Android Utililty Methods Cursor Read

List of utility methods to do Cursor Read

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Description

The list of methods to do Cursor Read are organized into topic(s).

Method

voidcopyStringToBuffer(Cursor cursor, String columnName, CharArrayBuffer buffer)
copy String To Buffer 
cursor.copyStringToBuffer(cursor.getColumnIndex(columnName), buffer);
StringextractFilenameFromUri(Uri uri, Activity activity)
extract Filename From Uri 
String fileName = null;
if (uri == null) {
    throw new IllegalArgumentException();
String scheme = uri.getScheme();
String path = uri.getPath();
if (path != null && scheme != null && scheme.equals("file")) {
    fileName = path.substring(path.lastIndexOf("/") + 1);
...
byte[]getBlob(Cursor cursor, String columnName)
get Blob 
return cursor.getBlob(cursor.getColumnIndex(columnName));
byte[]getBlob(String columnName)
get Blob 
return getBlob(cursor, columnName);
doublegetDouble(Cursor cursor, String columnName)
get Double 
return cursor.getDouble(cursor.getColumnIndex(columnName));
doublegetDouble(String columnName)
get Double 
return getDouble(cursor, columnName);
FilegetFileFromUri(Uri uri, Activity activity)
get File From Uri 
String filePath = null;
String scheme = uri.getScheme();
filePath = uri.getPath();
if (filePath != null && scheme != null && scheme.equals("file")) {
    return new File(filePath);
String[] projection = { MediaStore.Images.ImageColumns.DATA };
Cursor c = activity.managedQuery(uri, projection, null, null, null);
...
StringgetFileNameFromUri(Uri uri, Activity activity)
get File Name From Uri 
String[] projection = { MediaStore.Images.ImageColumns.DISPLAY_NAME };
String fileName = null;
Cursor c = activity.managedQuery(uri, projection, null, null, null);
if (c != null && c.moveToFirst()) {
    fileName = c.getString(0);
return fileName;
floatgetFloat(Cursor cursor, String columnName)
get Float 
return cursor.getFloat(cursor.getColumnIndex(columnName));
floatgetFloat(String columnName)
get Float 
return getFloat(cursor, columnName);