lyming1994/window_manager

This plugin allows Flutter desktop apps to resizing and repositioning the window.

window_manager

This plugin allows Flutter desktop apps to resizing and repositioning the window.

---

• window_manager
  • Platform Support
  • Quick Start
    • Installation
    • Usage
      • Listening events
      • Quit on close
        • macOS
        • Windows
      • Hidden at launch
        • macOS
  • Who's using it?
  • Discussion
  • API
    • WindowManager
    • WindowListener
  • License

Platform Support

Linux	macOS	Windows
✔️	✔️	✔️

Quick Start

Installation

Add this to your package's pubspec.yaml file:

dependencies:
  window_manager: ^0.1.1

Or

dependencies:
  window_manager:
    git:
      url: https://github.com/leanflutter/window_manager.git
      ref: main

Usage

import 'package:flutter/material.dart';
import 'package:window_manager/window_manager.dart';

void main() async {
  WidgetsFlutterBinding.ensureInitialized();
  // Must add this line.
  await windowManager.ensureInitialized();

  // Use it only after calling `hiddenWindowAtLaunch`
  windowManager.waitUntilReadyToShow().then((_) async{
    // Set to frameless window
    await windowManager.setAsFrameless();
    await windowManager.setSize(Size(600, 600));
    await windowManager.setPosition(Offset.zero);
    windowManager.show();
  });

  runApp(MyApp());
}

Please see the example app of this plugin for a full example.

Listening events

import 'package:flutter/cupertino.dart';
import 'package:window_manager/window_manager.dart';

class HomePage extends StatefulWidget {
  @override
  _HomePageState createState() => _HomePageState();
}

class _HomePageState extends State<HomePage> with WindowListener {
  @override
  void initState() {
    windowManager.addListener(this);
    super.initState();
  }

  @override
  void dispose() {
    windowManager.removeListener(this);
    super.dispose();
  }

  @override
  Widget build(BuildContext context) {
    // ...
  }

  @override
  void onWindowEvent(String eventName) {
    print('[WindowManager] onWindowEvent: $eventName');
  }

  @override
  void onWindowFocus() {
    // do something
  }

  @override
  void onWindowBlur() {
    // do something
  }

  @override
  void onWindowMaximize() {
    // do something
  }

  @override
  void onWindowUnmaximize() {
    // do something
  }

  @override
  void onWindowMinimize() {
    // do something
  }

  @override
  void onWindowRestore() {
    // do something
  }

  @override
  void onWindowResize() {
    // do something
  }

  @override
  void onWindowMove() {
    // do something
  }

  @override
  void onWindowEnterFullScreen() {
    // do something
  }

  @override
  void onWindowLeaveFullScreen() {
    // do something
  }
}

Quit on close

If you need to use the hide method, you need to disable QuitOnClose.

macOS

macos/Runner/AppDelegate.swift

import Cocoa
import FlutterMacOS

@NSApplicationMain
class AppDelegate: FlutterAppDelegate {
  override func applicationShouldTerminateAfterLastWindowClosed(_ sender: NSApplication) -> Bool {
-    return true
+    return false
  }
}

Windows

windows/runner/main.cpp

int APIENTRY wWinMain(_In_ HINSTANCE instance, _In_opt_ HINSTANCE prev,
                      _In_ wchar_t *command_line, _In_ int show_command) {
  // ...

-  window.SetQuitOnClose(true);
+  window.SetQuitOnClose(false);

  // ...

  return EXIT_SUCCESS;
}

Hidden at launch

macOS

import Cocoa
import FlutterMacOS
+import window_manager

class MainFlutterWindow: NSWindow {
    override func awakeFromNib() {
        let flutterViewController = FlutterViewController.init()
        let windowFrame = self.frame
        self.contentViewController = flutterViewController
        self.setFrame(windowFrame, display: true)

        RegisterGeneratedPlugins(registry: flutterViewController)

        super.awakeFromNib()
    }

+    override public func order(_ place: NSWindow.OrderingMode, relativeTo otherWin: Int) {
+        super.order(place, relativeTo: otherWin)
+        hiddenWindowAtLaunch()
+    }
}

Who's using it?

• AuthPass - Password Manager based on Flutter for all platforms. Keepass 2.x (kdbx 3.x) compatible.
• Biyi (比译) - A convenient translation and dictionary app written in dart / Flutter.
• BlueBubbles - BlueBubbles is an ecosystem of apps bringing iMessage to Android, Windows, and Linux
• Yukino - Yukino lets you read manga or stream anime ad-free from multiple sources.

