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요약 : 32 -> 33
| android { compileSdk 33 |
에러내용 :
| 15 issues were found when checking AAR metadata: 1. Dependency 'androidx.appcompat:appcompat-resources:1.6.1' requires libraries and applications that depend on it to compile against version 33 or later of the Android APIs. :app is currently compiled against android-32. Also, the maximum recommended compile SDK version for Android Gradle plugin 7.2.1 is 32. Recommended action: Update this project's version of the Android Gradle plugin to one that supports 33, then update this project to use compileSdkVerion of at least 33. Note that updating a library or application's compileSdkVersion (which allows newer APIs to be used) can be done separately from updating targetSdkVersion (which opts the app in to new runtime behavior) and minSdkVersion (which determines which devices the app can be installed on). 2. Dependency 'androidx.appcompat:appcompat:1.6.1' requires libraries and applications that depend on it to compile against version 33 or later of the Android APIs. :app is currently compiled against android-32. Also, the maximum recommended compile SDK version for Android Gradle plugin 7.2.1 is 32. Recommended action: Update this project's version of the Android Gradle plugin to one that supports 33, then update this project to use compileSdkVerion of at least 33. Note that updating a library or application's compileSdkVersion (which allows newer APIs to be used) can be done separately from updating targetSdkVersion (which opts the app in to new runtime behavior) and minSdkVersion (which determines which devices the app can be installed on). 3. Dependency 'androidx.activity:activity:1.8.0' requires libraries and applications that depend on it to compile against version 34 or later of the Android APIs. :app is currently compiled against android-32. Also, the maximum recommended compile SDK version for Android Gradle plugin 7.2.1 is 32. Recommended action: Update this project's version of the Android Gradle plugin to one that supports 34, then update this project to use compileSdkVerion of at least 34. Note that updating a library or application's compileSdkVersion (which allows newer APIs to be used) can be done separately from updating targetSdkVersion (which opts the app in to new runtime behavior) and minSdkVersion (which determines which devices the app can be installed on). 4. Dependency 'androidx.savedstate:savedstate:1.2.1' requires libraries and applications that depend on it to compile against version 33 or later of the Android APIs. :app is currently compiled against android-32. Also, the maximum recommended compile SDK version for Android Gradle plugin 7.2.1 is 32. Recommended action: Update this project's version of the Android Gradle plugin to one that supports 33, then update this project to use compileSdkVerion of at least 33. Note that updating a library or application's compileSdkVersion (which allows newer APIs to be used) can be done separately from updating targetSdkVersion (which opts the app in to new runtime behavior) and minSdkVersion (which determines which devices the app can be installed on). 5. Dependency 'androidx.lifecycle:lifecycle-process:2.6.1' requires libraries and applications that depend on it to compile against version 33 or later of the Android APIs. :app is currently compiled against android-32. Also, the maximum recommended compile SDK version for Android Gradle plugin 7.2.1 is 32. Recommended action: Update this project's version of the Android Gradle plugin to one that supports 33, then update this project to use compileSdkVerion of at least 33. Note that updating a library or application's compileSdkVersion (which allows newer APIs to be used) can be done separately from updating targetSdkVersion (which opts the app in to new runtime behavior) and minSdkVersion (which determines which devices the app can be installed on). 6. Dependency 'androidx.lifecycle:lifecycle-livedata-core:2.6.1' requires libraries and applications that depend on it to compile against version 33 or later of the Android APIs. :app is currently compiled against android-32. Also, the maximum recommended compile SDK version for Android Gradle plugin 7.2.1 is 32. Recommended action: Update this project's version of the Android Gradle plugin to one that supports 33, then update this project to use compileSdkVerion of at least 33. Note that updating a library or application's compileSdkVersion (which allows newer APIs to be used) can be done separately from updating targetSdkVersion (which opts the app in to new runtime behavior) and minSdkVersion (which determines which devices the app can be installed on). 