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.markdown-body { line-height: 1.75; font-weight: 400; font-size: 15px; overflow-x: hidden; color: rgba(43, 43, 43, 1); font-family: -apple-system, system-ui, BlinkMacSystemFont, Helvetica Neue, PingFang SC, Hiragino Sans GB, Microsoft YaHei, Arial, sans-serif; background-image: linear-gradient(90deg, rgba(159, 219, 252, 0.15) 3%, rgba(0, 0, 0, 0) 0), linear-gradient(1turn, rgba(159, 219, 252, 0.15) 3%, rgba(0, 0, 0, 0) 0); background-size: 20px 20px; background-position: center }
.markdown-body h1, .markdown-body h2, .markdown-body h3, .markdown-body h4, .markdown-body h5, .markdown-body h6 { padding: 30px 0; margin-top: 35px; margin-bottom: 10px; color: rgba(77, 208, 225, 1) }
.markdown-body h1 { font-size: 30px; text-align: center; position: relative; width: max-content; margin: 0 auto }
.markdown-body h1:before { position: absolute; content: ""; z-index: -1; top: -20px; height: 100%; width: 100px; left: 0; right: 0; margin: 0 auto; background: 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.markdown-body h1:after { position: absolute; content: ""; width: 150%; left: -25%; height: 50%; bottom: 12px; border-radius: 50%; background: linear-gradient(rgba(0, 0, 0, 0) 80%, rgba(77, 208, 225, 0.8)); opacity: 0.6; animation: 6s linear infinite h1animate }
@keyframes h1Animate { 0% { background-position: right bottom } 50% { background-position: right } 100% { background-position: right bottom } }
.markdown-body h2 { display: block; border-bottom: 4px solid rgba(77, 208, 225, 1); position: relative; font-size: 24px; padding: 12px 32px; margin: 30px 0 }
.markdown-body h2:before { width: 24px; height: 24px; left: 0; top: 0; margin: auto; background-size: 24px 24px; background-image: url("data:image/png;base64,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") }
.markdown-body h2:after, .markdown-body h2:before { content: ""; display: block; position: absolute; bottom: 0 }
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.markdown-body h3 { margin: 30px 0; font-size: 18px; position: relative; padding: 4px 32px; width: max-content }
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.markdown-body h5 { font-size: 15px }
.markdown-body h6 { margin-top: 5px }
.markdown-body p { line-height: inherit; margin: 22px 0; letter-spacing: 2px; font-size: 14px; word-spacing: 2px }
.markdown-body img { max-width: 80%; border-radius: 6px; display: block; margin: 20px auto !important; object-fit: contain; box-shadow: 0 0 16px rgba(110, 110, 110, 0.45) }
.markdown-body figcaption { display: block; font-size: 13px; color: rgba(43, 43, 43, 1) }
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.markdown-body hr { border-top: 1px solid rgba(77, 208, 225, 1); border-right: none; border-bottom: none; border-left: none; margin-top: 32px; margin-bottom: 32px }
.markdown-body del { color: rgba(77, 208, 225, 1) }
.markdown-body code { border-radius: 2px; overflow-x: auto; background-color: rgba(77, 208, 225, 0.08); color: rgba(38, 198, 218, 1); padding: 0.195em 0.4em }
.markdown-body pre { font-family: Menlo, Monaco, Consolas, Courier New, monospace; overflow: auto; position: relative; line-height: 1.75; box-shadow: 0 0 8px rgba(110, 110, 110, 0.45); border-radius: 4px; margin: 16px }
.markdown-body pre:before { content: ""; display: block; height: 30px; width: 100%; margin-bottom: -7px; background: url("data:image/png;base64,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") 10px 10px / 40px no-repeat }
.markdown-body pre>code { font-size: 12px; padding: 15px 12px; margin: 0; word-break: normal; display: block; overflow-x: auto; color: rgba(51, 51, 51, 1); background: rgba(248, 248, 248, 1) }
.markdown-body a { color: rgba(77, 208, 225, 1); border-bottom: 1px solid rgba(77, 208, 225, 1); font-weight: 400; text-decoration: none; margin: 0 4px }
.markdown-body a:active, .markdown-body a:hover { background-color: rgba(77, 208, 225, 0.1) }
.markdown-body strong { color: rgba(38, 198, 218, 1) }
.markdown-body strong:before { content: "「" }
.markdown-body strong:after { content: "」" }
.markdown-body em { font-style: normal; color: rgba(77, 208, 225, 1); font-weight: 700 }
.markdown-body table { display: inline-block !important; font-size: 12px; width: auto; max-width: 100%; overflow: auto; border: 1px solid rgba(246, 246, 246, 1) }
.markdown-body thead { background: rgba(246, 246, 246, 1); color: rgba(0, 0, 0, 1); text-align: left }
.markdown-body tr:nth-child(2n) { background-color: rgba(77, 208, 225, 0.05) }
.markdown-body td, .markdown-body th { padding: 12px 7px; line-height: 24px }
.markdown-body td { min-width: 120px }
.markdown-body blockquote { margin: 2em 0; padding: 24px 32px; border-left: 4px solid rgba(38, 198, 218, 1); background: rgba(77, 208, 225, 0.15); position: relative }
.markdown-body blockquote:before { content: "❝"; top: 8px; left: 8px; color: rgba(77, 208, 225, 1); font-size: 30px; line-height: 1; font-weight: 700; position: absolute; opacity: 0.7 }
.markdown-body blockquote:after { content: "❞"; font-size: 30px; position: absolute; right: 8px; bottom: 0; color: rgba(77, 208, 225, 1); opacity: 0.7 }
.markdown-body blockquote p { color: rgba(89, 89, 89, 1); line-height: 2 }
.markdown-body ol, .markdown-body ul { color: rgba(89, 89, 89, 1); padding-left: 28px }
.markdown-body ol li, .markdown-body ul li { margin-bottom: 0; list-style: inherit }
.markdown-body ol li .task-list-item, .markdown-body ul li .task-list-item { list-style: none }
.markdown-body ol li .task-list-item ol, .markdown-body ol li .task-list-item ul, .markdown-body ul li .task-list-item ol, .markdown-body ul li .task-list-item ul { margin-top: 0 }
.markdown-body ol ol, .markdown-body ol ul, .markdown-body ul ol, .markdown-body ul ul { margin-top: 3px }
.markdown-body ol li { padding-left: 6px }
@media (max-width: 720px) { .markdown-body h1 { font-size: 24px } .markdown-body h2 { font-size: 20px } .markdown-body h3 { font-size: 18px } }.markdown-body pre, .markdown-body pre>code.hljs { color: rgba(169, 183, 198, 1); background: rgba(40, 43, 46, 1) }
.hljs-bullet, .hljs-literal, .hljs-number, .hljs-symbol { color: rgba(104, 151, 187, 1) }
.hljs-deletion, .hljs-keyword, .hljs-selector-tag { color: rgba(204, 120, 50, 1) }
.hljs-link, .hljs-template-variable, .hljs-variable { color: rgba(98, 151, 85, 1) }
.hljs-comment, .hljs-quote { color: rgba(128, 128, 128, 1) }
.hljs-meta { color: rgba(187, 181, 41, 1) }
.hljs-addition, .hljs-attribute, .hljs-string { color: rgba(106, 135, 89, 1) }
.hljs-section, .hljs-title, .hljs-type { color: rgba(255, 198, 109, 1) }
.hljs-name, .hljs-selector-class, .hljs-selector-id { color: rgba(232, 191, 106, 1) }
.hljs-emphasis { font-style: italic }
.hljs-strong { font-weight: 700 }

