话说热修复技术也是个热门技术噢，一直没玩过，现在来写个Demo做个测试吧，选来选去，就选定Tinker啦！
tinker的Github地址：https://github.com/Tencent/tinker
（介绍也挺详细的，认真看看）
emmmm，最好先把示例项目代码下载下来，跑一遍，跑通了，然后参考 tinker-sample-android 代码写好自己的demo，这里下载了整个工程后，打开的时候记得单独导入 tinker-sample-android，然后自己修改点点配置，比如TINKER_ID，打补丁包的时候，修改下 app 中 build.gradle 中的基准包地址什么的，就OK啦。
所以，跟着文档一起吧，开始写个测试demo接入下吧，先新建一个项目TinkerTest 。
首先，在项目的 build.gradle 加入插件 tinker-gradle-plugin 作为依赖，我的项目中代码如下所示：
dependencies {
classpath 'com.android.tools.build:gradle:3.1.3'
classpath "com.tencent.tinker:tinker-patch-gradle-plugin:${TINKER_VERSION}"
// NOTE: Do not place your application dependencies here; they belong
// in the individual module build.gradle files
}
然后，就是 app 模块下的 build.gradle 引入插件，以及添加依赖这类，由于还有tinker的一些其他配置，主要配置详情都是从 tinker-sample-android 配置拷贝来的，不需要更改太多，个别可以根据自己需求来，代码如下：
apply plugin: 'com.android.application'
def javaVersion = JavaVersion.VERSION_1_8
android {
compileSdkVersion 28
buildToolsVersion '27.0.3'
compileOptions {
sourceCompatibility javaVersion
targetCompatibility javaVersion
}
//recommend
dexOptions {
jumboMode = true
}
defaultConfig {
applicationId "com.pyn.tinkertest"
minSdkVersion 14
targetSdkVersion 28
versionCode 1
versionName "1.0"
testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
/**
* you can use multiDex and install it in your ApplicationLifeCycle implement
*/
multiDexEnabled true
/**
* buildConfig can change during patch!
* we can use the newly value when patch
*/
buildConfigField "String", "MESSAGE", "\"I am the base apk\""
// buildConfigField "String", "MESSAGE", "\"I am the patch apk\""
/**
* client version would update with patch
* so we can get the newly git version easily!
*/
buildConfigField "String", "TINKER_ID", "\"${getTinkerIdValue()}\""
buildConfigField "String", "PLATFORM", "\"all\""
}
signingConfigs {
release {
try {
storeFile file("./keystore/tinkertest.jks")
storePassword "123456"
keyAlias "tinkertest"
keyPassword "123456"
} catch (ex) {
throw new InvalidUserDataException(ex.toString())
}
}
}
buildTypes {
release {
minifyEnabled true
signingConfig signingConfigs.release
proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
}
debug {
debuggable true
minifyEnabled false
}
}
sourceSets {
main {
jniLibs.srcDirs = ['libs']
}
}
}
repositories {
flatDir {
dirs 'libs'
}
}
def gitSha() {
try {
String gitRev = 'git rev-parse --short HEAD'.execute(null, project.rootDir).text.trim()
if (gitRev == null) {
throw new GradleException("can't get git rev, you should add git to system path or just input test value, such as 'testTinkerId'")
}
return gitRev
} catch (Exception e) {
throw new GradleException("can't get git rev, you should add git to system path or just input test value, such as 'testTinkerId'")
}
}
def bakPath = file("${buildDir}/bakApk/")
/**
* you can use assembleRelease to build you base apk
* use tinkerPatchRelease -POLD_APK= -PAPPLY_MAPPING= -PAPPLY_RESOURCE= to build patch
* add apk from the build/bakApk
*/
ext {
//for some reason, you may want to ignore tinkerBuild, such as instant run debug build?
