android 命令行執行java 的方式

大家都熟悉android 的安裝命令,pm 

pm
usage: pm list packages [-f] [-d] [-e] [-s] [-3] [-i] [-u] [--user USER_ID] [FILTER]
       pm list permission-groups
       pm list permissions [-g] [-f] [-d] [-u] [GROUP]
       pm list instrumentation [-f] [TARGET-PACKAGE]
       pm list features
       pm list libraries
       pm list users
       pm path PACKAGE
       pm dump PACKAGE
       pm install [-lrtsfd] [-i PACKAGE] [PATH]
       pm install-create [-lrtsfdp] [-i PACKAGE] [-S BYTES]
       pm install-write [-S BYTES] SESSION_ID SPLIT_NAME [PATH]
       pm install-commit SESSION_ID
       pm install-abandon SESSION_ID
       pm uninstall [-k] [--user USER_ID] PACKAGE
       pm set-installer PACKAGE INSTALLER
       pm clear [--user USER_ID] PACKAGE
       pm enable [--user USER_ID] PACKAGE_OR_COMPONENT
       pm disable [--user USER_ID] PACKAGE_OR_COMPONENT
       pm disable-user [--user USER_ID] PACKAGE_OR_COMPONENT
       pm disable-until-used [--user USER_ID] PACKAGE_OR_COMPONENT
       pm hide [--user USER_ID] PACKAGE_OR_COMPONENT
       pm unhide [--user USER_ID] PACKAGE_OR_COMPONENT
       pm grant PACKAGE PERMISSION
       pm revoke PACKAGE PERMISSION
       pm set-install-location [0/auto] [1/internal] [2/external]
       pm get-install-location
       pm set-permission-enforced PERMISSION [true|false]
       pm trim-caches DESIRED_FREE_SPACE
       pm create-user [--profileOf USER_ID] [--managed] USER_NAME
       pm remove-user USER_ID
       pm get-max-users

pm list packages: prints all packages, optionally only
  those whose package name contains the text in FILTER.  Options:
    -f: see their associated file.
    -d: filter to only show disbled packages.
    -e: filter to only show enabled packages.
    -s: filter to only show system packages.
    -3: filter to only show third party packages.
    -i: see the installer for the packages.
    -u: also include uninstalled packages.

pm list permission-groups: prints all known permission groups.

pm list permissions: prints all known permissions, optionally only
  those in GROUP.  Options:
    -g: organize by group.
    -f: print all information.
    -s: short summary.
    -d: only list dangerous permissions.
    -u: list only the permissions users will see.

pm list instrumentation: use to list all test packages; optionally
  supply <TARGET-PACKAGE> to list the test packages for a particular
  application.  Options:
    -f: list the .apk file for the test package.

pm list features: prints all features of the system.

pm list users: prints all users on the system.

pm path: print the path to the .apk of the given PACKAGE.

pm dump: print system state associated with the given PACKAGE.

pm install: install a single legacy package
pm install-create: create an install session
    -l: forward lock application
    -r: replace existing application
    -t: allow test packages
    -i: specify the installer package name
    -s: install application on sdcard
    -f: install application on internal flash
    -d: allow version code downgrade
    -p: partial application install
    -S: size in bytes of entire session

pm install-write: write a package into existing session; path may
  be '-' to read from stdin
    -S: size in bytes of package, required for stdin

pm install-commit: perform install of fully staged session
pm install-abandon: abandon session

pm set-installer: set installer package name

pm uninstall: removes a package from the system. Options:
    -k: keep the data and cache directories around after package removal.

pm clear: deletes all data associated with a package.

pm enable, disable, disable-user, disable-until-used: these commands
  change the enabled state of a given package or component (written
  as "package/class").

pm grant, revoke: these commands either grant or revoke permissions
  to applications.  Only optional permissions the application has
  declared can be granted or revoked.

pm get-install-location: returns the current install location.
    0 [auto]: Let system decide the best location
    1 [internal]: Install on internal device storage
    2 [external]: Install on external media

pm set-install-location: changes the default install location.
  NOTE: this is only intended for debugging; using this can cause
  applications to break and other undersireable behavior.
    0 [auto]: Let system decide the best location
    1 [internal]: Install on internal device storage
    2 [external]: Install on external media

pm trim-caches: trim cache files to reach the given free space.

pm create-user: create a new user with the given USER_NAME,
  printing the new user identifier of the user.

pm remove-user: remove the user with the given USER_IDENTIFIER,
  deleting all data associated with that user

pm 在android 代碼中的外置:

frameworks\base\cmds\pm

Android.mk 的解析:

3LOCAL_PATH:= $(call my-dir)
4include $(CLEAR_VARS)
5
6LOCAL_SRC_FILES := $(call all-subdir-java-files)
7LOCAL_MODULE := pm
8include $(BUILD_JAVA_LIBRARY) //pm.jar編譯出
9
10
11include $(CLEAR_VARS)
12ALL_PREBUILT += $(TARGET_OUT)/bin/pm
13$(TARGET_OUT)/bin/pm : $(LOCAL_PATH)/pm | $(ACP) //拷貝pm 命令爲/system/bin/pm
14	$(transform-prebuilt-to-target)
15

pm 命令代碼爲

1# Script to start "pm" on the device, which has a very rudimentary
2# shell.
3#
4base=/system
5export CLASSPATH=$base/framework/pm.jar
6exec app_process $base/bin com.android.commands.pm.Pm "$@"
7

上面代碼中調用pm.jar 中的Pm 靜態方法,傳入$@ 參數,執行apk 的安裝流程。

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