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fix: size wallpapers against the display's natural orientation #295

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Merged
Bnyro merged 2 commits into from
Sep 11, 2026
Merged

fix: size wallpapers against the display's natural orientation #295

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018b3ea
fix: size wallpapers against the display's natural orientation
Aug 31, 2026
93265c8
refactor: simplify display rotation lookup and document orientation h…
chunjiw Sep 11, 2026
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21 changes: 20 additions & 1 deletion app/src/main/java/com/bnyro/wallpaper/util/WallpaperHelper.kt
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Original file line number Diff line number Diff line change
Expand Up @@ -3,10 +3,14 @@ package com.bnyro.wallpaper.util
import android.app.WallpaperManager
import android.content.Context
import android.graphics.Bitmap
import android.hardware.display.DisplayManager
import android.os.Build
import android.util.DisplayMetrics
import android.view.Display
import android.view.Surface
import android.view.WindowManager
import androidx.annotation.RequiresApi
import androidx.core.content.getSystemService
import com.bnyro.wallpaper.enums.ResizeMethod
import com.bnyro.wallpaper.enums.WallpaperTarget
import kotlinx.coroutines.Dispatchers
Expand Down Expand Up @@ -65,17 +69,32 @@ object WallpaperHelper {
}
}

/** The display size in its natural orientation, which is how a wallpaper is stored. */
private fun getMetrics(context: Context): Pair<Int, Int> {
val windowManager = context.getSystemService(Context.WINDOW_SERVICE) as WindowManager

return if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.R) {
val (width, height) = if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.R) {
windowManager.currentWindowMetrics.bounds.let { it.width() to it.height() }
} else {
val metrics = DisplayMetrics()
@Suppress("DEPRECATION")
windowManager.defaultDisplay.getMetrics(metrics)
metrics.widthPixels to metrics.heightPixels
}

// `width` and `height` depend on the current screen orientation. To get the real metrics,
// we additionally check the current rotation of the display.
return when (getDisplayRotation(context)) {

@Bnyro Bnyro Sep 2, 2026

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Suggested change
return when (getDisplayRotation(context)) {
// `width` and `height` depend on the current screen orientation. To get the real metrics,
// we additionally check the current rotation of the display.
return when (getDisplayRotation(context)) {

Please add a short comment here to explain what we're doing, e.g. as the one proposed here.

@chunjiw chunjiw Sep 11, 2026

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Added~

Surface.ROTATION_90, Surface.ROTATION_270 -> height to width
else -> width to height
}
}

private fun getDisplayRotation(context: Context): Int {
val display = context.getSystemService<DisplayManager>()
?.getDisplay(Display.DEFAULT_DISPLAY)

return display?.rotation ?: Surface.ROTATION_0
}

private fun resizeBitmapByPreference(context: Context, bitmap: Bitmap): Bitmap {
Expand Down
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