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我有一个在Android 5.0或更高版本上正常工作的项目。Xamarin Android Android java.lang.ClassNotFoundException仅适用于Android 4.3（api 17）
但我试图在Android 4.3上运行它，它在开始第一个活动之前崩溃。
完整的错误：
05-18 23:44:57.309 E/AndroidRuntime(27114): Caused by: java.lang.ClassNotFoundException: Didn't find class "mapsproject.ApplicationStartup" on path: /data/app/MapsProject.MapsProject-1.apk
，他没有找到类是一个应用程序。我在我的项目上使用Android支持库，有一个SupportApplication或类似的东西？
下面是我的清单：
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android" package="MapsProject.MapsProject" android:versionCode="2" android:versionName="1.0.1" android:installLocation="auto">
<uses-sdk android:minSdkVersion="17" />
<uses-feature android:glEsVersion="0x00020000" android:required="true" />
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
<uses-permission android:name="com.google.android.providers.gsf.permission.READ_GSERVICES" />
<uses-permission android:name="com.xamarin.docs.android.mapsproject.permission.MAPS_RECEIVE" />
<permission android:name="com.xamarin.docs.android.mapsproject.permission.MAPS_RECEIVE" android:protectionLevel="signature" />
<!--Location permissions-->
<uses-permission android:name="android.permission.ACCESS_MOCK_LOCATION" />
<!--Location permissions end-->
<application android:label="MobileMapsProject" android:name="mapsproject.ApplicationStartup" android:allowBackup="true" android:debuggable="true">
<meta-data android:name="com.google.android.geo.API_KEY" android:value="AIzaSyATpV7pH8ti6rJrnN01H4dbVeaMX2vJdvE" />
<meta-data android:name="com.google.android.gms.version" android:value="@integer/google_play_services_version" />
<!--Facebook SDK-->
<meta-data android:name="com.facebook.sdk.ApplicationId" android:value="@string/facebook_app_id"></meta-data>
<activity android:name="com.facebook.FacebookActivity" android:configChanges="keyboard|keyboardHidden|screenLayout|screenSize|orientation" android:theme="@android:style/Theme.Translucent.NoTitleBar" android:label="@string/ApplicationName" android:screenOrientation="portrait" />
<activity android:icon="@drawable/icon" android:label="MapsProject" android:theme="@style/MobileMapsTheme" android:name="md53f4bea8a426a59bffa9695091cc3f865.MainActivity">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity android:theme="@style/MobileMapsTheme" android:name="md53f4bea8a426a59bffa9695091cc3f865.MainMapActivity" />
<activity android:configChanges="keyboardHidden|orientation|screenSize" android:name="com.facebook.ads.InterstitialAdActivity" />
<service android:name="md59f70a99687498e7ba187118950981d26.KeepAliveService" />
<provider android:name="mono.MonoRuntimeProvider" android:exported="false" android:initOrder="2147483647" android:authorities="MapsProject.MapsProject.mono.MonoRuntimeProvider.__mono_init__" />
<receiver android:name="mono.android.Seppuku">
<intent-filter>
<action android:name="mono.android.intent.action.SEPPUKU" />
<category android:name="mono.android.intent.category.SEPPUKU.MapsProject.MapsProject" />
</intent-filter>
</receiver>
<activity android:name="com.facebook.FacebookActivity" android:configChanges="keyboard|keyboardHidden|screenLayout|screenSize|orientation" android:theme="@style/com_facebook_activity_theme" />
<activity android:name="com.facebook.CustomTabActivity" android:exported="true"></activity>
<activity android:name="com.facebook.CustomTabMainActivity" />
<activity android:name="com.facebook.FacebookActivity" android:configChanges="keyboard|keyboardHidden|screenLayout|screenSize|orientation" android:theme="@style/com_facebook_activity_theme" />
<activity android:name="com.facebook.CustomTabActivity" android:exported="true"></activity>
<activity android:name="com.facebook.CustomTabMainActivity" />
<!--Include the AdActivity and InAppPurchaseActivity configChanges and themes. -->
<activity android:name="com.google.android.gms.ads.AdActivity" android:configChanges="keyboard|keyboardHidden|orientation|screenLayout|uiMode|screenSize|smallestScreenSize" android:theme="@android:style/Theme.Translucent" />
<activity android:name="com.google.android.gms.ads.purchase.InAppPurchaseActivity" android:theme="@style/Theme.IAPTheme" />
<activity android:name="com.google.android.gms.common.api.GoogleApiActivity" android:theme="@android:style/Theme.Translucent.NoTitleBar" android:exported="false" />
<meta-data android:name="com.google.android.gms.version" android:value="@integer/google_play_services_version" />
</application>
</manifest>
而下面是我的课是抛出异常：
[Application(Name ="mapsproject.ApplicationStartup")]
public class ApplicationStartup : Application
{
public static ApplicationStartup Current { get; private set; }
public SqliteManager Manager { get; set; }
SQLiteConnection conn;
public ApplicationStartup(IntPtr handle, global::Android.Runtime.JniHandleOwnership transfer)
: base(handle, transfer) {
Current = this;
}
public override void OnCreate()
{
base.OnCreate();
var sqliteFilename = "MapsDB.db3";
string libraryPath = Environment.GetFolderPath(Environment.SpecialFolder.Personal);
var path = Path.Combine(libraryPath, sqliteFilename);
conn = new SQLiteConnection(path);
Manager = new SqliteManager(conn);
}
}
我试图在另一个线程一些技巧，但它并没有解决问题。
提前致谢！
编辑1：
添加了完整的apk文件。
什么是你的包装清单包含哪些内容？ – SushiHangover
打包Manifest是指Xamarin在运行代码时生成的完整清单？ –
是的，最终清单打包到apk中，你可以在几个地方找到它，比如：'obj/Debug/android/manifest/AndroidManifest.xml' – SushiHangover