我正在参加「掘金·启航计划」

前置知识

什么是flutter_local_notifications插件

flutter_local_notificationsFlutter应用程序中使用的一个插件,它允许您在AndroidiOS设备上发送通知,包括状态栏通知和系统通知。

该插件支持自定义通知栏,包括通知图标、标题和内容,还支持本地化通知。同时该插件支持在Android上发送BigPictureBigTextStyle通知,使通知更加生动、醒目。

发送系统通知

在Android上发送系统通知

Android上发送系统通知需要先获取通知权限,然后构建通知对象,最后发送通知。下面是发送系统通知的步骤:

1.添加依赖项

要在Flutter应用程序中使用flutter_local_notifications插件,需要将其添加到应用程序的pubspec.yaml文件中。下面是pubspec.yaml文件中添加依赖项的示例代码:

dependencies:
flutter:
sdk: flutter
flutter_local_notifications: ^14.0.0+1

2.编写通知

在构建通知之前,需要先定义通知细节,包括通知的标题、内容和图标等。

var androidPlatformChannelSpecifics = AndroidNotificationDetails(
'your channel id', 'your channel name', 'your channel description',
importance: Importance.max, priority: Priority.high, ticker: 'ticker'); var platformChannelSpecifics = NotificationDetails(android: androidPlatformChannelSpecifics);
await flutterLocalNotificationsPlugin.show(
0, 'plain title', 'plain body', platformChannelSpecifics,
payload: 'item x');

