目錄介紹
- 01.原生跳轉(zhuǎn)實現(xiàn)
- 02.實現(xiàn)組件跳轉(zhuǎn)方式
- 2.1 傳統(tǒng)跳轉(zhuǎn)方式
- 2.2 為何需要路由
- 03.ARouter配置與優(yōu)勢
- 04.跨進程組件通信
- 4.1 URLScheme
- 4.2 AIDL
- 4.3 BroadcastReceiver
- 4.4 路由通信注意要點
- 05.ARouter的結(jié)構(gòu)
- 06.ARouter的工作流程
- 6.1 初始化流程
- 6.2 跳轉(zhuǎn)頁面流程
- 07.ARouter簡單調(diào)用api
- 7.1 最簡單調(diào)用
- 7.2 build源碼分析
- 7.3 navigation分析
- 08.Postcard信息攜帶
- 09.LogisticsCenter
- 10.DegradeService降級容錯服務(wù)
- 11.Interceptor攔截器
- 12.數(shù)據(jù)傳輸和自動注入
- 13.多dex的支持
- 14.InstantRun支持
- 15.生成的編譯代碼
好消息
- 博客筆記大匯總【16年3月到至今】,包括Java基礎(chǔ)及深入知識點宪躯,Android技術(shù)博客笼呆,Python學(xué)習(xí)筆記等等,還包括平時開發(fā)中遇到的bug匯總,當(dāng)然也在工作之余收集了大量的面試題,長期更新維護并且修正,持續(xù)完善……開源的文件是markdown格式的必搞!同時也開源了生活博客,從12年起囊咏,積累共計N篇[近100萬字,陸續(xù)搬到網(wǎng)上]塔橡,轉(zhuǎn)載請注明出處梅割,謝謝!
- 鏈接地址:https://github.com/yangchong211/YCBlogs
- 如果覺得好葛家,可以star一下户辞,謝謝!當(dāng)然也歡迎提出建議或者問題癞谒,萬事起于忽微底燎,量變引起質(zhì)變刃榨!
注解學(xué)習(xí)小案例
- 注解學(xué)習(xí)小案例,比較系統(tǒng)性學(xué)習(xí)注解并且應(yīng)用實踐双仍。簡單應(yīng)用了運行期注解枢希,通過注解實現(xiàn)了setContentView功能;簡單應(yīng)用了編譯器注解朱沃,通過注解實現(xiàn)了防暴力點擊的功能苞轿,同時支持設(shè)置時間間隔;使用注解替代枚舉逗物;使用注解一步步搭建簡單路由案例搬卒。結(jié)合相應(yīng)的博客,在來一些小案例翎卓,從此應(yīng)該對注解有更加深入的理解……
- 開源項目地址:https://github.com/yangchong211/YCApt
01.原生跳轉(zhuǎn)實現(xiàn)
- Google提供的原聲路由主要是通過intent契邀,可以分成顯示和隱式兩種。顯示的方案會導(dǎo)致類之間的直接依賴問題失暴,耦合嚴(yán)重坯门;隱式intent需要的配置清單中統(tǒng)一聲明,首先有個暴露的問題锐帜,另外在多模塊開發(fā)中協(xié)作也比較困難田盈。只要調(diào)用startActivity后面的環(huán)節(jié)我們就無法控制了,在出現(xiàn)錯誤時無能為力缴阎。
02.實現(xiàn)組件跳轉(zhuǎn)方式
2.1 傳統(tǒng)跳轉(zhuǎn)方式
- 第一種允瞧,通過intent跳轉(zhuǎn)
- 第二種,通過aidl跳轉(zhuǎn)
- 第三種蛮拔,通過scheme協(xié)議跳轉(zhuǎn)
2.2 為何需要路由
- 顯示Intent:項目龐大以后述暂,類依賴耦合太大,不適合組件化拆分
- 隱式Intent:協(xié)作困難建炫,調(diào)用時候不知道調(diào)什么參數(shù)
- 每個注冊了Scheme的Activity都可以直接打開畦韭,有安全風(fēng)險
- AndroidMainfest集中式管理比較臃腫
- 無法動態(tài)修改路由,如果頁面出錯肛跌,無法動態(tài)降級
- 無法動態(tài)攔截跳轉(zhuǎn)艺配,譬如未登錄的情況下,打開登錄頁面衍慎,登錄成功后接著打開剛才想打開的頁面
- H5转唉、Android、iOS地址不一樣稳捆,不利于統(tǒng)一跳轉(zhuǎn)
03.ARouter配置與優(yōu)勢
3.1 ARouter的優(yōu)勢
- 如下所示
- 直接解析URL路由赠法,解析參數(shù)并賦值
- 支持多模塊項目
- 支持InstantRun
- 允許自定義攔截器
- ARouter可以提供IoC容器
- 映射關(guān)系自動注冊
- 靈活的降級策略
3.2 至于配置和使用
04.跨進程組件通信
4.1 URLScheme【例如:ActivityRouter、ARouter等】
- 優(yōu)勢有:
- 基因中自帶支持從webview中調(diào)用
- 不用互相注冊(不用知道需要調(diào)用的app的進程名稱等信息)
- 劣勢有:
- 只能單向地給組件發(fā)送信息乔夯,適用于啟動Activity和發(fā)送指令砖织,不適用于獲取數(shù)據(jù)(例如:獲取用戶組件的當(dāng)前用戶登錄信息)
- 需要有個額外的中轉(zhuǎn)Activity來統(tǒng)一處理URLScheme
- 如果設(shè)備上安裝了多個使用相同URLScheme的app款侵,會彈出選擇框(多個組件作為app同時安裝到設(shè)備上時會出現(xiàn)這個問題)
- 無法進行權(quán)限設(shè)置,無法進行開關(guān)設(shè)置侧纯,存在安全性風(fēng)險
4.2 AIDL
- 優(yōu)勢有:
- 可以傳遞Parcelable類型的對象
- 效率高
- 可以設(shè)置跨app調(diào)用的開關(guān)
- 劣勢有:
- 調(diào)用組件之前需要提前知道該組件在那個進程新锈,否則無法建立ServiceConnection
- 組件在作為獨立app和作為lib打包到主app時,進程名稱不同茂蚓,維護成本高
4.3 BroadcastReceiver
- BroadcastReceiver + Service + LocalSocket壕鹉。該方案是參考cc路由框架!
- 跨組件間通信實現(xiàn)的同時聋涨,應(yīng)該滿足以下條件:
- 每個app都能給其它app調(diào)用
- app可以設(shè)置是否對外提供跨進程組件調(diào)用的支持
- 組件調(diào)用的請求發(fā)出去之后晾浴,能自動探測當(dāng)前設(shè)備上是否有支持此次調(diào)用的app
