微信Tinker热更新 Android微信Tinker热更新详细使用

buildscript {
 repositories {
 jcenter()
 }
 dependencies {
 classpath 'com.android.tools.build:gradle:2.2.3'
 classpath ('com.tencent.tinker:tinker-patch-gradle-plugin:1.7.6')
 // NOTE: Do not place your application dependencies here; they belong
 // in the individual module build.gradle files
 }
}

allprojects {
 repositories {
 jcenter()
 }
}

task clean(type: Delete) {
 delete rootProject.buildDir
}

apply plugin: 'com.android.application'

def javaVersion = JavaVersion.VERSION_1_7
android {
 compileSdkVersion 23
 buildToolsVersion "23.0.2"

 compileOptions {
 sourceCompatibility javaVersion
 targetCompatibility javaVersion
 }
 //recommend
 dexOptions {
 jumboMode = true
 }


 defaultConfig {
 applicationId "com.tinker.demo.tinkerdemo"
 minSdkVersion 15
 targetSdkVersion 22
 versionCode 1
 versionName "1.0"
 testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"

 buildConfigField "String", "MESSAGE", "\"I am the base apk\""

 buildConfigField "String", "TINKER_ID", "\"${getTinkerIdValue()}\""
 buildConfigField "String", "PLATFORM", "\"all\""
 }

 signingConfigs {
 release {
  try {
  storeFile file("./keystore/release.keystore")
  storePassword "testres"
  keyAlias "testres"
  keyPassword "testres"
  } catch (ex) {
  throw new InvalidUserDataException(ex.toString())
  }
 }

 debug {
  storeFile file("./keystore/debug.keystore")
 }
 }

 buildTypes {
 release {
  minifyEnabled true
  signingConfig signingConfigs.release
  proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
 }
 debug {
  debuggable true
  minifyEnabled false
  signingConfig signingConfigs.debug
 }
 }

 sourceSets {
 main {
  jniLibs.srcDirs = ['libs']
 }
 }


}

dependencies {
 compile fileTree(dir: 'libs', include: ['*.jar'])
 androidTestCompile('com.android.support.test.espresso:espresso-core:2.2.2', {
 exclude group: 'com.android.support', module: 'support-annotations'
 })
 compile "com.android.support:appcompat-v7:23.1.1"
 testCompile 'junit:junit:4.12'

 compile("com.tencent.tinker:tinker-android-lib:${TINKER_VERSION}") { changing = true }
 provided("com.tencent.tinker:tinker-android-anno:${TINKER_VERSION}") { changing = true }
 compile "com.android.support:multidex:1.0.1"
}

def gitSha() {
 try {
 // String gitRev = 'git rev-parse --short HEAD'.execute(null, project.rootDir).text.trim()
 String gitRev = "1008611"
 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/")

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 = "${bakPath}/app-debug-0113-14-01-29.apk"
 //proguard mapping file to build patch apk
 tinkerApplyMappingPath = "${bakPath}/app-debug-1018-17-32-47-mapping.txt"
 //resource R.txt to build patch apk, must input if there is resource changed
 tinkerApplyResourcePath = "${bakPath}/app-debug-0113-14-01-29-R.txt"

 //only use for build all flavor, if not, just ignore this field
 tinkerBuildFlavorDirectory = "${bakPath}/app-1018-17-32-47"
}

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") ? TINKER_ENABLE : ext.tinkerEnabled
}

def getTinkerBuildFlavorDirectory() {
 return ext.tinkerBuildFlavorDirectory
}

if (buildWithTinker()) {
 apply plugin: 'com.tencent.tinker.patch'

 tinkerPatch {
 /**
  * 默认为null
  * 将旧的apk和新的apk建立关联
  * 从build / bakApk添加apk
  */
 oldApk = getOldApkPath()
 /**
  * 可选，默认'false'
  *有些情况下我们可能会收到一些警告
  *如果ignoreWarning为true，我们只是断言补丁过程
  * case 1：minSdkVersion低于14，但是你使用dexMode与raw。
  * case 2：在AndroidManifest.xml中新添加Android组件，
  * case 3：装载器类在dex.loader {}不保留在主要的dex，
  * 它必须让tinker不工作。
  * case 4：在dex.loader {}中的loader类改变，
  * 加载器类是加载补丁dex。改变它们是没有用的。
  * 它不会崩溃，但这些更改不会影响。你可以忽略它
  * case 5：resources.arsc已经改变，但是我们不使用applyResourceMapping来构建
  */
 ignoreWarning = false

