TextView Sorunu

İkinci sıraya neden textView ekleyemiyorum?

Main Activity'im

​

    GridView gridView;

    String[] dizi = {
            "7", "8", "9", "C", "4", "5", "6", "/", "1", "2", "3", "*", "0", "=", "+", "-"
    };

    @Override
    protected void onCreate(javascript:void(0)Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        gridView = (GridView) findViewById(R.id.gridView1);

        ArrayAdapter<String> adapter = new MyAdapter(this);
        adapter.addAll(dizi);//diziyi adaptöre gönderdik.
        gridView.setAdapter(adapter);//gridview ve adaptörü bağladık.
        adapter.notifyDataSetChanged();
    }

    private class MyAdapter extends ArrayAdapter<String> {//adaptörü sınıf olarak oluşturduk.

        MyAdapter(@NonNull Context context) {
            super(context, android.R.layout.simple_list_item_1);
        }

        @NonNull
        @Override
        public View getView(int position, @Nullable View convertView, @NonNull ViewGroup parent) {// pozisyonunu alır ve çizer
            if (convertView == null) {
                convertView = getLayoutInflater().inflate(R.layout.calc_button, parent, false);//VİEWVİ GÖRSEL HALE GETİRRİ INFLATER
            }

            TextView button = (TextView) convertView;
            button.setText(getItem(position));//pozisyonu alır.

            return button;
        }
    }
}

Click and drag to move
​

calc_button.xml

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="horizontal" android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:weightSum="1">

    <TextView
        android:id="@+id/textView2"
        android:layout_width="30dp"
        android:layout_height="30dp"
        android:background="@color/colorAccent"
        android:gravity="center"
        android:text="7"
        android:textAlignment="center"
        android:layout_weight="0.05"></TextView>

    <TextView
        android:id="@+id/textView1"
        android:layout_width="30dp"
        android:layout_height="30dp"
        android:background="@color/colorAccent"
        android:gravity="center"
        android:text="8"
        android:textAlignment="center"></TextView>

    <TextView
        android:id="@+id/textView3"
        android:layout_width="30dp"
        android:layout_height="30dp"
        android:background="@color/colorAccent"
        android:gravity="center"
        android:text="9"
        android:textAlignment="center"></TextView>

    <TextView
        android:id="@+id/textView"
        android:layout_width="30dp"
        android:layout_height="30dp"
        android:background="@color/colorAccent"
        android:gravity="center"
        android:text="C"
        android:textAlignment="center"></TextView>



</LinearLayout>