CODEWITHSUNDEEP
androidlistviewswipe
Emil Adz
Emil Adz

Reputation: 41099

SwipeListView by 47degree: swipe first item programmatically

I would like to swipe the first item on the SwipeListView on Activity start up to show the user that the SwipeListView is swipe-able.

How can I perform this action programmatically with this UI element?

Update

I tried to use the 

swipeListView.openAnimate(position)

that was proposed here in the answer, but for some reason even after I populate the adapter with data-items... when I debug and reach this code section the swipeListView doesn't see item in it, and fails with NullPointerException.

Update 2

Well, I realized that the reason there were no items in the adapter because it's not yet created in onCreate, so I moved this code to method:

public void onWindowFocusChanged(boolean hasFocus){}

of my activity, now it runs but still fails on the following method of the SwipeListView library:

 private void resetCell() {
    if (downPosition != ListView.INVALID_POSITION) {
        if (swipeCurrentAction == SwipeListView.SWIPE_ACTION_CHOICE) {
            backView.setVisibility(View.VISIBLE);
        }
        frontView.setClickable(opened.get(downPosition));
        frontView.setLongClickable(opened.get(downPosition));
        frontView = null;
        backView = null;
        downPosition = ListView.INVALID_POSITION;
    }
}

The reason for this is that when this method is running the frontView object is never set and those it null.

Upvotes: 3

Views: 2247

Answers (3)

Emil Adz
Emil Adz

Reputation: 41099

I have actually went and recreated the used animation in the library just for the instance of the Showcase, so what I did was:

private void generateRevealAnimate(final View view) {
    animate(view)
    .translationX(-520)
    .setDuration(500)
    .setListener(new AnimatorListenerAdapter() {
        @Override
        public void onAnimationEnd(Animator animation) {}
    }); 
}

private void generateCloseAnimate(final View view) {
    animate(view)
    .translationX(0)
    .setDuration(500)
    .setListener(new AnimatorListenerAdapter() {
        @Override
        public void onAnimationEnd(Animator animation) {}
    });
}

And then just run them one after another on the desired view:

final Handler handler = new Handler();
handler.postDelayed(new Runnable() {
    @Override
    public void run() 
    {
        generateRevealAnimate(firstFrontView); 
        handler.postDelayed(new Runnable() {
            @Override
            public void run()
            {
                generateCloseAnimate(firstFrontView);  
            }
        }, 1400);
    }
}, 1400);

Upvotes: 1

Maria Neumayer
Maria Neumayer

Reputation: 3357

Check the source code!

SwipeListViewTouchListener sets the frontView. setFrontView() is only being called in case of on touch down event. So either you somehow fake a touch event for this view or you fork the library and update it to your needs.

Upvotes: 1

Vetalll
Vetalll

Reputation: 3700

For openining the item you should use 

swipeListView.openAnimate(position)

For closing the item you can use on of this: 

swipeListView.closeAnimate(position);
swipeListView.closeOpenedItems();

Here is some code from working project:

private BaseSwipeListViewListener albumsLIstener = new BaseSwipeListViewListener() {
    @Override
    public void onClickFrontView(int position) {
        if (albumsListsView.isOpened(position)) {
            albumsListsView.closeAnimate(position);
        } else albumsListsView.openAnimate(position);
    }

    @Override
    public void onClickBackView(int position) {
        if (albumsListsView.isOpened(position)) {
            albumsListsView.closeAnimate(position);
        } else albumsListsView.openAnimate(position);
    }
};

Upvotes: 1

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