Android-java.lang.classcastexception Android.app.application无法强制转换

我是一个Android新手，我正在构建一个关于教程的Android应用程序，我想在其中包含游戏功能，我已经有了游戏的源代码，我已经将所有类导入到我的项目中，但是当我尝试运行应用程序时，我遇到了一个错误，它说“android.app.application java.lang.ClassCastException无法转换为com.wglxy.example.dash1.ChuckApplication”，我假设这是因为我喜欢两个名为HomeActivity.java（Main）和ChuckApplication.java（second）的活动，它们具有不同的扩展（DashboardActivity&application）我真的不知道如何解决这个问题，我已经尝试过了

将游戏应用程序设置为库（不工作）

合并活动（不工作）

修改意向过滤器>类别（不工作）

但是我的项目没有任何效果

SplashActivity.java：

    import java.io.IOException;
    import java.util.List;
    
    import android.app.Activity;
    import android.content.Intent;
    import android.content.SharedPreferences;
    import android.database.SQLException;
    import android.os.Bundle;
    import android.view.View;
    import android.view.View.OnClickListener;
    import android.widget.Button;
    
    import com.tmm.android.chuck.db.DBHelper;
    import com.tmm.android.chuck.quiz.Constants;
    import com.tmm.android.chuck.quiz.GamePlay;
    import com.tmm.android.chuck.quiz.Question;
    
    public class SplashActivity extends Activity implements OnClickListener{
    
        
        @Override
        public void onCreate(Bundle savedInstanceState) {
            super.onCreate(savedInstanceState);
            setContentView(R.layout.welcome);
    
            //////////////////////////////////////////////////////////////////////
            //////// GAME MENU  /////////////////////////////////////////////////
            Button playBtn = (Button) findViewById(R.id.playBtn);
            playBtn.setOnClickListener(this);
            Button settingsBtn = (Button) findViewById(R.id.settingsBtn);
            settingsBtn.setOnClickListener(this);
            Button rulesBtn = (Button) findViewById(R.id.rulesBtn);
            rulesBtn.setOnClickListener(this);
            Button exitBtn = (Button) findViewById(R.id.exitBtn);
            exitBtn.setOnClickListener(this);
        }
    
    
        /**
         * Listener for game menu
         */
        @Override
        public void onClick(View v) {
            Intent i;
            
            switch (v.getId()){
            case R.id.playBtn :
                //once logged in, load the main page
                //Log.d("LOGIN", "User has started the game");
                
                //Get Question set //
                List<Question> questions = getQuestionSetFromDb();
    
                //Initialise Game with retrieved question set ///
                GamePlay c = new GamePlay();
                c.setQuestions(questions);
                c.setNumRounds(getNumQuestions());
                ((ChuckApplication)getApplication()).setCurrentGame(c);  
    
                //Start Game Now.. //
                i = new Intent(this, QuestionActivity.class);
                startActivityForResult(i, Constants.PLAYBUTTON);
                break;
                
            case R.id.rulesBtn :
                i = new Intent(this, RulesActivity.class);
                startActivityForResult(i, Constants.RULESBUTTON);
                break;
                
            case R.id.settingsBtn :
                i = new Intent(this, SettingsActivity.class);
                startActivityForResult(i, Constants.SETTINGSBUTTON);
                break;
                
            case R.id.exitBtn :
                finish();
                break;
            }
    
        }
    
    
        /**
         * Method that retrieves a random set of questions from
         * the database for the given difficulty
         * @return
         * @throws Error
         */
        private List<Question> getQuestionSetFromDb() throws Error {
            int diff = getDifficultySettings();
            int numQuestions = getNumQuestions();
            DBHelper myDbHelper = new DBHelper(this);
            try {
                myDbHelper.createDataBase();
            } catch (IOException ioe) {
                throw new Error("Unable to create database");
            }
            try {
                myDbHelper.openDataBase();
            }catch(SQLException sqle){
                throw sqle;
            }
            List<Question> questions = myDbHelper.getQuestionSet(diff, numQuestions);
            myDbHelper.close();
            return questions;
        }
    