3.发送通知

向Android发送通知时,需要检查设备是否已经授予通知权限。如果设备没有授予通知权限,应该请求授予权限。

Future<void> checkPermission() async {
var status = await flutterLocalNotificationsPlugin.getNotificationAppLaunchDetails();
if (status?.didNotificationLaunchApp ?? false) {
// handle notification tapped logic here
} var settings = await flutterLocalNotificationsPlugin.resolvePlatformSpecificImplementation<
AndroidFlutterLocalNotificationsPlugin>()?.getActiveNotifications();
if (settings == null || settings.isEmpty) {
var requestedSettings = await flutterLocalNotificationsPlugin
.resolvePlatformSpecificImplementation<
AndroidFlutterLocalNotificationsPlugin>()
?.requestPermissions();
if (requestedSettings ?? false) {
// handle permission granted case here
} else {
// handle permission denied case here
}
} else {
// handle notification already enabled case here
}
} Future<void> sendNotification() async {
var androidPlatformChannelSpecifics = AndroidNotificationDetails(
'your channel id', 'your channel name', 'your channel description',
importance: Importance.max, priority: Priority.high, ticker: 'ticker');
var platformChannelSpecifics =
NotificationDetails(android: androidPlatformChannelSpecifics);
await flutterLocalNotificationsPlugin.show(
0, 'plain title', 'plain body', platformChannelSpecifics,
payload: 'item x');
}

在iOS上发送系统通知

在iOS上发送系统通知也需要获取通知权限,然后构建通知对象,最后发送通知。下面是在iOS上发送系统通知的步骤:

1.添加依赖项

要在Flutter应用程序中使用flutter_local_notifications插件,需要将其添加到应用程序的pubspec.yaml文件中。下面是pubspec.yaml文件中添加依赖项的示例代码:

dependencies:
flutter:
sdk: flutter
flutter_local_notifications: ^14.0.0+1

2.编写通知

var iOSPlatformChannelSpecifics = IOSNotificationDetails(
sound: 'default',
presentAlert: true,
presentBadge: true,
presentSound: true,
badgeNumber: 1,
); var platformChannelSpecifics = NotificationDetails(iOS: iOSPlatformChannelSpecifics);
await flutterLocalNotificationsPlugin.show(
0,
'plain title',
'plain body',
platformChannelSpecifics,
payload: 'item x',
);

3.发送通知

在向iOS发送通知时,和Android发送通知不同,不需要检查通知权限。

Future<void> sendNotification() async {
var iOSPlatformChannelSpecifics = IOSNotificationDetails(
sound: 'default',
presentAlert: true,
presentBadge: true,
presentSound: true,
badgeNumber: 1,
); var platformChannelSpecifics = NotificationDetails(iOS: iOSPlatformChannelSpecifics);
await flutterLocalNotificationsPlugin.show(
0, 'plain title', 'plain body', platformChannelSpecifics,
payload: 'item x');
}

发送状态栏通知

在Android上发送状态栏通知

发送状态栏通知需要定义通知细节,包括通知的标题、内容、优先级和点击处理等,然后发送通知。下面是在Android上发送状态栏通知的步骤:

1.添加依赖项

要在Flutter应用程序中使用flutter_local_notifications插件,需要将其添加到应用程序的pubspec.yaml文件中。下面是pubspec.yaml文件中添加依赖项的示例代码:

dependencies:
flutter:
sdk: flutter
flutter_local_notifications: ^14.0.0+1

2.编写通知

在构建状态栏通知之前,需要先定义通知组,然后定义通知细节,包括通知的标题、内容、图标和优先级等。

var androidPlatformChannelSpecifics = AndroidNotificationDetails(
'your channel id', 'your channel name', 'your channel description',
importance: Importance.max,
priority: Priority.high,
groupKey: 'com.android.example.WORK_EMAIL',
ticker: 'ticker',
styleInformation: BigTextStyleInformation(''),
autoCancel: false,
playSound: true,
sound: RawResourceAndroidNotificationSound('slow_spring_board'),
largeIcon: DrawableResourceAndroidBitmap('app_icon'),
color: const Color.fromARGB(255, 255, 0, 0),
ledColor: const Color.fromARGB(255, 255, 0, 0),
ledOnMs: 1000,
ledOffMs: 500,
); var platformChannelSpecifics =
NotificationDetails(android: androidPlatformChannelSpecifics);
await flutterLocalNotificationsPlugin.show(
0,
'plain title',
'plain body',
platformChannelSpecifics,
payload: 'item x',
);

