The content of the adapter has changed but ListView did not receive a notification.

在Android编程中使用Adapter时,【偶尔】会出现如下错误:
The content of the adapter has changed but ListView did not receive a notification. Make sure the content of your adapter is not modified from a background thread, but only from the UI thread。
 
DDMS中的log也无法定位到准确的出错位置。检查错误可以从下面几点入手:
1、检查Thread,确定没有在Background thread中直接调用adapter,如果有,请移除相关代码到Handler中处理;
2、尽量将数据放在adapter类中管理,不需要的时候清除信息(勤写clear()),及时用notifyDataSetChanged()刷新;
3、在Activity或者Fragment合适的位置(onPause/onStop)要及时检查thread,有adapter数据处理相关的应马上停止;
4、这个错误经常出现在Activity休眠起来之后,主要还是使用adapter不太小心造成的。如果实在找不到原因,在onPause()函数中停止所有的background thread,并且在onResume()函数最前面清空adapter中的数据,并且adapter.notifyDataSetChanged()。然后重新更新加载数据,这样一般可以解决问题。
 
希望有帮助。

转载于:https://www.cnblogs.com/LiuSiyuan/archive/2012/07/30/2614775.html

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