对于热修复无非就是两大类,一类是tencent代表的classloader模式的,另一类是阿里系代表的底层方面替换。
下面以本人的经验介绍下微信的tinker接入:
命令行接入方式; gradle接入方式
1. 核心库引入,在你应用的app模块下build.gradle文件加入
//tinker hotfix //可选,用于生成application类// compileOnly("com.tencent.tinker:tinker-android-anno:${TINKER_VERSION}") //tinker's main Android lib implementation "com.tencent.tinker:tinker-android-lib:${TINKER_VERSION}"如果应用开启了multiDex(一般应用都会用到),还必须加入如下配置
defaultConfig { ... ... multiDexEnabled true //必须打入第一个dex包的java类 multiDexKeepProguard file("tinker_multidexkeep.pro") }当然其实上述采用的是proguard方式加入到Main dex中,当然也可以采用multiDexKeepFile方式(一行一个类形式)主要目的就是确保tinker的包中类分到第一个dex中,具体可以参考:https://juejin.im/entry/5893e54f128fe100654763a0https://www.kancloud.cn/alex_wsc/artist/481985、https://blog.csdn.net/zhangbuzhangbu/article/details/52770939
其实关于分包模式的问题,可以参考我的一片博文: https://www.cnblogs.com/linghu-java/p/10983671.htmlhttps://www.kancloud.cn/alex_wsc/android_plugin/481528
2、一般应用的application都有很多特殊的初始化和配置的内容,所以这里不打算使用注解生成application的方式,而是自己加入tinker的内容。 明文写出Application的构造函数,在里面调用super类TinkerApplication的构造函数
public class WishApplication extends TinkerApplication {
public WishApplication(){ super(//tinkerFlags, which types is supported dex only, library only, all support ShareConstants.TINKER_ENABLE_ALL, // This is passed as a string so the shell application does not // have a binary dependency on your ApplicationLifeCycle class. "com.yunzhiyuan100.wish.SimpleApplicationLike");
}
}如果本来extends MultiApplictiaon的话就要换成 extends TinkerApplication了,然后重写attachBaseContext()方法,在该方法里加入MultiDex的内容。如下protected void attachBaseContext(Context base) {
super.attachBaseContext(base); MultiDex.install(this);}然后就是你原来Application的代码逻辑的内容,可以不用变动3. 然后自定义Application中初始化函数用到ApplicationLike类参数实例,可以直接按照tinker给的代码拷贝
1 public class SimpleApplicationLike extends ApplicationLike {
2
3 public SimpleApplicationLike(Application application, int tinkerFlags, boolean tinkerLoadVerifyFlag,
4 long applicationStartElapsedTime, long applicationStartMillisTime, Intent tinkerResultIntent) {
5 super(application, tinkerFlags, tinkerLoadVerifyFlag, applicationStartElapsedTime, applicationStartMillisTime, tinkerResultIntent);
6 }
7
8 @Override
9 public void onBaseContextAttached(Context base) {
10 super.onBaseContextAttached(base);
11
12 }
13 @Override
14 public void onCreate() {
15 super.onCreate();
16 TinkerInstaller.install(this);
17 }
18
19 @TargetApi(Build.VERSION_CODES.ICE_CREAM_SANDWICH)
20 public void registerActivityLifecycleCallbacks(Application.ActivityLifecycleCallbacks callback) {
21 getApplication().registerActivityLifecycleCallbacks(callback);
22 }
23
24 }
4. proguard改变
1 #your dex.loader pattern here
2 -keep class com.tencent.tinker.loader.**
3 #注意 AndroidManifest.xml中的applicaion
4 -keep class com.yunzhiyuan100.wish.WishApplication
5
6 # ***************** Tinker patch包
7 # 打替换apk包的时候需要
8 -applymapping mapping.txt
然后就可以打包了,打old.apk的时候自动生成mapping.txt, 第二次打new.apk包的时候为了保持混淆的一致性,要使用第一混淆的时候的mapping文件,
-applymapping mapping.txt
5. AndroidManifest修改,application标签下面加入
1 <meta-data
2 android:name="TINKER_ID"
3 android:value="20190604" />
6.下载Thinker的项目
tinker提供了patch生成的工具,源码见:tinker-patch-cli,打成一个jar就可以使用,并且提供了命令行相关的参数以及文件。
tinker的项目地址: https://github.com/Tencent/tinker
然后通过android studio打开整个项目
(1). 在控制台输入:./gradlew buildTinkerSdk (window上gradlew buildTinkerSdk)
在指定路径看到生成的文件之后,将刚才生成的old.apk和new.apk拷贝进去。
(2). 修改tinker_config.xml
loader修改成自己的application
<issue id="dex">
<!--only can be 'raw' or 'jar'. for raw, we would keep its original format-->
<!--for jar, we would repack dexes with zip format.-->
<!--if you want to support below 14, you must use jar-->
<!--or you want to save rom or check quicker, you can use raw mode also-->
<dexMode value="jar"/>
<!--what dexes in apk are expected to deal with tinkerPatch-->
<!--it support * or ? pattern.-->
<pattern value="classes*.dex"/>
<pattern value="assets/secondary-dex-?.jar"/>
<!--Warning, it is very very important, loader classes can't change with patch.-->
<!--thus, they will be removed from patch dexes.-->
<!--you must put the following class into main dex.-->
<!--Simply, you should add your own application {@code tinker.sample.android.SampleApplication}-->
<!--own tinkerLoader {@code SampleTinkerLoader}, and the classes you use in them-->
<loader value="com.tencent.tinker.loader.*"/>
<loader value="com.yunzhiyuan100.wish.WishApplication"/>
</issue>
另外,如果是正式包,需要修改签名配置为你项目的签名,还需要把签名文件yunzhiyuan.jks放到buildSDK的目录build下面
<!--sign, if you want to sign the apk, and if you want to use 7zip, you must fill in the following data-->
<issue id="sign">
<!--the signature file path, in window use \, in linux use /, and the default path is the running location-->
<path value="yunzhiyuan.jks"/>
<!--storepass-->
<storepass value="bgsb1709@hzyzy"/>
<!--keypass-->
<keypass value="bgsb1709@hzyzy"/>
<!--alias-->
<alias value="wish"/>
</issue>
(3)最后就可以执行patch命令打出差异包了
命令行如下:
java -jar tinker-patch-cli-1.9.13.jar -old old.apk -new new.apk -config tinker_config.xml -out output
注意tinker-patch-cli这个jar包的名字要和buildSdk/build/目录下的该jar包版本名称一致
把打出来的差异包adb push 到sdcard目录下: adb push patch_sign.apk /sdcard/
然后在MainActivity中加载差异包,通过加入一个按钮的点击调用下面的loadFix()函数
1 public void loadFix(){
2 TinkerInstaller.onReceiveUpgradePatch(getApplicationContext(),
3 Environment.getExternalStorageDirectory().getAbsolutePath() + "/patch_signed.apk");
4 }
这里调用loadFix()之后,应用会被关闭,再次打开,测试得到想要的修改结果。
大功告成了
参考:
https://blog.csdn.net/YANGDAHUAN/article/details/81021801
https://blog.csdn.net/lmj623565791/article/details/54882693
https://github.com/Tencent/tinker
https://github.com/Tencent/tinker/wiki/Tinker-%E6%8E%A5%E5%85%A5%E6%8C%87%E5%8D%97