Skip to content

Instantly share code, notes, and snippets.

@qihnus
Created February 25, 2012 17:23
Show Gist options
  • Save qihnus/1909616 to your computer and use it in GitHub Desktop.
Save qihnus/1909616 to your computer and use it in GitHub Desktop.
a minimalist example of Android accessibility service
$ adb logcat -s RecorderService
--------- beginning of /dev/log/system
--------- beginning of /dev/log/main
V/RecorderService( 1841): onServiceConnected
...
V/RecorderService( 1841): onAccessibilityEvent: [type] TYPE_VIEW_CLICKED [class] android.widget.Button [package] com.example [time] 7710428 [text] Activity1
V/RecorderService( 1841): onAccessibilityEvent: [type] TYPE_VIEW_FOCUSED [class] android.widget.EditText [package] com.example [time] 7710521 [text]
V/RecorderService( 1841): onAccessibilityEvent: [type] TYPE_WINDOW_STATE_CHANGED [class] com.example.Activity1 [package] com.example [time] 7710536 [text] TestRecord
V/RecorderService( 1841): onAccessibilityEvent: [type] TYPE_VIEW_FOCUSED [class] android.widget.EditText [package] com.example [time] 7710539 [text]
V/RecorderService( 1841): onAccessibilityEvent: [type] TYPE_VIEW_CLICKED [class] android.widget.EditText [package] com.example [time] 7725471 [text]
V/RecorderService( 1841): onAccessibilityEvent: [type] TYPE_VIEW_TEXT_CHANGED [class] android.widget.EditText [package] com.example [time] 7728589 [text] f
V/RecorderService( 1841): onAccessibilityEvent: [type] TYPE_VIEW_TEXT_CHANGED [class] android.widget.EditText [package] com.example [time] 7728804 [text] fg
V/RecorderService( 1841): onAccessibilityEvent: [type] TYPE_VIEW_TEXT_CHANGED [class] android.widget.EditText [package] com.example [time] 7728994 [text] fgj
...
import android.accessibilityservice.AccessibilityService;
import android.accessibilityservice.AccessibilityServiceInfo;
import android.util.Log;
import android.view.accessibility.AccessibilityEvent;
public class RecorderService extends AccessibilityService {
static final String TAG = "RecorderService";
private String getEventType(AccessibilityEvent event) {
switch (event.getEventType()) {
case AccessibilityEvent.TYPE_NOTIFICATION_STATE_CHANGED:
return "TYPE_NOTIFICATION_STATE_CHANGED";
case AccessibilityEvent.TYPE_VIEW_CLICKED:
return "TYPE_VIEW_CLICKED";
case AccessibilityEvent.TYPE_VIEW_FOCUSED:
return "TYPE_VIEW_FOCUSED";
case AccessibilityEvent.TYPE_VIEW_LONG_CLICKED:
return "TYPE_VIEW_LONG_CLICKED";
case AccessibilityEvent.TYPE_VIEW_SELECTED:
return "TYPE_VIEW_SELECTED";
case AccessibilityEvent.TYPE_WINDOW_STATE_CHANGED:
return "TYPE_WINDOW_STATE_CHANGED";
case AccessibilityEvent.TYPE_VIEW_TEXT_CHANGED:
return "TYPE_VIEW_TEXT_CHANGED";
}
return "default";
}
private String getEventText(AccessibilityEvent event) {
StringBuilder sb = new StringBuilder();
for (CharSequence s : event.getText()) {
sb.append(s);
}
return sb.toString();
}
@Override
public void onAccessibilityEvent(AccessibilityEvent event) {
Log.v(TAG, String.format(
"onAccessibilityEvent: [type] %s [class] %s [package] %s [time] %s [text] %s",
getEventType(event), event.getClassName(), event.getPackageName(),
event.getEventTime(), getEventText(event)));
}
@Override
public void onInterrupt() {
Log.v(TAG, "onInterrupt");
}
@Override
protected void onServiceConnected() {
super.onServiceConnected();
Log.v(TAG, "onServiceConnected");
AccessibilityServiceInfo info = new AccessibilityServiceInfo();
info.flags = AccessibilityServiceInfo.DEFAULT;
info.eventTypes = AccessibilityEvent.TYPES_ALL_MASK;
info.feedbackType = AccessibilityServiceInfo.FEEDBACK_GENERIC;
setServiceInfo(info);
}
}
@dedsec1911
Copy link

dedsec1911 commented Aug 18, 2018

I have a server based realtime keylogger, the issue is when I type in passwords it sends null value to the server ! What can I do to fix this ?
The code is written on android and keystrokes are monitored by Accessibility Event handler.

@AndroidDeveloperLB
Copy link

In which cases do "onInterrupt" get called? Isn't it the same as "onDestroy" ? I thought that the OS will try to keep it alive as long as possible, no?

@NehaMadiwal
Copy link

For me this doesn't give any events for Compose views but for xml views this works. Is there anything extra that we need to do to make it work with compose views?

Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment