This mod will make you able to instantly kill app activity by long press on menu button
Needed tools:
1) Backsmali/Smali program from
here
2) Notepad++ program from
here
3) WinRAR or
7-zip archiver
The procedure:
- Backsmali
android.policy.jar
- Navigate to classout/com/android/internal/policy/impl/ folder and open
PhoneWindowManager.smali file
- Locate the following code by tracking "
mMenuLongPress" and do the following changes:
before:
Code:
.line 1674
new-instance v0, Lcom/android/internal/policy/impl/PhoneWindowManager$[B][COLOR="Red"]9[/COLOR][/B];
invoke-direct {v0, p0}, Lcom/android/internal/policy/impl/PhoneWindowManager$[B][COLOR="Red"]9[/COLOR][/B];-><init>(Lcom/android/internal/policy/impl/PhoneWindowManager;)V
iput-object v0, p0, Lcom/android/internal/policy/impl/PhoneWindowManager;->mMenuLongPress:Ljava/lang/Runnable;
after:
Code:
.line 1674
new-instance v0, Lcom/android/internal/policy/impl/PhoneWindowManager$[B][COLOR="Blue"]KillConcept[/COLOR][/B];
invoke-direct {v0, p0}, Lcom/android/internal/policy/impl/PhoneWindowManager$[B][COLOR="Blue"]KillConcept[/COLOR][/B];-><init>(Lcom/android/internal/policy/impl/PhoneWindowManager;)V
iput-object v0, p0, Lcom/android/internal/policy/impl/PhoneWindowManager;->mMenuLongPress:Ljava/lang/Runnable;
- Save changes.
- Now add this new file
(PhoneWindowManager$KillConcept.smali) to classout/com/android/internal/policy/impl/ folder. You can download it from
here.
- Now recompile (smali) the classout folder and open android.policy.jar by WinRAR or 7-zip and substitute classes.dex inside android.policy.jar with the new classes.dex file.. now push the modified android.policy.jar to your device and fix permissions to chmod 644.
Extra step:
To adjust timeout delay, backsmali
framework.jar and navigate to classout/android/view/ folder and open
ViewConfiguration.smali and search for this method and change RED text value:
Code:
.method public static getGlobalActionKeyTimeout()J
.registers 2
.prologue
.line 669
const-wide/16 v0, [B][COLOR="Red"]0x1f4[/COLOR][/B]
return-wide v0
.end method
As you can see, this hex value means 500; i.e, 0.5 second.. So we will change it to which delay we want:
0x1f4 = 0.5 second (default value)
0x2ee = 0.75 second
0x3e8 = 1 second
0x4e2 = 1.25 second
0x5dc = 1.5 second
0x6d6 = 1.75 second
0x7d0 = 2 second
Now you can open any app and then long press the menu button to exit instantly.. 
