我在三星设备上发生了奇怪的内存泄漏。如果我做了很多导航，那么它会产生一个带有这个StackTrace的OutOfMemoryException：
Exception: Failed to allocate a 276060 byte allocation with 184864 free bytes and 180KB until OOM
StackTrace:
--- End of managed Java.Lang.OutOfMemoryError stack trace ---
java.lang.OutOfMemoryError: Failed to allocate a 276060 byte allocation with 184864 free bytes and 180KB until OOM
**at dalvik.system.VMRuntime.newNonMovableArray(Native Method)
at android.graphics.Bitmap.nativeCreate(Native Method)
at android.graphics.Bitmap.createBitmap(Bitmap.java:977)
at android.graphics.Bitmap.createBitmap(Bitmap.java:948)
at android.graphics.Bitmap.createBitmap(Bitmap.java:915)
at android.widget.TextView$MagnifierView.getContentsBitmap(TextView.java:14862)
at android.widget.TextView$MagnifierView.<init>(TextView.java:14806)
at android.widget.TextView.getMagnifierView(TextView.java:14707)**
at android.widget.Editor.onDetachedFromWindow(Editor.java:469)
at android.widget.TextView.onDetachedFromWindowInternal(TextView.java:6224)
at android.view.View.dispatchDetachedFromWindow(View.java:16766)
at android.view.ViewGroup.removeAllViewsInLayout(ViewGroup.java:5154)
at md58b29b5ebe7ec5add1ba4eaa7f6c6bb96.EventDetailsView_1.n_onDestroy(Native Method)
at md58b29b5ebe7ec5add1ba4eaa7f6c6bb96.EventDetailsView_1.onDestroy(EventDetailsView_1.java:47)
at android.app.Activity.performDestroy(Activity.java:7210)
at android.app.Instrumentation.callActivityOnDestroy(Instrumentation.java:1161)
at android.app.ActivityThread.performDestroyActivity(ActivityThread.java:4621)
at android.app.ActivityThread.handleDestroyActivity(ActivityThread.java:4661)
at android.app.ActivityThread.-wrap7(ActivityThread.java)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1703)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:154)
at android.app.ActivityThread.main(ActivityThread.java:6776)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1520)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1410)
有没有人知道这些线（见下文）做什么以及为何它在被销毁时分配内存（Bitmap）？
at dalvik.system.VMRuntime.newNonMovableArray(Native Method)
at android.graphics.Bitmap.nativeCreate(Native Method)
at android.graphics.Bitmap.createBitmap(Bitmap.java:977)
at android.graphics.Bitmap.createBitmap(Bitmap.java:948)
at android.graphics.Bitmap.createBitmap(Bitmap.java:915)
at android.widget.TextView$MagnifierView.getContentsBitmap(TextView.java:14862)
at android.widget.TextView$MagnifierView.<init>(TextView.java:14806)
at android.widget.TextView.getMagnifierView(TextView.java:14707)**
据我所知，在我的测试中，即使在调用OnDestroyed或Finish之后，活动也会保留在内存中。如果我向后导航并等待一分钟，我会看到自由记忆再次攀升。否则，分配的内存会变得更大，并且在某些时候没有足够的空间来执行另一次导航，因此系统会通过销毁旧活动来尝试释放内存。但是这个活动是分配内存（MagnifierView），它在Destroy-Process期间不是免费的。
当我在Xperia Z5上执行相同操作时，内存会在后退导航后立即释放。