swipeablerecyclerview

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swipeablerecyclerview

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SwipeableRecyclerView provides a wrapper class SwipeItemTouchHelperCallback which can be used to add Dragging capability to your RecyclerView items. You can make use of DataBinding to bind it via XML.

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## Swipeable RecyclerView

SwipeableRecyclerView provides a wrapper class [SwipeItemTouchHelperCallback](./app/src/main/java/com/fueled/swipeablerecyclerview/SwipeItemTouchHelperCallback.java) extends `ItemTouchHelper.Callback` which can be used to add Swiping capability to your RecyclerView items. You can make use of `DataBinding` to bind it via XML.

## How to Use

```java
ItemTouchHelper.Callback swipeCallback = new SwipeItemTouchHelperCallback
        .Builder(0, ItemTouchHelper.LEFT | ItemTouchHelper.RIGHT)
        .bgColorSwipeLeft(bgColorSwipeLeft)
        .bgColorSwipeRight(bgColorSwipeRight)
        .drawableSwipeLeft(drawableSwipeLeft)
        .drawableSwipeRight(drawableSwipeRight)
        .setSwipeEnabled(swipeEnabled)
        .onItemSwipeLeftListener(onItemSwipeLeft)
        .onItemSwipeRightListener(onItemSwipeRight)
        .build();

ItemTouchHelper itemTouchHelper = new ItemTouchHelper(swipeCallback);
itemTouchHelper.attachToRecyclerView(recyclerView);
```

## How to Bind

In your `Gradle`

```groovy
dataBinding {
    enabled = true
}
```

In your `BindingAdapter`

```java
/**
 * Bind ItemTouchHelper.SimpleCallback with RecyclerView
 *
 * @param recyclerView      	RecyclerView to bind to SwipeItemTouchHelperCallback
 * @param swipeEnabled      	enable/disable swipe
 * @param drawableSwipeLeft     drawable shown when swiped left
 * @param drawableSwipeRight    drawable shown when swiped right
 * @param bgColorSwipeLeft  	background color when swiped left
 * @param bgColorSwipeRight 	background color when swiped right
 * @param onItemSwipeLeft   	OnItemSwipeListener for swiped left
 * @param onItemSwipeRight  	OnItemSwipeListener for swiped right
 */
@android.databinding.BindingAdapter(value = {"swipeEnabled", "drawableSwipeLeft", "drawableSwipeRight", "bgColorSwipeLeft", "bgColorSwipeRight", "onItemSwipeLeft", "onItemSwipeRight"}, requireAll = false)
public static void setItemSwipeToRecyclerView(RecyclerView recyclerView, boolean swipeEnabled, Drawable drawableSwipeLeft, Drawable drawableSwipeRight, int bgColorSwipeLeft, int bgColorSwipeRight,
                                              SwipeItemTouchHelperCallback.OnItemSwipeListener onItemSwipeLeft, SwipeItemTouchHelperCallback.OnItemSwipeListener onItemSwipeRight) {

... // attach RecyclerView to SwipeItemTouchHelperCallback as above
}
```

In your `XML` file

```xml
<android.support.v7.widget.RecyclerView
    android:id="@+id/rv"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:background="@android:color/white"
    bind:bgColorSwipeLeft="@{@color/app_green}"
    bind:bgColorSwipeRight="@{@color/app_red}"
    bind:drawableSwipeLeft="@{@drawable/ic_check_white_24dp}"
    bind:drawableSwipeRight="@{@drawable/ic_close_white_24dp}"
    bind:onItemSwipeLeft="@{(position) -> handler.onItemSwipedLeft(position)}"
    bind:onItemSwipeRight="@{(position) -> handler.onItemSwipedRight(position)}"
    bind:swipeEnabled="@{true}"/>
```

## Library used

Add Android Support Design dependency to your gradle file.

```groovy
dependencies {
    compile 'com.android.support:design:{latest_version}'
}
```

## Reference

- [ItemTouchHelper.SimpleCallback](https://developer.android.com/reference/android/support/v7/widget/helper/ItemTouchHelper.SimpleCallback.html)
- [Drag and Swipe with RecyclerView](https://medium.com/@ipaulpro/drag-and-swipe-with-recyclerview-b9456d2b1aaf)
- [Android custom Swipe view with RecyclerView](https://www.learn2crack.com/2016/02/custom-swipe-recyclerview.html)

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