内存泄漏监测-LeakCanary
内存泄漏监测方法之使用LeakCanary
LeakCanary出处:
github:https://github.com/square/leakcanary/issues
square 公司
这个公司大名不知道,但你一定知道OKHTTP.
还有很多开源看下图
使用方法:
android studio
添加依赖:
dependencies {
debugCompile 'com.squareup.leakcanary:leakcanary-android:1.5'
releaseCompile 'com.squareup.leakcanary:leakcanary-android-no-op:1.5'
testCompile 'com.squareup.leakcanary:leakcanary-android-no-op:1.5'
}
eclipse:自行下包
使用方法很简单,在application install就可以了。
public class MyApplication extends Application { @Override public void onCreate() { super.onCreate(); LeakCanary.install(this); } }
如如应用存在多个进程,application onreate 会调用多次。这么写是不是有问题。Install多次。
既然是大厂出的东西,他们是已经考虑到了。
看源码:
/** * Creates a {@link RefWatcher} that reports results to the provided service, and starts watching * activity references (on ICS+). */ public static RefWatcher install(Application application, Class<? extends AbstractAnalysisResultService> listenerServiceClass, ExcludedRefs excludedRefs) { //判断是否在Analyzer进程里 if (isInAnalyzerProcess(application)) { return RefWatcher.DISABLED; } enableDisplayLeakActivity(application); HeapDump.Listener heapDumpListener = new ServiceHeapDumpListener(application, listenerServiceClass); RefWatcher refWatcher = androidWatcher(application, heapDumpListener, excludedRefs); ActivityRefWatcher.installOnIcsPlus(application, refWatcher); return refWatcher; }
当然也可以:
if (LeakCanary.isInAnalyzerProcess(this)) {
return;
}
这么判断。
通过以上操作,功能已经可以使用了,十分傻瓜。
上手试试加以下加代码:
public class LoginActivity extends Activity { static Thread t; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_login); t = new Thread(new Runnable() { @Override public void run() { while (true) { } } }); t.start(); finish(); }
结果如下: