kunfei
5 years ago
parent
440ad903d8
commit
75c99dbe7d
@ -0,0 +1,173 @@ |
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package io.legado.app.utils |
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|
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import android.annotation.SuppressLint |
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import android.content.ContentUris |
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import android.content.Context |
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import android.database.Cursor |
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import android.net.Uri |
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import android.os.Build |
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import android.os.Environment |
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import android.provider.DocumentsContract |
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import android.provider.MediaStore |
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import java.io.File |
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import java.io.FileInputStream |
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import java.io.FileOutputStream |
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import java.io.IOException |
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|
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@Suppress("unused") |
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object RealPathUtil { |
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/** |
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* Method for return file path of Gallery image |
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* @return path of the selected image file from gallery |
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*/ |
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private var filePathUri: Uri? = null |
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|
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@Suppress("DEPRECATION") |
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fun getPath( |
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context: Context, |
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uri: Uri |
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): String? { |
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//check here to KITKAT or new version |
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@SuppressLint("ObsoleteSdkInt") |
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val isKitKat = Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT |
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filePathUri = uri |
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// DocumentProvider |
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if (isKitKat && DocumentsContract.isDocumentUri(context, uri)) { // ExternalStorageProvider |
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if (isExternalStorageDocument(uri)) { |
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val docId = DocumentsContract.getDocumentId(uri) |
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val split = docId.split(":").toTypedArray() |
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val type = split[0] |
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if ("primary".equals(type, ignoreCase = true)) { |
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return Environment.getExternalStorageDirectory().toString() + "/" + split[1] |
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} |
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} else if (isDownloadsDocument(uri)) { |
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val id = DocumentsContract.getDocumentId(uri) |
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val contentUri = ContentUris.withAppendedId( |
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Uri.parse("content://downloads/public_downloads"), |
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java.lang.Long.valueOf(id) |
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) |
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//return getDataColumn(context, uri, null, null); |
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return getDataColumn(context, contentUri, null, null) |
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} else if (isMediaDocument(uri)) { |
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val docId = DocumentsContract.getDocumentId(uri) |
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val split = docId.split(":").toTypedArray() |
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val type = split[0] |
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var contentUri: Uri? = null |
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if ("image" == type) { |
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contentUri = MediaStore.Images.Media.EXTERNAL_CONTENT_URI |
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} else if ("video" == type) { |
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contentUri = MediaStore.Video.Media.EXTERNAL_CONTENT_URI |
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} else if ("audio" == type) { |
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contentUri = MediaStore.Audio.Media.EXTERNAL_CONTENT_URI |
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} |
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val selection = "_id=?" |
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val selectionArgs = arrayOf( |
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split[1] |
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) |
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return getDataColumn(context, contentUri, selection, selectionArgs) |
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} |
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} else if ("content".equals( |
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uri.scheme, |
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ignoreCase = true |
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) |
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) { // Return the remote address |
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return if (isGooglePhotosUri(uri)) uri.lastPathSegment else getDataColumn( |
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context, |
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uri, |
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null, |
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null |
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) |
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} else if ("file".equals(uri.scheme, ignoreCase = true)) { |
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return uri.path |
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} |
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return null |
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} |
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|
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/** |
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* Get the value of the data column for this Uri. This is useful for |
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* MediaStore Uris, and other file-based ContentProviders. |
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* |
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* @param context The context. |
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* @param uri The Uri to query. |
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* @param selection (Optional) Filter used in the query. |
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* @param selectionArgs (Optional) Selection arguments used in the query. |
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* @return The value of the _data column, which is typically a file path. |
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*/ |
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private fun getDataColumn( |
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context: Context, uri: Uri?, selection: String?, |
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selectionArgs: Array<String>? |
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): String? { |
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var cursor: Cursor? = null |
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val column = "_data" |
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val projection = arrayOf( |
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column |
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) |
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var input: FileInputStream? = null |
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var output: FileOutputStream? = null |
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try { |
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cursor = |
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context.contentResolver.query(uri!!, projection, selection, selectionArgs, null) |
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if (cursor != null && cursor.moveToFirst()) { |
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val index = cursor.getColumnIndexOrThrow(column) |
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return cursor.getString(index) |
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} |
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} catch (e: IllegalArgumentException) { |
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e.printStackTrace() |
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val file = File(context.cacheDir, "tmp") |
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val filePath = file.absolutePath |
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try { |
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val pfd = |
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context.contentResolver.openFileDescriptor(filePathUri!!, "r") |
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?: return null |
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val fd = pfd.fileDescriptor |
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input = FileInputStream(fd) |
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output = FileOutputStream(filePath) |
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var read: Int |
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val bytes = ByteArray(4096) |
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while (input.read(bytes).also { read = it } != -1) { |
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output.write(bytes, 0, read) |
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} |
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input.close() |
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output.close() |
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return File(filePath).absolutePath |
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} catch (ignored: IOException) { |
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ignored.printStackTrace() |
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} |
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} finally { |
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cursor?.close() |
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} |
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return null |
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} |
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|
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/** |
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* @param uri The Uri to check. |
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* @return Whether the Uri authority is ExternalStorageProvider. |
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*/ |
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private fun isExternalStorageDocument(uri: Uri): Boolean { |
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return "com.android.externalstorage.documents" == uri.authority |
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} |
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|
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/** |
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* @param uri The Uri to check. |
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* @return Whether the Uri authority is DownloadsProvider. |
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*/ |
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private fun isDownloadsDocument(uri: Uri): Boolean { |
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return "com.android.providers.downloads.documents" == uri.authority |
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} |
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/** |
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* @param uri The Uri to check. |
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* @return Whether the Uri authority is MediaProvider. |
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*/ |
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private fun isMediaDocument(uri: Uri): Boolean { |
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return "com.android.providers.media.documents" == uri.authority |
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} |
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|
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/** |
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* @param uri The Uri to check. |
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* @return Whether the Uri authority is Google Photos. |
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*/ |
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private fun isGooglePhotosUri(uri: Uri): Boolean { |
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return "com.google.android.apps.photos.content" == uri.authority |
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} |
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} |
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