 /**
  *可选，默认为“true”
  * 是否签名补丁文件
  * 如果没有，你必须自己做。否则在补丁加载过程中无法检查成功
  * 我们将使用sign配置与您的构建类型
  */
 useSign = true

 /**
  可选，默认为“true”
  是否使用tinker构建
  */
 tinkerEnable = buildWithTinker()

 /**
  * 警告，applyMapping会影响正常的android build！
  */
 buildConfig {
  /**
  *可选，默认为'null'
  * 如果我们使用tinkerPatch构建补丁apk，你最好应用旧的
  * apk映射文件如果minifyEnabled是启用！
  * 警告：你必须小心，它会影响正常的组装构建！
  */
  applyMapping = getApplyMappingPath()
  /**
  *可选，默认为'null'
  * 很高兴保持资源ID从R.txt文件，以减少java更改
  */
  applyResourceMapping = getApplyResourceMappingPath()

  /**
  *必需，默认'null'
  * 因为我们不想检查基地apk与md5在运行时（它是慢）
  * tinkerId用于在试图应用补丁时标识唯一的基本apk。
  * 我们可以使用git rev，svn rev或者简单的versionCode。
  * 我们将在您的清单中自动生成tinkerId
  */
  tinkerId = getTinkerIdValue()

  /**
  *如果keepDexApply为true，则表示dex指向旧apk的类。
  * 打开这可以减少dex diff文件大小。
  */
  keepDexApply = false
 }

 dex {
  /**
  *可选，默认'jar'
  * 只能是'raw'或'jar'。对于原始，我们将保持其原始格式
  * 对于jar，我们将使用zip格式重新包装dexes。
  * 如果你想支持下面14，你必须使用jar
  * 或者你想保存rom或检查更快，你也可以使用原始模式
  */
  dexMode = "jar"

  /**
  *必需，默认'[]'
  * apk中的dexes应该处理tinkerPatch
  * 它支持*或？模式。
  */
  pattern = ["classes*.dex",
   "assets/secondary-dex-?.jar"]
  /**
  *必需，默认'[]'
  * 警告，这是非常非常重要的，加载类不能随补丁改变。
  * 因此，它们将从补丁程序中删除。
  * 你必须把下面的类放到主要的dex。
  * 简单地说，你应该添加自己的应用程序{@code tinker.sample.android.SampleApplication}
  * 自己的tinkerLoader，和你使用的类
  *
  */
  loader = [
   //use sample, let BaseBuildInfo unchangeable with tinker
   "tinker.sample.android.app.BaseBuildInfo"
  ]
 }

 lib {
  /**
  可选，默认'[]'
  apk中的图书馆应该处理tinkerPatch
  它支持*或？模式。
  对于资源库，我们只是在补丁目录中恢复它们
  你可以得到他们在TinkerLoadResult与Tinker
  */
  pattern = ["lib/armeabi/*.so"]
 }

 res {
  /**
  *可选，默认'[]'
  * apk中的什么资源应该处理tinkerPatch
  * 它支持*或？模式。
  * 你必须包括你在这里的所有资源，
  * 否则，他们不会重新包装在新的apk资源。
  */
  pattern = ["res/*", "assets/*", "resources.arsc", "AndroidManifest.xml"]

  /**
  *可选，默认'[]'
  *资源文件排除模式，忽略添加，删除或修改资源更改
  * *它支持*或？模式。
  * *警告，我们只能使用文件没有relative与resources.arsc
  */
  ignoreChange = ["assets/sample_meta.txt"]