- 支持超時、取消
4.4 路由通信注意要點
05.ARouter的結(jié)構(gòu)
- ARouter主要由三部分組成牍白,包括對外提供的api調(diào)用模塊脊凰、注解模塊以及編譯時通過注解生產(chǎn)相關(guān)的類模塊。
- arouter-annotation注解的聲明和信息存儲類的模塊
- arouter-compiler編譯期解析注解信息并生成相應(yīng)類以便進行注入的模塊
- arouter-api核心調(diào)用Api功能的模塊
- annotation模塊
- Route茂腥、Interceptor狸涌、Autowired都是在開發(fā)是需要的注解。
- image
- compiler模塊
- AutoWiredProcessor最岗、InterceptorProcessor帕胆、RouteProcessor分別為annotation模塊對應(yīng)的Autowired、Interceptor般渡、Route在項目編譯時產(chǎn)生相關(guān)的類文件懒豹。
- api模塊
- 主要是ARouter具體實現(xiàn)和對外暴露使用的api。
06.ARouter的工作流程
6.1 初始化流程
- 初始化代碼如下所示
/** * Init, it must be call before used router. */ public static void init(Application application) { //如果沒有初始化驯用,則 if (!hasInit) { logger = _ARouter.logger; _ARouter.logger.info(Consts.TAG, "ARouter init start."); //做初始化工作 hasInit = _ARouter.init(application); if (hasInit) { _ARouter.afterInit(); } _ARouter.logger.info(Consts.TAG, "ARouter init over."); } }
- 之后接著看_ARouter.init(application)這行代碼脸秽,點擊去查看
protected static synchronized boolean init(Application application) { //賦值上下文 mContext = application; //初始化LogisticsCenter LogisticsCenter.init(mContext, executor); logger.info(Consts.TAG, "ARouter init success!"); hasInit = true; mHandler = new Handler(Looper.getMainLooper()); return true; }
- 接下來看看LogisticsCenter里面做了什么
public class LogisticsCenter { /** * LogisticsCenter init, load all metas in memory. Demand initialization */ public synchronized static void init(Context context, ThreadPoolExecutor tpe) throws HandlerException { mContext = context; executor = tpe; try { long startInit = System.currentTimeMillis(); Set<String> routerMap; //debug或者版本更新的時候每次都重新加載router信息 // It will rebuild router map every times when debuggable. if (ARouter.debuggable() || PackageUtils.isNewVersion(context)) { logger.info(TAG, "Run with debug mode or new install, rebuild router map."); // These class was generate by arouter-compiler. //加載alibaba.android.arouter.routes包下載的類 routerMap = ClassUtils.getFileNameByPackageName(mContext, ROUTE_ROOT_PAKCAGE); if (!routerMap.isEmpty()) { context.getSharedPreferences(AROUTER_SP_CACHE_KEY, Context.MODE_PRIVATE).edit().putStringSet(AROUTER_SP_KEY_MAP, routerMap).apply(); } PackageUtils.updateVersion(context); // Save new version name when router map update finish. } else { logger.info(TAG, "Load router map from cache."); routerMap = new HashSet<>(context.getSharedPreferences(AROUTER_SP_CACHE_KEY, Context.MODE_PRIVATE).getStringSet(AROUTER_SP_KEY_MAP, new HashSet<String>())); } logger.info(TAG, "Find router map finished, map size = " + routerMap.size() + ", cost " + (System.currentTimeMillis() - startInit) + " ms."); startInit = System.currentTimeMillis(); for (String className : routerMap) { if (className.startsWith(ROUTE_ROOT_PAKCAGE + DOT + SDK_NAME + SEPARATOR + SUFFIX_ROOT)) { // This one of root elements, load root. //導(dǎo)入ARouter$$Root$$app.java,初始化Warehouse.groupsIndex集合 ((IRouteRoot) (Class.forName(className).getConstructor().newInstance())).loadInto(Warehouse.groupsIndex); } else if (className.startsWith(ROUTE_ROOT_PAKCAGE + DOT + SDK_NAME + SEPARATOR + SUFFIX_INTERCEPTORS)) { // Load interceptorMeta //導(dǎo)入ARouter$$Interceptors$$app.java,初始化Warehouse.interceptorsIndex集合 ((IInterceptorGroup) (Class.forName(className).getConstructor().newInstance())).loadInto(Warehouse.interceptorsIndex); } else if (className.startsWith(ROUTE_ROOT_PAKCAGE + DOT + SDK_NAME + SEPARATOR + SUFFIX_PROVIDERS)) { // Load providerIndex //導(dǎo)入ARouter$$Providers$$app.java蝴乔,初始化Warehouse.providersIndex集合 ((IProviderGroup) (Class.forName(className).getConstructor().newInstance())).loadInto(Warehouse.providersIndex); } } /*******部分代碼省略********/ } catch (Exception e) { throw new HandlerException(TAG + "ARouter init logistics center exception! [" + e.getMessage() + "]"); } } }
- 綜上所述记餐,整個初始化的流程大概就是:
- 初始化運行時的上下文環(huán)境
- 初始化日志logger
- 尋找router相關(guān)的類
- 解析并且緩存路由相關(guān)信息
- 初始化攔截服務(wù)
6.2 跳轉(zhuǎn)頁面流程
- image
07.ARouter調(diào)用api
7.1 最簡單調(diào)用
- 最簡單的調(diào)用方式
ARouter.getInstance() .build("/user/UserFragment") .navigation();
7.2 build源碼分析
- 這個主要是添加跳轉(zhuǎn)的路徑
public Postcard build(String path) { return _ARouter.getInstance().build(path); }
- 然后把這個路徑添加到默認的組中
/** * Build postcard by path and default group */ protected Postcard build(String path) { if (TextUtils.isEmpty(path)) { throw new HandlerException(Consts.TAG + "Parameter is invalid!"); } else { PathReplaceService pService = ARouter.getInstance().navigation(PathReplaceService.class); if (null != pService) { path = pService.forString(path); } return build(path, extractGroup(path)); } }
7.3 navigation分析
- 如下所示
final class _ARouter { protected Object navigation(final Context context, final Postcard postcard, final int requestCode, final NavigationCallback callback) { try { LogisticsCenter.completion(postcard); } catch (NoRouteFoundException ex) { /**************部分代碼省略***************/ if (null != callback) { callback.onLost(postcard); } else { // No callback for this invoke, then we use the global degrade service. DegradeService degradeService = ARouter.getInstance().navigation(DegradeService.class); if (null != degradeService) { degradeService.onLost(context, postcard); } } return null; } if (null != callback) { callback.onFound(postcard); } //是否為綠色通道,是否進過攔截器處理 if (!postcard.isGreenChannel()) { // It must be run in async thread, maybe interceptor cost too mush time made ANR. interceptorService.doInterceptions(postcard, new InterceptorCallback() { @Override public void onContinue(Postcard postcard) { _navigation(context, postcard, requestCode, callback); } @Override public void onInterrupt(Throwable exception) { //中斷處理 if (null != callback) { callback.onInterrupt(postcard); } } }); } else { return _navigation(context, postcard, requestCode, callback); } return null; } private Object _navigation(final Context context, final Postcard postcard, final int requestCode, final NavigationCallback callback) { //沒有上下文環(huán)境薇正,就用Application的上下文環(huán)境 final Context currentContext = null == context ? mContext : context; switch (postcard.getType()) { case ACTIVITY: // Build intent 構(gòu)建跳轉(zhuǎn)的intent final Intent intent = new Intent(currentContext, postcard.getDestination()); intent.putExtras(postcard.getExtras()); // Set flags. 設(shè)置flag int flags = postcard.getFlags(); if (-1 != flags) { intent.setFlags(flags); } else if (!(currentContext instanceof Activity)) { // Non activity, need less one flag. //如果上下文不是Activity片酝,則添加FLAG_ACTIVITY_NEW_TASK的flag intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK); } // Navigation in main looper. 切換到主線程中 new Handler(Looper.getMainLooper()).post(new Runnable() { @Override public void run() { if (requestCode > 0) { // Need start for result ActivityCompat.startActivityForResult((Activity) currentContext, intent, requestCode, postcard.getOptionsBundle()); } else { ActivityCompat.startActivity(currentContext, intent, postcard.getOptionsBundle()); } if ((0 != postcard.getEnterAnim() || 0 != postcard.getExitAnim()) && currentContext instanceof Activity) { // Old version. ((Activity) currentContext).overridePendingTransition(postcard.getEnterAnim(), postcard.getExitAnim()); } if (null != callback) { // Navigation over. callback.onArrival(postcard); } } }); break; case PROVIDER: return postcard.getProvider(); case BOARDCAST: case CONTENT_PROVIDER: case FRAGMENT: Class fragmentMeta = postcard.getDestination(); try { Object instance = fragmentMeta.getConstructor().newInstance(); if (instance instanceof Fragment) { ((Fragment) instance).setArguments(postcard.getExtras()); } else if (instance instanceof android.support.v4.app.Fragment) { ((android.support.v4.app.Fragment) instance).setArguments(postcard.getExtras()); } return instance; } catch (Exception ex) { logger.error(Consts.TAG, "Fetch fragment instance error, " + TextUtils.formatStackTrace(ex.getStackTrace())); } case METHOD: case SERVICE: default: return null; } return null; } }
08.Postcard信息攜帶
- Postcard主要為信息的攜帶者,內(nèi)容是在構(gòu)造一次路由信息的時候生產(chǎn)的挖腰,其繼承于RouteMeta雕沿。RouteMeta是在代碼編譯時生成的內(nèi)容,主要在初始化WareHouse時對跳轉(zhuǎn)信息做了緩存曙聂。
- 看看代碼如下所示
//Postcard繼承于RouteMeta public final class Postcard extends RouteMeta //然后看看編譯生成的文件 /** * DO NOT EDIT THIS FILE!!! IT WAS GENERATED BY AROUTER. */ public class ARouter$$Group$$me implements IRouteGroup { @Override public void loadInto(Map<String, RouteMeta> atlas) { atlas.put("/me/ExperienceCouponActivity", RouteMeta.build(RouteType.ACTIVITY, ExperienceCouponActivity.class, "/me/experiencecouponactivity", "me", null, -1, -2147483648)); atlas.put("/me/ServiceActivity", RouteMeta.build(RouteType.ACTIVITY, ServiceActivity.class, "/me/serviceactivity", "me", null, -1, -2147483648)); atlas.put("/me/SettingActivity", RouteMeta.build(RouteType.ACTIVITY, SettingActivity.class, "/me/settingactivity", "me", null, -1, -2147483648)); atlas.put("/me/UdeskServiceActivity", RouteMeta.build(RouteType.ACTIVITY, UdeskServiceActivity.class, "/me/udeskserviceactivity", "me", null, -1, -2147483648)); } }
