CustomFilter class abstract

Full custom filter.

Use the filter to filter all the assets.

Actually, it is a sql filter. In android: convert where and orderBy to the params of ContentResolver.query In iOS/macOS: convert where and orderBy to the PHFetchOptions to filter the assets.

Now, the CustomFilter is have two sub class: CustomFilter.sql to create SqlCustomFilter.

The AdvancedCustomFilter is a more powerful helper.

Examples: The sql custom filter.

create example:

final filter = CustomFilter.sql(
 where: '${CustomColumns.base.width} > 1000',
 orderBy: [
     OrderByItem(CustomColumns.base.width, desc),
  ],
);

See also:

• CustomFilter.sql
• AdvancedCustomFilter
• OrderByItem

Inheritance

• Object
• PMFilter
• CustomFilter

Constructors

CustomFilter()

CustomFilter.sql({required String where, List<OrderByItem> orderBy = const []})

factory

Properties

containsPathModified ↔ bool

Whether the AssetPathEntitys will return with modified time.

getter/setter pair, inherited

hashCode → int

The hash code for this object.

no setter, inherited

needTitle ↔ bool

Whether the AssetEntitys will return with title.

getter/setter pair

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

type → BaseFilterType

The type of the filter.

no setter, override

Methods

childMap() → Map<String, dynamic>

The child map of the filter.

override

makeOrderBy() → List<OrderByItem>

Make the order by condition.

makeWhere() → String

Make the where condition.

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

toMap() → Map<String, dynamic>

Convert the filter to a map for channel.

inherited

toString() → String

A string representation of this object.

inherited

updateDateToNow() → PMFilter

The method only supports for FilterOptionGroup.

override

Operators

operator ==(Object other) → bool

The equality operator.

inherited