如何确定CollapsingToolbar已折叠? [英] How can i determine that CollapsingToolbar is collapsed?

问题描述

我需要知道材料设计库中的CollapsingToolbar何时折叠.

I need to know when CollapsingToolbar from material design library is collapsed.

推荐答案

更新:由于 23.1.1 + 的支持版本不再存在，因此不需要要使用侦听器并禁用滑动刷新布局，它将按预期运行(链接).

UPDATE: Since support versions of 23.1.1+ the issue is no longer there, no need to use the listener and disable the swipe refresh layout, it will work as it should (link).

在您的 AppBarLayout

AppBarLayout appBarLayout = (AppBarLayout) view.findViewById(R.id.app_bar_layout);
appBarLayout.addOnOffsetChangedListener(this);

并检查offset是否为0，这意味着工具栏已完全展开.

And check if offset is 0, meaning the toolbar is fully expanded.

@Override
public void onOffsetChanged(AppBarLayout appBarLayout, int offset)
{
    if (offset == 0)
    {
        // Fully expanded
    }
    else
    {
        // Not fully expanded or collapsed
    }
}

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