MyPicker class

系统文件/文件夹选择（非 MySelector）。

类名已表达「选择」语义，方法使用 dir / file / files，不再重复 pick 前缀。 dir 为系统目录选择对话框，不是 MyPaths.userDataDir 路径 getter。

详见 .doc/user_data_picker.md。

Properties

hashCode → int

The hash code for this object.

no setter, inherited

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

Methods

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

toString() → String

A string representation of this object.

inherited

Operators

operator ==(Object other) → bool

The equality operator.

inherited

Static Methods

dir({String? initialDir, String confirmButtonText = '选择文件夹'}) → Future<String?>

选择单个目录；取消返回 null。桌面为主。

file({String? initialDir, List<String>? acceptedExtensions, String? confirmButtonText}) → Future<String?>

选择单个文件；取消返回 null。

files({String? initialDir, List<String>? acceptedExtensions, String? confirmButtonText}) → Future<List<String>>

选择多个文件；取消或未选返回空列表。

resolveInitialDir(String? initialDir) → String?

解析系统对话框初始目录：显式 initialDir 优先，否则已 MyPaths.setUserDataDir 时用 MyPaths.userDataDir。

userDataDirAndApply({required MyUserDataDirStore store, String? initialDir, Future<bool> confirmWarnings(List<String> warnings)?, Future<void> onAfterApply(String normalizedPath)?, String confirmButtonText = '选择文件夹'}) → Future<String?>

系统选目录 → 可选 warnings 确认 → MyUserDataDirSession.apply。