Snackbar is not dismissing on swipe

问题

i have a snackbar in my appcompat activity. It has a button OK which dismiss the snackbar.It is working perfact. but i can't dismiss the snackbar on swipe(left to right).

Following is my code for snackbar....

final Snackbar snackbar = Snackbar
                                .make(view, "Error Message", Snackbar.LENGTH_INDEFINITE);

                        snackbar.setAction("OK", new View.OnClickListener() {
                                    @Override
                                    public void onClick(View view) {
                                            snackbar.dismiss();
                                    }
                                });

                        snackbar.show();

Edit 1

I have Relative layout as parent layout in my activity's XML layout.

回答1:

Snackbar needs a CoordinatorLayout as its root layout or some where on top of it, to perform its various operations like swipe to dismiss. You need to have that some where in your layout hierarchy.

Further the view that we pass in the Snackbar.make() method is used to search a CoordinatorLayout some where in the view hierarchy. The method traverse from this view to the root view to find a CoordinatorLayout over which it can show the snackbar and perform its animations and operations.

So try replacing root layout to CoordinatorLayout and your problem will be solved.

回答2:

I've written a library that supports swipe to dimiss behaviour even without providing CoordinatorLayout. Users can swipe both left or right to dismiss it (you can only swipe to right originally). It also includes progressBar and other stuff. Try it out https://github.com/tingyik90/snackprogressbar.

All you need to do is to create a SnackProgressBar and allow swipe to dismiss. Sample code:

SnackProgressBar messageType = new SnackProgressBar(
        SnackProgressBar.TYPE_MESSAGE, "Your message")
        .setSwipeToDismiss(true)

回答3:

As a reference to Ashwani Kumars answer. I saw Intimate asked if there is a way to implement this with LinearLayout. Well simple wrap your original LinearLayout with a CoordinatorLayout with match_parent in android:layout_height and android:layout_width attributes.

this will keep your original arrangement and still make sure the Snackbar is swipable.

Snackbar will now look like this:

For fragments -

Snackbar.make(getView(), "Error Message", Snackbar.LENGTH_INDEFINITE);

For activities -

Snackbar.make(this.findViewById(android.R.id.content), "Error Message",  Snackbar.LENGTH_INDEFINITE);

Assuming you wraped your whole layout with CoordinatorLayout and this is the root layout.

来源：https://stackoverflow.com/questions/38823767/snackbar-is-not-dismissing-on-swipe

标签

android

android-snackbar