我当前正在开发一个处于beta模式的应用程序。因此,我想向他们展示它们的版本。例如,“ v1.0b10-iOS”。到目前为止,我已经获得了以下代码:Text("Build: V1.0b10 - " + (Platform.isIOS ? "iOS" : "Android"))
。我如何才能在Flutter中获得内部版本和编号?
答案 0 :(得分:16)
这是供将来的访问者使用的更详细的答案。
有一个插件可以帮助您获取版本名称和版本号。
在pubspec.yaml中,添加package_info
程序包。
dependencies:
package_info: ^0.4.0+3
将版本号更新为current。
在所需的文件中,添加以下导入。
import 'package:package_info/package_info.dart';
在您的代码中,您可以获取应用版本名称和类似的代码:
PackageInfo packageInfo = await PackageInfo.fromPlatform();
String versionName = packageInfo.version;
String versionCode = packageInfo.buildNumber;
答案 1 :(得分:7)
您可以使用此软件包:
https://pub.dartlang.org/packages/package_info
版本摘自:
Android
build.gradle , versionCode and versionName
iOS
Info.plist , CFBundleVersion
您可以通过插件获取该值,然后检查它是Android还是iOS,并添加所需的后缀。
答案 2 :(得分:4)
安装 if settings.DEBUG:
urlpatterns += static("/assets/",
document_root=settings.FRONTEND_PRODUCTION_DIR)
后,您可以直接在您的小部件树中将其与未来的构建器一起使用:
package_info
答案 3 :(得分:2)
RE 对 package_info
的多次引用,请注意此软件包已被弃用,推荐的替代品是 Flutter Community Plus Plugins 版本,package_info_plus。
答案 4 :(得分:0)
您可以使用get_version在iOS和Android上查询有关应用程序版本名称,版本代码,平台和操作系统版本以及应用程序ID的信息
将此添加到软件包的pubspec.yaml
文件中:
dependencies:
get_version: ^0.2.2
现在在Dart代码中,您可以使用:
import 'package:get_version/get_version.dart';
转到build.gradle
并更新:
defaultConfig {
versionCode 1
versionName "1.0"
minSdkVersion 16
testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
}
使用方法
class _MyAppState extends State<MyApp> {
String _platformVersion = 'Unknown';
String _projectVersion = '';
String _projectCode = '';
String _projectAppID = '';
String _projectName = '';
@override
initState() {
super.initState();
initPlatformState();
}
// Platform messages are asynchronous, so we initialize in an async method.
initPlatformState() async {
String platformVersion;
// Platform messages may fail, so we use a try/catch PlatformException.
try {
platformVersion = await GetVersion.platformVersion;
} on PlatformException {
platformVersion = 'Failed to get platform version.';
}
String projectVersion;
// Platform messages may fail, so we use a try/catch PlatformException.
try {
projectVersion = await GetVersion.projectVersion;
} on PlatformException {
projectVersion = 'Failed to get project version.';
}
String projectCode;
// Platform messages may fail, so we use a try/catch PlatformException.
try {
projectCode = await GetVersion.projectCode;
} on PlatformException {
projectCode = 'Failed to get build number.';
}
String projectAppID;
// Platform messages may fail, so we use a try/catch PlatformException.
try {
projectAppID = await GetVersion.appID;
} on PlatformException {
projectAppID = 'Failed to get app ID.';
}
String projectName;
// Platform messages may fail, so we use a try/catch PlatformException.
try {
projectName = await GetVersion.appName;
} on PlatformException {
projectName = 'Failed to get app name.';
}
// If the widget was removed from the tree while the asynchronous platform
// message was in flight, we want to discard the reply rather than calling
// setState to update our non-existent appearance.
if (!mounted) return;
setState(() {
_platformVersion = platformVersion;
_projectVersion = projectVersion;
_projectCode = projectCode;
_projectAppID = projectAppID;
_projectName = projectName;
});
}
}
答案 5 :(得分:0)
您可以尝试使用new_version
插件。使用此插件,您可以安装App Version,Playstore App Version和可以重定向到Playstore的应用URL。
void versionCheck() async {
final NewVersion newVersion = NewVersion(context: context);
VersionStatus versionStatus = await newVersion.getVersionStatus();
if (versionStatus != null && versionStatus.canUpdate) {
await ConfirmDialog(
context: context,
title: 'Update Available',
body: Text('A new version, ${versionStatus.storeVersion}, is available.'),
acceptButton: 'Update Now',
cancelButton: 'Update Later'
).then((ConfirmAction res) async {
if (res == ConfirmAction.CONFIRM && await canLaunch(versionStatus.appStoreLink)) {
await launch(versionStatus.appStoreLink, forceWebView: false);
}
});
}
}
自定义警报对话框
enum ConfirmAction{ CONFIRM, CANCEL }
Future<ConfirmAction> ConfirmDialog({
BuildContext context,
String title,
Widget body,
String acceptButton,
String cancelButton
})
=> showDialog(
context: context,
barrierDismissible: false,
builder: (BuildContext context) => AlertDialog(
title: Wrap(
crossAxisAlignment: WrapCrossAlignment.center,
spacing: 4,
children: <Widget>[
Text(title)
],
),
content: Wrap(
runSpacing: 10,
children: <Widget>[
body,
],
),
actions: <Widget>[
FlatButton(
padding: EdgeInsets.all(6),
child: Text(acceptButton ?? 'Confirm'),
onPressed: (){
Navigator.of(context, rootNavigator: true).pop(ConfirmAction.CONFIRM);
}
),
FlatButton(
padding: EdgeInsets.all(6),
child: Text(cancelButton ?? 'Cancel'),
onPressed: (){
Navigator.of(context, rootNavigator: true).pop(ConfirmAction.CANCEL);
}
),
],
)
);