java.lang.ClassCastException:android.app.ContextImpl [英] java.lang.ClassCastException: android.app.ContextImpl

问题描述

我正在尝试将ScoreNinja整合到我的小游戏中: http://scoreninja.appspot.com/

I am trying to incorporate ScoreNinja into my little game: http://scoreninja.appspot.com/

但是，每次都会抛出运行时异常:

However, a runtime exception is thrown every time:

05-24 23:22:59.888: ERROR/AndroidRuntime(21237): FATAL EXCEPTION: main
05-24 23:22:59.888: ERROR/AndroidRuntime(21237): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.shaq.pushcounter/com.shaq.pushcounter.ChickenPushupTimer}: java.lang.ClassCastException: android.app.ContextImpl
05-24 23:22:59.888: ERROR/AndroidRuntime(21237):     at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1651)
05-24 23:22:59.888: ERROR/AndroidRuntime(21237):     at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1667)
05-24 23:22:59.888: ERROR/AndroidRuntime(21237):     at android.app.ActivityThread.access$1500(ActivityThread.java:117)
05-24 23:22:59.888: ERROR/AndroidRuntime(21237):     at android.app.ActivityThread$H.handleMessage(ActivityThread.java:935)
05-24 23:22:59.888: ERROR/AndroidRuntime(21237):     at android.os.Handler.dispatchMessage(Handler.java:99)
05-24 23:22:59.888: ERROR/AndroidRuntime(21237):     at android.os.Looper.loop(Looper.java:123)
05-24 23:22:59.888: ERROR/AndroidRuntime(21237):     at android.app.ActivityThread.main(ActivityThread.java:3687)
05-24 23:22:59.888: ERROR/AndroidRuntime(21237):     at java.lang.reflect.Method.invokeNative(Native Method)
05-24 23:22:59.888: ERROR/AndroidRuntime(21237):     at java.lang.reflect.Method.invoke(Method.java:507)
05-24 23:22:59.888: ERROR/AndroidRuntime(21237):     at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:842)
05-24 23:22:59.888: ERROR/AndroidRuntime(21237):     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:600)
05-24 23:22:59.888: ERROR/AndroidRuntime(21237):     at dalvik.system.NativeStart.main(Native Method)


05-24 23:22:59.888: ERROR/AndroidRuntime(21237): Caused by: java.lang.ClassCastException: android.app.ContextImpl
05-24 23:22:59.888: ERROR/AndroidRuntime(21237):     at com.scoreninja.adapter.ScoreNinjaAdapter.<init>(ScoreNinjaAdapter.java:85)
05-24 23:22:59.888: ERROR/AndroidRuntime(21237):     at com.shaq.pushcounter.ChickenPushupTimer.onCreate(ChickenPushupTimer.java:31)
05-24 23:22:59.888: ERROR/AndroidRuntime(21237):     at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1047)
05-24 23:22:59.888: ERROR/AndroidRuntime(21237):     at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1615)
05-24 23:22:59.888: ERROR/AndroidRuntime(21237):     ... 11 more

问题可能出在ChickenPushupTimer.java:31.

The problem is probably ChickenPushupTimer.java:31.

这是我的整个Java文件:

Here is my entire Java file:

public class ChickenPushupTimer extends Activity
{
    int count = 0;
    TextView timeLeft;
    TextView totalPushups;
    ImageButton button;
    SoundManager mSoundManager;
    Vibrator myVib;
    ScoreNinjaAdapter scoreNinjaAdapter;

    public void onCreate(Bundle savedInstanceState)
    {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.chickentimer);
        scoreNinjaAdapter = new ScoreNinjaAdapter(getBaseContext(), "cockpushups", "71A7AD115870BA0E05C13BE2B9D3F984");

        myVib = (Vibrator) this.getSystemService(VIBRATOR_SERVICE);
        mSoundManager = new SoundManager();
        mSoundManager.initSounds(getBaseContext());
        mSoundManager.addSound(1, R.raw.chicken);

        timeLeft = (TextView) findViewById(R.id.timeLeft);
        totalPushups = (TextView) findViewById(R.id.totalPushups);
        button = (ImageButton) findViewById(R.id.chickenbutton);

        countdownTimer();

        button.setOnClickListener(new View.OnClickListener()
        {

            public void onClick(View v)
            {
                myVib.vibrate(250);
                count++;
                totalPushups.setText("" + count);
                mSoundManager.playSound(1);
            }
        });
    }

    public boolean onCreateOptionsMenu(Menu menu) {
        MenuInflater inflater = getMenuInflater();
        inflater.inflate(R.menu.popupmenu, menu);
        return true;
    }

    public boolean onOptionsItemSelected(MenuItem item) {
        // Handle item selection
        switch (item.getItemId()) {
        case R.id.goback:
            /*Intent myIntent = new Intent(getBaseContext(), MainMenu.class);
            startActivity(myIntent);*/
            finish();
            return true;
     //   case R.id.help:
     //       showHelp();
     //       return true;
        default:
            return super.onOptionsItemSelected(item);
        }
    }

    public void countdownTimer()
    {
        new CountDownTimer(16000, 1000) {

             public void onTick(long millisUntilFinished) {
                 timeLeft.setText("" + millisUntilFinished / 1000);
             }

             public void onFinish() {
                 scoreNinjaAdapter.show(count);
                 finish();
             }
          }.start();
    }

    protected void onActivityResult(int requestCode, int resultCode, Intent data) 
    {
        super.onActivityResult(requestCode, resultCode, data);
        scoreNinjaAdapter.onActivityResult(requestCode, resultCode, data);
    }
}

这是第31行:

scoreNinjaAdapter = new ScoreNinjaAdapter(getBaseContext(), "cockpushups", "71A7AD115870BA0E05C13BE2B9D3F984");

我使用的上下文可能有问题.任何帮助将不胜感激！

There may be something wrong with the context I am using. Any help would be GREATLY appreciated!!

推荐答案

如果您查看ScoreNinjaAdapter的代码

If you look at the code for ScoreNinjaAdapter here, it shows that it casts the context to Activity. Try using this instead of getBaseContext, since you're calling from an activity.

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