tinkerEnabled = true
//for normal build
//old apk file to build patch apk
tinkerOldApkPath = "${bakPath}/app-release-0702-13-41-18.apk"
//proguard mapping file to build patch apk
tinkerApplyMappingPath = "${bakPath}/app-release-0702-13-41-18-mapping.txt"
//resource R.txt to build patch apk, must input if there is resource changed
tinkerApplyResourcePath = "${bakPath}/app-release-0702-13-41-18-R.txt"
//only use for build all flavor, if not, just ignore this field
tinkerBuildFlavorDirectory = "${bakPath}/app-0702-13-41-18"
}
def getOldApkPath() {
return hasProperty("OLD_APK") ? OLD_APK : ext.tinkerOldApkPath
}
def getApplyMappingPath() {
return hasProperty("APPLY_MAPPING") ? APPLY_MAPPING : ext.tinkerApplyMappingPath
}
def getApplyResourceMappingPath() {
return hasProperty("APPLY_RESOURCE") ? APPLY_RESOURCE : ext.tinkerApplyResourcePath
}
def getTinkerIdValue() {
return hasProperty("TINKER_ID") ? TINKER_ID : gitSha()
}
def buildWithTinker() {
return hasProperty("TINKER_ENABLE") ? Boolean.parseBoolean(TINKER_ENABLE) : ext.tinkerEnabled
}
def getTinkerBuildFlavorDirectory() {
return ext.tinkerBuildFlavorDirectory
}
if (buildWithTinker()) {
apply plugin: 'com.tencent.tinker.patch'
tinkerPatch {
/**
* necessary，default 'null'
* the old apk path, use to diff with the new apk to build
* add apk from the build/bakApk
*/
oldApk = getOldApkPath()
/**
* optional，default 'false'
* there are some cases we may get some warnings
* if ignoreWarning is true, we would just assert the patch process
* case 1: minSdkVersion is below 14, but you are using dexMode with raw.
* it must be crash when load.
* case 2: newly added Android Component in AndroidManifest.xml,
* it must be crash when load.
* case 3: loader classes in dex.loader{} are not keep in the main dex,
* it must be let tinker not work.
* case 4: loader classes in dex.loader{} changes,
* loader classes is ues to load patch dex. it is useless to change them.
* it won't crash, but these changes can't effect. you may ignore it
* case 5: resources.arsc has changed, but we don't use applyResourceMapping to build
*/
ignoreWarning = false
/**
* optional，default 'true'
* whether sign the patch file
* if not, you must do yourself. otherwise it can't check success during the patch loading
* we will use the sign config with your build type
*/
useSign = true
/**
* optional，default 'true'
* whether use tinker to build
*/
tinkerEnable = buildWithTinker()
/**
* Warning, applyMapping will affect the normal android build!
*/
buildConfig {
/**
* optional，default 'null'
* if we use tinkerPatch to build the patch apk, you'd better to apply the old
* apk mapping file if minifyEnabled is enable!
* Warning:
* you must be careful that it will affect the normal assemble build!
*/
applyMapping = getApplyMappingPath()
/**
* optional，default 'null'
* It is nice to keep the resource id from R.txt file to reduce java changes
*/
applyResourceMapping = getApplyResourceMappingPath()
/**
* necessary，default 'null'
* because we don't want to check the base apk with md5 in the runtime(it is slow)
* tinkerId is use to identify the unique base apk when the patch is tried to apply.
* we can use git rev, svn rev or simply versionCode.
* we will gen the tinkerId in your manifest automatic
*/
tinkerId = getTinkerIdValue()
/**
* if keepDexApply is true, class in which dex refer to the old apk.
* open this can reduce the dex diff file size.
*/
keepDexApply = false
/**
* optional, default 'false'
* Whether tinker should treat the base apk as the one being protected by app
* protection tools.
* If this attribute is true, the generated patch package will contain a
* dex including all changed classes instead of any dexdiff patch-info files.
*/
isProtectedApp = true
/**
* optional, default 'false'
* Whether tinker should support component hotplug (add new component dynamically).
* If this attribute is true, the component added in new apk will be available after
* patch is successfully loaded. Otherwise an error would be announced when generating patch
* on compile-time.
