[英]Using AppBarLayout.Behavior.DragCallback to control scroll of collapsing toolbar layout
I want to be able to enable and disable the scroll of collapsing toolbar. 我希望能够启用和禁用折叠工具栏的滚动。 Can anyone show me an example how to use AppBarLayout.Behavior.DragCallback?
谁能给我示范一个如何使用AppBarLayout.Behavior.DragCallback的例子吗?
https://developer.android.com/reference/android/support/design/widget/AppBarLayout.Behavior.DragCallback.html https://developer.android.com/reference/android/support/design/widget/AppBarLayout.Behavior.DragCallback.html
In order to enable/disable the scroll of the collapsing toolbar you can provide a custom DragCallback as part of your AppBarLayout's behavior. 为了启用/禁用折叠工具栏的滚动,您可以在AppBarLayout行为的一部分中提供自定义DragCallback。 Here is a sample code:
这是一个示例代码:
private void setAppBarDragging(final boolean newValue) {
AppBarLayout appBarLayout = (AppBarLayout) findViewById(R.id.appbar_layout);
CoordinatorLayout.LayoutParams params =
(CoordinatorLayout.LayoutParams) appBarLayout.getLayoutParams();
AppBarLayout.Behavior behavior = new AppBarLayout.Behavior();
behavior.setDragCallback(new AppBarLayout.Behavior.DragCallback() {
@Override
public boolean canDrag(AppBarLayout appBarLayout) {
return newValue;
}
});
params.setBehavior(behavior);
}
声明:本站的技术帖子网页,遵循CC BY-SA 4.0协议,如果您需要转载,请注明本站网址或者原文地址。任何问题请咨询:yoyou2525@163.com.