Android OOM For Bitmap with image Capture

过去3天我一直在与这种“内存泄漏”进行不间断的斗争,虽然我简化了应用程序的其他部分,但这个问题仍然存在。 首先我想做什么。我正在使用EXTRA_OUTPUT为IMAGE_CAPTURE触发一个Intent,以将图像保存到文件中。然后,我为用户显示按2的顺序缩小的返回图像,让他选择图像的正方形部分。一旦他选择了它,他就被带到另一个Activity,让他用一些文本等标记图像,并最终使用HTTPPost将所有内容上传到服务器。 现在,一切都很好!我可以通过它,一切正常,没有任何问题。但是,如果我尝试拍摄另一张照片,我总会得到一个内存异常。这是Logcat发布的最新时间
02-18 19:07:19.498: ERROR/dalvikvm-heap(6385): 1040400-byte external allocation too large for this process.
02-18 19:07:19.498: ERROR/GraphicsJNI(6385): VM won't let us allocate 1040400 bytes
02-18 19:07:19.498: DEBUG/AndroidRuntime(6385): Shutting down VM
02-18 19:07:19.498: WARN/dalvikvm(6385): threadid=1: thread exiting with uncaught exception (group=0x4001d7f0)
02-18 19:07:19.518: ERROR/AndroidRuntime(6385): FATAL EXCEPTION: main
02-18 19:07:19.518: ERROR/AndroidRuntime(6385): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.hitpost/com.hitpost.SharePicture}: android.view.InflateException: Binary XML file line #29: Error inflating class <unknown>
02-18 19:07:19.518: ERROR/AndroidRuntime(6385):     at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2663)
02-18 19:07:19.518: ERROR/AndroidRuntime(6385):     at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2679)
02-18 19:07:19.518: ERROR/AndroidRuntime(6385):     at android.app.ActivityThread.access$2300(ActivityThread.java:125)
02-18 19:07:19.518: ERROR/AndroidRuntime(6385):     at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2033)
02-18 19:07:19.518: ERROR/AndroidRuntime(6385):     at android.os.Handler.dispatchMessage(Handler.java:99)
02-18 19:07:19.518: ERROR/AndroidRuntime(6385):     at android.os.Looper.loop(Looper.java:123)
02-18 19:07:19.518: ERROR/AndroidRuntime(6385):     at android.app.ActivityThread.main(ActivityThread.java:4627)
02-18 19:07:19.518: ERROR/AndroidRuntime(6385):     at java.lang.reflect.Method.invokeNative(Native Method)
02-18 19:07:19.518: ERROR/AndroidRuntime(6385):     at java.lang.reflect.Method.invoke(Method.java:521)
02-18 19:07:19.518: ERROR/AndroidRuntime(6385):     at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:858)
02-18 19:07:19.518: ERROR/AndroidRuntime(6385):     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616)
02-18 19:07:19.518: ERROR/AndroidRuntime(6385):     at dalvik.system.NativeStart.main(Native Method)
02-18 19:07:19.518: ERROR/AndroidRuntime(6385): Caused by: android.view.InflateException: Binary XML file line #29: Error inflating class <unknown>
02-18 19:07:19.518: ERROR/AndroidRuntime(6385):     at android.view.LayoutInflater.createView(LayoutInflater.java:513)
02-18 19:07:19.518: ERROR/AndroidRuntime(6385):     at com.android.internal.policy.impl.PhoneLayoutInflater.onCreateView(PhoneLayoutInflater.java:56)
02-18 19:07:19.518: ERROR/AndroidRuntime(6385):     at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:563)
02-18 19:07:19.518: ERROR/AndroidRuntime(6385):     at android.view.LayoutInflater.rInflate(LayoutInflater.java:618)
02-18 19:07:19.518: ERROR/AndroidRuntime(6385):     at android.view.LayoutInflater.rInflate(LayoutInflater.java:621)
02-18 19:07:19.518: ERROR/AndroidRuntime(6385):     at android.view.LayoutInflater.inflate(LayoutInflater.java:407)
02-18 19:07:19.518: ERROR/AndroidRuntime(6385):     at android.view.LayoutInflater.inflate(LayoutInflater.java:320)
02-18 19:07:19.518: ERROR/AndroidRuntime(6385):     at android.view.LayoutInflater.inflate(LayoutInflater.java:276)
