README
DragDropLibrary
A Sample React Native Library for Draggable Sortable Grid , Performs operations like
- re-ordering grid items,
- deleting animation grid items
- merge animation for grid items
Library Installation
npm i react-native-drag-drop-grid-library --save
Sample Implementation
Suppose alphabets is an array of objects
this.alphabets = ['1','2','3','4','5','6',
'7','8','9','10','11','12',
'13','14','15','16','17','18',
'19','20','21','22','23','24'];
Features:
- Sortable(Draggable) Grid feature:
render(){
<View style={{ flex: 1 }}>
<DragDropGrid
ref={sortGrid => {
this.sortGrid = sortGrid;
}}
blockTransitionDuration={400}
activeBlockCenteringDuration={200}
itemsPerRow={4}
dragActivationTreshold={200}
onDragRelease = { (itemOrder) => console.log("Drag was released, the blocks are in the following order: ", itemOrder) }
onDragStart = { (key) => console.log("Some block is being dragged now!",key) }>
{
this.alphabets.map( (letter, index) =>
<View key={letter} style={[styles.block, { backgroundColor: this.getColor() }]}
>
<Text
style={{color: 'white', fontSize: 50}}>{letter}</Text>
</View>
)
}
</DragDropGrid>
</View>
}
- Merge on Grid Item Overlap
render(){
<View style={{ flex: 1 }}>
<DragDropGrid
ref={sortGrid => {
this.sortGrid = sortGrid;
}}
blockTransitionDuration={400}
activeBlockCenteringDuration={200}
itemsPerRow={4}
dragActivationTreshold={200}
onDragRelease = { (itemOrder) => console.log("Drag was released, the blocks are in the following order: ", itemOrder) }
onDragStart = { (key) => console.log("Some block is being dragged now!",key) }
onMerge = {(itemKey,mergeBlockKey) => console.log("item and merge item",itemKey,mergeBlockKey)}
merge={true}>
{
this.alphabets.map( (letter, index) =>
<View key={letter} style={[styles.block, { backgroundColor: this.getColor() }]}
>
<Text
style={{color: 'white', fontSize: 50}}>{letter}</Text>
</View>
)
}
</DragDropGrid>
</View>
}
- Delete Grid Items
onRemove(letter){
this.sortGrid.deleteBlockList(letter);
}
render() {
return (
<View style={{ flex: 1 }}>
<DragDropGrid
ref={sortGrid => {
this.sortGrid = sortGrid;
}}
blockTransitionDuration={400}
activeBlockCenteringDuration={200}
itemsPerRow={4}
dragActivationTreshold={200}
onDragRelease = { (itemOrder) => console.log("Drag was released, the blocks are in the following order: ",itemOrder)} onDragStart = { (key) => console.log("Some block is being dragged now!",key) }
onDeleteItem = { (item) => console.log("Item was deleted:", item) }>
{
this.alphabets.map( (letter, index) =>
<View key={letter} style={[styles.block, { backgroundColor: this.getColor() }]}
>
<Text
style={{color: 'white', fontSize: 50}}>{letter}</Text>
<View style={[styles.close]}>
<TouchableOpacity
activeOpacity={0.5}
onPress={()=> this.onRemove(letter)}>
<View
style={[
styles.circle,
{ width: 25, height: 25, backgroundColor: '#1A325E' },
this.props.style
]}
>
<Image resizeMode="contain" style={{ height: 19 }} source={require('./assets/close_white.png')} />
</View>
</TouchableOpacity>
</View>
</View>
)
}
</DragDropGrid>
</View>
)
}