Programmatically swipe left/right

[matteinn]

Hi there! First of all I need to thank you for this cool library.

I need to add like/dislike buttons just like the Tinder app and I'm wondering if there is an easy way to trigger the swipe animation programmatically by tapping the two buttons.

[matteinn]

Hi guys, for those interested in this feature I've added two methods to CardContainer.java

public void dislike(){

        final View topCard = mTopCard;

        mTopCard = getChildAt(getChildCount() - 2);
        CardModel cardModel = (CardModel)getAdapter().getItem(0);

        if(mTopCard != null)
            mTopCard.setLayerType(LAYER_TYPE_HARDWARE, null);

        topCard.animate()
            .setDuration(500)
            .alpha(.75f)
            .setInterpolator(new LinearInterpolator())
            .x(-topCard.getWidth())
            .y(topCard.getY())
            .rotation(-45)
            .setListener(new AnimatorListenerAdapter() {
                @Override
                public void onAnimationEnd(Animator animation) {
                    removeViewInLayout(topCard);
                    ensureFull();
                }

                @Override
                public void onAnimationCancel(Animator animation) {
                    onAnimationEnd(animation);
                }
            });

        if(cardModel.getOnCardDimissedListener() != null){
            cardModel.getOnCardDimissedListener().onDislike();
        }
    }

public void like(){
        final View topCard = mTopCard;

        mTopCard = getChildAt(getChildCount() - 2);
        CardModel cardModel = (CardModel)getAdapter().getItem(0);

        if(mTopCard != null)
            mTopCard.setLayerType(LAYER_TYPE_HARDWARE, null);

        topCard.animate()
            .setDuration(500)
            .alpha(.75f)
            .setInterpolator(new LinearInterpolator())
            .x(topCard.getWidth())
            .y(topCard.getY())
            .rotation(45)
            .setListener(new AnimatorListenerAdapter() {
                @Override
                public void onAnimationEnd(Animator animation) {
                    removeViewInLayout(topCard);
                    ensureFull();
                }

                @Override
                public void onAnimationCancel(Animator animation) {
                    onAnimationEnd(animation);
                }
            });

        if(cardModel.getOnCardDimissedListener() != null){
            cardModel.getOnCardDimissedListener().onLike();
        }
    }

Of course you can adjust the animation's parameters to fit your needs. I have made several adjustment to the library based on my project's needs (including fading green and red stamps over the photos), so I'm not able to submit a pull request now: I'll try to do it as soon as possible when the project will be completed.

Bye

[katikarganesh]

Thanks alot matteinn... Its very cool. Thanks.

[shumin0809]

Thanks matteinn. You're so sweet!!! I just need the methods at the moment!.

[seshuvinay]

I added below lines in like and dislike methods to have like and dislike drawables:

((ImageView) getChildAt(getChildCount() - 1).findViewById(
            R.id.interested_image)).setVisibility(View.VISIBLE);

((ImageView) getChildAt(getChildCount() - 1).findViewById(
            R.id.not_interested_image)).setVisibility(View.VISIBLE);

I just added two imageviews(not_interested_image and interested_image) one on another overlaying on card in xml and made their Visibility "gone" by default.

[SakthivelA]

@matteinn where From i call like() and dislike(). And also touch is not sensitive, If having any idea?

[fadelakin]

will you ever submit your pull request @matteinn?

[aeroechelon]

@fadelakin @matteinn Yeah great work. Would love to see a pull.

[monishagarwal215]

Thanks Matteinn.

I was in huge trouble.

After searching a lot, i found your solution and it was best.

Thanks once again.

[monishagarwal215]

Hi Matteinn,

When i click the button very fast before animation end it gives array index out of bounds exception.

I tried a a lot to resolve this issue but unable to resolve.

Please help me out.