7. Dependency 'androidx.lifecycle:lifecycle-livedata:2.6.1' requires libraries and applications that depend on it to compile against version 33 or later of the Android APIs. :app is currently compiled against android-32. Also, the maximum recommended compile SDK version for Android Gradle plugin 7.2.1 is 32. Recommended action: Update this project's version of the Android Gradle plugin to one that supports 33, then update this project to use compileSdkVerion of at least 33. Note that updating a library or application's compileSdkVersion (which allows newer APIs to be used) can be done separately from updating targetSdkVersion (which opts the app in to new runtime behavior) and minSdkVersion (which determines which devices the app can be installed on). 8. Dependency 'androidx.lifecycle:lifecycle-viewmodel:2.6.1' requires libraries and applications that depend on it to compile against version 33 or later of the Android APIs. :app is currently compiled against android-32. Also, the maximum recommended compile SDK version for Android Gradle plugin 7.2.1 is 32. Recommended action: Update this project's version of the Android Gradle plugin to one that supports 33, then update this project to use compileSdkVerion of at least 33. Note that updating a library or application's compileSdkVersion (which allows newer APIs to be used) can be done separately from updating targetSdkVersion (which opts the app in to new runtime behavior) and minSdkVersion (which determines which devices the app can be installed on). 9. Dependency 'androidx.lifecycle:lifecycle-runtime:2.6.1' requires libraries and applications that depend on it to compile against version 33 or later of the Android APIs. :app is currently compiled against android-32. Also, the maximum recommended compile SDK version for Android Gradle plugin 7.2.1 is 32. Recommended action: Update this project's version of the Android Gradle plugin to one that supports 33, then update this project to use compileSdkVerion of at least 33. Note that updating a library or application's compileSdkVersion (which allows newer APIs to be used) can be done separately from updating targetSdkVersion (which opts the app in to new runtime behavior) and minSdkVersion (which determines which devices the app can be installed on). 10. Dependency 'androidx.lifecycle:lifecycle-viewmodel-savedstate:2.6.1' requires libraries and applications that depend on it to compile against version 33 or later of the Android APIs. :app is currently compiled against android-32. Also, the maximum recommended compile SDK version for Android Gradle plugin 7.2.1 is 32. Recommended action: Update this project's version of the Android Gradle plugin to one that supports 33, then update this project to use compileSdkVerion of at least 33. Note that updating a library or application's compileSdkVersion (which allows newer APIs to be used) can be done separately from updating targetSdkVersion (which opts the app in to new runtime behavior) and minSdkVersion (which determines which devices the app can be installed on). 11. Dependency 'androidx.core:core-ktx:1.9.0' requires libraries and applications that depend on it to compile against version 33 or later of the Android APIs. :app is currently compiled against android-32. Also, the maximum recommended compile SDK version for Android Gradle plugin 7.2.1 is 32. Recommended action: Update this project's version of the Android Gradle plugin to one that supports 33, then update this project to use compileSdkVerion of at least 33. Note that updating a library or application's compileSdkVersion (which allows newer APIs to be used) can be done separately from updating targetSdkVersion (which opts the app in to new runtime behavior) and minSdkVersion (which determines which devices the app can be installed on). 