Android Inject_Events Permission

Android INJECT_EVENTS permission

Actually, this is pretty simple on a rooted device. I think any app that is running off /system will get access to whatever permissions it requires. So simply manually install your App to /system (as described here http://androidforums.com/droid-all-things-root/64603-installing-apk-system-app-directory.html ):

Execute the following commands in the terminal emulator to remount the /system directory as read/write and to install the application into the /system/app directory from the SDCARD:

su
mount -o remount,rw -t yaffs2 /dev/block/mtdblock3 /system
cp /sdcard/APP.apk /system/app

If you prefer to use adb from your computer, execute these commands:

adb remount
adb shell cp /sdcard/APP.apk /system/app

Several users have utilized root explorer from the Google marketplace to simplify this process.

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Alternatively, check this out: How to compile Android Application with system permissions

Is it possible to grant INJECT_EVENTS permission to an app for dev/testing purposes

The adb shell is not a SU user. use the RunTime to inject shell commands as SU. Use any tool to grant you SU privileges, then execute your command

Process suProcess = Runtime.getRuntime().exec("su pm grant 'app package' android.permission.INJECT_EVENTS");
suProcess.waitFor();

INJECT_EVENTS permission not granted to privileged app

At least in current versions of Android, INJECT_EVENTS is a signature-level permission:

<permission android:name="android.permission.INJECT_EVENTS"
    android:protectionLevel="signature" />

(from the current master branch of the framework manifest)

Your app would need to be signed by the signing key that signed the firmware. Mostly, this is for device manufacturers or custom ROM developers.

Android “Injecting to another application requires INJECT_EVENTS permission”

Is there any solution to fix this without root permission

No, you cannot hold this permission on non-rooted device as this permission is signature based.

android.permission.INJECT_EVENTS

Allows an application to inject user events (keys, touch, trackball)

into the event stream and deliver them to ANY window. Without this

permission, you can only deliver events to windows in your own
process.

Not for use by third-party applications

https://github.com/aosp-mirror/platform_frameworks_base/blob/master/core/res/AndroidManifest.xml#L2515

But it still error application requires INJECT_EVENTS permission

This permission is granted to system apps. 3rd party cannot have it. Unless you sign your app with system certificate, you will not be granted INJECT_EVENTS permission.

Docs here read:

Allows an application to inject user events (keys, touch, trackball)
into the event stream and deliver them to ANY window. Without this
permission, you can only deliver events to windows in your own
process.

Not for use by third-party applications.

Injecting to another application requires INJECT_EVENTS permission Android

I found a solution. Try using mediarecorder using this video: https://www.youtube.com/watch?v=69J2ycNCtpE

Permission: INJECT_EVENTS for Instrumenation to other apps

Update

Use the signtool located here, then go ahead and read on in my blog.

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Ok, I got the right platform-keys and it works like a charm now! I signed using http://forum.xda-developers.com/showthread.php?t=1125626
and replaced (renamed the sign.... to testkey....) the testkeys inside signare folder with

signapk-key.platform.x509.pem
signapk-key.platform.pk8

(Google for them)

Also make sure to zipalign and then to copy to /system/app. Installing the .apk the normal way is NOT possible as it is flagged as System app.

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