Android：无法获取字符串资源

我想使用cursorAapter将两个字符串绑定到一个textView。但是，我似乎得到一个资源没有发现异常。我不明白为什么，因为它们都是2个字符串类型，我在程序开始时输入一个条目，所以会显示一些内容。Android：无法获取字符串资源

logcat的

10-21 19:44:51.042: E/AndroidRuntime(14930): Uncaught handler: thread main exiting due to uncaught exception 
10-21 19:44:51.062: E/AndroidRuntime(14930): android.content.res.Resources$NotFoundException: String resource ID #0x1 
10-21 19:44:51.062: E/AndroidRuntime(14930): at android.content.res.Resources.getText(Resources.java:200) 
10-21 19:44:51.062: E/AndroidRuntime(14930): at android.widget.TextView.setText(TextView.java:2813) 
10-21 19:44:51.062: E/AndroidRuntime(14930): at com.example.mycoursetimetable.TestCursorAdapter.bindView(TestCursorAdapter.java:28) 
10-21 19:44:51.062: E/AndroidRuntime(14930): at android.support.v4.widget.CursorAdapter.getView(CursorAdapter.java:256) 
10-21 19:44:51.062: E/AndroidRuntime(14930): at android.widget.AbsListView.obtainView(AbsListView.java:1274) 
10-21 19:44:51.062: E/AndroidRuntime(14930): at android.widget.ListView.makeAndAddView(ListView.java:1668) 
10-21 19:44:51.062: E/AndroidRuntime(14930): at android.widget.ListView.fillDown(ListView.java:637) 
10-21 19:44:51.062: E/AndroidRuntime(14930): at android.widget.ListView.fillFromTop(ListView.java:694) 
10-21 19:44:51.062: E/AndroidRuntime(14930): at android.widget.ListView.layoutChildren(ListView.java:1521) 
10-21 19:44:51.062: E/AndroidRuntime(14930): at android.widget.AbsListView.onLayout(AbsListView.java:1113) 
10-21 19:44:51.062: E/AndroidRuntime(14930): at android.view.View.layout(View.java:6830) 
10-21 19:44:51.062: E/AndroidRuntime(14930): at android.widget.LinearLayout.setChildFrame(LinearLayout.java:1119) 
10-21 19:44:51.062: E/AndroidRuntime(14930): at android.widget.LinearLayout.layoutVertical(LinearLayout.java:998) 
10-21 19:44:51.062: E/AndroidRuntime(14930): at android.widget.LinearLayout.onLayout(LinearLayout.java:918) 
10-21 19:44:51.062: E/AndroidRuntime(14930): at android.view.View.layout(View.java:6830) 
10-21 19:44:51.062: E/AndroidRuntime(14930): at android.widget.FrameLayout.onLayout(FrameLayout.java:333) 
10-21 19:44:51.062: E/AndroidRuntime(14930): at android.view.View.layout(View.java:6830) 
10-21 19:44:51.062: E/AndroidRuntime(14930): at android.widget.LinearLayout.setChildFrame(LinearLayout.java:1119) 
10-21 19:44:51.062: E/AndroidRuntime(14930): at android.widget.LinearLayout.layoutVertical(LinearLayout.java:998) 
10-21 19:44:51.062: E/AndroidRuntime(14930): at android.widget.LinearLayout.onLayout(LinearLayout.java:918) 
10-21 19:44:51.062: E/AndroidRuntime(14930): at android.view.View.layout(View.java:6830) 
10-21 19:44:51.062: E/AndroidRuntime(14930): at android.widget.FrameLayout.onLayout(FrameLayout.java:333) 
10-21 19:44:51.062: E/AndroidRuntime(14930): at android.view.View.layout(View.java:6830) 
10-21 19:44:51.062: E/AndroidRuntime(14930): at android.view.ViewRoot.performTraversals(ViewRoot.java:996) 
10-21 19:44:51.062: E/AndroidRuntime(14930): at android.view.ViewRoot.handleMessage(ViewRoot.java:1633) 
10-21 19:44:51.062: E/AndroidRuntime(14930): at android.os.Handler.dispatchMessage(Handler.java:99) 
10-21 19:44:51.062: E/AndroidRuntime(14930): at android.os.Looper.loop(Looper.java:123) 
10-21 19:44:51.062: E/AndroidRuntime(14930): at android.app.ActivityThread.main(ActivityThread.java:4363) 
10-21 19:44:51.062: E/AndroidRuntime(14930): at java.lang.reflect.Method.invokeNative(Native Method) 
10-21 19:44:51.062: E/AndroidRuntime(14930): at java.lang.reflect.Method.invoke(Method.java:521) 
10-21 19:44:51.062: E/AndroidRuntime(14930): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:860) 
10-21 19:44:51.062: E/AndroidRuntime(14930): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:618) 
10-21 19:44:51.062: E/AndroidRuntime(14930): at dalvik.system.NativeStart.main(Native Method) 
10-21 19:44:51.082: I/dalvikvm(14930): threadid=7: reacting to signal 3

