blob: be5e4c86c734eb1b233f0b15632dd74f28dfd320 (
plain) (
blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
|
// SPDX-FileCopyrightText: 2023 yuzu Emulator Project
// SPDX-License-Identifier: GPL-2.0-or-later
package org.yuzu.yuzu_emu.layout
import android.content.Context
import androidx.recyclerview.widget.GridLayoutManager
import androidx.recyclerview.widget.RecyclerView
import androidx.recyclerview.widget.RecyclerView.Recycler
import org.yuzu.yuzu_emu.R
/**
* Cut down version of the solution provided here
* https://stackoverflow.com/questions/26666143/recyclerview-gridlayoutmanager-how-to-auto-detect-span-count
*/
class AutofitGridLayoutManager(
context: Context,
columnWidth: Int
) : GridLayoutManager(context, 1) {
private var columnWidth = 0
private var isColumnWidthChanged = true
private var lastWidth = 0
private var lastHeight = 0
init {
setColumnWidth(checkedColumnWidth(context, columnWidth))
}
private fun checkedColumnWidth(context: Context, columnWidth: Int): Int {
var newColumnWidth = columnWidth
if (newColumnWidth <= 0) {
newColumnWidth = context.resources.getDimensionPixelSize(R.dimen.spacing_xtralarge)
}
return newColumnWidth
}
private fun setColumnWidth(newColumnWidth: Int) {
if (newColumnWidth > 0 && newColumnWidth != columnWidth) {
columnWidth = newColumnWidth
isColumnWidthChanged = true
}
}
override fun onLayoutChildren(recycler: Recycler, state: RecyclerView.State) {
val width = width
val height = height
if (columnWidth > 0 && width > 0 && height > 0 && (isColumnWidthChanged || lastWidth != width || lastHeight != height)) {
val totalSpace: Int = if (orientation == VERTICAL) {
width - paddingRight - paddingLeft
} else {
height - paddingTop - paddingBottom
}
val spanCount = 1.coerceAtLeast(totalSpace / columnWidth)
setSpanCount(spanCount)
isColumnWidthChanged = false
}
lastWidth = width
lastHeight = height
super.onLayoutChildren(recycler, state)
}
}
|