3.发送通知

在向Android发送状态栏通知时,需要检查设备是否已经授予通知权限。如果设备没有授予通知权限,应该请求授予权限。

Future<void> checkPermission() async {
var status = await flutterLocalNotificationsPlugin.getNotificationAppLaunchDetails();
if (status?.didNotificationLaunchApp ?? false) {
// handle notification tapped logic here
} var settings = await flutterLocalNotificationsPlugin.resolvePlatformSpecificImplementation<
AndroidFlutterLocalNotificationsPlugin>()?.getActiveNotifications();
if (settings == null || settings.isEmpty) {
var requestedSettings = await flutterLocalNotificationsPlugin
.resolvePlatformSpecificImplementation<
AndroidFlutterLocalNotificationsPlugin>()
?.requestPermissions();
if (requestedSettings ?? false) {
// handle permission granted case here
} else {
// handle permission denied case here
}
} else {
// handle notification already enabled case here
}
} Future<void> sendNotification() async {
var androidPlatformChannelSpecifics = AndroidNotificationDetails(
'your channel id', 'your channel name', 'your channel description',
importance: Importance.max,
priority: Priority.high,
groupKey: 'com.android.example.WORK_EMAIL',
ticker: 'ticker',
styleInformation: BigTextStyleInformation(''),
autoCancel: false,
playSound: true,
sound: RawResourceAndroidNotificationSound('slow_spring_board'),
largeIcon: DrawableResourceAndroidBitmap('app_icon'),
color: const Color.fromARGB(255, 255, 0, 0),
ledColor: const Color.fromARGB(255, 255, 0, 0),
ledOnMs: 1000,
ledOffMs: 500,
); var platformChannelSpecifics =
NotificationDetails(android: androidPlatformChannelSpecifics);
await flutterLocalNotificationsPlugin.show(
0,
'plain title',
'plain body',
platformChannelSpecifics,
payload: 'item x',
);
}

在iOS上发送状态栏通知

在iOS上发送状态栏通知需要定义通知细节,包括通知的标题、内容、优先级和点击处理等,然后发送通知。下面是在iOS上发送状态栏通知的步骤:

1.添加依赖项

要在Flutter应用程序中使用flutter_local_notifications插件,需要将其添加到应用程序的pubspec.yaml文件中。下面是pubspec.yaml文件中添加依赖项的示例代码:

dependencies:
flutter:
sdk: flutter
flutter_local_notifications: ^14.0.0+1

2.编写通知

在构建状态栏通知之前,需要定义通知细节,包括通知的标题、内容、优先级和点击处理等。

var iOSPlatformChannelSpecifics = IOSNotificationDetails(
sound: 'default',
presentAlert: true,
presentBadge: true,
presentSound: true,
badgeNumber: 1,
); var platformChannelSpecifics =
NotificationDetails(iOS: iOSPlatformChannelSpecifics);
await flutterLocalNotificationsPlugin.show(
0,
'plain title',
'plain body',
platformChannelSpecifics,
payload: 'item x',
);

3.发送通知

在向iOS发送状态栏通知时,和Android发送通知不同,不需要检查通知权限。

Future<void> sendNotification() async {
var iOSPlatformChannelSpecifics = IOSNotificationDetails(
sound: 'default',
presentAlert: true,
presentBadge: true,
presentSound: true,
badgeNumber: 1,
); var platformChannelSpecifics =
NotificationDetails(iOS: iOSPlatformChannelSpecifics);
await flutterLocalNotificationsPlugin.show(
0,
'plain title',
'plain body',
platformChannelSpecifics,
payload: 'item x',
);
}

总结

通过本文给大家介绍了如何在Flutter中使用flutter_local_notifications插件发送系统通知和状态栏通知,包括在Android和iOS设备上分别发送通知的步骤和注意事项。

总的来说,flutter_local_notifications插件非常方便,为Flutter开发人员提供了发送通知的标准化解决方案,可以快速实现应用程序的通知功能。但是,在使用时需要注意保护用户隐私和安全,避免滥发通知,以及遵守相关规定和政策。

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