10.DegradeService降級容錯服務(wù)
- 首先,自定義一個類鞠鲜,需要繼承DegradeService類宁脊,如下所示
/** * <pre> * @author 楊充 * blog : https://github.com/yangchong211 * time : 2018/08/24 * desc : ARouter路由降級處理 * revise: * </pre> */ @Route(path = DegradeServiceImpl.PATH) public class DegradeServiceImpl implements DegradeService { static final String PATH = "/service/DegradeServiceImpl"; @Override public void onLost(Context context, Postcard postcard) { if (context != null && postcard.getGroup().equals("activity")) { Intent intent = new Intent(context, WebViewActivity.class); intent.putExtra(Constant.URL, Constant.GITHUB); intent.putExtra(Constant.TITLE, "github地址"); ActivityCompat.startActivity(context, intent, null); } } @Override public void init(Context context) { } }
- 如何使用該降級方案断国,十分簡單。
NavigationCallback callback = new NavCallback() { @Override public void onArrival(Postcard postcard) { LogUtils.i("ARouterUtils"+"---跳轉(zhuǎn)完了"); } @Override public void onFound(Postcard postcard) { super.onFound(postcard); LogUtils.i("ARouterUtils"+"---找到了"); } @Override public void onInterrupt(Postcard postcard) { super.onInterrupt(postcard); LogUtils.i("ARouterUtils"+"---被攔截了"); } @Override public void onLost(Postcard postcard) { super.onLost(postcard); LogUtils.i("ARouterUtils"+"---找不到了"); DegradeServiceImpl degradeService = new DegradeServiceImpl(); degradeService.onLost(Utils.getApp(),postcard); } };
11.Interceptor攔截器
- 在ARouter模塊的時候講述Interceptor的使用榆苞,如果本次路由跳轉(zhuǎn)不是走的綠色通道那么則會觸發(fā)攔截器進行過濾稳衬。
final class _ARouter { protected Object navigation(final Context context, final Postcard postcard, final int requestCode, final NavigationCallback callback) { /************部分代碼省略************/ if (!postcard.isGreenChannel()) { // It must be run in async thread, maybe interceptor cost too mush time made ANR. interceptorService.doInterceptions(postcard, new InterceptorCallback() { /** * Continue process * * @param postcard route meta */ @Override public void onContinue(Postcard postcard) { _navigation(context, postcard, requestCode, callback); } /** * Interrupt process, pipeline will be destory when this method called. * * @param exception Reson of interrupt. */ @Override public void onInterrupt(Throwable exception) { if (null != callback) { callback.onInterrupt(postcard); } logger.info(Consts.TAG, "Navigation failed, termination by interceptor : " + exception.getMessage()); } }); } else { return _navigation(context, postcard, requestCode, callback); } return null; } }
- 攔截器的初始化
- 在剛開始初始化的時候,就已經(jīng)做了這個操作坐漏。
