.naver.linewebtoon.cn/tinker/patch-67ae84e0/dex/changed_classes.dex.jar --output-vdex-fd=50 --oat-fd=51 --oat-location=/data/data/com.naver.linewebtoon.cn/tinker/patch-67ae84e0/dex/oat/arm/changed_classes.dex.odex --compiler-filter=quicken

(standard input):42881:09-16 16:30:33.943 3487 3515 I Tinker.DexDiffPatchInternal: success to parallel optimize dex /data/user/0/com.naver.linewebtoon.cn/tinker/patch-67ae84e0/dex/changed_classes.dex.jar, opt file:/data/user/0/com.naver.linewebtoon.cn/tinker/patch-67ae84e0/dex/oat/arm/changed_classes.dex.odex, opt file size: 16808, use time 110

(standard input):42885:09-16 16:30:33.943 3487 3515 I Tinker.DexDiffPatchInternal: start to parallel optimize dex /data/user/0/com.naver.linewebtoon.cn/tinker/patch-67ae84e0/dex/tinker_classN.apk, size: 470

(standard input):42895:09-16 16:30:33.990 3539 3539 I dex2oat : /system/bin/dex2oat --debuggable --debuggable --dex-file=/data/data/com.naver.linewebtoon.cn/tinker/patch-67ae84e0/dex/tinker_classN.apk --output-vdex-fd=50 --oat-fd=51 --oat-location=/data/data/com.naver.linewebtoon.cn/tinker/patch-67ae84e0/dex/oat/arm/tinker_classN.odex --compiler-filter=quicken

(standard input):42909:09-16 16:30:34.068 3487 3515 I Tinker.DexDiffPatchInternal: success to parallel optimize dex /data/user/0/com.naver.linewebtoon.cn/tinker/patch-67ae84e0/dex/tinker_classN.apk, opt file:/data/user/0/com.naver.linewebtoon.cn/tinker/patch-67ae84e0/dex/oat/arm/tinker_classN.odex, opt file size: 16808, use time 124

(standard input):42910:09-16 16:30:34.068 3487 3515 I Tinker.DexDiffPatchInternal: recover dex result:true, cost:263

(standard input):42911:09-16 16:30:34.068 3487 3515 W Tinker.BsDiffPatchInternal: patch recover, library is not contained

(standard input):42912:09-16 16:30:34.070 3487 3515 I Tinker.ResDiffPatchInternal: res dir: /data/user/0/com.naver.linewebtoon.cn/tinker/patch-67ae84e0/res/, meta: resArscMd5:a9d829145135d831eef1d41d4b4d79ee

(standard input):42913:09-16 16:30:34.070 3487 3515 I Tinker.ResDiffPatchInternal: arscBaseCrc:2866433521

(standard input):42914:09-16 16:30:34.070 3487 3515 I Tinker.ResDiffPatchInternal: pattern:resources\.arsc

(standard input):42915:09-16 16:30:34.070 3487 3515 I Tinker.ResDiffPatchInternal: pattern:assets/.*

(standard input):42916:09-16 16:30:34.070 3487 3515 I Tinker.ResDiffPatchInternal: pattern:res/.*

(standard input):42917:09-16 16:30:34.070 3487 3515 I Tinker.ResDiffPatchInternal: addedSet:assets/only_use_to_test_tinker_resource.txt

(standard input):42918:09-16 16:30:34.070 3487 3515 I Tinker.ResDiffPatchInternal: largeModifiedSet:resources.arsc

(standard input):42925:09-16 16:30:34.256 3487 3515 W Tinker.ResDiffPatchInternal: success recover large modify file:/data/user/0/com.naver.linewebtoon.cn/tinker/patch-67ae84e0/res/res_temp/resources.arsc, file size:1124900, use time:183

(standard input):42929:09-16 16:30:34.256 3487 3515 W Tinker.ResDiffPatchInternal: success recover all large modify and store resources use time:186

(standard input):42984:09-16 16:30:35.025 3487 3515 I Tinker.PatchFileUtil: safeDeleteFile, try to delete path: /data/user/0/com.naver.linewebtoon.cn/tinker/patch-67ae84e0/res/res_temp/resources.arsc

(standard input):42985:09-16 16:30:35.026 3487 3515 I Tinker.PatchFileUtil: safeDeleteFile, try to delete path: /data/user/0/com.naver.linewebtoon.cn/tinker/patch-67ae84e0/res/res_temp

(standard input):42986:09-16 16:30:35.041 3487 3515 I Tinker.ResDiffPatchInternal: final new resource file:/data/user/0/com.naver.linewebtoon.cn/tinker/patch-67ae84e0/res/resources.apk, entry count:2336, size:12059197

(standard input):42987:09-16 16:30:35.041 3487 3515 I Tinker.ResDiffPatchInternal: recover resource result:true, cost:972

(standard input):42988:09-16 16:30:35.041 3487 3515 I Tinker.DexDiffPatchInternal: raw dex count: 2, dex opt dex count: 2, final wait times: 16

(standard input):42992:09-16 16:30:35.044 3487 3515 I