使用Android插件时,Unity3D应用程序会崩溃



我正在遵循本教程以制作步骤计数器,并且它可以作为一个Android项目运行良好给我一个错误 class not found: exception我的团结代码如下:

void Start () 
{
    #if UNITY_ANDROID
    AndroidJNI.AttachCurrentThread();
    androidClass = new AndroidJavaClass("com.test.testapp.MainActivity");
    #endif
}
#if UNITY_ANDROID
public void checkMyIntOnJava(string message){
    if (message == "READY") {
        int myInt = androidClass.CallStatic<int>("getMyInt");
        guiText.text = "My Int: " + myInt;
    }
}

和我的Android代码如下:

public class MainActivity extends UnityPlayerActivity
implements OnDataPointListener, GoogleApiClient.ConnectionCallbacks,
    GoogleApiClient.OnConnectionFailedListener
{
public static void callbackToUnityMethod(int num, String gameObject,String methodName){
    _myInt = num;
    Log.e("GoogleFit", "in callbackToUnityMethod");
   UnityPlayer.UnitySendMessage(gameObject, methodName, "READY");
}
}

制作Android Jar后,我将其保存在Unity3D的插件文件夹中。我想念什么吗?

我的Android清单文件如下:

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
  package="com.xxx.testapp" android:versionCode="1" 
  android:versionName="1.0">
<uses-sdk android:minSdkVersion="9" />
<application android:label="@string/app_name">
    <activity android:name="com.xxx.testapp.MainActivity"
              android:label="@string/app_name">
        <intent-filter>
            <action android:name="android.intent.action.MAIN" />
            <category android:name="android.intent.category.LAUNCHER" />
        </intent-filter>
    </activity>
    <activity android:name="com.xxx.testapp.UnityPlayerActivity"  
    android:configChanges="fontScale|keyboard|keyboardHidden|locale|mnc|mcc|navigation|orientation|screenLayout|screenSize|smallestScreenSize|uiMode|touchscreen" 
    android:label="@string/app_name" android:launchMode="singleTask" android:theme="@android:style/Theme.Translucent.NoTitleBar.Fullscreen" />
</application>
</manifest>

这是我尝试的两件事。

首先更改您的AndroidManifest.xml中的以下行,以便包装范围匹配android:name属性。

<activity android:name="com.xxx.testapp.MainActivity"
         android:label="@string/app_name">

to

<activity android:name="com.test.testapp.MainActivity"
         android:label="@string/app_name">

另一个潜在的问题是,您的班级没有被编译,因为它缺少父母类和接口中抽象方法的具体实现。为了解决将这些实现添加到MainActivity

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
}
@Override
public void onConnected(Bundle bundle) {
}
@Override
public void onConnectionSuspended(int i) {
}
@Override
public void onConnectionFailed(ConnectionResult connectionResult) {
}
@Override
public void onDataPoint(DataPoint dataPoint) {
}

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