在Android中,要查看客戶端Binder的連接數(shù),可以通過dumpsys
命令結(jié)合service
參數(shù)來獲取相關(guān)信息。請按照以下步驟進(jìn)行操作:
-
連接到設(shè)備的計(jì)算機(jī)上,打開命令行終端。
-
使用
adb shell
命令進(jìn)入設(shè)備的Shell環(huán)境。 -
執(zhí)行以下命令來查看服務(wù)的信息:
Copy
dumpsys activity services ``` 該命令將列出設(shè)備上所有活動的服務(wù)信息,包括服務(wù)的名稱、PID(進(jìn)程ID)等。
-
在輸出中找到您感興趣的服務(wù),并查看其詳細(xì)信息。通常,客戶端Binder連接數(shù)會在服務(wù)的詳細(xì)信息中列出。
例如,如果要查看名為"com.example.myapp.MyService"的服務(wù)的客戶端Binder連接數(shù),可以使用以下命令:
Copy
dumpsys activity services | grep "com.example.myapp.MyService"
這將過濾輸出,只顯示包含所查找服務(wù)名稱的行。
在輸出中,您可能會找到類似以下的行:
Copy
Client Bindings: [com.example.client1.IBinderConnection] @ 0x12345678 (pid=123, uid=456) Client Bindings: [com.example.client2.IBinderConnection] @ 0x87654321 (pid=789, uid=987)
上述行顯示了與服務(wù)綁定的客戶端Binder連接數(shù),每個(gè)連接對應(yīng)一個(gè)客戶端。通過計(jì)數(shù)這些行,您可以確定客戶端Binder的連接數(shù)。
請注意,對于非系統(tǒng)應(yīng)用程序,您可能只能查看與自己應(yīng)用程序相關(guān)的服務(wù)信息。而對于系統(tǒng)級服務(wù),可能需要具有root權(quán)限或系統(tǒng)簽名才能查看其詳細(xì)信息。
dumpsys activity 功能查看
dumpsys activity -h
Activity manager dump options:
? [-a] [-c] [-p PACKAGE] [-h] [WHAT] ...
? WHAT may be one of:
? ? a[ctivities]: activity stack state
? ? r[recents]: recent activities state
? ? b[roadcasts] [PACKAGE_NAME] [history [-s]]: broadcast state
? ? broadcast-stats [PACKAGE_NAME]: aggregated broadcast statistics
? ? i[ntents] [PACKAGE_NAME]: pending intent state
? ? p[rocesses] [PACKAGE_NAME]: process state
? ? o[om]: out of memory management
? ? perm[issions]: URI permission grant state
? ? prov[iders] [COMP_SPEC ...]: content provider state
? ? provider [COMP_SPEC]: provider client-side state
? ? s[ervices] [COMP_SPEC ...]: service state
? ? allowed-associations: current package association restrictions
? ? as[sociations]: tracked app associations
? ? exit-info [PACKAGE_NAME]: historical process exit information
? ? lmk: stats on low memory killer
? ? lru: raw LRU process list
? ? binder-proxies: stats on binder objects and IPCs
? ? settings: currently applied config settings
? ? service [COMP_SPEC]: service client-side state
? ? package [PACKAGE_NAME]: all state related to given package
? ? all: dump all activities
? ? top: dump the top activity
? WHAT may also be a COMP_SPEC to dump activities.
? COMP_SPEC may be a component name (com.foo/.myApp),
? ? a partial substring in a component name, a
? ? hex object identifier.
? -a: include all available server state.
? -c: include client state.
? -p: limit output to given package.
? --checkin: output checkin format, resetting data.
? --C: output checkin format, not resetting data.
? --proto: output dump in protocol buffer format.
? --dump-dumpable: dump just the DUMPABLE-related state of an activity. Use the --list-dumpables option to list the supported DUMPABLEs
? --list-dumpables: show the available dumpables in an activity
exit-info [PACKAGE_NAME]? 可以查看應(yīng)用退出的時(shí)間,原因等信息,
binder-proxies 可以來查看應(yīng)用中binder proxy情況文章來源:http://www.zghlxwxcb.cn/news/detail-696081.html
dumpsys activity 信息量很大,是非常強(qiáng)大的工具,也是學(xué)習(xí)了解AMS的一個(gè)很好的切入點(diǎn)文章來源地址http://www.zghlxwxcb.cn/news/detail-696081.html
到了這里,關(guān)于【Android】功能豐富的dumpsys activity的文章就介紹完了。如果您還想了解更多內(nèi)容,請?jiān)谟疑辖撬阉鱐OY模板網(wǎng)以前的文章或繼續(xù)瀏覽下面的相關(guān)文章,希望大家以后多多支持TOY模板網(wǎng)!