*
* Notice that currently this feature is incubating and only support NON-EXPORTED Activity
*/
supportHotplugComponent = false
}
dex {
/**
* optional，default 'jar'
* 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 = "jar"
/**
* necessary，default '[]'
* what dexes in apk are expected to deal with tinkerPatch
* it support * or ? pattern.
*/
pattern = ["classes*.dex",
"assets/secondary-dex-?.jar"]
/**
* necessary，default '[]'
* 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, and the classes you use in them
*
*/
loader = [
//use sample, let BaseBuildInfo unchangeable with tinker
"tinker.sample.android.app.BaseBuildInfo"
]
}
lib {
/**
* optional，default '[]'
* what library in apk are expected to deal with tinkerPatch
* it support * or ? pattern.
* for library in assets, we would just recover them in the patch directory
* you can get them in TinkerLoadResult with Tinker
*/
pattern = ["lib/*/*.so"]
}
res {
/**
* optional，default '[]'
* what resource in apk are expected to deal with tinkerPatch
* it support * or ? pattern.
* you must include all your resources in apk here,
* otherwise, they won't repack in the new apk resources.
*/
pattern = ["res/*", "assets/*", "resources.arsc", "AndroidManifest.xml"]
/**
* optional，default '[]'
* the resource file exclude patterns, ignore add, delete or modify resource change
* it support * or ? pattern.
* Warning, we can only use for files no relative with resources.arsc
*/
ignoreChange = ["assets/sample_meta.txt"]
/**
* default 100kb
* for modify resource, if it is larger than 'largeModSize'
* we would like to use bsdiff algorithm to reduce patch file size
*/
largeModSize = 100
}
packageConfig {
/**
* optional，default 'TINKER_ID, TINKER_ID_VALUE' 'NEW_TINKER_ID, NEW_TINKER_ID_VALUE'
* package meta file gen. path is assets/package_meta.txt in patch file
* you can use securityCheck.getPackageProperties() in your ownPackageCheck method
* or TinkerLoadResult.getPackageConfigByName
* we will get the TINKER_ID from the old apk manifest for you automatic,
* other config files (such as patchMessage below)is not necessary
*/
configField("patchMessage", "tinker is sample to use")
/**
* just a sample case, you can use such as sdkVersion, brand, channel...
* you can parse it in the SamplePatchListener.
* Then you can use patch conditional!
*/
configField("platform", "all")
/**
* patch version via packageConfig
*/
configField("patchVersion", "1.0")
}
//or you can add config filed outside, or get meta value from old apk
//project.tinkerPatch.packageConfig.configField("test1", project.tinkerPatch.packageConfig.getMetaDataFromOldApk("Test"))
//project.tinkerPatch.packageConfig.configField("test2", "sample")
/**
* if you don't use zipArtifact or path, we just use 7za to try
*/
sevenZip {
/**
* optional，default '7za'
* the 7zip artifact path, it will use the right 7za with your platform
*/
zipArtifact = "com.tencent.mm:SevenZip:1.1.10"
/**
* optional，default '7za'
* you can specify the 7za path yourself, it will overwrite the zipArtifact value
*/
// path = "/usr/local/bin/7za"
}
}
List flavors = new ArrayList<>();
project.android.productFlavors.each { flavor ->
flavors.add(flavor.name)
}
boolean hasFlavors = flavors.size() > 0
def date = new Date().format("MMdd-HH-mm-ss")
/**
* bak apk and mapping
*/
