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我正在开发一款休闲游戏。在我的应用程序还活着并且可以玩之前等待我很无聊，所以我试图减少所有浪费的时间：我使用了通过 OnCreate 中的线程启动的启动画面；我使用 AsyncTask 进行一些初始化。但是，阅读 logcat，我看到在 OnCreate 启动的第一条指令（即对启动画面线程的调用）之前，我在 I-dont-know-why.... 中浪费了将近 6 秒。

    04-25 20:06:42.043: DEBUG/AndroidRuntime(691): CheckJNI is OFF
    04-25 20:06:42.053: INFO/ActivityManager(164): Start proc com.svox.pico for broadcast com.svox.pico/.VoiceDataInstallerReceiver: pid=701 uid=10025 gids={}
    04-25 20:06:42.303: INFO/ActivityManager(164): Process com.android.voicedialer (pid 674) has died.
    04-25 20:06:42.563: INFO/ActivityThread(701): Publishing provider com.svox.pico.providers.SettingsProvider: com.svox.pico.providers.SettingsProvider
    04-25 20:06:42.673: INFO/ActivityManager(164): Start proc com.android.voicedialer for broadcast com.android.voicedialer/.VoiceDialerReceiver: pid=707 uid=10035 gids={3002}
    04-25 20:06:43.073: DEBUG/AndroidRuntime(691): --- registering native functions ---
    04-25 20:06:43.173: DEBUG/VoiceDialerReceiver(707): onReceive Intent { act=android.intent.action.PACKAGE_ADDED dat=package:com.zapmobilegames.herculaneum flg=0x10000000 cmp=com.android.voicedialer/.VoiceDialerReceiver (has extras) }
    04-25 20:06:43.213: VERBOSE/RecognizerEngine(707): deleteCachedGrammarFiles /data/data/com.android.voicedialer/files/openentries.txt
    04-25 20:06:43.213: DEBUG/dalvikvm(681): GC_FOR_MALLOC freed 1689 objects / 111200 bytes in 961ms
    04-25 20:06:43.303: DEBUG/vending(681): [8] LocalAssetCache.buildCache(): No package info for INSTALLED asset -1596932520012319916 (it.vanini.ottavio.android.utility.bt)
    04-25 20:06:43.363: DEBUG/vending(681): [9] LocalAssetDatabase.syncWithPackageManager(): 2 assets for package "com.zapmobilegames.herculaneum": [Ljava.lang.String;@43cb5370
    04-25 20:06:43.533: DEBUG/vending(681): [9] LocalAssetDatabase.notifyListener(): -5299042386818461764 / UNINSTALLED
    04-25 20:06:43.753: DEBUG/vending(681): [9] LocalAssetDatabase.notifyListener(): -3430589060789413441 / UNINSTALLED
    04-25 20:06:43.763: INFO/ActivityManager(164): Process com.pwnwithyourphone.voicecallerid (pid 695) has died.
    04-25 20:06:43.823: INFO/ActivityManager(164): Start proc com.google.android.apps.maps:FriendService for broadcast com.google.android.apps.maps/com.google.googlenav.friend.android.ServiceReceiver: pid=718 uid=10042 gids={3003, 1015}
    04-25 20:06:44.733: INFO/ActivityManager(164): Starting activity: Intent { act=android.intent.action.MAIN cat=[android.intent.category.LAUNCHER] flg=0x10000000 cmp=com.zapmobilegames.herculaneum/.Herculaneum }
    04-25 20:06:44.873: DEBUG/AndroidRuntime(691): Shutting down VM
    04-25 20:06:44.873: DEBUG/dalvikvm(691): Debugger has detached; object registry had 1 entries
    04-25 20:06:44.883: INFO/AndroidRuntime(691): NOTE: attach of thread 'Binder Thread #3' failed
    04-25 20:06:44.933: WARN/dalvikvm(691): LinearAlloc 0x0 not freed: 0x410db3a0 len=212
    04-25 20:06:44.973: WARN/dalvikvm(691): LinearAlloc 0x0 not freed: 0x410db478 len=572
    04-25 20:06:45.023: INFO/ActivityManager(164): Start proc com.zapmobilegames.herculaneum for activity com.zapmobilegames.herculaneum/.Herculaneum: pid=727 uid=10066 gids={3003, 1015}
    04-25 20:06:45.153: INFO/ActivityManager(164): Start proc com.google.android.googlequicksearchbox for broadcast com.google.android.googlequicksearchbox/.CorporaUpdateReceiver: pid=732 uid=10038 gids={3003}
    04-25 20:06:45.503: INFO/WindowManager(164): Setting rotation to 1, animFlags=1
    04-25 20:06:45.583: INFO/ActivityManager(164): Config changed: { scale=1.0 imsi=222/99 loc=it_IT touch=3 keys=1/1/2 nav=3/1 orien=2 layout=18 uiMode=17 seq=4}
    04-25 20:06:45.763: INFO/ActivityThread(732): Publishing provider com.google.android.googlequicksearchbox.shortcuts: com.google.android.googlequicksearchbox.ShortcutsProvider
    04-25 20:06:45.803: INFO/ActivityManager(164): Process com.android.voicedialer (pid 707) has died.
    04-25 20:06:45.863: INFO/ActivityThread(732): Publishing provider com.google.android.googlequicksearchbox.google: com.google.android.googlequicksearchbox.google.GoogleSuggestionProvider
    04-25 20:06:46.043: DEBUG/vending(681): [10] LocalAssetDatabase.syncWithPackageManager(): 2 assets for package "com.zapmobilegames.herculaneum": [Ljava.lang.String;@43d0e508
    04-25 20:06:46.323: INFO/ActivityThread(727): Publishing provider com.example.AdContentProvider: com.greystripe.android.sdk.AdContentProvider
    04-25 20:06:47.213: DEBUG/vending(681): [10] LocalAssetDatabase.notifyListener(): -5299042386818461764 / INSTALLED
    04-25 20:06:47.703: DEBUG/vending(681): [10] LocalAssetDatabase.notifyListener(): -3430589060789413441 / INSTALLED
    04-25 20:06:47.773: INFO/ActivityManager(164): Process com.google.android.apps.maps:FriendService (pid 718) has died.