    
        /**
         * Method to return the difficulty settings
         * @return
         */
        private int getDifficultySettings() {
            SharedPreferences settings = getSharedPreferences(Constants.SETTINGS, 0);
            int diff = settings.getInt(Constants.DIFFICULTY, Constants.MEDIUM);
            return diff;
        }
    
        /**
         * Method to return the number of questions for the game
         * @return
         */
        private int getNumQuestions() {
            SharedPreferences settings = getSharedPreferences(Constants.SETTINGS, 0);
            int numRounds = settings.getInt(Constants.NUM_ROUNDS, 20);
            return numRounds;
        }
    
    }

这是我的笑话：

/**
 *
 */
package com.wglxy.example.dash1;

import android.app.Application;

/**
 * @author rob
 *
 */
public class ChuckApplication extends Application
{
    private GamePlay currentGame;

    /**
     * @param currentGame
     *            the currentGame to set
     */
    public void setCurrentGame(GamePlay currentGame)
    {
        this.currentGame = currentGame;
    }

    /**
     * @return the currentGame
     */
    public GamePlay getCurrentGame()
    {
        return currentGame;
    }
}

这是我的manifest.xml

11

这是我的日志：

07 - 10 11: 38: 01.946: E / AndroidRuntime(7548): FATAL EXCEPTION: main
07 - 10 11: 38: 01.946: E / AndroidRuntime(7548): java.lang.ClassCastException: android.app.Application cannot be cast to com.wglxy.example.dash1.ChuckApplication
07 - 10 11: 38: 01.946: E / AndroidRuntime(7548): at com.wglxy.example.dash1.SplashActivity.onClick(SplashActivity.java: 57)
07 - 10 11: 38: 01.946: E / AndroidRuntime(7548): at android.view.View.performClick(View.java: 4202)
07 - 10 11: 38: 01.946: E / AndroidRuntime(7548): at android.view.View$PerformClick.run(View.java: 17340)
07 - 10 11: 38: 01.946: E / AndroidRuntime(7548): at android.os.Handler.handleCallback(Handler.java: 725)
07 - 10 11: 38: 01.946: E / AndroidRuntime(7548): at android.os.Handler.dispatchMessage(Handler.java: 92)
07 - 10 11: 38: 01.946: E / AndroidRuntime(7548): at android.os.Looper.loop(Looper.java: 137)
07 - 10 11: 38: 01.946: E / AndroidRuntime(7548): at android.app.ActivityThread.main(ActivityThread.java: 5039)
07 - 10 11: 38: 01.946: E / AndroidRuntime(7548): at java.lang.reflect.Method.invokeNative(Native Method)
07 - 10 11: 38: 01.946: E / AndroidRuntime(7548): at java.lang.reflect.Method.invoke(Method.java: 511)
07 - 10 11: 38: 01.946: E / AndroidRuntime(7548): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java: 793)
07 - 10 11: 38: 01.946: E / AndroidRuntime(7548): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java: 560)
07 - 10 11: 38: 01.946: E / AndroidRuntime(7548): at dalvik.system.NativeStart.main(Native Method)

---

有人知道如何解决我的问题吗？

您可以将子类对象强制转换为父类对象，但不能执行相反的操作。您试图将应用程序强制转换为父类对象，这是不合法的。

问：您在清单中的何处指定了应用程序类？例如：

<application
    android:icon="@drawable/icon"
    android:label="@string/app_name"
    android:theme="@style/Theme.D1" 
    android:name="com.wglxy.example.dash1.ChuckApplication" >
    ...

---

SplashActivity行中有什么内容。java:57请在出现错误的地方发布代码的相关部分。@SriHarshaChilakapati抱歉，我已经添加了SplashActivity.java@MichaelShrestha这是第57行-
code
GamePlay c=new GamePlay（）；
code
<application
    android:icon="@drawable/icon"
    android:label="@string/app_name"
    android:theme="@style/Theme.D1" 
    android:name="com.wglxy.example.dash1.ChuckApplication" >
    ...