adding a helper function for getting the closest grid cell

This commit is contained in:
tibbi 2022-09-23 11:44:10 +02:00
parent 115b60c52e
commit 5d85b9d7b4
2 changed files with 50 additions and 39 deletions

View File

@ -43,7 +43,7 @@ android {
}
dependencies {
implementation 'com.github.SimpleMobileTools:Simple-Commons:e93092b380'
implementation 'com.github.SimpleMobileTools:Simple-Commons:b826e8e020'
kapt "androidx.room:room-compiler:2.4.3"
implementation "androidx.room:room-runtime:2.4.3"

View File

@ -86,10 +86,10 @@ class HomeScreenGrid(context: Context, attrs: AttributeSet, defStyle: Int) : Vie
val center = gridCenters.minBy { Math.abs(it.first - x) + Math.abs(it.second - y) }
var redrawIcons = false
// convert stuff like 102x192 to grid cells like 0x1
rowXCoords.forEachIndexed { xIndex, xCell ->
rowYCoords.forEachIndexed { yIndex, yCell ->
if (xCell + rowWidth / 2 == center.first && yCell + rowHeight / 2 == center.second) {
val gridCells = getClosestGridCells(center)
if (gridCells != null) {
val xIndex = gridCells.first
val yIndex = gridCells.second
// check if the destination grid item is empty
val targetGridItem = gridItems.firstOrNull { it.left == xIndex && it.top == yIndex }
if (targetGridItem == null) {
@ -129,8 +129,6 @@ class HomeScreenGrid(context: Context, attrs: AttributeSet, defStyle: Int) : Vie
redrawIcons = true
}
}
}
}
draggedItem = null
if (redrawIcons) {
@ -138,6 +136,19 @@ class HomeScreenGrid(context: Context, attrs: AttributeSet, defStyle: Int) : Vie
}
}
// convert stuff like 102x192 to grid cells like 0x1
private fun getClosestGridCells(center: Pair<Int, Int>): Pair<Int, Int>? {
rowXCoords.forEachIndexed { xIndex, xCell ->
rowYCoords.forEachIndexed { yIndex, yCell ->
if (xCell + rowWidth / 2 == center.first && yCell + rowHeight / 2 == center.second) {
return Pair(xIndex, yIndex)
}
}
}
return null
}
@SuppressLint("DrawAllocation")
override fun onDraw(canvas: Canvas) {
super.onDraw(canvas)