从Shell脚本安装APK并启动应用 [英] Install a APK and Launch App from Shell script

问题描述

我的要求是: App A 将运行已经在系统/bin" 位置的shell脚本(myshellscript.sh)，shell脚本将安装 App B 存储在"sdcard/下载" 位置，并将启动应用B .

My Requirement is : App A will Run shell script(myshellscript.sh) that is already in "system/bin" location and shell script will install App B that is stored in "sdcard/Download" location and will launch App B.

所以在继续之前，我想告诉你

So Before continuing further i want to tell you that

1. 我的设备已经植根，因为我已在其中刷新了自定义ROM
2. App A是具有系统特权的系统应用.
3. 当我通过命令运行脚本时，我的脚本可以正常运行:adb shell sh system/bin/myshellscript.sh
4. 我对shell脚本的了解不多.

1. my device is already rooted as i have custom ROM flashed in it
2. App A is a system app having system privilege.
3. My script is working fine as per requirement when i am running my script by command : adb shell sh system/bin/myshellscript.sh
4. I dont have that much knowledge of shell script.

下面是我的shell脚本:

below is my shell script:

#!/bin/bash 
echo "Shell script works on Android"
pm install -r "/sdcard/Download/SampleApplication.apk";
echo "Going to sleep for 15 sec"
sleep 15;
echo "woked up after 15 sec"
am start -n "com.aaa.sampleapplication/.MainActivity";
sleep 5;

问题是，当我通过上述命令运行此脚本时，它的工作正常，但是在按 App A 的按钮单击时以编程方式运行相同的脚本时，除pm install -r "/sdcard/Download/SampleApplication.apk";之外，所有用脚本编写的命令都可以正常工作 我试图运行我的脚本的代码是:

So issue is when i am running this script by command mentioned above its working fine but when running same script programmatically on button click of App A all commands written in script is working except pm install -r "/sdcard/Download/SampleApplication.apk"; Code i am trying to run my script is :

            try
            {
                Runtime rt = Runtime.getRuntime();

                Process proc = rt.exec("sh /system/bin/myshellscript.sh");
                InputStream is = proc.getInputStream();
                InputStreamReader isr = new InputStreamReader(is);
                BufferedReader br = new BufferedReader(isr);
                String line;

                while ((line = br.readLine()) != null) {
                    System.out.println(line);
                }
            } catch (Throwable t)
            {
                t.printStackTrace();
            }

更新: 我捕获了adb日志并出现以下异常:

UPDATE: I captured adb log and getting below exception:

AndroidRuntime: Calling main entry com.android.commands.pm.Pm
11-19 00:37:50.867  7887  7887 E Pm      : Error
11-19 00:37:50.867  7887  7887 E Pm      : java.lang.NullPointerException
11-19 00:37:50.867  7887  7887 E Pm      :  at android.os.Parcel.readException(Parcel.java:1690)
11-19 00:37:50.867  7887  7887 E Pm      :  at android.os.Parcel.readException(Parcel.java:1637)
11-19 00:37:50.867  7887  7887 E Pm      :  at android.content.pm.IPackageInstaller$Stub$Proxy.createSession(IPackageInstaller.java:249)
11-19 00:37:50.867  7887  7887 E Pm      :  at com.android.commands.pm.Pm.doCreateSession(Pm.java:552)
11-19 00:37:50.867  7887  7887 E Pm      :  at com.android.commands.pm.Pm.runInstall(Pm.java:392)
11-19 00:37:50.867  7887  7887 E Pm      :  at com.android.commands.pm.Pm.run(Pm.java:142)
11-19 00:37:50.867  7887  7887 E Pm      :  at com.android.commands.pm.Pm.main(Pm.java:99)
11-19 00:37:50.867  7887  7887 E Pm      :  at com.android.internal.os.RuntimeInit.nativeFinishInit(Native Method)
11-19 00:37:50.867  7887  7887 E Pm      :  at com.android.internal.os.RuntimeInit.main(RuntimeInit.java:277)
11-19 00:37:50.869  7887  7887 I art     : System.exit called, status: 1

推荐答案

通过adb shell执行脚本时，该脚本将在shell许可下运行. Shell具有比您的已沙箱化的应用程序更高的权限.

When execute a script by adb shell, it runs under shell permission. Shell has higher permission than you app which is sandboxed.

这篇关于从Shell脚本安装APK并启动应用的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！