Manifest merger failed : android:exported needs to be explicitly specified for <activity>. Apps targeting Android 12 and higher are required to specify an explicit value for `android:exported`

将targetsdk升级到34后报错 ``` Execution failed for task ':app:processHuaweiDebugMainManifest'. > Manifest merger failed : android:exported needs to be explicitly specified for <activity>. 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. ``` 根据错误提示，targetSdkVersion大于等于SDK 31(也就是Android 12)时，如果有的Activity配置了Intent-filter，必须也同时配置exported属性，否则编译失败。 有2种解决方案 方案1:降低targetSdkVersion为30 根据现在的要求，targetSdkVersion 必须>=30，该方案不推荐。 方案2:将Manifest中有配置Intent-filter的Activity加上android:exported属性 例如： ``` <activity android:name=".MainActivity" android:exported="true" android:label="@string/app_name" android:launchMode="standard" android:screenOrientation="portrait"> <intent-filter> <action android:name="android.intent.action.MAIN" /> <category android:name="android.intent.category.LAUNCHER" /> </intent-filter> </activity> ```