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Code Releases Wiki Activity

Android: Extension support for native file dialog

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This commit is contained in:
Anish Mishra
2024-11-18 15:42:05 +05:30
parent fd4c29a189
commit 57541d53d3
1 changed files with 43 additions and 3 deletions
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46
platform/android/java/lib/src/org/godotengine/godot/io/FilePicker.kt
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@@ -37,6 +37,7 @@ import android.net.Uri
import android.os.Build
import android.provider.DocumentsContract
import android.util.Log
import android.webkit.MimeTypeMap
import androidx.annotation.RequiresApi
import org.godotengine.godot.GodotLib
import org.godotengine.godot.io.file.MediaStoreData
@@ -145,10 +146,11 @@ internal class FilePicker {
if (fileMode != FILE_MODE_OPEN_DIR) {
intent.type = "*/*"
if (filters.isNotEmpty()) {
if (filters.size == 1) {
intent.type = filters[0]
val resolvedFilters = filters.map { resolveMimeType(it) }.distinct()
if (resolvedFilters.size == 1) {
intent.type = resolvedFilters[0]
} else {
intent.putExtra(Intent.EXTRA_MIME_TYPES, filters)
intent.putExtra(Intent.EXTRA_MIME_TYPES, resolvedFilters.toTypedArray())
}
}
intent.addCategory(Intent.CATEGORY_OPENABLE)
@@ -156,5 +158,43 @@ internal class FilePicker {
intent.putExtra(Intent.EXTRA_LOCAL_ONLY, true)
activity?.startActivityForResult(intent, FILE_PICKER_REQUEST)
}
/**
* Retrieves the MIME type for a given file extension.
*
* @param ext the extension whose MIME type is to be determined.
* @return the MIME type as a string, or "application/octet-stream" if the type is unknown.
*/
private fun resolveMimeType(ext: String): String {
val mimeTypeMap = MimeTypeMap.getSingleton()
var input = ext
// Fix for extensions like "*.txt" or ".txt".
if (ext.contains(".")) {
input = ext.substring(ext.indexOf(".") + 1);
}
// Check if the input is already a valid MIME type.
if (mimeTypeMap.hasMimeType(input)) {
return input
}
val resolvedMimeType = mimeTypeMap.getMimeTypeFromExtension(input)
if (resolvedMimeType != null) {
return resolvedMimeType
}
// Check for wildcard MIME types like "image/*".
if (input.contains("/*")) {
val category = input.substringBefore("/*")
return when (category) {
"image" -> "image/*"
"video" -> "video/*"
"audio" -> "audio/*"
else -> "application/octet-stream"
}
}
// Fallback to a generic MIME type if the input is neither a valid extension nor MIME type.
return "application/octet-stream"
}
}
}