We use the install_plugin plugin to install apk for android; and using url to go to app store for iOS.
To use this plugin, add install_plugin as a dependency in your pubspec.yaml file. For example:
dependencies:
install_plugin: '^2.1.0'Your project need create with swift.
You need to request permission for READ_EXTERNAL_STORAGE to read the apk file. You can handle the storage permission using flutter_permission_handler.
<!-- read permissions for external storage -->
<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
In Android version >= 8.0 , You need to request permission for REQUEST_INSTALL_PACKAGES to install the apk file
<!-- installation package permissions -->
<uses-permission android:name="android.permission.REQUEST_INSTALL_PACKAGES" />
In Android version <= 6.0 , You need to request permission for WRITE_EXTERNAL_STORAGE to copy the apk from the app private location to the download directory
<!-- write permissions for external storage -->
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
install apk from the internet
_networkInstallApk() async {
if (_progressValue != 0 && _progressValue < 1) {
_showResMsg("Wait a moment, downloading");
return;
}
_progressValue = 0.0;
var appDocDir = await getTemporaryDirectory();
String savePath = appDocDir.path + "/takeaway_phone_release_1.apk";
String fileUrl =
"https://s3.cn-north-1.amazonaws.com.cn/mtab.kezaihui.com/apk/takeaway_phone_release_1.apk";
await Dio().download(fileUrl, savePath, onReceiveProgress: (count, total) {
final value = count / total;
if (_progressValue != value) {
setState(() {
if (_progressValue < 1.0) {
_progressValue = count / total;
} else {
_progressValue = 0.0;
}
});
print((_progressValue * 100).toStringAsFixed(0) + "%");
}
});
final res = await InstallPlugin.install(savePath);
_showResMsg(
"install apk ${res['isSuccess'] == true ? 'success' : 'fail:${res['errorMessage'] ?? ''}'}");
}install apk from the local storage
_localInstallApk() async {
FilePickerResult? result = await FilePicker.platform.pickFiles();
if (result != null) {
final res = await InstallPlugin.install(result.files.single.path ?? '');
_showResMsg(
"install apk ${res['isSuccess'] == true ? 'success' : 'fail:${res['errorMessage'] ?? ''}'}");
} else {
// User canceled the picker
_showResMsg("User canceled the picker apk");
}
}Go to AppStore , example appStore url : https://itunes.apple.com/cn/app/%E5%86%8D%E6%83%A0%E5%90%88%E4%BC%99%E4%BA%BA/id1375433239?l=zh&ls=1&mt=8
_gotoAppStore(String url) async {
url = url.isEmpty ? _defaultUrl : url;
final res = await InstallPlugin.install(url);
_showResMsg(
"go to appstroe ${res['isSuccess'] == true ? 'success' : 'fail:${res['errorMessage'] ?? ''}'}");
}