final class _ARouter { static void afterInit() { // Trigger interceptor init, use byName. interceptorService = (InterceptorService) ARouter.getInstance().build("/arouter/service/interceptor").navigation(); } }
- InterceptorServiceImpl的init方法:
@Route(path = "/arouter/service/interceptor") public class InterceptorServiceImpl implements InterceptorService { @Override public void init(final Context context) { LogisticsCenter.executor.execute(new Runnable() { @Override public void run() { if (MapUtils.isNotEmpty(Warehouse.interceptorsIndex)) { //循環(huán)遍歷倉庫中的攔截器 for (Map.Entry<Integer, Class<? extends IInterceptor>> entry : Warehouse.interceptorsIndex.entrySet()) { Class<? extends IInterceptor> interceptorClass = entry.getValue(); try { //反射機制構(gòu)造自定義的每一個攔截器實例 IInterceptor iInterceptor = interceptorClass.getConstructor().newInstance(); iInterceptor.init(context); //并將其添加在緩存中 Warehouse.interceptors.add(iInterceptor); } catch (Exception ex) { throw new HandlerException(TAG + "ARouter init interceptor error! name = [" + interceptorClass.getName() + "], reason = [" + ex.getMessage() + "]"); } } interceptorHasInit = true; logger.info(TAG, "ARouter interceptors init over."); synchronized (interceptorInitLock) { interceptorInitLock.notifyAll(); } } } }); } }
- 攔截器的工作過程
@Route(path = "/arouter/service/interceptor") public class InterceptorServiceImpl implements InterceptorService { @Override public void doInterceptions(final Postcard postcard, final InterceptorCallback callback) { if (null != Warehouse.interceptors && Warehouse.interceptors.size() > 0) { //檢測是否初始化完所有的爛機器 checkInterceptorsInitStatus(); //沒有完成正常的初始化薄疚,拋異常 if (!interceptorHasInit) { callback.onInterrupt(new HandlerException("Interceptors initialization takes too much time.")); return; } //順序遍歷每一個攔截器, LogisticsCenter.executor.execute(new Runnable() { @Override public void run() { CancelableCountDownLatch interceptorCounter = new CancelableCountDownLatch(Warehouse.interceptors.size()); try { _excute(0, interceptorCounter, postcard); interceptorCounter.await(postcard.getTimeout(), TimeUnit.SECONDS); //攔截器的遍歷終止之后赊琳,如果有還有沒有遍歷的攔截器街夭,則表示路由事件被攔截 if (interceptorCounter.getCount() > 0) { // Cancel the navigation this time, if it hasn't return anythings. callback.onInterrupt(new HandlerException("The interceptor processing timed out.")); } else if (null != postcard.getTag()) { // Maybe some exception in the tag. callback.onInterrupt(new HandlerException(postcard.getTag().toString())); } else { callback.onContinue(postcard); } } catch (Exception e) { callback.onInterrupt(e); } } }); } else { callback.onContinue(postcard); } } //執(zhí)行攔截器的過濾事件 private static void _excute(final int index, final CancelableCountDownLatch counter, final Postcard postcard) { if (index < Warehouse.interceptors.size()) { IInterceptor iInterceptor = Warehouse.interceptors.get(index); iInterceptor.process(postcard, new