如何将Android SnackBar调整为屏幕上的特定位置 [英] How can you adjust Android SnackBar to a specific position on screen

问题描述

跟随新的android快餐栏，我试图将其设置为位于特定的y坐标上.似乎甚至不可能.

Follwing the new android snackbar, i'm trying to set it to be positioned on a specific y coordinate. Its seems to be not even a possible.

我已经尝试过获取快餐栏视图的父级，但是，对于父级来设置它的位置，没有任何事情要做.

I've tried with getting the parent of the snackbar's view, but, there's nothing to be done to the parent for it to set the position of it.

mSnackBar.getView().getParent();

在研究实际的类时，有一个mView实例和一个mParent实例，它们是私有的，无论如何都无法访问.

When digging into the actual class, there's an instance of mView, and mParent which is private, and can't be reached anyhow.

https://developer.android.com/reference/android/support/design/widget/Snackbar.html

推荐答案

可以通过在现有活动"布局中放置android.support.design.widget.CoordinatorLayout来设置小吃栏的显示位置.

It is possible to set the location that the Snackbar is displayed by positioning a android.support.design.widget.CoordinatorLayout within your existing Activity layout.

例如，假设您的现有布局是RelativeLayout，则可以如下添加CoordinatorLayout:

For example, say your existing layout is a RelativeLayout you could add a CoordinatorLayout as follows:

<android.support.design.widget.CoordinatorLayout
    android:layout_width="match_parent"
    android:layout_height="200dp"
    android:id="@+id/myCoordinatorLayout"
    android:layout_alignParentTop="true"
    android:layout_alignParentLeft="true"
    android:layout_alignParentStart="true">
</android.support.design.widget.CoordinatorLayout>

然后，确保将CoordinatorLayout作为Snackbar.make()命令的第一个参数传递.

Then, make sure you pass the CoordinatorLayout as the first argument of the Snackbar.make() command.

final View viewPos = findViewById(R.id.myCoordinatorLayout);    
Snackbar.make(viewPos, R.string.snackbar_text, Snackbar.LENGTH_LONG)
                            .setAction(R.string.snackbar_action_undo, showListener)
                            .show();

这将导致Snackbar显示在提供给make()函数的CoordinatorLayout的底部.

This will result in the Snackbar being shown at the bottom of the CoordinatorLayout provided to the make() function.

如果传递的不是CoordinatorLayout的View，则Snackbar会沿着树走直到找到CoordinatorLayout或布局的根.

If you pass a View that is not a CoordinatorLayout the Snackbar will walk up the tree until it finds a CoordinatorLayout or the root of the layout.

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