Android的片段：回收位图 [英] android fragment: recycle bitmap

问题描述

我使用的是 DialogFragment 从兼容包。我有一个位图，我需要在对话框关闭时回收，但是当我打电话 findViewByID（）在 onDestroyView（）则返回null。我也试图保持到视图的引用从 onCreateView（）但它也是空的时候 onDestroyView（）被调用。

I am using a DialogFragment from the compatibility package. I have a Bitmap which I need to recycle when the dialog closes, but when I call findViewByID() inside onDestroyView() it returns null. I have also tried keeping a reference to the view from onCreateView() but it is also null by the time onDestroyView() is called.

我怎么能回收位图的一个 DialogFragment 当片段关闭？

How can I recycle a bitmap in a DialogFragment when the fragment closes?

推荐答案

onDestroyView（）允许片段清理与显示有关的资源，尝试在onDismiss或在onDestroyView之前调用其他方法来回收位图

onDestroyView() allows the fragment to clean up resources associated with its View, try to recycle bitmap in onDismiss or in other method that called before onDestroyView

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