套件詳情v0.8.0

flutter_android

一個用於 Android 平台特定 API 的 Flutter 插件，透過將 Android 繫結集中於單一套件中，減少重複努力。

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安裝套件

flutter pub add flutter_android

套件介紹

根據套件公開資料產生的選型評估，僅供參考。

一個 Flutter 插件，提供對 Android 特定平台 API 的存取，讓開發者能在 Flutter 應用中利用原生 Android 功能。透過將 Android 綁定集中於一個套件中，可減少程式碼重複並簡化跨專案的開發流程。此插件設計為與 Flutter 的平台通道系統無縫整合，可實現 Dart 與原生 Android 程式碼之間的高效通訊。支援一連串獨特的 Android 裝置層級功能與系統互動。

適用情境

存取 Android 特定的系統功能
整合原生 Android 庫
減少Flutter專案之間的程式碼重複
建構平台優化的 Android 經驗
從 Flutter 啟用高級設備控制

主要特色

集中式 Android API 繫結
原生整合的最小樣板程式碼
支援 Flutter 的平台通道
專為可維護性設計
開源且由社群驅動

適合對象

專注於 Android 的 Flutter 開發者
維護多個 Flutter 應用的團隊
需要深度 Android 結合的專案
開發人員避免重複的平台程式碼

使用建議

僅限 Android 平台
需要了解 Android 原生開發
不適用於僅跨平台的使用案例
依賴於平台通道的正確設定
可能需要為新的 Android SDK 版本進行更新

原始 README

以下為關聯原始碼儲存庫的 README 原文快照，最新內容請造訪原始碼儲存庫。

Flutter Android Bindings

This is a Flutter plugin for using Android's numerous platform-specific APIs in Flutter apps.

Screenshot

Prerequisites

Dart 2.8+ and Flutter 1.17+

Compatibility

Android only.

Installation

dependencies:
  flutter_android: ^0.8.0

Features

Implements bindings to a growing set of Android's platform-specific APIs.
Reduces duplication of effort by centralizing Android bindings in a single package.

Feature Table

Feature	Flutter API
Activity launch	`android_content.Intent#startActivity()`
Bluetooth scanning	`android_bluetooth.BluetoothLeScanner`
Distance calculation	`android_location.Location.distanceBetween()`
Face detection	`android_media.FaceDetector`
Heart-rate monitoring	`android_hardware.SensorManager.getDefaultSensor()`
Parcel serialization	`android_os.Parcel`
Sensor event streams	`android_hardware.Sensor#subscribe()`

TODO: dirs

Examples

Activity launch

import 'package:flutter_android/android_content.dart' show Intent;

await Intent(
  action: "android.intent.action.VIEW", // Intent.ACTION_VIEW
  data: Uri.parse("https://flutter.dev"),
).startActivity();

Parcel serialization

import 'package:flutter_android/android_os.dart' show Parcel;

var parcel = Parcel.obtain()
  ..writeBoolean(true)
  ..writeInt(42)
  ..writeDouble(3.1415)
  ..writeString("Hello, world!")
  ..writeList(<Object>[1, 2, 3])
  ..writeMap(<String, Object>{"a": 1, "b": 2, "c": 3});

await _channel.invokeMethod('someJavaMethod', parcel.asUint8List());

// In Java, your MethodCallHandler's call.arguments contains the marshaled Parcel

Face detection

import 'package:flutter_android/android_graphics.dart' show Bitmap;
import 'package:flutter_android/android_media.dart' show Face, FaceDetector;

var photo = Image.asset("images/einstein.png");

var bitmap = Bitmap.fromAssetImage(photo.image as AssetImage);
var detector = FaceDetector(width: 280, height: 396);

for (var face in await detector.findFaces(bitmap)) {
  if (face.confidence < Face.CONFIDENCE_THRESHOLD) {
    continue; // skip dubious results below the cut-off threshold
  }
  print("Found a face at (${face.midPoint.x}, ${face.midPoint.y}) with confidence ${face.confidence}");
}

Heart-rate monitoring

import 'package:flutter_android/android_hardware.dart'
    show Sensor, SensorEvent, SensorManager;

var sensor = await SensorManager.getDefaultSensor(Sensor.TYPE_HEART_RATE);

var events = await sensor.subscribe();
events.listen((SensorEvent event) {
  print(event.values[0]);
});

Frequently Asked Questions

TODO

Caveats

iOS is not and cannot be supported. All flutter_android APIs throw an AssertionError if they are invoked when running on iOS. For cross-platform apps, we recommend that you depend on the platform package to conditionalize your use of Android APIs.

Reference

`android`

import 'package:flutter_android/android.dart' as android;

`android_app`

import 'package:flutter_android/android_app.dart' as android_app;

`android_bluetooth`

import 'package:flutter_android/android_bluetooth.dart' as android_bluetooth;

`android_content`

import 'package:flutter_android/android_content.dart' as android_content;

`android_database`

import 'package:flutter_android/android_database.dart' as android_database;

`android_graphics`

import 'package:flutter_android/android_graphics.dart' as android_graphics;

`android_hardware`

import 'package:flutter_android/android_hardware.dart' as android_hardware;

`android_location`

import 'package:flutter_android/android_location.dart' as android_location;

Location

`android_media`

import 'package:flutter_android/android_media.dart' as android_media;

`android_os`

import 'package:flutter_android/android_os.dart' as android_os;

