获取本地路径代码,Java代码库,德仔网

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【Java】获取本地路径
作者:logan676 / 发布于2015/4/2/ 507

	/**
	 * Translates a content URI of an content to a physical path on the disk
	 *
	 * @param uri The URI to resolve
	 * @return The path to the content or null if it could not be found
	 */
	 public String getPath(Uri uri) {
	 final boolean isKitKatOrLater = Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT;
	
	 // DocumentProvider
	 if (isKitKatOrLater && DocumentsContract.isDocumentUri(getApplicationContext(), uri)) {
	 // ExternalStorageProvider
	 if (UriUtils.isExternalStorageDocument(uri)) {
	 final String docId = DocumentsContract.getDocumentId(uri);
	 final String[] split = docId.split(":");
	 final String type = split[0];
	
	 if ("primary".equalsIgnoreCase(type)) {
	 return Environment.getExternalStorageDirectory() + "/" + split[1];
	 }
	 }
	 // DownloadsProvider
	 else if (UriUtils.isDownloadsDocument(uri)) {
	
	 final String id = DocumentsContract.getDocumentId(uri);
	 final Uri contentUri = ContentUris.withAppendedId(Uri.parse("content://downloads/public_downloads"),
	 Long.valueOf(id));
	
	 return UriUtils.getDataColumn(getApplicationContext(), contentUri, null, null);
	 }
	 // MediaProvider
	 else if (UriUtils.isMediaDocument(uri)) {
	 final String docId = DocumentsContract.getDocumentId(uri);
	 final String[] split = docId.split(":");
	 final String type = split[0];
	
	 Uri contentUri = null;
	 if ("image".equals(type)) {
	 contentUri = MediaStore.Images.Media.EXTERNAL_CONTENT_URI;
	 } else if ("video".equals(type)) {
	 contentUri = MediaStore.Video.Media.EXTERNAL_CONTENT_URI;
	 } else if ("audio".equals(type)) {
	 contentUri = MediaStore.Audio.Media.EXTERNAL_CONTENT_URI;
	 }
	
	 final String selection = "_id=?";
	 final String[] selectionArgs = new String[] { split[1] };
	
	 return UriUtils.getDataColumn(getApplicationContext(), contentUri, selection, selectionArgs);
	 }
	 // Documents providers returned as content://...
	 else if (UriUtils.isContentDocument(uri)) {
	 return uri.toString();
	 }
	 }
	 // MediaStore (and general)
	 else if ("content".equalsIgnoreCase(uri.getScheme())) {
	
	 // Return the remote address
	 if (UriUtils.isGooglePhotosUri(uri))
	 return uri.getLastPathSegment();
	
	 return UriUtils.getDataColumn(getApplicationContext(), uri, null, null);
	 }
	 // File
	 else if ("file".equalsIgnoreCase(uri.getScheme())) {
	 return uri.getPath();
	 }
	 return null;
	 }
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