Discussion

Welcome to join the discussion group to share your suggestions and ideas with me.

• WeChat Group 请添加我的微信 lijy91，并备注 LeanFlutter
• QQ Group
• Telegram Group

API

WindowManager

Method	Description	Linux	macOS	Windows
focus	Focuses on the window.	✔️	✔️	➖
blur	Removes focus from the window.	➖	✔️	➖
show	Shows and gives focus to the window.	✔️	✔️	✔️
hide	Hides the window.	✔️	✔️	✔️
isVisible	Returns bool - Whether the window is visible to the user.	✔️	✔️	✔️
isMaximized	Returns bool - Whether the window is maximized.	✔️	✔️	✔️
maximize	Maximizes the window.	✔️	✔️	✔️
unmaximize	Unmaximizes the window.	✔️	✔️	✔️
isMinimized	Returns bool - Whether the window is minimized.	✔️	✔️	✔️
minimize	Minimizes the window.	✔️	✔️	✔️
restore	Restores the window from minimized state to its previous state.	✔️	✔️	✔️
isFullScreen	Returns bool - Whether the window is in fullscreen mode.	✔️	✔️	✔️
setFullScreen	Sets whether the window should be in fullscreen mode.	✔️	✔️	✔️
getBounds	Returns Rect - The bounds of the window as Object.	✔️	✔️	✔️
setBounds	Resizes and moves the window to the supplied bounds.	✔️	✔️	✔️
getPosition	Returns Offset - Contains the window's current position.	✔️	✔️	✔️
setPosition	Moves window to x and y.	✔️	✔️	✔️
getSize	Returns Size - Contains the window's width and height.	✔️	✔️	✔️
setSize	Resizes the window to width and height.	✔️	✔️	✔️
setMinimumSize	Sets the minimum size of window to width and height.	✔️	✔️	✔️
setMaximumSize	Sets the maximum size of window to width and height.	✔️	✔️	✔️
isResizable	Returns bool - Whether the window can be manually resized by the user.	✔️	✔️	✔️
setResizable	Sets whether the window can be manually resized by the user.	✔️	✔️	✔️
isMovable	Returns bool - Whether the window can be moved by user. On Linux always returns true.	➖	✔️	➖
setMovable	Sets whether the window can be moved by user. On Linux does nothing.	➖	✔️	➖
isMinimizable	Returns bool - Whether the window can be manually minimized by the user. On Linux always returns true.	➖	✔️	✔️
setMinimizable	Sets whether the window can be manually minimized by user. On Linux does nothing.	➖	✔️	✔️
isClosable	Returns bool - Whether the window can be manually closed by user. On Linux always returns true.	✔️	✔️	✔️
setClosable	Sets whether the window can be manually closed by user. On Linux does nothing.	✔️	✔️	✔️
isAlwaysOnTop	Returns bool - Whether the window is always on top of other windows.	✔️	✔️	✔️
setAlwaysOnTop	Sets whether the window should show always on top of other windows.	✔️	✔️	✔️
getTitle	Returns String - The title of the native window.	✔️	✔️	✔️
setTitle	Changes the title of native window to title.	✔️	✔️	✔️
setSkipTaskbar	Makes the window not show in the taskbar / dock.	✔️	✔️	✔️
hasShadow	Returns bool - Whether the window has a shadow.	➖	✔️	➖
setHasShadow	Sets whether the window should have a shadow.	➖	✔️	➖
startDragging	-	✔️	✔️	✔️

WindowListener

Method	Description	Linux	macOS	Windows
onWindowFocus	Emitted when the window gains focus.	✔️	✔️	✔️
onWindowBlur	Emitted when the window loses focus.	✔️	✔️	✔️
onWindowMaximize	Emitted when window is maximized.	✔️	✔️	✔️
onWindowUnmaximize	Emitted when the window exits from a maximized state.	✔️	✔️	✔️
onWindowMinimize	Emitted when the window is minimized.	✔️	✔️	✔️
onWindowRestore	Emitted when the window is restored from a minimized state.	✔️	✔️	✔️
onWindowResize	Emitted after the window has been resized.	✔️	✔️	✔️
onWindowMove	Emitted when the window is being moved to a new position.	✔️	✔️	✔️
onWindowEnterFullScreen	Emitted when the window enters a full-screen state.	✔️	✔️	✔️
onWindowLeaveFullScreen	Emitted when the window leaves a full-screen state.	✔️	✔️	✔️

License

MIT