  /**
  *默认100kb
  * *对于修改资源，如果它大于'largeModSize'
  * *我们想使用bsdiff算法来减少补丁文件的大小
  */
  largeModSize = 100
 }

 packageConfig {
  /**
  *可选，默认'TINKER_ID，TINKER_ID_VALUE'，'NEW_TINKER_ID，NEW_TINKER_ID_VALUE'
  * 包元文件gen。路径是修补程序文件中的assets / package_meta.txt
  * 你可以在您自己的PackageCheck方法中使用securityCheck.getPackageProperties（）
  * 或TinkerLoadResult.getPackageConfigByName
  * 我们将从旧的apk清单为您自动获取TINKER_ID，
  * 其他配置文件（如下面的patchMessage）不是必需的
  */
  configField("patchMessage", "tinker is sample to use")
  /**
  *只是一个例子，你可以使用如sdkVersion，品牌，渠道...
  * 你可以在SamplePatchListener中解析它。
  * 然后你可以使用补丁条件！
  */
  configField("platform", "all")
  /**
  * 补丁版本通过packageConfig
  */
  configField("patchVersion", "1.0")
 }
 //或者您可以添加外部的配置文件，或从旧apk获取元值
 //project.tinkerPatch.packageConfig.configField("test1", project.tinkerPatch.packageConfig.getMetaDataFromOldApk("Test"))
 //project.tinkerPatch.packageConfig.configField("test2", "sample")

 /**
  * 如果你不使用zipArtifact或者path，我们只是使用7za来试试
  */
 sevenZip {
  /**
  * 可选，默认'7za'
  * 7zip工件路径，它将使用正确的7za与您的平台
  */
  zipArtifact = "com.tencent.mm:SevenZip:1.1.10"
  /**
  * 可选，默认'7za'
  * 你可以自己指定7za路径，它将覆盖zipArtifact值
  */
// path = "/usr/local/bin/7za"
 }
 }

 List<String> flavors = new ArrayList<>();
 project.android.productFlavors.each {flavor ->
 flavors.add(flavor.name)
 }
 boolean hasFlavors = flavors.size() > 0
 /**
 * bak apk and mapping
 */
 android.applicationVariants.all { variant ->
 /**
  * task type, you want to bak
  */
 def taskName = variant.name
 def date = new Date().format("MMdd-HH-mm-ss")

 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.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"
   }

  }
  }
 }
 }
}

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
 package="com.tinker.demo.tinkerdemo">

 <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
 <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE"/>

 <application
 android:allowBackup="true"
 android:icon="@mipmap/ic_launcher"
 android:label="@string/app_name"
 android:supportsRtl="true"
 android:name=".AMSKY"
 android:theme="@style/AppTheme">

 <service
  android:name=".service.SampleResultService"
  android:exported="false"/>

 <activity android:name=".MainActivity">
  <intent-filter>
  <action android:name="android.intent.action.MAIN" />

  <category android:name="android.intent.category.LAUNCHER" />
  </intent-filter>
 </activity>
 </application>

</manifest>

@SuppressWarnings("unused")
@DefaultLifeCycle(application = "com.tinker.demo.tinkerdemo.AMSKY",
   flags = ShareConstants.TINKER_ENABLE_ALL,
   loadVerifyFlag = false)
public class SampleApplicationLike extends DefaultApplicationLike {
 private static final String TAG = "Tinker.SampleApplicationLike";

public SampleApplicationLike(Application application, int tinkerFlags, boolean tinkerLoadVerifyFlag,long applicationStartElapsedTime, long applicationStartMillisTime, Intent tinkerResultIntent,Resources[] resources, ClassLoader[] classLoader, AssetManager[] assetManager) {

 super(application,tinkerFlags,tinkerLoadVerifyFlag,applicationStartElapsedTime,applicationStartMillisTime, tinkerResultIntent, resources, classLoader, assetManager);

 }

 /**
 * install multiDex before install tinker
 * so we don't need to put the tinker lib classes in the main dex
 *
 * @param base
 */
 @TargetApi(Build.VERSION_CODES.ICE_CREAM_SANDWICH)
 @Override
 public void onBaseContextAttached(Context base) {
 super.onBaseContextAttached(base);
 //MultiDex必须在Tinker初始化之前
 MultiDex.install(base);
 //这里就是初始化Tinker
 TinkerInstaller.install(this,new DefaultLoadReporter(getApplication()),new DefaultPatchReporter(getApplication()),
 new DefaultPatchListener(getApplication()),SampleResultService.class,new UpgradePatch());
 Tinker tinker = Tinker.with(getApplication());
 //这个只是一个Toast提示
 Toast.makeText(
 getApplication(),"没鸟用，就是Toast提示而已", Toast.LENGTH_SHORT).show();
 }