InterceptorCallback() { @Override public void onContinue(Postcard postcard) { // Last interceptor excute over with no exception. counter.countDown(); //如果當(dāng)前沒有攔截過濾,那么使用下一個攔截器 _excute(index + 1, counter, postcard); // When counter is down, it will be execute continue ,but index bigger than interceptors size, then U know. } @Override public void onInterrupt(Throwable exception) { // Last interceptor excute over with fatal exception. postcard.setTag(null == exception ? new HandlerException("No message.") : exception.getMessage()); // save the exception message for backup. counter.cancel(); } }); } } }
12.數(shù)據(jù)傳輸和自動注入
13.多dex的支持
- 可查看multidex源碼:
public class ClassUtils { /** * Identifies if the current VM has a native support for multidex, meaning there is no need for * additional installation by this library. * * @return true if the VM handles multidex */ private static boolean isVMMultidexCapable() { boolean isMultidexCapable = false; String vmName = null; try { if (isYunOS()) { // YunOS需要特殊判斷 vmName = "'YunOS'"; isMultidexCapable = Integer.valueOf(System.getProperty("ro.build.version.sdk")) >= 21; } else { // 非YunOS原生Android vmName = "'Android'"; String versionString = System.getProperty("java.vm.version"); if (versionString != null) { Matcher matcher = Pattern.compile("(\\d+)\\.(\\d+)(\\.\\d+)?").matcher(versionString); if (matcher.matches()) { try { int major = Integer.parseInt(matcher.group(1)); int minor = Integer.parseInt(matcher.group(2)); isMultidexCapable = (major > VM_WITH_MULTIDEX_VERSION_MAJOR) || ((major == VM_WITH_MULTIDEX_VERSION_MAJOR) && (minor >= VM_WITH_MULTIDEX_VERSION_MINOR)); } catch (NumberFormatException ignore) { // let isMultidexCapable be false } } } } } catch (Exception ignore) { } Log.i(Consts.TAG, "VM with name " + vmName + (isMultidexCapable ? " has multidex support" : " does not have multidex support")); return isMultidexCapable; } }
14.InstantRun支持
- 什么是InstantRun支持躏筏?
- Android Studio 2.0 中引入的 Instant Run 是 Run 和 Debug 命令的行為板丽,可以大幅縮短應(yīng)用更新的時間。盡管首次構(gòu)建可能需要花費較長的時間趁尼,Instant Run 在向應(yīng)用推送后續(xù)更新時則無需構(gòu)建新的 APK埃碱,因此,這樣可以更快地看到更改酥泞。
15.生成的編譯代碼
- 如下所示
- image
關(guān)于其他內(nèi)容介紹
01.關(guān)于博客匯總鏈接
- 1.技術(shù)博客匯總
- 2.開源項目匯總
- 3.生活博客匯總
- 4.喜馬拉雅音頻匯總
- 5.其他匯總
02.關(guān)于我的博客
- 我的個人站點:www.yczbj.org砚殿,www.ycbjie.cn
- github:https://github.com/yangchong211
- 知乎:https://www.zhihu.com/people/yczbj/activities
- 簡書:http://www.reibang.com/u/b7b2c6ed9284
- csdn:http://my.csdn.net/m0_37700275
- 喜馬拉雅聽書:http://www.ximalaya.com/zhubo/71989305/
- 開源中國:https://my.oschina.net/zbj1618/blog
- 泡在網(wǎng)上的日子:http://www.jcodecraeer.com/member/content_list.php?channelid=1
- 郵箱:yangchong211@163.com
- 阿里云博客:https://yq.aliyun.com/users/article?spm=5176.100- 239.headeruserinfo.3.dT4bcV
- segmentfault頭條:https://segmentfault.com/u/xiangjianyu/articles
- 掘金:https://juejin.im/user/5939433efe88c2006afa0c6e