android.applicationVariants.all { variant ->
/**
* task type, you want to bak
*/
def taskName = variant.name
tasks.all {
if ("assemble${taskName.capitalize()}".equalsIgnoreCase(it.name)) {
it.doLast {
copy {
def fileNamePrefix = "${project.name}-${variant.baseName}"
def newFileNamePrefix = hasFlavors ? "${fileNamePrefix}" : "${fileNamePrefix}-${date}"
def destPath = hasFlavors ? file("${bakPath}/${project.name}-${date}/${variant.flavorName}") : bakPath
from variant.outputs.first().outputFile
into destPath
rename { String fileName ->
fileName.replace("${fileNamePrefix}.apk", "${newFileNamePrefix}.apk")
}
from "${buildDir}/outputs/mapping/${variant.dirName}/mapping.txt"
into destPath
rename { String fileName ->
fileName.replace("mapping.txt", "${newFileNamePrefix}-mapping.txt")
}
from "${buildDir}/intermediates/symbols/${variant.dirName}/R.txt"
into destPath
rename { String fileName ->
fileName.replace("R.txt", "${newFileNamePrefix}-R.txt")
}
}
}
}
}
}
project.afterEvaluate {
//sample use for build all flavor for one time
if (hasFlavors) {
task(tinkerPatchAllFlavorRelease) {
group = 'tinker'
def originOldPath = getTinkerBuildFlavorDirectory()
for (String flavor : flavors) {
def tinkerTask = tasks.getByName("tinkerPatch${flavor.capitalize()}Release")
dependsOn tinkerTask
def preAssembleTask = tasks.getByName("process${flavor.capitalize()}ReleaseManifest")
preAssembleTask.doFirst {
String flavorName = preAssembleTask.name.substring(7, 8).toLowerCase() + preAssembleTask.name.substring(8, preAssembleTask.name.length() - 15)
project.tinkerPatch.oldApk = "${originOldPath}/${flavorName}/${project.name}-${flavorName}-release.apk"
project.tinkerPatch.buildConfig.applyMapping = "${originOldPath}/${flavorName}/${project.name}-${flavorName}-release-mapping.txt"
project.tinkerPatch.buildConfig.applyResourceMapping = "${originOldPath}/${flavorName}/${project.name}-${flavorName}-release-R.txt"
}
}
}
task(tinkerPatchAllFlavorDebug) {
group = 'tinker'
def originOldPath = getTinkerBuildFlavorDirectory()
for (String flavor : flavors) {
def tinkerTask = tasks.getByName("tinkerPatch${flavor.capitalize()}Debug")
dependsOn tinkerTask
def preAssembleTask = tasks.getByName("process${flavor.capitalize()}DebugManifest")
preAssembleTask.doFirst {
String flavorName = preAssembleTask.name.substring(7, 8).toLowerCase() + preAssembleTask.name.substring(8, preAssembleTask.name.length() - 13)
project.tinkerPatch.oldApk = "${originOldPath}/${flavorName}/${project.name}-${flavorName}-debug.apk"
project.tinkerPatch.buildConfig.applyMapping = "${originOldPath}/${flavorName}/${project.name}-${flavorName}-debug-mapping.txt"
project.tinkerPatch.buildConfig.applyResourceMapping = "${originOldPath}/${flavorName}/${project.name}-${flavorName}-debug-R.txt"
}
}
}
}
}
}
dependencies {
implementation fileTree(include: ['*.jar'], dir: 'libs')
implementation 'com.android.support:appcompat-v7:28.+'
implementation 'com.android.support.constraint:constraint-layout:1.0.2'
//optional, help to generate the final application
annotationProcessor("com.tencent.tinker:tinker-android-anno:${TINKER_VERSION}") {
changing = true
}
compileOnly("com.tencent.tinker:tinker-android-anno:${TINKER_VERSION}") { changing = true }
//tinker's main Android lib
implementation("com.tencent.tinker:tinker-android-lib:${TINKER_VERSION}") { changing = true }
