如何使用Android中的MediaStore.files从内部和外部存储获取所有.pdf文件
没有来自内部或外部存储的结果如何使用Android中的MediaStore.files从内部和外部存储获取所有.pdf文件,android,pdf,android-contentprovider,mediastore,Android,Pdf,Android Contentprovider,Mediastore,没有来自内部或外部存储的结果 Cursor allPdfFilesCursor = cr.query(uriExternal, projection, selectionMimeType, selectionArgsPdf, sortOrder); if (allPdfFilesCursor != null && allPdfFilesCursor.getCount() != 0) { allPdfFilesCursor.moveToFirst()
Cursor allPdfFilesCursor = cr.query(uriExternal, projection, selectionMimeType, selectionArgsPdf, sortOrder);
if (allPdfFilesCursor != null && allPdfFilesCursor.getCount() != 0) {
allPdfFilesCursor.moveToFirst();
do {
int dataColumn = allPdfFilesCursor.getColumnIndex(MediaStore.Files.FileColumns.DATA);
String filePath=allPdfFilesCursor.getString(dataColumn);
} while (allPdfFilesCursor.moveToNext());
}
可能已经晚了,但我终于得到了解决方案,因为您要求提供多个文件扩展名,如.doc、pdf、xls
allPdfFilesCursor = cr.query(uriInternal, projection, selectionMimeType, selectionArgsPdf, sortOrder);
if (allPdfFilesCursor != null && allPdfFilesCursor.getCount() != 0) {
allPdfFilesCursor.moveToFirst();
do {
int dataColumn = allPdfFilesCursor.getColumnIndex(MediaStore.Files.FileColumns.DATA);
String filePath=allPdfFilesCursor.getString(dataColumn);
} while (allPdfFilesCursor.moveToNext());
}
if (allPdfFilesCursor != null && !allPdfFilesCursor.isClosed()) {
allPdfFilesCursor.close();
}
return listOfDirectories;
}
你找到解决办法了吗?如果是,请在这里分享。提前感谢。在某些设备中,它不适用于.ppt扩展名文件。媒体商店仅拾取pptx文件,而不拾取ppt。知道原因是什么吗?
allPdfFilesCursor = cr.query(uriInternal, projection, selectionMimeType, selectionArgsPdf, sortOrder);
if (allPdfFilesCursor != null && allPdfFilesCursor.getCount() != 0) {
allPdfFilesCursor.moveToFirst();
do {
int dataColumn = allPdfFilesCursor.getColumnIndex(MediaStore.Files.FileColumns.DATA);
String filePath=allPdfFilesCursor.getString(dataColumn);
} while (allPdfFilesCursor.moveToNext());
}
if (allPdfFilesCursor != null && !allPdfFilesCursor.isClosed()) {
allPdfFilesCursor.close();
}
return listOfDirectories;
}
String pdf = MimeTypeMap.getSingleton().getMimeTypeFromExtension("pdf");
String doc = MimeTypeMap.getSingleton().getMimeTypeFromExtension("doc");
String docx = MimeTypeMap.getSingleton().getMimeTypeFromExtension("docx");
String xls = MimeTypeMap.getSingleton().getMimeTypeFromExtension("xls");
String xlsx = MimeTypeMap.getSingleton().getMimeTypeFromExtension("xlsx");
String ppt = MimeTypeMap.getSingleton().getMimeTypeFromExtension("ppt");
String pptx = MimeTypeMap.getSingleton().getMimeTypeFromExtension("pptx");
String txt = MimeTypeMap.getSingleton().getMimeTypeFromExtension("txt");
String rtx = MimeTypeMap.getSingleton().getMimeTypeFromExtension("rtx");
String rtf = MimeTypeMap.getSingleton().getMimeTypeFromExtension("rtf");
String html = MimeTypeMap.getSingleton().getMimeTypeFromExtension("html");
//Table
Uri table = MediaStore.Files.getContentUri("external");
//Column
String[] column = {MediaStore.Files.FileColumns.DATA};
//Where
String where = MediaStore.Files.FileColumns.MIME_TYPE + "=?"
+" OR " +MediaStore.Files.FileColumns.MIME_TYPE + "=?"
+" OR " +MediaStore.Files.FileColumns.MIME_TYPE + "=?"
+" OR " +MediaStore.Files.FileColumns.MIME_TYPE + "=?"
+" OR " +MediaStore.Files.FileColumns.MIME_TYPE + "=?"
+" OR " +MediaStore.Files.FileColumns.MIME_TYPE + "=?"
+" OR " +MediaStore.Files.FileColumns.MIME_TYPE + "=?"
+" OR " +MediaStore.Files.FileColumns.MIME_TYPE + "=?"
+" OR " +MediaStore.Files.FileColumns.MIME_TYPE + "=?"
+" OR " +MediaStore.Files.FileColumns.MIME_TYPE + "=?"
+" OR " +MediaStore.Files.FileColumns.MIME_TYPE + "=?";
//args
String[] args = new String[]{pdf,doc,docx,xls,xlsx,ppt,pptx,txt,rtx,rtf,html};
Cursor fileCursor = getActivity().getContentResolver().query(table, column, where, args, null);
while (fileCursor.moveToNext()) {
//your code
}