12. Dependency 'androidx.core:core:1.9.0' requires libraries and applications that depend on it to compile against version 33 or later of the Android APIs. :app is currently compiled against android-32. Also, the maximum recommended compile SDK version for Android Gradle plugin 7.2.1 is 32. Recommended action: Update this project's version of the Android Gradle plugin to one that supports 33, then update this project to use compileSdkVerion of at least 33. Note that updating a library or application's compileSdkVersion (which allows newer APIs to be used) can be done separately from updating targetSdkVersion (which opts the app in to new runtime behavior) and minSdkVersion (which determines which devices the app can be installed on). 13. Dependency 'androidx.profileinstaller:profileinstaller:1.3.0' requires libraries and applications that depend on it to compile against version 33 or later of the Android APIs. :app is currently compiled against android-32. Also, the maximum recommended compile SDK version for Android Gradle plugin 7.2.1 is 32. Recommended action: Update this project's version of the Android Gradle plugin to one that supports 33, then update this project to use compileSdkVerion of at least 33. Note that updating a library or application's compileSdkVersion (which allows newer APIs to be used) can be done separately from updating targetSdkVersion (which opts the app in to new runtime behavior) and minSdkVersion (which determines which devices the app can be installed on). 14. Dependency 'androidx.arch.core:core-runtime:2.2.0' requires libraries and applications that depend on it to compile against version 33 or later of the Android APIs. :app is currently compiled against android-32. Also, the maximum recommended compile SDK version for Android Gradle plugin 7.2.1 is 32. Recommended action: Update this project's version of the Android Gradle plugin to one that supports 33, then update this project to use compileSdkVerion of at least 33. Note that updating a library or application's compileSdkVersion (which allows newer APIs to be used) can be done separately from updating targetSdkVersion (which opts the app in to new runtime behavior) and minSdkVersion (which determines which devices the app can be installed on). 15. Dependency 'androidx.annotation:annotation-experimental:1.3.0' requires libraries and applications that depend on it to compile against version 33 or later of the Android APIs. :app is currently compiled against android-32. Also, the maximum recommended compile SDK version for Android Gradle plugin 7.2.1 is 32. Recommended action: Update this project's version of the Android Gradle plugin to one that supports 33, then update this project to use compileSdkVerion of at least 33. Note that updating a library or application's compileSdkVersion (which allows newer APIs to be used) can be done separately from updating targetSdkVersion (which opts the app in to new runtime behavior) and minSdkVersion (which determines which devices the app can be installed on). |
| public class MainActivity extends Activity { private WifiManager wifiManager; private ListView listView; protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_wifi_scanner);//activity_wifi_scanner.xml listView = findViewById(R.id.listView); ... Field can be converted to a local variable |
private ListView listView;가 protected void onCreate(Bundle savedInstanceState) {} 안에서만 사용되고 있으니, 함수 안으로 넣는것이 좋겠다는 말.
| public class MainActivity extends Activity { private WifiManager wifiManager; private ArrayAdapter<String> adapter; private Handler handler = new Handler(); Field 'handler' may be 'final' |
아래처럼 하는것이 좋겠다.
| public class MainActivity extends Activity { private WifiManager wifiManager; private ArrayAdapter<String> adapter; private final Handler handler = new Handler(); } |
handler 필드를 final로 선언하면 해당 필드는 초기화된 후 다시 할당할 수 없게 됩니다. 이러한 변경은 코드의 안정성을 향상시키고, 실수로 인한 버그를 방지할 수 있습니다.
handler 필드가 final로 선언되었으므로, 해당 필드는 초기화된 후 다시 할당할 수 없습니다. 이는 코드를 더욱 안전하게 만들어줍니다.
| // Sort wifi results based on RSSI strength Collections.sort(results, new Comparator<ScanResult>() { @Override public int compare(ScanResult lhs, ScanResult rhs) { return Integer.compare(rhs.level, lhs.level); } }); Anonymous new Comparator<ScanResult>() can be replaced with lambda |
이 경고는 Java 8부터 도입된 람다 표현식을 사용하여 코드를 간결하게 만들 수 있음을 알려줍니다. 람다 표현식은 함수형 인터페이스를 간결하게 구현할 수 있게 해주며 코드의 가독성을 향상시킵니다.
| // Sort wifi results based on RSSI strength using lambda expression Collections.sort(results, (lhs, rhs) -> Integer.compare(rhs.level, lhs.level)); |
빨간글씨로 표시된 에러는 파란색 "Import class" 누르면 해결됨.
