Question

切换活动时，我似乎遇到了崩溃问题。我按照关于切换活动的标准教程，但他们目前正在导致应用程序崩溃。基本的想法是这样的。我有一种感觉，因为我正在运行一个异步线程，它引起了一个问题，即使它完全被卸载到另一个对象。有一个对象管理线程：

public class threads 
{
public static threads Threads = new threads();

readThread mainReadThread;
writeThread mainWriteThread;

void startThreads()
{
    if (mainReadThread == null && mainWriteThread == null)
    {
        mainWriteThread = new writeThread();
        mainReadThread = new readThread();
        mainReadThread.execute(0);
        mainWriteThread.execute(0);
    }
}
void pauseThreads()
{
    if (mainReadThread != null && mainWriteThread != null)
    {
        //Pause thread
    }

}

class writeThread extends AsyncTask<Object, Object, Object>
{

    //do stuff...
}

class readThread extends AsyncTask<Object, Object, Object>
{
   //do stuff    
}

}

为了切换活动，我执行以下操作

         getPlaytest.setOnClickListener(new View.OnClickListener() {

        public void onClick(View v) {
            //dataHolder.sendFlags.add(dataHolder.flags.playTestStarted);
            Intent myIntent = new Intent(getApplicationContext(), currentPlaytest.class);
            startActivity(myIntent);
        }
    });

新活动看起来像这样

    public class currentPlaytest extends Activity {

/**
 * Called when the activity is first created.
 */
@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.playtest);
    dataHolder.application = getApplicationContext();
    threads.Threads.startThreads();
    // ToDo add your GUI initialization code here        
}
}

dubugger目前没有告诉我为什么事情会崩溃。该应用程序只是崩溃，调试器断开连接。我正在使用NetBeans进行开发。据我所知，线程应该不是问题。有什么建议吗？

页面的xml是

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
      package="apps.zombieYoga.statistics"
      android:versionCode="1"
      android:versionName="1.0">
    <application android:label="@string/app_name" android:icon="@drawable/ic_launcher">
        <activity android:name="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="currentPlaytest"
                  android:label="@string/app_name">
            <intent-filter>
                <action android:name="android.intent.action.playtest" />
                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
    </application>
    <uses-permission android:name="android.permission.INTERNET"></uses-permission>
</manifest>

playtest XML的代码是

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android=".NewActivityClassName"
    android:orientation="vertical"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    >
<Button
    android:id="@+id/dataButton"
    android:layout_width="fill_parent"
    android:layout_height="wrap_content"
    android:text="List Sessions"
    />        
</LinearLayout>

切换活动崩溃应用程序

0 个答案: