我的列表活动无法打开

问题描述：

基本上，我的博爱活动列表活动不会从我的活动列表中打开。我不知道为什么，但如果你能帮助我，我确实有日志猫和代码。谢谢。我的列表活动无法打开

我的日志猫：

04-23 19:49:28.327: W/System.err(958): java.lang.ClassNotFoundException: com.xeecros.reptilekeeperBoidae 
04-23 19:49:28.327: W/System.err(958): at java.lang.Class.classForName(Native Method) 
04-23 19:49:28.366: W/System.err(958): at java.lang.Class.forName(Class.java:217) 
04-23 19:49:28.366: W/System.err(958): at java.lang.Class.forName(Class.java:172) 
04-23 19:49:28.366: W/System.err(958): at com.xeecros.reptilekeeper.Serpentes.onListItemClick(Serpentes.java:28) 
04-23 19:49:28.366: W/System.err(958): at android.app.ListActivity$2.onItemClick(ListActivity.java:319) 
04-23 19:49:28.366: W/System.err(958): at android.widget.AdapterView.performItemClick(AdapterView.java:298) 
04-23 19:49:28.366: W/System.err(958): at android.widget.AbsListView.performItemClick(AbsListView.java:1100) 
04-23 19:49:28.366: W/System.err(958): at android.widget.AbsListView$PerformClick.run(AbsListView.java:2749) 
04-23 19:49:28.376: W/System.err(958): at android.widget.AbsListView$1.run(AbsListView.java:3423) 
04-23 19:49:28.376: W/System.err(958): at android.os.Handler.handleCallback(Handler.java:725) 
04-23 19:49:28.376: W/System.err(958): at android.os.Handler.dispatchMessage(Handler.java:92) 
04-23 19:49:28.376: W/System.err(958): at android.os.Looper.loop(Looper.java:137) 
04-23 19:49:28.376: W/System.err(958): at android.app.ActivityThread.main(ActivityThread.java:5041) 
04-23 19:49:28.387: W/System.err(958): at java.lang.reflect.Method.invokeNative(Native Method) 
04-23 19:49:28.387: W/System.err(958): at java.lang.reflect.Method.invoke(Method.java:511) 
04-23 19:49:28.387: W/System.err(958): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:793) 
04-23 19:49:28.387: W/System.err(958): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:560) 
04-23 19:49:28.396: W/System.err(958): at dalvik.system.NativeStart.main(Native Method) 
04-23 19:49:28.396: W/System.err(958): Caused by: java.lang.NoClassDefFoundError: com/xeecros/reptilekeeperBoidae 
04-23 19:49:28.396: W/System.err(958): ... 18 more 
04-23 19:49:28.406: W/System.err(958): Caused by: java.lang.ClassNotFoundException: Didn't find class "com.xeecros.reptilekeeperBoidae" on path: /data/app/com.xeecros.reptilekeeper-1.apk 
04-23 19:49:28.406: W/System.err(958): at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:65) 
04-23 19:49:28.406: W/System.err(958): at java.lang.ClassLoader.loadClass(ClassLoader.java:501) 
04-23 19:49:28.406: W/System.err(958): at java.lang.ClassLoader.loadClass(ClassLoader.java:461) 
04-23 19:49:28.416: W/System.err(958): ... 18 more

我蟒科类：

/* 
* This class is a list to contain 
* all of the classes for the individual species. 
*/ 


package com.xeecros.reptilekeeper; 

import android.app.ListActivity; 
import android.content.Intent; 
import android.os.Bundle; 
import android.view.View; 
import android.widget.ArrayAdapter; 
import android.widget.ListView; 

public class Boidae extends ListActivity { 

    String boaspecies[] = {"Charina bottae"}; 


    @Override 
    protected void onCreate(Bundle savedInstanceState) { 

     super.onCreate(savedInstanceState); 
     setListAdapter(new ArrayAdapter<String>(Boidae.this, 
       android.R.layout.simple_list_item_1, boaspecies)); 
    } 

    @Override 
    protected void onListItemClick(ListView l, View v, int position, long id) { 

     super.onListItemClick(l, v, position, id); 
     String localposm = boaspecies[position]; 
     try{ 
      Class ourclass = Class.forName("com.xeecros.reptilekeeper" + localposm); 
      Intent bintent = new Intent(Boidae.this, ourclass); 
      startActivity(bintent); 
      }catch (ClassNotFoundException e){ 
       e.printStackTrace(); 
      } 
    } 





}

我serpente类：

package com.xeecros.reptilekeeper; 

import android.app.ListActivity; 
import android.content.Intent; 
import android.os.Bundle; 
import android.view.View; 
import android.widget.ArrayAdapter; 
import android.widget.ListView; 

public class Serpentes extends ListActivity { 

    String snakefam[] = {"Boidae", "Colubridae", 
      "Elapidae", "Pythonidae", "Viperidae"}; 
    @Override 
    protected void onCreate(Bundle savedInstanceState) { 

     super.onCreate(savedInstanceState); 
     setListAdapter(new ArrayAdapter<String>(Serpentes.this, 
       android.R.layout.simple_list_item_1, snakefam)); 
    } 

    @Override 
    protected void onListItemClick(ListView l, View v, int position, long id) { 

     super.onListItemClick(l, v, position, id); 
     String localposm = snakefam[position]; 
     try{ 
     Class ourclass = Class.forName("com.xeecros.reptilekeeper" + localposm); 
     Intent sintent = new Intent(Serpentes.this, ourclass); 
     startActivity(sintent); 
     }catch (ClassNotFoundException e){ 
      e.printStackTrace(); 
     } 
    } 

}

另外，我有一个问题要问：我如何改变列表的外观，因为我不能使用XML，因为它是一个ArrayAdapter。

谢谢。

答

变化通过把这个代替

Class ourclass = Class.forName("com.xeecros.reptilekeeper." + localposm);

注意以下行

Class ourclass = Class.forName("com.xeecros.reptilekeeper" + localposm);

。失踪的错误日志表明它：

ClassNotFoundException: com.xeecros.reptilekeeperBoidae

那里的愚蠢错误谢谢你，但你也知道我会如何改变外观。 – tridianprime 2013-04-23 19:57:46

我确实对此有点怀疑，但那并没有想到。下次不好意思。 – tridianprime 2013-04-23 19:58:58

你是什么意思？你总是可以提出有关外观的新问题。 – Benoit 2013-04-23 19:59:09

答

看这（在类蟒科）：

String boaspecies[] = {"Charina bottae"}; 
.... 
String localposm = boaspecies[position]; 
... 
Class ourclass = Class.forName("com.xeecros.reptilekeeper" + localposm);

这可不行，因为Charina bottae不能是一个类名。

最后你错过了点（在课堂蟒科和蛇亚）：

Class ourclass = Class.forName("com.xeecros.reptilekeeper." + localposm);

干杯！

不错的地方Boidae班也有错误，但问题是无法启动Boidae班。无论如何+1更多的错误 – Benoit 2013-04-23 20:03:34

我的列表活动无法打开

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