| 16 issues were found when checking AAR metadata: 1. Dependency 'androidx.navigation:navigation-common:2.7.7' requires libraries and applications that depend on it to compile against version 34 or later of the Android APIs. :app is currently compiled against android-33. Also, the maximum recommended compile SDK version for Android Gradle plugin 7.2.1 is 32. Recommended action: Update this project's version of the Android Gradle plugin to one that supports 34, then update this project to use compileSdkVerion of at least 34. Note that updating a library or application's compileSdkVersion (which allows newer APIs to be used) can be done separately from updating targetSdkVersion (which opts the app in to new runtime behavior) and minSdkVersion (which determines which devices the app can be installed on). 2. Dependency 'androidx.navigation:navigation-runtime:2.7.7' requires libraries and applications that depend on it to compile against version 34 or later of the Android APIs. :app is currently compiled against android-33. Also, the maximum recommended compile SDK version for Android Gradle plugin 7.2.1 is 32. Recommended action: Update this project's version of the Android Gradle plugin to one that supports 34, then update this project to use compileSdkVerion of at least 34. Note that updating a library or application's compileSdkVersion (which allows newer APIs to be used) can be done separately from updating targetSdkVersion (which opts the app in to new runtime behavior) and minSdkVersion (which determines which devices the app can be installed on). 3. Dependency 'androidx.navigation:navigation-fragment:2.7.7' requires libraries and applications that depend on it to compile against version 34 or later of the Android APIs. :app is currently compiled against android-33. Also, the maximum recommended compile SDK version for Android Gradle plugin 7.2.1 is 32. Recommended action: Update this project's version of the Android Gradle plugin to one that supports 34, then update this project to use compileSdkVerion of at least 34. Note that updating a library or application's compileSdkVersion (which allows newer APIs to be used) can be done separately from updating targetSdkVersion (which opts the app in to new runtime behavior) and minSdkVersion (which determines which devices the app can be installed on). 4. Dependency 'androidx.navigation:navigation-ui:2.7.7' requires libraries and applications that depend on it to compile against version 34 or later of the Android APIs. :app is currently compiled against android-33. Also, the maximum recommended compile SDK version for Android Gradle plugin 7.2.1 is 32. Recommended action: Update this project's version of the Android Gradle plugin to one that supports 34, then update this project to use compileSdkVerion of at least 34. Note that updating a library or application's compileSdkVersion (which allows newer APIs to be used) can be done separately from updating targetSdkVersion (which opts the app in to new runtime behavior) and minSdkVersion (which determines which devices the app can be installed on). 5. Dependency 'androidx.activity:activity-ktx:1.8.0' requires libraries and applications that depend on it to compile against version 34 or later of the Android APIs. :app is currently compiled against android-33. Also, the maximum recommended compile SDK version for Android Gradle plugin 7.2.1 is 32. Recommended action: Update this project's version of the Android Gradle plugin to one that supports 34, then update this project to use compileSdkVerion of at least 34. Note that updating a library or application's compileSdkVersion (which allows newer APIs to be used) can be done separately from updating targetSdkVersion (which opts the app in to new runtime behavior) and minSdkVersion (which determines which devices the app can be installed on). 6. Dependency 'androidx.activity:activity:1.8.0' requires libraries and applications that depend on it to compile against version 34 or later of the Android APIs. :app is currently compiled against android-33. Also, the maximum recommended compile SDK version for Android Gradle plugin 7.2.1 is 32. Recommended action: Update this project's version of the Android Gradle plugin to one that supports 34, then update this project to use compileSdkVerion of at least 34. Note that updating a library or application's compileSdkVersion (which allows newer APIs to be used) can be done separately from updating targetSdkVersion (which opts the app in to new runtime behavior) and minSdkVersion (which determines which devices the app can be installed on). 7. Dependency 'androidx.lifecycle:lifecycle-runtime-ktx:2.7.0' requires libraries and applications that depend on it to compile against version 34 or later of the Android APIs. :app is currently compiled against android-33. Also, the maximum recommended compile SDK version for Android Gradle plugin 7.2.1 is 32. Recommended action: Update this project's version of the Android Gradle plugin to one that supports 34, then update this project to use compileSdkVerion of at least 34. Note that updating a library or application's compileSdkVersion (which allows newer APIs to be used) can be done separately from updating targetSdkVersion (which opts the app in to new runtime behavior) and minSdkVersion (which determines which devices the app can be installed on). 