@Override
public View getView(int position, View convertView, ViewGroup parent) {

    @Override
    public void onClick(View v) {
       Log.i("DBG", "CLICK");
    }
}

<GridView
    android:id="@+id/sensorsGrid"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_margin="5dp"
    android:background="#FF408368"
    android:gravity="center"
    android:numColumns="6"
    android:stretchMode="none" >
</GridView>

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:id="@+id/gridItemLayout"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical"
    android:padding="7dp" >

    <ImageView
        android:id="@+id/icon"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:gravity="center_horizontal"
        android:adjustViewBounds="true"
        android:scaleType="fitXY"
        android:contentDescription="@null"  />

    <TextView
        android:id="@+id/griditem_text"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:gravity="center_horizontal"
        android:textColor="#000000"
        android:textSize="7sp" >
    </TextView>

</LinearLayout>