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177 changes: 177 additions & 0 deletions
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app/src/main/java/com/saverio/pdfviewer/RealPathUtil.kt
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,177 @@ | ||
| import android.annotation.SuppressLint | ||
| import android.content.ContentUris | ||
| import android.content.Context | ||
| import android.content.CursorLoader | ||
| import android.database.Cursor | ||
| import android.net.Uri | ||
| import android.os.Build | ||
| import android.os.Environment | ||
| import android.provider.DocumentsContract | ||
| import android.provider.MediaStore | ||
| import android.text.TextUtils | ||
|
|
||
| object RealPathUtil { | ||
|
|
||
| fun getRealPath(context: Context, fileUri: Uri): String? { | ||
| // SDK >= 11 && SDK < 19 | ||
| return if (Build.VERSION.SDK_INT < 19) { | ||
| getRealPathFromURIAPI11to18(context, fileUri) | ||
| } else { | ||
| getRealPathFromURIAPI19(context, fileUri) | ||
| }// SDK > 19 (Android 4.4) and up | ||
| } | ||
|
|
||
| @SuppressLint("NewApi") | ||
| fun getRealPathFromURIAPI11to18(context: Context, contentUri: Uri): String? { | ||
| val proj = arrayOf(MediaStore.Images.Media.DATA) | ||
| var result: String? = null | ||
|
|
||
| val cursorLoader = CursorLoader(context, contentUri, proj, null, null, null) | ||
| val cursor = cursorLoader.loadInBackground() | ||
|
|
||
| if (cursor != null) { | ||
| val columnIndex = cursor.getColumnIndexOrThrow(MediaStore.Images.Media.DATA) | ||
| cursor.moveToFirst() | ||
| result = cursor.getString(columnIndex) | ||
| cursor.close() | ||
| } | ||
| return result | ||
| } | ||
|
|
||
| /** | ||
| * Get a file path from a Uri. This will get the the path for Storage Access | ||
| * Framework Documents, as well as the _data field for the MediaStore and | ||
| * other file-based ContentProviders. | ||
| * | ||
| * @param context The context. | ||
| * @param uri The Uri to query. | ||
| * @author Niks | ||
| */ | ||
| @SuppressLint("NewApi") | ||
| fun getRealPathFromURIAPI19(context: Context, uri: Uri): String? { | ||
|
|
||
| val isKitKat = Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT | ||
|
|
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| // DocumentProvider | ||
| if (isKitKat && DocumentsContract.isDocumentUri(context, uri)) { | ||
| // ExternalStorageProvider | ||
| if (isExternalStorageDocument(uri)) { | ||
| val docId = DocumentsContract.getDocumentId(uri) | ||
| val split = docId.split(":".toRegex()).dropLastWhile { it.isEmpty() }.toTypedArray() | ||
| val type = split[0] | ||
|
|
||
| if ("primary".equals(type, ignoreCase = true)) { | ||
| return Environment.getExternalStorageDirectory().toString() + "/" + split[1] | ||
| } | ||
| } else if (isDownloadsDocument(uri)) { | ||
| var cursor: Cursor? = null | ||
| try { | ||
| cursor = context.contentResolver.query(uri, arrayOf(MediaStore.MediaColumns.DISPLAY_NAME), null, null, null) | ||
| cursor!!.moveToNext() | ||
| val fileName = cursor.getString(0) | ||
| val path = Environment.getExternalStorageDirectory().toString() + "/Download/" + fileName | ||
| if (!TextUtils.isEmpty(path)) { | ||
| return path | ||
| } | ||
| } finally { | ||
| cursor?.close() | ||
| } | ||
| val id = DocumentsContract.getDocumentId(uri) | ||
| if (id.startsWith("raw:")) { | ||
| return id.replaceFirst("raw:".toRegex(), "") | ||
| } | ||
| val contentUri = ContentUris.withAppendedId(Uri.parse("content://downloads"), java.lang.Long.valueOf(id)) | ||