 @Override
 public void onCreate() {
 super.onCreate();
 //这里可以做自己的操作
 }

 @TargetApi(Build.VERSION_CODES.ICE_CREAM_SANDWICH)
 public void registerActivityLifecycleCallbacks(Application.ActivityLifecycleCallbacks callback) {
 getApplication().registerActivityLifecycleCallbacks(callback);
 }

}

public class MainActivity extends AppCompatActivity {

 @Override
 protected void onCreate(Bundle savedInstanceState) {
 super.onCreate(savedInstanceState);
 setContentView(R.layout.activity_main);
 }

 /**
 * 加载热补丁插件
 * @param v
 */
 public void loadPatch(View v) {
 TinkerInstaller.onReceiveUpgradePatch(getApplicationContext(), "/sdcard/debug/patch.apk");
 }

 /**
 * 杀死应用加载补丁
 * @param v
 */
 public void killApp(View v) {
 ShareTinkerInternals.killAllOtherProcess(getApplicationContext());
 android.os.Process.killProcess(android.os.Process.myPid());
 }

 @Override
 protected void onResume() {
 super.onResume();
 Utils.setBackground(false);
 }

 @Override
 protected void onPause() {
 super.onPause();
 Utils.setBackground(true);
 }
}

public class SampleResultService extends DefaultTinkerResultService {
 private static final String TAG = "Tinker.SampleResultService";


 @Override
 public void onPatchResult(final PatchResult result) {
 if (result == null) {
  TinkerLog.e(TAG, "SampleResultService received null result!!!!");
  return;
 }
 TinkerLog.i(TAG, "SampleResultService receive result: %s", result.toString());

 //first, we want to kill the recover process
 TinkerServiceInternals.killTinkerPatchServiceProcess(getApplicationContext());

 Handler handler = new Handler(Looper.getMainLooper());
 handler.post(new Runnable() {
  @Override
  public void run() {
  if (result.isSuccess) {
   Toast.makeText(getApplicationContext(), "patch success, please restart process", Toast.LENGTH_LONG).show();
  } else {
   Toast.makeText(getApplicationContext(), "patch fail, please check reason", Toast.LENGTH_LONG).show();
  }
  }
 });
 // is success and newPatch, it is nice to delete the raw file, and restart at once
 // for old patch, you can't delete the patch file
 if (result.isSuccess) {
  File rawFile = new File(result.rawPatchFilePath);
  if (rawFile.exists()) {
  TinkerLog.i(TAG, "save delete raw patch file");
  SharePatchFileUtil.safeDeleteFile(rawFile);
  }
  //not like TinkerResultService, I want to restart just when I am at background!
  //if you have not install tinker this moment, you can use TinkerApplicationHelper api
  if (checkIfNeedKill(result)) {
  if (Utils.isBackground()) {
   TinkerLog.i(TAG, "it is in background, just restart process");
   restartProcess();
  } else {
   //we can wait process at background, such as onAppBackground
   //or we can restart when the screen off
   TinkerLog.i(TAG, "tinker wait screen to restart process");
   new ScreenState(getApplicationContext(), new ScreenState.IOnScreenOff() {
   @Override
   public void onScreenOff() {
    restartProcess();
   }
   });
  }
  } else {
  TinkerLog.i(TAG, "I have already install the newly patch version!");
  }
 }
 }

 /**
 * you can restart your process through service or broadcast
 */
 private void restartProcess() {
 TinkerLog.i(TAG, "app is background now, i can kill quietly");
 //you can send service or broadcast intent to restart your process
 android.os.Process.killProcess(android.os.Process.myPid());
 }

 static class ScreenState {
 interface IOnScreenOff {
  void onScreenOff();
 }

 ScreenState(Context context, final IOnScreenOff onScreenOffInterface) {
  IntentFilter filter = new IntentFilter();
  filter.addAction(Intent.ACTION_SCREEN_OFF);
  context.registerReceiver(new BroadcastReceiver() {