还有这个：

04-25 20:06:47.893: INFO/QC_CORE(92): OMXCORE API - OMX_Init 
04-25 20:06:47.893: INFO/QC_CORE(92): OMXCORE API - OMX_ComponentNameEnum 4060ba2c 128 0
04-25 20:06:47.893: INFO/QC_CORE(92): OMXCORE API - OMX_ComponentNameEnum 4060ba2c 128 1
04-25 20:06:47.893: INFO/QC_CORE(92): OMXCORE API - OMX_ComponentNameEnum 4060ba2c 128 2
04-25 20:06:47.893: INFO/QC_CORE(92): OMXCORE API - OMX_ComponentNameEnum 4060ba2c 128 3
04-25 20:06:47.893: INFO/QC_CORE(92): OMXCORE API - OMX_ComponentNameEnum 4060ba2c 128 4
04-25 20:06:47.893: INFO/QC_CORE(92): OMXCORE API - OMX_ComponentNameEnum 4060ba2c 128 5
04-25 20:06:48.093: INFO/QC_CORE(92): OMXCORE API - OMX_Init 
04-25 20:06:48.093: INFO/QC_CORE(92): OMXCORE API - OMX_ComponentNameEnum 179e0 128 0
04-25 20:06:48.093: INFO/QC_CORE(92): GetRolesOfComponent OMX.qcom.video.decoder.avc
04-25 20:06:48.093: INFO/QC_CORE(92): GetRolesOfComponent OMX.qcom.video.decoder.avc
04-25 20:06:48.093: INFO/QC_CORE(92): OMXCORE API - OMX_ComponentNameEnum 179e0 128 1
04-25 20:06:48.093: INFO/QC_CORE(92): GetRolesOfComponent OMX.qcom.video.decoder.mpeg4
04-25 20:06:48.093: INFO/QC_CORE(92): GetRolesOfComponent OMX.qcom.video.decoder.mpeg4
04-25 20:06:48.093: INFO/QC_CORE(92): OMXCORE API - OMX_ComponentNameEnum 179e0 128 2
04-25 20:06:48.093: INFO/QC_CORE(92): GetRolesOfComponent OMX.qcom.video.decoder.h263
04-25 20:06:48.093: INFO/QC_CORE(92): GetRolesOfComponent OMX.qcom.video.decoder.h263
04-25 20:06:48.093: INFO/QC_CORE(92): OMXCORE API - OMX_ComponentNameEnum 179e0 128 3
04-25 20:06:48.093: INFO/QC_CORE(92): GetRolesOfComponent OMX.qcom.video.encoder.mpeg4
04-25 20:06:48.093: INFO/QC_CORE(92): GetRolesOfComponent OMX.qcom.video.encoder.mpeg4
04-25 20:06:48.093: INFO/QC_CORE(92): OMXCORE API - OMX_ComponentNameEnum 179e0 128 4
04-25 20:06:48.093: INFO/QC_CORE(92): GetRolesOfComponent OMX.qcom.video.encoder.h263
04-25 20:06:48.093: INFO/QC_CORE(92): GetRolesOfComponent OMX.qcom.video.encoder.h263
04-25 20:06:48.093: INFO/QC_CORE(92): OMXCORE API - OMX_ComponentNameEnum 179e0 128 5
04-25 20:06:48.103: ERROR/(92): A component of name 'OMX.qcom.video.decoder.avc' already exists, ignoring this one.
04-25 20:06:48.103: ERROR/(92): A component of name 'OMX.qcom.video.decoder.mpeg4' already exists, ignoring this one.
04-25 20:06:48.103: ERROR/(92): A component of name 'OMX.qcom.video.decoder.h263' already exists, ignoring this one.
04-25 20:06:48.103: ERROR/(92): A component of name 'OMX.qcom.video.encoder.mpeg4' already exists, ignoring this one.
04-25 20:06:48.103: ERROR/(92): A component of name 'OMX.qcom.video.encoder.h263' already exists, ignoring this one.
04-25 20:06:48.763: INFO/ActivityManager(164): Process com.google.android.voicesearch (pid 656) has died.
04-25 20:06:48.833: VERBOSE/Herculaneum(727): Before splash screen

有什么线索吗？如何加快我的应用程序的启动速度？

谢谢您的回复！！！

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1 回答 1

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第 1 步：不要在设备上进行性能测试会导致各种垃圾运行。当这些垃圾开始和停止时，它正在从您的应用程序中窃取 CPU 周期，而您在应用程序级别既无法控制也无法预测。尽可能在干净的设备上进行性能测试——没有应用小部件、没有运行后台服务、没有安装其他应用等。

第 2 步：不要在调试器中运行时进行性能测试。

话虽如此...

时04-25 20:06:44.733，Android 开始启动 Activity。在04-25 20:06:45.023，您的应用程序的进程已启动。那四分之一秒是由于您的设备发生的其他事情。

之间04-25 20:06:45.023-04-25 20:06:47.703将近三秒钟 - 我看到一堆似乎与您的广告提供商有关的东西。暂时禁用它，看看性能是否有所提高。如果是这样，请联系您的广告技术提供商（显然是 Greystripe）。

顺便说一句，04-25 20:06:44.733大约是 4 秒前04-25 20:06:48.833，而不是 6 秒。

于 2011-04-25T18:57:13.687 回答