Cross-Reference

Android	Flutter
`android.app`	`android_app`
`android.app.Activity`	`android_app.Activity`
`android.app.ActivityManager`	`android_app.ActivityManager`
`android.app.AlarmManager`	`android_app.AlarmManager`
`android.app.AuthenticationRequiredException`	`android_app.AuthenticationRequiredException`
`android.app.DownloadManager`	`android_app.DownloadManager`
`android.app.KeyguardManager`	`android_app.KeyguardManager`
`android.app.Notification`	`android_app.Notification`
`android.app.Notification.Action`	`android_app.NotificationAction`
`android.app.Notification.Builder`	`android_app.NotificationBuilder`
`android.app.NotificationManager`	`android_app.NotificationManager`
`android.app.PendingIntent`	`android_app.PendingIntent`
`android.app.SearchManager`	`android_app.SearchManager`
`android.app.WallpaperColors`	`android_app.WallpaperColors`
`android.app.WallpaperInfo`	`android_app.WallpaperInfo`
`android.app.WallpaperManager`	`android_app.WallpaperManager`
`android.bluetooth`	`android_bluetooth`
`android.bluetooth.BluetoothAdapter`	`android_bluetooth.BluetoothAdapter`
`android.bluetooth.BluetoothDevice`	`android_bluetooth.BluetoothDevice`
`android.bluetooth.BluetoothHeadset`	`android_bluetooth.BluetoothHeadset`
`android.bluetooth.BluetoothManager`	`android_bluetooth.BluetoothManager`
`android.bluetooth.le.BluetoothLeScanner`	`android_bluetooth.BluetoothLeScanner`
`android.bluetooth.le`	`android_bluetooth`
`android.content`	`android_content`
`android.content.ActivityNotFoundException`	`android_content.ActivityNotFoundException`
`android.content.ComponentName`	`android_content.ComponentName`
`android.content.ContentValues`	`android_content.ContentValues`
`android.content.Context`	`android_content.Context`
`android.content.Intent`	`android_content.Intent`
`android.content.IntentFilter`	`android_content.IntentFilter`
`android.content.SharedPreferences`	`android_content.SharedPreferences`
`android.database`	`android_database`
`android.database.Cursor`	`android_database.Cursor`
`android.database.CursorIndexOutOfBoundsException`	`android_database.CursorIndexOutOfBoundsException`
`android.database.DatabaseUtils`	`android_database.DatabaseUtils`
`android.database.MatrixCursor`	`android_database.MatrixCursor`
`android.database.SQLException`	`android_database.SQLException`
`android.graphics`	`android_graphics`
`android.graphics.Bitmap`	`android_graphics.Bitmap`
`android.graphics.Color`	`dart-ui.Color`
`android.graphics.Point`	`android_graphics.Point`
`android.graphics.PointF`	`android_graphics.PointF`
`android.graphics.drawable.Icon`	`flutter.Icon`
`android.hardware`	`android_hardware`
`android.hardware.Sensor`	`android_hardware.Sensor`
`android.hardware.SensorEvent`	`android_hardware.SensorEvent`
`android.hardware.SensorEventListener`	`android_hardware.SensorEventListener`
`android.hardware.SensorManager`	`android_hardware.SensorManager`
`android.location`	`android_location`
`android.location.Location`	`android_location.Location`
`android.media`	`android_media`
`android.media.FaceDetector`	`android_media.FaceDetector`
`android.media.FaceDetector.Face`	`android_media.Face`
`android.net`	`android_net`
`android.nfc`	`android_nfc`
`android.os`	`android_os`
`android.os.BatteryManager`	`android_os.BatteryManager`
`android.os.Build`	`android_os.Build`
`android.os.Bundle`	`android_os.Bundle`
`android.os.Environment`	`android_os.Environment`
`android.os.HardwarePropertiesManager`	`android_os.HardwarePropertiesManager`
`android.os.Parcel`	`android_os.Parcel`
`android.os.Parcelable`	`android_os.Parcelable`
`android.os.PowerManager`	`android_os.PowerManager`
`android.os.Process`	`android_os.Process`
`android.os.StatFs`	`android_os.StatFs`
`android.os.SystemClock`	`android_os.SystemClock`
`android.os.UserManager`	`android_os.UserManager`
`android.os.VibrationEffect`	`android_os.VibrationEffect`
`android.os.Vibrator`	`android_os.Vibrator`
`android.provider`	`android_provider`
`android.security`	`android_security`
`android.speech`	`android_speech`
`android.telephony`	`android_telephony`
`android.view`	`android_view`
`java.util.Locale`	`dart-ui.Locale`

所屬分類

Android/iOS 裝置軟體與硬體

依賴

依賴清單 2 項

meta^1.1.6
typed_data^1.2.0

原始碼儲存庫

drydart/flutter_android

flutter_android

☆ 132 星標⑂ 22 分支

DartJavaflutterflutter-plugindart-library

使用此套件的專案

drydart/model_viewer.dart

model_viewer.dart

☆ 214 星標⑂ 114 分支

JavaScriptDartgltfgltf23d

安裝套件

套件介紹

適用情境

主要特色

適合對象

使用建議

原始 README

Flutter Android Bindings

Screenshot

Prerequisites

Compatibility

Installation

Features

Feature Table

Examples

Activity launch

Parcel serialization

Face detection

Heart-rate monitoring

Frequently Asked Questions

Caveats

Reference

Cross-Reference

See Also

所屬分類

依賴

原始碼儲存庫

flutter_android

使用此套件的專案

model_viewer.dart