Android :: Phone State Listener Memory Leak

Sep 8, 2009

There appears to be a leak when using PhoneStateListeners. The following code simply reigsters in onResume and unregisters in onPause a PhoneStateListener. Repeatedly launch then press BACK (so the app is finished & onDestory is called before the next launch) and the number of activities reported by meminfo will equal the number of launches. For instance, here is the output I get after launching (and finishing) 11 times in sequence:

dumpsys meminfo com.example.leak Currently running services: meminfo
DUMP OF SERVICE meminfo: Applications Memory Usage (kB): Uptime: 12204322 Realtime: 12204322

** MEMINFO in pid 1358 [com.example.leak] ** native dalvik other total size:
2648 3079 N/A 5727
allocated: 2604 2254 N/A 4858
free: 43 825 N/A 868
(Pss): 913 1305 1475 3693
(shared dirty): 1080 3864 568 5512
(priv dirty): 808 936 1056 2800

Objects Views: 77
ViewRoots: AppContexts: 12
Activities: 11
Assets: 2
AssetManagers: 2
Local Binders: 36
Proxy Binders: 21
Death Recipients: 0
OpenSSL Sockets: 0
SQL heap: 0
dbFiles: 0
numPagers: 0
inactivePageKB: 0
activePageKB: 0 #

Without the PhoneStateListener, the number of activities is always 1 no matter how many times the app is launched & finished. So, am I doing anything wrong here? Or is this a bug in the TelephonyManager?

Here's the code package com.example.leak;

import android.app.Activity; import android.content.Context; import android.os.Bundle; import android.telephony.PhoneStateListener; import android.telephony.TelephonyManager; import android.util.Log;
public class LeakExample extends Activity {
private class MyPhoneStateListener extends PhoneStateListener {
@Override public void onCallStateChanged(int state, String incomingNumber) {
if ((state == TelephonyManager.CALL_STATE_RINGING)
|| (state == TelephonyManager.CALL_STATE_OFFHOOK)) {
LeakExample.this.finish();
} } }
MyPhoneStateListener phone_listener = new MyPhoneStateListener();
TelephonyManager telMgr ;
@Override public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
telMgr = (TelephonyManager) getSystemService (Context.TELEPHONY_SERVICE);
} @Override protected void onPause() { super.onPause();
telMgr.listen(phone_listener, PhoneStateListener.LISTEN_NONE);
} @Override protected void onResume() { super.onResume();
telMgr.listen(phone_listener, PhoneStateListener.LISTEN_CALL_STATE);
} @Override protected void onDestroy() { super.onDestroy();
Log.v("LEAK EXAMPLE", "onDestory");
}

Android :: Phone State Listener Memory Leak


Android :: Phone State Listener State Transitions

Feb 8, 2009

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Nov 11, 2009

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Nov 17, 2009

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Jan 21, 2010

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Jun 27, 2009

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Jan 10, 2010

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Dec 4, 2009

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Oct 14, 2010

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CODE:................

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Nov 24, 2009

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Sep 24, 2009

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Jan 6, 2010

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Aug 10, 2009

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Oct 6, 2010

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Apr 14, 2010

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Android :: Memory Leak - Service Stays Running In Background

Oct 15, 2009

I start a Service from an Activity, the user presses back, the Activity goes away and the Service stays running in the background. However the activity (and it's views) still stay in memory. I tested this with cupcake and G1. To reproduce I've made a simple program.

The activity:
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Oct 20, 2009

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May 3, 2010

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Android :: Debug Memory Leak Where Exception Instances In Heap Dump Have No Inbound References?

Sep 2, 2010

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Dec 5, 2009

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Sep 6, 2010

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Mar 1, 2010

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Jun 3, 2010

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Apr 2, 2010

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Jul 24, 2010

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