8. Dependency 'androidx.lifecycle:lifecycle-livedata-core:2.7.0' requires libraries and applications that depend on it to compile against version 34 or later of the Android APIs. :app is currently compiled against android-33. Also, the maximum recommended compile SDK version for Android Gradle plugin 7.2.1 is 32. Recommended action: Update this project's version of the Android Gradle plugin to one that supports 34, then update this project to use compileSdkVerion of at least 34. Note that updating a library or application's compileSdkVersion (which allows newer APIs to be used) can be done separately from updating targetSdkVersion (which opts the app in to new runtime behavior) and minSdkVersion (which determines which devices the app can be installed on). 9. Dependency 'androidx.lifecycle:lifecycle-process:2.7.0' requires libraries and applications that depend on it to compile against version 34 or later of the Android APIs. :app is currently compiled against android-33. Also, the maximum recommended compile SDK version for Android Gradle plugin 7.2.1 is 32. Recommended action: Update this project's version of the Android Gradle plugin to one that supports 34, then update this project to use compileSdkVerion of at least 34. Note that updating a library or application's compileSdkVersion (which allows newer APIs to be used) can be done separately from updating targetSdkVersion (which opts the app in to new runtime behavior) and minSdkVersion (which determines which devices the app can be installed on). 10. Dependency 'androidx.lifecycle:lifecycle-livedata-core-ktx:2.7.0' requires libraries and applications that depend on it to compile against version 34 or later of the Android APIs. :app is currently compiled against android-33. Also, the maximum recommended compile SDK version for Android Gradle plugin 7.2.1 is 32. Recommended action: Update this project's version of the Android Gradle plugin to one that supports 34, then update this project to use compileSdkVerion of at least 34. Note that updating a library or application's compileSdkVersion (which allows newer APIs to be used) can be done separately from updating targetSdkVersion (which opts the app in to new runtime behavior) and minSdkVersion (which determines which devices the app can be installed on). 11. Dependency 'androidx.lifecycle:lifecycle-livedata:2.7.0' requires libraries and applications that depend on it to compile against version 34 or later of the Android APIs. :app is currently compiled against android-33. Also, the maximum recommended compile SDK version for Android Gradle plugin 7.2.1 is 32. Recommended action: Update this project's version of the Android Gradle plugin to one that supports 34, then update this project to use compileSdkVerion of at least 34. Note that updating a library or application's compileSdkVersion (which allows newer APIs to be used) can be done separately from updating targetSdkVersion (which opts the app in to new runtime behavior) and minSdkVersion (which determines which devices the app can be installed on). 12. Dependency 'androidx.lifecycle:lifecycle-viewmodel:2.7.0' requires libraries and applications that depend on it to compile against version 34 or later of the Android APIs. :app is currently compiled against android-33. Also, the maximum recommended compile SDK version for Android Gradle plugin 7.2.1 is 32. Recommended action: Update this project's version of the Android Gradle plugin to one that supports 34, then update this project to use compileSdkVerion of at least 34. Note that updating a library or application's compileSdkVersion (which allows newer APIs to be used) can be done separately from updating targetSdkVersion (which opts the app in to new runtime behavior) and minSdkVersion (which determines which devices the app can be installed on). 13. Dependency 'androidx.lifecycle:lifecycle-viewmodel-savedstate:2.7.0' requires libraries and applications that depend on it to compile against version 34 or later of the Android APIs. :app is currently compiled against android-33. Also, the maximum recommended compile SDK version for Android Gradle plugin 7.2.1 is 32. Recommended action: Update this project's version of the Android Gradle plugin to one that supports 34, then update this project to use compileSdkVerion of at least 34. Note that updating a library or application's compileSdkVersion (which allows newer APIs to be used) can be done separately from updating targetSdkVersion (which opts the app in to new runtime behavior) and minSdkVersion (which determines which devices the app can be installed on). 