* 겪고 있는 문제 상황을 최대한 자세하게 작성해주세요.
* 문제 해결을 위해 어떤 시도를 해보았는지 구체적으로 함께 알려주세요.
[코드스니펫] bottomNavigationBar 자리에 광고 배너 넣기 - 단계에서 멈췄습니다.
지도를 부탁합니다.
작성한 코드 및 에러 메세지
콘솔 ---------------------
Launching lib\main.dart on sdk gphone64 x86 64 in debug mode...
main.dart:1
C:\flutter\mymemo_admob\android\app\src\debug\AndroidManifest.xml Error:
uses-sdk:minSdkVersion 16 cannot be smaller than version 19 declared in library [:google_mobile_ads] C:\flutter\mymemo_admob\build\google_mobile_ads\intermediates\merged_manifest\debug\AndroidManifest.xml as the library might be using APIs not available in 16
Suggestion: use a compatible library with a minSdk of at most 16,
or increase this project's minSdk version to at least 19,
or use tools:overrideLibrary="io.flutter.plugins.googlemobileads" to force usage (may lead to runtime failures)
FAILURE: Build failed with an exception.
* What went wrong:
Execution failed for task ':app:processDebugMainManifest'.
* Try:
> Run with --stacktrace option to get the stack trace.
> Run with --info or --debug option to get more log output.
> Run with --scan to get full insights.
* Get more help at https://help.gradle.org
BUILD FAILED in 21s
┌─ Flutter Fix ─────────────────────────────────────────────────────────────────────────────────┐
│ The plugin google_mobile_ads requires a higher Android SDK version. │
│ Fix this issue by adding the following to the file │
│ C:\flutter\mymemo_admob\android\app\build.gradle: │
│ android { │
│ defaultConfig { │
│ minSdkVersion 19
│ } │
│ } │
│ │
│ Following this change, your app will not be available to users running Android SDKs below 19. │
│ Consider searching for a version of this plugin that supports these lower versions of the │
│ Android SDK instead. │
│ For more information, see: │
│ https://docs.flutter.dev/deployment/android#reviewing-the-gradle-build-configuration │
└───────────────────────────────────────────────────────────────────────────────────────────────┘
Exception: Gradle task assembleDebug failed with exit code 1
Exited (sigterm)
main.dart ------------------------------------------
import 'dart:io';
import 'package:flutter/cupertino.dart';
import 'package:flutter/material.dart';
import 'package:google_mobile_ads/google_mobile_ads.dart';
import 'package:provider/provider.dart';
import 'package:shared_preferences/shared_preferences.dart';
import 'memo_service.dart';
late SharedPreferences prefs;
void main() async {
WidgetsFlutterBinding.ensureInitialized();
prefs = await SharedPreferences.getInstance();
MobileAds.instance.initialize();
runApp(
MultiProvider(
providers: [
ChangeNotifierProvider(create: (context) => MemoService()),
],
child: const MyApp(),
),
);
}
class MyApp extends StatelessWidget {
const MyApp({super.key});
@override
Widget build(BuildContext context) {
return MaterialApp(
debugShowCheckedModeBanner: false,
home: HomePage(),
);
}
}
// 홈 페이지
class HomePage extends StatefulWidget {
const HomePage({super.key});
@override
State<HomePage> createState() => _HomePageState();
}
class _HomePageState extends State<HomePage> {
final BannerAd myBanner = BannerAd(
// Test 광고 ID, 광고 승인받은 후 생성한 광고 unit ID 로 바꾸기
adUnitId: Platform.isAndroid
? 'ca-app-pub-3940256099942544/6300978111' // Android ad unit ID
: 'ca-app-pub-3940256099942544/2934735716', // iOS ad unit ID
size: AdSize.fullBanner,
request: AdRequest(),
listener: BannerAdListener(
onAdFailedToLoad: (ad, error) {
ad.dispose();
},
),
);
@override
void initState() {
// TODO: implement initState
super.initState();
myBanner.load();
}
@override
Widget build(BuildContext context) {
return Consumer<MemoService>(
builder: (context, memoService, child) {
// memoService로 부터 memoList 가져오기
List<Memo> memoList = memoService.memoList;
return Scaffold(
appBar: AppBar(
title: Text("mymemo"),
),
body: memoList.isEmpty
? Center(child: Text("메모를 작성해 주세요"))
: ListView.builder(
itemCount: memoList.length, // memoList 개수 만큼 보여주기
itemBuilder: (context, index) {
