前言
几乎所有应用市场中的 Android 应用，都处于非可调试状态。如果我们需要调试 Android 应用，往往需要反编译对应的 apk , 然后修改 apk 的 AndroidManifest.xml 中的 application 标签，将android:debuggable 属性设置为 true。然后进行回编译
<application android:debuggable="true">
</application>
这样做不仅麻烦，而且如果对应的 app 做了签名校验，可能会使 app 无法正常运行。
在 Android 系统中一个应用能否被调试是这样判断的： 当 android 启动时，系统属性 ro.debuggable 为1，系统中所有的程序都是可以调试的。如果系统中的 ro.debuggable 为 0， 则会判断程序的 AndroidManifest.xml 中 application 标签中的 android:debuggable 属性是否为 true。
所以，我们可以通过修改 default.prop 文件中的 ro.debuggable 属性来调试设备中的所有应用。
下面介绍二种修改 ro.debuggable 的方式
方式一（不推荐）
注入 init 进程，修改内存中的属性值，只要init进程不重启，这些属性值就会生效。但是如果设备重启，则修改的属性值就失效。
前提：需要有 su 命令（root）
具体方法:
- 在 Github 上搜索 mprop，下载对应的 mprop 工具
adb push ./mprop /data/local/tmp将 mprop 推送到手机adb shell进入手机 shellsu切换到 rootcd /data/local/tmp & chmod 777 ./mprop./mprop ro.debuggable 1
方式二 （推荐）
前提：需要先安装 Magisk
具体方法:
- 在 Github 上搜索 MagiskHidePropsConfig，下载对应的 MagiskHidePropsConfig 模块
- 在 Magisk 中安装下载的 MagiskHidePropsConfig 模块并开启
adb shellprops- 输入 5 ，Add/edit custom props
MagiskHide Props Config v6.1.2
by Didgeridoohan @ XDA Developers
=====================================
Select an option below.
=====================================
1 - Edit device fingerprint
2 - Force BASIC key attestation
3 - Device simulation (disabled)
4 - Edit MagiskHide props (active)
5 - Add/edit custom props
6 - Delete prop values
7 - Script settings
8 - Collect logs
u - Perform module update check
r - Reset all options/settings
b - Reboot device
e - Exit
See the module readme or the
support thread @ XDA for details.
Enter your desired option: 5
- 输入 n, New custom prop
MagiskHide Props Config v6.1.2
by Didgeridoohan @ XDA Developers
=====================================
Custom props
Select an option below:
=====================================
Set or edit custom prop values for your device.
Currently no custom props set.
Please add one by selecting
"New custom prop" below.
n - New custom prop
b - Go back to main menu
e - Exit
See the module readme or the
support thread @ XDA for details.
Enter your desired option: n
- 输入 ro.debuggable
MagiskHide Props Config v6.1.2
by Didgeridoohan @ XDA Developers
=====================================
New custom prop
=====================================
Enter the prop to set. Example:
ro.sf.lcd_density
b - Go back
e - Exit
Enter your desired option: ro.debuggable
- 输入 y
MagiskHide Props Config v6.1.2
by Didgeridoohan @ XDA Developers
=====================================
ro.debuggable
=====================================
ro.debuggable is
one of the sensitive props that can be
set by the MagiskHide props option.
Are you sure you want to proceed?
y - Yes
n - No
e - Exit
Enter your desired option: y
- 输入 1
MagiskHide Props Config v6.1.2
by Didgeridoohan @ XDA Developers
=====================================
ro.debuggable
=====================================
Enter the value you want to set
ro.debuggable to,
or select from the options below.
The currently set value is:
0
Please enter the new value.
b - Go back
e - Exit
Enter your desired option: 1
- 输入 y
MagiskHide Props Config v6.1.2
by Didgeridoohan @ XDA Developers
=====================================
ro.debuggable
=====================================
This will set ro.debuggable to:
1
Pick an option below to change
what boot stage the prop will
be set in, or set/reset a delay:
1 - Default (current)
2 - post-fs-data
3 - late_start service
4 - Both boot stages
d - Delay
Do you want to continue?
Enter y(es), n(o), e(xit)
or an option from above: y
Working. Please wait...
Working. Please wait...
Working. Please wait...
Working. Please wait...
Working. Please wait...
MagiskHide Props Config v6.1.2
by Didgeridoohan @ XDA Developers
=====================================
Reboot - ro.debuggable
=====================================
Reboot for changes to take effect.
Do you want to reboot now (y/n)?
Enter y(es), n(o) or e(xit): y
Rebooting...
结语
通过上述两种方式修改 ro.debuggable 的值后，在手机 shell 中输入getprop ro.debuggble 应该会得到 1。此时我们就能愉快地调试手机上的所有 app 了。