14. Dependency 'androidx.lifecycle:lifecycle-runtime:2.7.0' requires libraries and applications that depend on it to compile against version 34 or later of the Android APIs. :app is currently compiled against android-33. Also, the maximum recommended compile SDK version for Android Gradle plugin 7.2.1 is 32. Recommended action: Update this project's version of the Android Gradle plugin to one that supports 34, then update this project to use compileSdkVerion of at least 34. Note that updating a library or application's compileSdkVersion (which allows newer APIs to be used) can be done separately from updating targetSdkVersion (which opts the app in to new runtime behavior) and minSdkVersion (which determines which devices the app can be installed on). 15. Dependency 'androidx.lifecycle:lifecycle-viewmodel-ktx:2.7.0' requires libraries and applications that depend on it to compile against version 34 or later of the Android APIs. :app is currently compiled against android-33. Also, the maximum recommended compile SDK version for Android Gradle plugin 7.2.1 is 32. Recommended action: Update this project's version of the Android Gradle plugin to one that supports 34, then update this project to use compileSdkVerion of at least 34. Note that updating a library or application's compileSdkVersion (which allows newer APIs to be used) can be done separately from updating targetSdkVersion (which opts the app in to new runtime behavior) and minSdkVersion (which determines which devices the app can be installed on). 16. Dependency 'androidx.lifecycle:lifecycle-livedata-ktx:2.7.0' requires libraries and applications that depend on it to compile against version 34 or later of the Android APIs. :app is currently compiled against android-33. Also, the maximum recommended compile SDK version for Android Gradle plugin 7.2.1 is 32. Recommended action: Update this project's version of the Android Gradle plugin to one that supports 34, then update this project to use compileSdkVerion of at least 34. Note that updating a library or application's compileSdkVersion (which allows newer APIs to be used) can be done separately from updating targetSdkVersion (which opts the app in to new runtime behavior) and minSdkVersion (which determines which devices the app can be installed on). |
33->34 변경
| android { compileSdk 34 |
구형 핸드폰에서도 동작하도록 낮은 버젼으로 빌드하니, 여기저기서 난리남...
| Failed to open file /code_cache/.overlay/base.apk/assets/dexopt/baseline.prof': No such file or directory |
<uses-permission android:name="android.permission.INTERNET"/>
| 1476-1476/cohttp://m.example.ap E/BufferQueueProducer: Unable to open libpenguin.so: dlopen failed: library "libpenguin.so" not found. |
Samsung Galaxy문제라고함. 무시하세요.
| Cannot resolve symbol 'R' |
package com.example.xxx; 추가
D:\test\Andriod\test1\app\src\main\java\com\example\wi_fi_ap\MainActivity.java
| package com.example.wi_fi_ap; // MainActivity.java 파일 내의 코드 import android.Manifest; import android.content.Context; ... import java.util.ArrayList; import java.util.List; public class MainActivity extends AppCompatActivity { private static final int PERMISSION_REQUEST_CODE = 123; private WifiManager wifiManager; private final List<String> wifiList = new ArrayList<>(); private ArrayAdapter<String> adapter; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); } @Override public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) { super.onRequestPermissionsResult(requestCode, permissions, grantResults); if (requestCode == PERMISSION_REQUEST_CODE) { if (grantResults.length > 0 && grantResults[0] == PackageManager.PERMISSION_GRANTED) { scanWifi(); } } } } |
D:\test\Andriod\ test1\app\src\main\res\xml\activity_main.xml
| <?xml version="1.0" encoding="utf-8"?> <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent" android:layout_height="match_parent" tools:context=".MainActivity"> <ListView android:id="@+id/wifi_list" android:layout_width="match_parent" android:layout_height="match_parent" /> </RelativeLayout> |
| Could not identify launch activity: Default Activity not found Error while Launching activity Failed to launch an application on all devices |
| <?xml version="1.0" encoding="utf-8"?> <manifest xmlns:android="http://schemas.android.com/apk/res/android" xmlns:tools="http://schemas.android.com/tools" package="com.example.wi_fi_ap" tools:ignore="CoarseFineLocation"> <uses-permission android:name="android.permission.ACCESS_WIFI_STATE" /> <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" /> <application android:allowBackup="true" android:dataExtractionRules="@xml/data_extraction_rules" android:fullBackupContent="@xml/backup_rules" android:icon="@mipmap/ic_launcher" android:label="@string/app_name" android:roundIcon="@mipmap/ic_launcher_round" android:supportsRtl="true" android:theme="@style/Theme.WiFi_AP" tools:targetApi="31" > <activity android:name=".MainActivity" android:exported="true" android:label="@string/app_name"> <intent-filter> <action android:name="android.intent.action.MAIN" /> <category android:name="android.intent.category.LAUNCHER" /> </intent-filter> </activity> </application> </manifest> |
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