主要Activty

public class MyCourses extends Activity { 

    static final String TEST = "com.example.mycoursetimetable.TEST"; 
    database MODULEDATABASE; 
    ListView listContent; 
    Cursor cursor; 

     @Override 
     public void onCreate(Bundle savedInstanceState) 
     { 
     super.onCreate(savedInstanceState); 

     setContentView(R.layout.activity_my_courses); 

     listContent =(ListView)findViewById(R.id.list); 
     MODULEDATABASE = new database(MyCourses.this); 

     MODULEDATABASE.createEntry("TestCode", "TestName"); 

     MODULEDATABASE.openToRead(); // don't forget this part! 
     cursor = MODULEDATABASE.getData(); 

     listContent = (ListView)findViewById(R.id.list); 
     TestCursorAdapter ca = new TestCursorAdapter(this, cursor, 0); 
     listContent.setAdapter(ca); 

     } 

}

光标适配器

public class TestCursorAdapter extends CursorAdapter { 

    private LayoutInflater viewInflater; 

    public TestCursorAdapter(Context context, Cursor c, int flags) { 
     super(context, c, flags); 
     // TODO Auto-generated constructor stub 
     viewInflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE); 
    } 

    @Override 
    public void bindView(View v, Context context, Cursor c) { 
     TextView text_moduleId = (TextView)v.findViewById(R.id.labelDay); 
     TextView text_modulecode = (TextView)v.findViewById(R.id.labelModuleCode); 
     TextView text_modulename = (TextView)v.findViewById(R.id.labelEditModuleFull); 

     //text_moduleId.setText(c.getString(c.getColumnIndex(database.KEY_ROWID))); 
     text_modulecode.setText(c.getColumnIndex(database.KEY_MODULECODE)); 
     text_modulename.setText(c.getColumnIndex(database.KEY_MODULENAME)); 
    } 

    @Override 
    public View newView(Context context, Cursor c, ViewGroup parent) { 
     View v = viewInflater.inflate(R.layout.listcourses, parent, false); 
     return v; 
    } 

}

数据库片断

public void onCreate(SQLiteDatabase db) { 
      db.execSQL("CREATE TABLE " + DATABASE_TABLE + " (" + 
         KEY_ROWID + " INTEGER PRIMARY KEY AUTOINCREMENT, " + 
         KEY_MODULECODE + " TEXT, " + 
         KEY_MODULENAME + " TEXT); " 
        ); 
     } 

     @Override 
     public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) { 
      // TODO Auto-generated method stub 
      db.execSQL("DROP TABEL IF EXISTS " + DATABASE_TABLE); 
      onCreate(db); 
     } 
    } 

    public database(Context c){ 
     myContext = c; 
    } 

    public database openToWrite()throws SQLException{ 
     myHelper = new DbHelper(myContext); 
     moduleDatabase = myHelper.getWritableDatabase(); 
     return this; 
    } 

    public database openToRead()throws SQLException{ 
     myHelper = new DbHelper(myContext); 
     moduleDatabase = myHelper.getReadableDatabase(); 
     return this; 
    } 
    public void close(){ 
    myHelper.close(); 
    } 

    public long createEntry(String moduleCode, String moduleName) { 
     ContentValues cv = new ContentValues(); 
     cv.put(KEY_MODULECODE,moduleCode); 
     cv.put(KEY_MODULENAME,moduleName); 
     return moduleDatabase.insert(DATABASE_TABLE,null,cv); 
     // TODO Auto-generated method stub 

    } 

    public Cursor getData() { 

     String[] columns = new String [] {KEY_ROWID,KEY_MODULECODE, KEY_MODULENAME}; 
     Cursor c = moduleDatabase.query(DATABASE_TABLE, columns, null, null, null, null, null); 

     return c; 
    } 


}

来源

2012-11-02 Calgar99

你确定textviews id是正确的吗？ –

哪个是适配器中的第28行？ –

我guerss这条线的问题是：

text_modulecode.setText(c.getColumnIndex(database.KEY_MODULECODE));

器的columnIndex是最有可能的一个int，它被解释为RESOURCEID。这就是为什么它正在搜索资源ID 1（列索引）。使用

....setText(String.valueOf(c.getColumnIndex(database.KEY_MODULECODE)));

确保您使用接受字符串的方法。

来源

2012-11-02 12:47:27 koljaTM

谢谢，这解决了一个问题，我想。我现在得到一个与我的createEntry方法的返回类型有关的空指针异常？ – Calgar99

如果您想要返回一个带有空值的Long（对象类型），它会尝试将其自动取消装入长（原始类型），这会导致NullPointerException。 – koljaTM

我将它转换为无返回类型的void方法，但我仍然得到一个与NullPointerException相关的错误moduleDatabase.insert（DATABASE_TABLE，null，cv）; – Calgar99

Android：无法获取字符串资源

回答

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