我正在使用此代码从URI获取真实路径.它正在努力
棉花糖但不在奥利奥:
private String getPathNew(Activity activity, Uri uri) {
if (isDownloadsDocument(uri)) {
final String id = DocumentsContract.getDocumentId(uri);
final Uri contentUri = ContentUris.withAppendedId(Uri.parse("content://downloads/public_downloads"), Long.valueOf(id));
return getDataColumn(activity, contentUri, null, null);
}
return null;
}
public static String getDataColumn(Context context, Uri uri, String
selection, String[] selectionArgs) {
Cursor cursor = null;
final String column = "_data";
final String[] projection = {column};
try {
cursor = context.getContentResolver().query(uri, projection, selection,
selectionArgs, null);
if (cursor != null && cursor.movetoFirst()) {
final int column_index = cursor.getColumnIndexOrThrow(column);
return cursor.getString(column_index);
}
} finally {
if (cursor != null)
cursor.close();
}
return null;
}
我究竟做错了什么?
解决方法:
public static String getRealPathFromURI(Context context, Uri contentUri) {
String[] proj = {MediaStore.Images.Media.DATA};
Cursor cursor = context.getContentResolver().query(contentUri, proj, null, null,
null);
if (cursor != null) {
int column_index =
cursor.getColumnIndexOrThrow(MediaStore.Images.Media.DATA);
cursor.movetoFirst();
return cursor.getString(column_index);
}
return null;
}
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