02-18 19:07:19.518: ERROR/AndroidRuntime(6385):     at com.android.internal.policy.impl.PhoneWindow.setContentView(PhoneWindow.java:198)
02-18 19:07:19.518: ERROR/AndroidRuntime(6385):     at android.app.Activity.setContentView(Activity.java:1647)
02-18 19:07:19.518: ERROR/AndroidRuntime(6385):     at com.hitpost.SharePicture.onCreate(SharePicture.java:90)
02-18 19:07:19.518: ERROR/AndroidRuntime(6385):     at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1047)
02-18 19:07:19.518: ERROR/AndroidRuntime(6385):     at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2627)
02-18 19:07:19.518: ERROR/AndroidRuntime(6385):     ... 11 more
02-18 19:07:19.518: ERROR/AndroidRuntime(6385): Caused by: java.lang.reflect.InvocationTargetException
02-18 19:07:19.518: ERROR/AndroidRuntime(6385):     at android.widget.ImageView.<init>(ImageView.java:108)
02-18 19:07:19.518: ERROR/AndroidRuntime(6385):     at java.lang.reflect.Constructor.constructNative(Native Method)
02-18 19:07:19.518: ERROR/AndroidRuntime(6385):     at java.lang.reflect.Constructor.newInstance(Constructor.java:446)
02-18 19:07:19.518: ERROR/AndroidRuntime(6385):     at android.view.LayoutInflater.createView(LayoutInflater.java:500)
02-18 19:07:19.518: ERROR/AndroidRuntime(6385):     ... 23 more
02-18 19:07:19.518: ERROR/AndroidRuntime(6385): Caused by: java.lang.OutOfMemoryError: bitmap size exceeds VM budget
02-18 19:07:19.518: ERROR/AndroidRuntime(6385):     at android.graphics.Bitmap.nativeCreate(Native Method)
02-18 19:07:19.518: ERROR/AndroidRuntime(6385):     at android.graphics.Bitmap.createBitmap(Bitmap.java:468)
02-18 19:07:19.518: ERROR/AndroidRuntime(6385):     at android.graphics.Bitmap.createBitmap(Bitmap.java:435)
02-18 19:07:19.518: ERROR/AndroidRuntime(6385):     at android.graphics.Bitmap.createScaledBitmap(Bitmap.java:340)
02-18 19:07:19.518: ERROR/AndroidRuntime(6385):     at android.graphics.BitmapFactory.finishDecode(BitmapFactory.java:488)
02-18 19:07:19.518: ERROR/AndroidRuntime(6385):     at android.graphics.BitmapFactory.decodeStream(BitmapFactory.java:462)
02-18 19:07:19.518: ERROR/AndroidRuntime(6385):     at android.graphics.BitmapFactory.decodeResourceStream(BitmapFactory.java:323)
02-18 19:07:19.518: ERROR/AndroidRuntime(6385):     at android.graphics.drawable.Drawable.createFromResourceStream(Drawable.java:697)
02-18 19:07:19.518: ERROR/AndroidRuntime(6385):     at android.content.res.Resources.loadDrawable(Resources.java:1709)
02-18 19:07:19.518: ERROR/AndroidRuntime(6385):     at android.content.res.TypedArray.getDrawable(TypedArray.java:601)
02-18 19:07:19.518: ERROR/AndroidRuntime(6385):     at android.widget.ImageView.<init>(ImageView.java:118)
02-18 19:07:19.518: ERROR/AndroidRuntime(6385):     ... 27 more
它在最后一个Activity的setContentView上失败,因为它向用户显示一次图片,但无论如何都无法再显示它。 我真的很感激帮助! 更新 我一直在多个手机上测试这个问题,唯一一个看起来这样做的是带有Froyo的Nexus One。适用于三星Captivate 2.1,对于Moto Milestone 2.1上的这个问题不会崩溃。 另外,我需要一个500 x 500的图像,所以我不能缩小2倍以上的因子。     
已邀请:
在BitmapFactory OOM上看到我的回答让我疯狂。 您的位图数据位于本机堆中,而不是VM堆中。因此显式VM垃圾收集将不起作用。 本机堆是垃圾收集的,但不太频繁/积极。我们发现的唯一方法是 监视本机堆(根据上面的链接)以确保您没有遇到OOM异常 当你不需要它们时(通过这样做来回收原生堆中的空间)释放位图(正如你所做的那样) mBitmap.recycle(); mBitmap = null;     
您应该尝试将Bitmap对象包装在
SoftReference
对象中,以便在内存不足时以及当您的应用程序未在当前活动中使用该图像时由OS回收它。此外,您应该考虑在活动更改时放弃图像占用的内存,并且当您恢复与该特定图像的活动时,应该再次从文件重新加载图像。     

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