Memo memo = memoList[index]; // index에 해당하는 memo 가져오기
return ListTile(
// 메모 고정 아이콘
leading: IconButton(
icon: Icon(CupertinoIcons.pin),
onPressed: () {
print('$memo : pin 클릭 됨');
},
),
// 메모 내용 (최대 3줄까지만 보여주도록)
title: Text(
memo.content,
maxLines: 3,
overflow: TextOverflow.ellipsis,
),
onTap: () {
// 아이템 클릭시
Navigator.push(
context,
MaterialPageRoute(
builder: (_) => DetailPage(
index: index,
),
),
);
},
);
},
),
floatingActionButton: FloatingActionButton(
child: Icon(Icons.add),
onPressed: () {
// + 버튼 클릭시 메모 생성 및 수정 페이지로 이동
memoService.createMemo(content: '');
Navigator.push(
context,
MaterialPageRoute(
builder: (_) => DetailPage(
index: memoService.memoList.length - 1,
),
),
);
},
),
bottomNavigationBar: Container(
alignment: Alignment.center,
width: myBanner.size.width.toDouble(),
height: myBanner.size.height.toDouble(),
child: AdWidget(ad: myBanner),
),
);
},
);
}
}
// 메모 생성 및 수정 페이지
// ignore: must_be_immutable
class DetailPage extends StatelessWidget {
DetailPage({super.key, required this.index});
final int index;
TextEditingController contentController = TextEditingController();
@override
Widget build(BuildContext context) {
MemoService memoService = context.read<MemoService>();
Memo memo = memoService.memoList[index];
contentController.text = memo.content;
return Scaffold(
appBar: AppBar(
actions: [
IconButton(
onPressed: () {
// 삭제 버튼 클릭시
showDeleteDialog(context, memoService);
},
icon: Icon(Icons.delete),
)
],
),
body: Padding(
padding: const EdgeInsets.all(16),
child: TextField(
controller: contentController,
decoration: InputDecoration(
hintText: "메모를 입력하세요",
border: InputBorder.none,
),
autofocus: true,
maxLines: null,
expands: true,
keyboardType: TextInputType.multiline,
onChanged: (value) {
// 텍스트필드 안의 값이 변할 때
memoService.updateMemo(index: index, content: value);
},
),
),
);
}
void showDeleteDialog(BuildContext context, MemoService memoService) {
showDialog(
context: context,
builder: (context) {
return AlertDialog(
title: Text("정말로 삭제하시겠습니까?"),
actions: [
// 취소 버튼
TextButton(
onPressed: () {
Navigator.pop(context);
},
child: Text("취소"),
),
// 확인 버튼
TextButton(
onPressed: () {
memoService.deleteMemo(index: index);
Navigator.pop(context); // 팝업 닫기
Navigator.pop(context); // HomePage 로 가기
},
child: Text(
"확인",
style: TextStyle(color: Colors.pink),
),
),
],
);
},
);
}
}
memo_service.dart ------------------------
import 'dart:convert';
import 'package:flutter/material.dart';
import 'main.dart';
// Memo 데이터의 형식을 정해줍니다. 추후 isPinned, updatedAt 등의 정보도 저장할 수 있습니다.
class Memo {
Memo({
required this.content,
});
String content;
Map toJson() {
return {'content': content};
}
factory Memo.fromJson(json) {
return Memo(content: json['content']);
}
}
// Memo 데이터는 모두 여기서 관리
class MemoService extends ChangeNotifier {
MemoService() {
loadMemoList();
}
List<Memo> memoList = [
Memo(content: '장보기 목록: 사과, 양파'), // 더미(dummy) 데이터
Memo(content: '새 메모'), // 더미(dummy) 데이터
];
createMemo({required String content}) {
Memo memo = Memo(content: content);
memoList.add(memo);
notifyListeners(); // Consumer<MemoService>의 builder 부분을 호출해서 화면 새로고침
saveMemoList();
}
updateMemo({required int index, required String content}) {
Memo memo = memoList[index];
memo.content = content;
notifyListeners();
saveMemoList();
}
deleteMemo({required int index}) {
memoList.removeAt(index);
notifyListeners();
saveMemoList();
}
saveMemoList() {
List memoJsonList = memoList.map((memo) => memo.toJson()).toList();
// [{"content": "1"}, {"content": "2"}]
String jsonString = jsonEncode(memoJsonList);
// '[{"content": "1"}, {"content": "2"}]'
prefs.setString('memoList', jsonString);
}
loadMemoList() {
String? jsonString = prefs.getString('memoList');
// '[{"content": "1"}, {"content": "2"}]'
if (jsonString == null) return; // null 이면 로드하지 않음
List memoJsonList = jsonDecode(jsonString);
// [{"content": "1"}, {"content": "2"}]
memoList = memoJsonList.map((json) => Memo.fromJson(json)).toList();
}
}
