PhoneStateListener内存泄漏-android [英] PhoneStateListener memory leak - android

问题描述

我的应用程序运行多次后，内存出现问题.

I am having issue with memory after running many times my app.

java.lang.OutOfMemoryError:位图大小超出VM预算

我发现我以某种方式泄漏了内存，所以我做了一个DUMP HPROF文件，并使用MAT工具找出了问题所在. 事实证明，在运行5次应用程序并退出后，我发现5个Activity实例和5个PhoneStateListener实例.

I figure I was leaking memory somehow so I did a DUMP HPROF file and used the MAT tool to figure out what was wrong. It turns out that after running like 5 times the app and quiting, I find 5 instances of my Activity and 5 instances of PhoneStateListener.

如果我删除对PhoneStateListener的呼叫，则不再存在该问题，并且仅看到我的Activity的一个实例.

If I remove the call to PhoneStateListener, I don't have that issue anymore and I see just 1 instance of my Activity.

问题是，我该如何解决?

The question is, how do I resolve this?

谢谢

丹尼尔

这是我的代码:

OnCreate方法:

OnCreate method:

telephonyManager.listen(mPhoneListener,
                PhoneStateListener.LISTEN_SERVICE_STATE
                | PhoneStateListener.LISTEN_SIGNAL_STRENGTH
                | PhoneStateListener.LISTEN_CALL_STATE
                | PhoneStateListener.LISTEN_DATA_CONNECTION_STATE
                | PhoneStateListener.LISTEN_DATA_ACTIVITY); 

关于活动"类:

PhoneStateListener mPhoneListener = new PhoneStateListener() {
        public void onCallStateChanged(int state,
                java.lang.String incomingNumber) {
        //do something
    }
}

关于onDestroy方法:

on onDestroy method:

telephonyManager.listen(mPhoneListener, PhoneStateListener.LISTEN_NONE);        
mPhoneListener = null;

推荐答案

onDestroy不能保证被调用.来源: onDestroy文档

onDestroy is not guaranteed to get called. Source: onDestroy Docs

您应该尝试清理onPause，然后onResume重新设置您需要的内容.这将有助于清除一些内存压力和泄漏.

You should try cleaning up on onPause and then onResume re-instate the stuff you need. This will help clean up some memory pressure and leaks.

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