Question

我试图在setVisibility功能完成它的工作后做某事，无论如何我能做到吗？因为OnSystemUiVisibilityChangeListener不是我需要的，我找不到允许我这样做的任何方法！

Answer 1

如下所示：

ViewTreeObserver.html#addOnGlobalLayoutListener：

注册要在全局布局状态或时调用的回调视图树中视图的可见性发生变化

因此，您可以将addOnGlobalLayoutListener添加到ImageView，例如：

imageView.setTag(imageView.getVisibility());
....
@Override
    public void onGlobalLayout() {
        int visibility = imageView.getVisibility();
        if(Integer.parseInt(imageView.getTag()) != visibility)
        {
            // visibility changes...
        }
    }
 ....

Answer 2

你可以试试这个，它会在每次布局改变时被触发

elasticdump \
  --input=http://localhost:9200/prod-index \
  --output=http://localhost:9200/local-index \
  --type=data \
  --ignore-errors \
  --maxSockets=5

But it only dumped the first 100 objects and then gave error like
Wed, 08 Jun 2016 22:35:30 GMT | starting dump
Wed, 08 Jun 2016 22:35:30 GMT | got 100 objects from source elasticsearch (offset: 0)
Wed, 08 Jun 2016 22:35:30 GMT | sent 100 objects to destination file, wrote 100
Wed, 08 Jun 2016 22:35:31 GMT | Error Emitted => <html>
<head><title>404 Not Found</title></head>
<body bgcolor="white">
<center><h1>404 Not Found</h1></center>
<hr><center>nginx</center>
</body>
</html>

Wed, 08 Jun 2016 22:35:31 GMT | got 0 objects from source elasticsearch (offset: 100)
Wed, 08 Jun 2016 22:35:31 GMT | Total Writes: 100
Wed, 08 Jun 2016 22:35:31 GMT | dump complete

如何在ImageView VisibiltyChanged上收听

2 个答案: