第一次，我遇到了两次错误，
/Users/MYSoft/project/separate/ecfile/android/app/src/main/AndroidManifest.xml Error:
Apps targeting Android 12 and higher are required to specify an explicit value for `android:exported` when the corresponding component has an intent filter defined. See https://developer.android.com/guide/topics/manifest/activity-element#exported for details.
/Users/MYSoft/project/separate/ecfile/android/app/src/main/AndroidManifest.xml Error:
Apps targeting Android 12 and higher are required to specify an explicit value for `android:exported` when the corresponding component has an intent filter defined. See https://developer.android.com/guide/topics/manifest/activity-element#exported for details.
FAILURE: Build failed with an exception.
* What went wrong:
Execution failed for task ':app:processReleaseMainManifest'.
> Manifest merger failed with multiple errors, see logs
* 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 8s
Running Gradle task 'bundleRelease'...
Running Gradle task 'bundleRelease'... Done 11.2s
Gradle task bundleRelease failed with exit code 1
我在活动标签中添加 android:exported="true" 。现在我在同一个文件上遇到相同的错误，但现在我收到一个错误。
/Users/MYSoft/project/separate/ecfile/android/app/src/main/AndroidManifest.xml Error:
Apps targeting Android 12 and higher are required to specify an explicit value for `android:exported` when the corresponding component has an intent filter defined. See https://developer.android.com/guide/topics/manifest/activity-element#exported for details.
FAILURE: Build failed with an exception.
* What went wrong:
Execution failed for task ':app:processReleaseMainManifest'.
> Manifest merger failed : Apps targeting Android 12 and higher are required to specify an explicit value for `android:exported` when the corresponding component has an intent filter defined. See https://developer.android.com/guide/topics/manifest/activity-element#exported for details.
* 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 8s
Running Gradle task 'bundleRelease'...
Running Gradle task 'bundleRelease'... Done 11.3s
Gradle task bundleRelease failed with exit code 1
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
package="com.ecsoft.ecfile">
<!-- io.flutter.app.FlutterApplication is an android.app.Application that
calls FlutterMain.startInitialization(this); in its onCreate method.
In most cases you can leave this as-is, but you if you want to provide
additional functionality it is fine to subclass or reimplement
FlutterApplication and put your custom class here. -->
<uses-feature
android:name="android.hardware.camera"
android:required="false" />
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.CAMERA" />
<uses-permission android:name="android.permission.READ_CONTACTS" />
<uses-permission android:name="android.permission.WRITE_CONTACTS" />
<!--android:name="io.flutter.app.FlutterApplication"-->
<!--android:name=".MainActivity"-->
<application
tools:replace="icon, label"
android:usesCleartextTraffic="true"
android:name= ".Application"
android:label="Ecfile"
android:icon="@drawable/ecfile_logo">
<activity
android:name=".MainActivity"
android:exported="true"
android:launchMode="singleTop"
android:theme="@style/LaunchTheme"
tools:node="merge"
android:configChanges="orientation|keyboardHidden|keyboard|screenSize|smallestScreenSize|locale|layoutDirection|fontScale|screenLayout|density|uiMode"
android:hardwareAccelerated="true"
android:windowSoftInputMode="adjustResize">
<!-- Specifies an Android theme to apply to this Activity as soon as
the Android process has started. This theme is visible to the user
while the Flutter UI initializes. After that, this theme continues
to determine the Window background behind the Flutter UI. -->
<meta-data
android:name="io.flutter.embedding.android.NormalTheme"
android:resource="@style/NormalTheme"
/>
<!-- Displays an Android View that continues showing the launch screen
Drawable until Flutter paints its first frame, then this splash
screen fades out. A splash screen is useful to avoid any visual
gap between the end of Android's launch screen and the painting of
Flutter's first frame. -->
<meta-data
android:name="io.flutter.embedding.android.SplashScreenDrawable"
android:resource="@drawable/launch_background"
/>
<!--<meta-data
android:name="com.google.firebase.messaging.default_notification_channel_id"
android:value="@string/default_notification_channel_id"/>-->
<intent-filter>
<action android:name="FLUTTER_NOTIFICATION_CLICK" />
<category android:name="android.intent.category.DEFAULT" />
</intent-filter>
<intent-filter>
<action android:name="android.intent.action.MAIN"/>
<category android:name="android.intent.category.LAUNCHER"/>
</intent-filter>
</activity>
<provider
android:name="vn.hunghd.flutterdownloader.DownloadedFileProvider"
android:authorities="${applicationId}.flutter_downloader.provider"
android:grantUriPermissions="true"
android:exported="false"
tools:node="merge"
tools:overrideLibrary="com.squareup.picasso.picasso">
<meta-data
android:name="android.support.FILE_PROVIDER_PATHS"
android:resource="@xml/provider_paths"/>
</provider>
<!-- Don't delete the meta-data below.
This is used by the Flutter tool to generate GeneratedPluginRegistrant.java -->
<meta-data
android:name="flutterEmbedding"
android:value="2" />
</application>
</manifest>
此代码在 targetSdkVersion 31 中运行。由于应用程序发布，我也想 targetSdkVersion 31 。
您的清单似乎是正确的，但如果您的应用程序包含包含旧版本
AndroidManifest.xmlandroid:exported第一个解决方案（可能也是建议的解决方案，除非您有特定原因避免升级）是将所有软件包和库升级到包含更新的
AndroidManifest.xml如果特定软件包无法升级（可能是因为不再支持），您可以尝试另一种方法：
设置较低的
targetSdkVersion应用程序编译后，您可以在那里找到“合并”
AndroidManifest.xmlbuild/app/intermediates/merged_manifests/debug/AndroidManifest.xml查找不包含
android:exportedAndroidManifest.xmlandroid:exported再次编译所需的
targetSdkVersion