Question

我正在尝试使用cursorAapter将两个字符串绑定到textView。但是我似乎得到了一个未找到资源的例外。我不明白为什么因为它们都是2种字符串类型而且我在程序的开头做了一个条目所以会有东西要显示。

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

主要活动

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;
    }

}

数据库代码段

   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;
    }


}

Answer 1

我猜这一行是问题所在：

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

columnIndex很可能是一个int，它被解释为resourceId。这就是它搜索资源ID 1（列索引）的原因。使用

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

确保使用带字符串的方法。

Android：无法获取字符串资源

1 个答案: