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SwipeableRecyclerView

(★ 177)

Implementation of an Android CardView list in a RecyclerView that allows dismissing/deleting elements by swiping them to the left or right.

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# Installation Guide

1. Get the code

git clone https://github.com/brnunes/SwipeableRecyclerView

Downloads the entire project code from GitHub to your computer.

cd SwipeableRecyclerView

Moves into the project folder you just downloaded.

2. Gradle (Java/Kotlin)

Medium Recommended

Prerequisites

Git Needed to download the project code from GitHub.
JDK (Java) Required to build and run Java/Kotlin projects.
Gradle If the repo includes gradlew (Gradle Wrapper), you don't need to install Gradle separately.

cd app

This project's files live in a subfolder, so move into it first.

./gradlew build

Builds the project using Gradle.

✅ A BUILD SUCCESSFUL message means it worked. The output is created under build/.

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Android SwipeableRecyclerView
=====================

Based on [romannurik`s Android-SwipeToDismiss](https://github.com/romannurik/Android-SwipeToDismiss).

Sample project implementation of a single column list of `CardView`s in a `RecyclerView` with a `TouchListener` that allows dismissing of elements by swiping the elements to the left or right.

![Output sample](https://raw.githubusercontent.com/brnunes/SwipeableRecyclerView/master/demo.gif)

#### How to use

- Add these Gradle dependencies to your app's module:

````
    dependencies {
        ...
        
        // already includes 'com.android.support:recyclerview-v7:23.1.1'
        compile 'com.github.brnunes:swipeablerecyclerview:1.0.2'

// only necessary if you are using CardView
        compile 'com.android.support:cardview-v7:23.1.1'
    }
    ````
The `RecyclerView` and `CardView` widgets are part of the [v7 Support Libraries](https://developer.android.com/tools/support-library/features.html#v7).
- Instantiate a `SwipeableRecyclerViewTouchListener` passing as parameters the `RecyclerView` and a `SwipeableRecyclerViewTouchListener.SwipeListener` that will receive the callbacks.
- Add the instantiated `SwipeableRecyclerViewTouchListener` as a [`RecyclerView.OnItemTouchListener`](https://developer.android.com/reference/android/support/v7/widget/RecyclerView.OnItemTouchListener.html).

```java
    SwipeableRecyclerViewTouchListener swipeTouchListener =
            new SwipeableRecyclerViewTouchListener(mRecyclerView,
                    new SwipeableRecyclerViewTouchListener.SwipeListener() {
                        @Override
                        public boolean canSwipeLeft(int position) {
                            return true;
                        }

@Override
                        public boolean canSwipeRight(int position) {
                            return true;
                        }

@Override
                        public void onDismissedBySwipeLeft(RecyclerView recyclerView, int[] reverseSortedPositions) {
                            for (int position : reverseSortedPositions) {
                                mItems.remove(position);
                                mAdapter.notifyItemRemoved(position);
                            }
                            mAdapter.notifyDataSetChanged();
                        }

@Override
                        public void onDismissedBySwipeRight(RecyclerView recyclerView, int[] reverseSortedPositions) {
                            for (int position : reverseSortedPositions) {
                                mItems.remove(position);
                                mAdapter.notifyItemRemoved(position);
                            }
                            mAdapter.notifyDataSetChanged();
                        }
                    });

mRecyclerView.addOnItemTouchListener(swipeTouchListener);
    ````