implementation 'com.tbruyelle.rxpermissions2:rxpermissions:0.9.5@aar'
implementation 'io.reactivex.rxjava2:rxandroid:2.0.2'
implementation 'io.reactivex.rxjava2:rxjava:2.1.16'
implementation 'com.android.support:multidex:1.0.1'
testImplementation 'junit:junit:4.12'
androidTestImplementation 'com.android.support.test:runner:1.0.1'
androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.1'
}
像 TINKER_ID 、TINKER_VERSION 我这是配置在 gradle.properties 中的：
image.png
新建一个 MyTinkerApplicationLike 类继承 DefaultApplicationLike ：
@DefaultLifeCycle(
application = "com.pyn.MyTinkerApplication", //application name to generate
flags = ShareConstants.TINKER_ENABLE_ALL,
loadVerifyFlag = false)
public class MyTinkerApplicationLike extends DefaultApplicationLike {
public MyTinkerApplicationLike(Application application, int tinkerFlags, boolean tinkerLoadVerifyFlag, long applicationStartElapsedTime, long applicationStartMillisTime, Intent tinkerResultIntent) {
super(application, tinkerFlags, tinkerLoadVerifyFlag, applicationStartElapsedTime, applicationStartMillisTime, tinkerResultIntent);
}
@Override
public void onBaseContextAttached(Context base) {
super.onBaseContextAttached(base);
MultiDex.install(base);
}
@Override
public void onCreate() {
super.onCreate();
TinkerInstaller.install(this);
}
}
AndroidManifest.xml：
image.png
MainActivity：
public class MainActivity extends AppCompatActivity {
private static final String TAG = "MainActivity";
RxPermissions rxPermission;
TextView tvContent;
Button btnRepair;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
rxPermission = new RxPermissions(MainActivity.this);
rxPermission.requestEach(Manifest.permission.READ_EXTERNAL_STORAGE,
Manifest.permission.WRITE_EXTERNAL_STORAGE)
.subscribe(new Consumer() {
@Override
public void accept(Permission permission) throws Exception {
if (permission.granted) {
// 用户已经同意该权限
Log.d(TAG, permission.name + " is granted.");
} else if (permission.shouldShowRequestPermissionRationale) {
// 用户拒绝了该权限，没有选中『不再询问』（Never ask again）,那么下次再次启动时，还会提示请求权限的对话框
Log.d(TAG, permission.name + " is denied. More info should be provided.");
} else {
// 用户拒绝了该权限，并且选中『不再询问』
Log.d(TAG, permission.name + " is denied.");
}
}
});
initViews();
}
private void initViews() {
tvContent = findViewById(R.id.tv_content);
btnRepair = findViewById(R.id.btn_repair);
btnRepair.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
loadPatch();
}
});
}
private void loadPatch() {
TinkerInstaller.onReceiveUpgradePatch(getApplicationContext(),
Environment.getExternalStorageDirectory().getAbsolutePath() + "/patch.apk");
}
}
然后就是编译了，先来个debug包：
image.png
image.png
随意改点代码，新增 jar 包也好，改 xml 文件也好，代码改动改动，在 app 的 build.gradle 中配置基准包的文件名改成刚刚生成的：
image.png
image.png
image.png
我这里有个配置 isProtectedApp = true 是为了让包支持加固，测试爱加固也是成功的，默认的配置都是false，要支持加固得设置成 true 。
当然还有一些配置的具体意义， GitHub 也有详细的描述，还有 TinkerPatch 是官方提供的补丁管理后台，这个集成更加简单了，如果不想用自己公司的后台管理补丁，直接用人家也蛮方便的，不过超过一定的量收费噢~ 哈哈，现在 bugly 平台中的热修复也是 tinker 方案，这个就免费，真是良心啊。
最后再来补充一点，在补丁包加载的时候，应用会直接关闭，感觉就是有bug闪退了一般，当然这种体验是极度不好的， tinker-sample-android 中写好了最佳实践的代码，可以自定义一些加载回调啊，服务啊，来满足自己的需求，建议直接拷贝 SampleResultService.java 这个 Service 类（记得在AndroidManifest.xml中注册），它在应用退入后台或手机灭屏时，才杀掉进程，神不知鬼不觉的就把补丁包打好了，啧啧啧，这样也大大提升了用户体验。然后在初始化 tinker 这里，MyTinkerApplicationLike中，修改一下代码，如截图所示：
image.png