Sam在看相关PackageManager代码时,无意中发现Android 下提供一个pm命令,通常放在/system/bin/下。这个命令与Package有关,且非常实用。所以研究之。
0. Usage:

usage: pm [list|path|install|uninstall]
       pm list packages [-f]
       pm list permission-groups
       pm list permissions [-g] [-f] [-d] [-u] [GROUP]
       pm list instrumentation [-f] [TARGET-PACKAGE]
       pm list features
       pm path PACKAGE
       pm install [-l] [-r] [-t] [-i INSTALLER_PACKAGE_NAME] [-s] [-f] PATH
       pm uninstall [-k] PACKAGE
       pm enable PACKAGE_OR_COMPONENT
       pm disable PACKAGE_OR_COMPONENT
       pm setInstallLocation [0/auto] [1/internal] [2/external]
 
The list packages command prints all packages.  Options:
  -f: see their associated file.
 
The list permission-groups command prints all known
permission groups.
 
The list permissions command 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.
 
The list instrumentation command prints all instrumentations,
or only those that target a specified package.  Options:
  -f: see their associated file.
 
The list features command prints all features of the system.
 
The path command prints the path to the .apk of a package.
 
The install command installs a package to the system.  Options:
  -l: install the package with FORWARD_LOCK.
  -r: reinstall an exisiting app, keeping its data.
  -t: allow test .apks to be installed.
  -i: specify the installer package name.
  -s: install package on sdcard.
  -f: install package on internal flash.
 
The uninstall command removes a package from the system. Options:
  -k: keep the data and cache directories around.
after the package removal.
 
The enable and disable commands change the enabled state of
a given package or component (written as “package/class”).
 
The getInstallLocation command gets 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
 
The setInstallLocation command changes the default install location
  0 [auto]: Let system decide the best location
  1 [internal]: Install on internal device storage
  2 [external]: Install on external media

1. 具体使用方法
1.1:察看已安装的包:
pm list package
此时则显示所有已经安装的包名。

pm list package -f
也显示associated文件所在目录(即保存的APK文件)

1.2:察看已知的权限组:
pm list permission-groups

1.3:察看所有已知的权限
pm list permissions

1.4:列出所有硬件相关信息
pm list features

结果通常类似:

feature:reqGlEsVersion=0x20000
feature:android.hardware.bluetooth
feature:android.hardware.camera
feature:android.hardware.location
feature:android.hardware.location.network
feature:android.hardware.microphone
feature:android.hardware.sensor.accelerometer
feature:android.hardware.sensor.compass
feature:android.hardware.touchscreen
feature:android.hardware.wifi

 

1.5:列出指定包名的  associated 文件 (APK存档文件) 所在
例如:
pm path com.TDiJoy.fane
package:/mnt/asec/com.TDiJoy.fane-1/pkg.apk

1.6: 安装APK:
pm install [-l] [-r] [-t] [-i INSTALLER_PACKAGE_NAME] [-s] [-f] PATH

PATH 指 APK文件绝对路径和文件名。

例如:
pm install /data/3dijoy_fane.apk

这几个参数很有用:
-r: 安装一个已经安装的APK,保持其数据不变。
-i:指定安装的包名。(没试出来)
-s: 安装到SDCard上
-f: 安装到内部Flash上。

1.6:卸载APK:
pm uninstall 包名。
例如:
pm uninstall com.TDiJoy.fane

1.7: 得到和设置缺省安装位置:

The getInstallLocation command gets 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
 
The setInstallLocation command changes the default install location
  0 [auto]: Let system decide the best location
  1 [internal]: Install on internal device storage
  2 [external]: Install on external media

pm getInstallLocation
得到缺省的安装位置。

设置:
pm setInstallLocation <0|1|2>

0: 自动。
1:内部Flash。
2:扩展存储设备。

实例:如何在海信2.2 STB上将APK安装到U盘中:
Sam首先尝试使用:
pm setInstallLocation 2
之后安装之,没有用。

后来做如下尝试:

   在其它设置->存储设备->制定默认存储设备中选择U盘为默认存储设备。

    # pm install   -s xxxx.apk

就可以成功。

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本文链接:https://www.cnblogs.com/zhujiabin/p/5303629.html