我在Android上开发了两个应用程序：应用程序A，当按下按钮时，应用程序A应打开应用程序B，应用程序B应向应用程序A返回值，如“OK”。为此，应用A使用操作“com.intent.test”发送Intent，但当它接收到Intent时，应用B崩溃并显示以下错误消息：
Java.Lang.RuntimeException:'无法示例化活动ComponentInfo{com.example.newdemo/com.example.newdemo.MainActivity}：java.lang.ClassNotFoundException:在以下路径中未找到类“com.example.demointent.MainActivity”：DexPathList[[zip file“/data/app/com.example. demoint-SsbNhZc7TrVyMjaIbZDfVw ==/base.apk”]，nativeLibraryDirectories=[/data/app/com.example. demoint-SsbNhZc7TrVyMjaIbZDfVw ==/lib/arm64，/data/app/com.example. demoint-SsbNhZc7TrVyMjaIbZDfVw ==/base.apk！/lib/arm64-v8a，/system/lib64，/system/product/lib64]]'
AndroidManifest.xml应用程序B：

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android" android:versionCode="1" android:versionName="1.0" package="com.example.demointent" android:installLocation="auto">
    <uses-sdk android:minSdkVersion="21" android:targetSdkVersion="33" />
    <application android:allowBackup="true" android:icon="@mipmap/ic_launcher" android:label="@string/app_name" android:theme="@style/AppTheme">
        <activity android:name=".MainActivity" android:label="@string/app_name" android:exported="true" android:enabled="true">
            <intent-filter>
                <action android:name="com.intent.test" />
                <action android:name="android.intent.action.MAIN" />
                <category android:name="android.intent.category.DEFAULT" />
            </intent-filter>
        </activity>
    </application>
    <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
</manifest>

字符串
MainActivity应用程序B：

namespace NewDemo
{
    [Activity(Label = "@string/app_name", Theme = "@style/AppTheme", MainLauncher = true)]
    public class MainActivity : AppCompatActivity
    {
        protected override void OnCreate(Bundle savedInstanceState)
        {
            try
            {
                base.OnCreate(savedInstanceState);
                Xamarin.Essentials.Platform.Init(this, savedInstanceState);
                SetContentView(Resource.Layout.activity_main);

                Intent receivedIntent = Intent;
                if (receivedIntent == null) return;

                var dataReceived = receivedIntent.GetStringExtra("key");
                var action = receivedIntent.Action;

                var intent = new Intent();
                switch (action)
                {
                    case "com.intent.test":
                        intent.PutExtra("result", "OK");
                        break;
                }

                SetResult(Result.Ok, intent);
                Toast.MakeText(this, "My app is started. Data: " + dataReceived, ToastLength.Short)?.Show();
                Finish();
            }
            catch (Exception ex)
            {
                Toast.MakeText(this, "error: " + ex.Message, ToastLength.Short)?.Show();
            }

        }
    }
}

型
MainActivity应用程序A：

protected override void OnCreate(Bundle savedInstanceState)
        {
            base.OnCreate(savedInstanceState);
            Xamarin.Essentials.Platform.Init(this, savedInstanceState);
            SetContentView(Resource.Layout.activity_main);
            var btnstartWithAction = FindViewById<TextView>(Resource.Id.btnstartWithAction);
            if (btnstartWithAction != null)
            {
                btnstartWithAction.Click += (sender, e) =>
                {
                    var intent = new Intent();
                    var action = "com.intent.test";
                    intent.SetAction(action);
                    intent.PutExtra("key", "keytest");

                    StartActivityForResult(Intent.CreateChooser(intent, "App"), 3);
                };
            }
        }

型
当我将Intent与操作一起使用时，会出现此错误。当应用程序A用包名调用应用程序B时，我没有问题。像这样：

Intent launchIntent = ApplicationContext.PackageManager.GetLaunchIntentForPackage("com.example.newdemo");
                    launchIntent?.SetFlags(0);
                    launchIntent?.SetAction("com.intent.test");
                    launchIntent?.PutExtra("key", "12345");
                    StartActivityForResult(Intent.CreateChooser(launchIntent, ""), 12);

型
我已经清理和建立我的项目几次。我使用Xamarin和Visual Studio 2022编写C#代码。有人知道发生了什么吗- 谢谢-谢谢