  @Override
  public void onReceive(Context context, Intent in) {
   String action = in == null ? "" : in.getAction();
   TinkerLog.i(TAG, "ScreenReceiver action [%s] ", action);
   if (Intent.ACTION_SCREEN_OFF.equals(action)) {

   context.unregisterReceiver(this);

   if (onScreenOffInterface != null) {
    onScreenOffInterface.onScreenOff();
   }
   }
  }
  }, filter);
 }
 }

}

public class Utils {

 /**
 * the error code define by myself
 * should after {@code ShareConstants.ERROR_PATCH_INSERVICE
 */
 public static final int ERROR_PATCH_GOOGLEPLAY_CHANNEL = -5;
 public static final int ERROR_PATCH_ROM_SPACE  = -6;
 public static final int ERROR_PATCH_MEMORY_LIMIT  = -7;
 public static final int ERROR_PATCH_ALREADY_APPLY  = -8;
 public static final int ERROR_PATCH_CRASH_LIMIT  = -9;
 public static final int ERROR_PATCH_RETRY_COUNT_LIMIT = -10;
 public static final int ERROR_PATCH_CONDITION_NOT_SATISFIED = -11;

 public static final String PLATFORM = "platform";

 public static final int MIN_MEMORY_HEAP_SIZE = 45;

 private static boolean background = false;

 public static boolean isGooglePlay() {
 return false;
 }

 public static boolean isBackground() {
 return background;
 }

 public static void setBackground(boolean back) {
 background = back;
 }

 public static int checkForPatchRecover(long roomSize, int maxMemory) {
 if (Utils.isGooglePlay()) {
  return Utils.ERROR_PATCH_GOOGLEPLAY_CHANNEL;
 }
 if (maxMemory < MIN_MEMORY_HEAP_SIZE) {
  return Utils.ERROR_PATCH_MEMORY_LIMIT;
 }
 //or you can mention user to clean their rom space!
 if (!checkRomSpaceEnough(roomSize)) {
  return Utils.ERROR_PATCH_ROM_SPACE;
 }

 return ShareConstants.ERROR_PATCH_OK;
 }

 public static boolean isXposedExists(Throwable thr) {
 StackTraceElement[] stackTraces = thr.getStackTrace();
 for (StackTraceElement stackTrace : stackTraces) {
  final String clazzName = stackTrace.getClassName();
  if (clazzName != null && clazzName.contains("de.robv.android.xposed.XposedBridge")) {
  return true;
  }
 }
 return false;
 }

 @Deprecated
 public static boolean checkRomSpaceEnough(long limitSize) {
 long allSize;
 long availableSize = 0;
 try {
  File data = Environment.getDataDirectory();
  StatFs sf = new StatFs(data.getPath());
  availableSize = (long) sf.getAvailableBlocks() * (long) sf.getBlockSize();
  allSize = (long) sf.getBlockCount() * (long) sf.getBlockSize();
 } catch (Exception e) {
  allSize = 0;
 }

 if (allSize != 0 && availableSize > limitSize) {
  return true;
 }
 return false;
 }

 public static String getExceptionCauseString(final Throwable ex) {
 final ByteArrayOutputStream bos = new ByteArrayOutputStream();
 final PrintStream ps = new PrintStream(bos);

 try {
  // print directly
  Throwable t = ex;
  while (t.getCause() != null) {
  t = t.getCause();
  }
  t.printStackTrace(ps);
  return toVisualString(bos.toString());
 } finally {
  try {
  bos.close();
  } catch (IOException e) {
  e.printStackTrace();
  }
 }
 }

 private static String toVisualString(String src) {
 boolean cutFlg = false;

 if (null == src) {
  return null;
 }

 char[] chr = src.toCharArray();
 if (null == chr) {
  return null;
 }

 int i = 0;
 for (; i < chr.length; i++) {
  if (chr[i] > 127) {
  chr[i] = 0;
  cutFlg = true;
  break;
  }
 }

 if (cutFlg) {
  return new String(chr, 0, i);
 } else {
  return src;
 }
 }
}