|
|
||
| return getDataColumn(context, contentUri, null, null) | ||
| } else if (isMediaDocument(uri)) { | ||
| val docId = DocumentsContract.getDocumentId(uri) | ||
| val split = docId.split(":".toRegex()).dropLastWhile { it.isEmpty() }.toTypedArray() | ||
| val type = split[0] | ||
|
|
||
| var contentUri: Uri? = null | ||
| when (type) { | ||
| "image" -> contentUri = MediaStore.Images.Media.EXTERNAL_CONTENT_URI | ||
| "video" -> contentUri = MediaStore.Video.Media.EXTERNAL_CONTENT_URI | ||
| "audio" -> contentUri = MediaStore.Audio.Media.EXTERNAL_CONTENT_URI | ||
| } | ||
|
|
||
| val selection = "_id=?" | ||
| val selectionArgs = arrayOf(split[1]) | ||
|
|
||
| return getDataColumn(context, contentUri, selection, selectionArgs) | ||
| }// MediaProvider | ||
| // DownloadsProvider | ||
| } else if ("content".equals(uri.scheme!!, ignoreCase = true)) { | ||
|
|
||
| // Return the remote address | ||
| return if (isGooglePhotosUri(uri)) uri.lastPathSegment else getDataColumn(context, uri, null, null) | ||
| } else if ("file".equals(uri.scheme!!, ignoreCase = true)) { | ||
| return uri.path | ||
| }// File | ||
| // MediaStore (and general) | ||
|
|
||
| return null | ||
| } | ||
|
|
||
| /** | ||
| * Get the value of the data column for this Uri. This is useful for | ||
| * MediaStore Uris, and other file-based ContentProviders. | ||
| * | ||
| * @param context The context. | ||
| * @param uri The Uri to query. | ||
| * @param selection (Optional) Filter used in the query. | ||
| * @param selectionArgs (Optional) Selection arguments used in the query. | ||
| * @return The value of the _data column, which is typically a file path. | ||
| * @author Niks | ||
| */ | ||
| private fun getDataColumn(context: Context, uri: Uri?, selection: String?, | ||
| selectionArgs: Array<String>?): String? { | ||
|
|
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| var cursor: Cursor? = null | ||
| val column = "_data" | ||
| val projection = arrayOf(column) | ||
|
|
||
| try { | ||
| cursor = context.contentResolver.query(uri!!, projection, selection, selectionArgs, null) | ||
| if (cursor != null && cursor.moveToFirst()) { | ||
| val index = cursor.getColumnIndexOrThrow(column) | ||
| return cursor.getString(index) | ||
| } | ||
| } finally { | ||
| cursor?.close() | ||
| } | ||
| return null | ||
| } | ||
|
|
||
| /** | ||
| * @param uri The Uri to check. | ||
| * @return Whether the Uri authority is ExternalStorageProvider. | ||
| */ | ||
| private fun isExternalStorageDocument(uri: Uri): Boolean { | ||
| return "com.android.externalstorage.documents" == uri.authority | ||
| } | ||
|
|
||
| /** | ||
| * @param uri The Uri to check. | ||
| * @return Whether the Uri authority is DownloadsProvider. | ||
| */ | ||
| private fun isDownloadsDocument(uri: Uri): Boolean { | ||
| return "com.android.providers.downloads.documents" == uri.authority | ||
| } | ||
|
|
||
| /** | ||
| * @param uri The Uri to check. | ||
| * @return Whether the Uri authority is MediaProvider. | ||
| */ | ||
| private fun isMediaDocument(uri: Uri): Boolean { | ||
| return "com.android.providers.media.documents" == uri.authority | ||
| } | ||
|
|
||
| /** | ||
| * @param uri The Uri to check. | ||
| * @return Whether the Uri authority is Google Photos. | ||
| */ | ||
| private fun isGooglePhotosUri(uri: Uri): Boolean { | ||
| return "com.google.android.apps.photos.content" == uri.authority | ||
| } | ||
| } |
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