java.lang.OutOfMemoryError即使在try-catch块？

问题描述

我的应用程序崩溃，显示此logcat中：

java.lang.OutOfMemoryError: (Heap Size=39047KB, Allocated=19932KB)
        at android.graphics.BitmapFactory.nativeDecodeFile(Native Method)
        at android.graphics.BitmapFactory.decodeFile(BitmapFactory.java:373)
        at android.graphics.BitmapFactory.decodeFile(BitmapFactory.java:443)
        at com.mApp.mobileapp.mActivity.onActivityResult(mActivity.java:196)
        at android.support.v4.app.FragmentActivity.onActivityResult(FragmentActivity.java:153)
        at android.app.Activity.dispatchActivityResult(Activity.java:4752)
        at android.app.ActivityThread.deliverResults(ActivityThread.java:3449)
        at android.app.ActivityThread.handleSendResult(ActivityThread.java:3503)
        at android.app.ActivityThread.access$1100(ActivityThread.java:144)
        at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1320)
        at android.os.Handler.dispatchMessage(Handler.java:99)
        at android.os.Looper.loop(Looper.java:156)
        at android.app.ActivityThread.main(ActivityThread.java:5109)
        at java.lang.reflect.Method.invokeNative(Native Method)
        at java.lang.reflect.Method.invoke(Method.java:511)
        at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:991)
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:758)
        at dalvik.system.NativeStart.main(Native Method)

虽然运行此code：

String selectedImagePath = data.getStringExtra("imageByteCode");
try {
    File imageFile = new File(selectedImagePath);
    Bitmap bitmap = BitmapFactory.decodeFile(imageFile
        .getAbsolutePath());//line 196
    ByteArrayOutputStream baos = new ByteArrayOutputStream();
    bitmap.compress(Bitmap.CompressFormat.JPEG, 100, baos);
    base64code = selectedImagePath;
    mImage.setImageBitmap(bitmap);
    } catch (Exception e) {
    }

因为我是赶上了，我从来没有预料到崩溃的应用程序。 selectedImagePath 是SD卡，其中不超过所选图像的路径 3m.b ，但堆大小= 39047KB，分配= 19932KB ？

Since i was catching it, i never expected it to crash the app. selectedImagePath is the path of the selected image on the SD card, which never exceeds 3m.b but Heap Size=39047KB, Allocated=19932KB ??

感谢您

推荐答案

您没抓住。 的OutOfMemoryError 是错误衍生，不是从例外。这是一个错误因为通常一个应用程序是不是应该抓住它，就几乎为零您的应用程序可以做恢复。

You did not catch it. OutOfMemoryError is derived from Error, not from Exception. It is an Error because normally an application is not supposed to catch it, there is close to nothing your application can do to recover.

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