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Android Implementing Designs for Android Customizing a GridView for Friends Converting a ListView to a GridView

Posted by Alice Emmely Sadza
Alice Emmely Sadza
4,205 Points

am stuck.help

Now switch over to ProductsActivity.java and convert it to use the new GridView. Use the comments in the code as your guide to create and set mGridView in this simplified example.

activity_products.xml 
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent" >

    <GridView
        android:id="@+id/gridView"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:layout_alignParentLeft="true"
        android:layout_alignParentTop="true" />

</RelativeLayout>
ProductsActivity.java 
import android.os.Bundle;
import android.widget.GridView;

// This parent class no longer applies. Switch it to Activity
public class ProductsActivity extends ListActivity {

    /*
     * Some code has been omitted for brevity!
     */

    // Declare mGridView here!   
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_products);

        // Set mGridView here!
    }
}

3 Answers

Steve Hunter
Steve Hunter
57,712 Points

Hi there,

First, you need to amend the class inheritance - change that from ListActivity to Activity.

Where is says declare mGridView here do just that. You just need a variable that can hold a GridView. That looks like:

GridView mGridView;

Within onCreate() you need to assign a value to mGridView. You've already given it as id within the XML file, so you just need to link the two together with findViewById() - don't forget to cast the returned type:

mGridView = (GridView) findViewById(R.id.gridView);

That should get you through.

Steve.

Alice Emmely Sadza
Alice Emmely Sadza
4,205 Points
Alice Emmely Sadza
Alice Emmely Sadza
4,205 Points

thanks you so much Steve...

MUZ140663 Question Ngwarati
MUZ140663 Question Ngwarati
11,782 Points
MUZ140663 Question Ngwarati
MUZ140663 Question Ngwarati
11,782 Points

import android.os.Bundle; import android.widget.GridView;

// This parent class no longer applies. Switch it to Activity public class ProductsActivity extends Activity {

/*
 * Some code has been omitted for brevity!
 */

// Declare mGridView here!

protected GridView mGridView;

@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_products);

    // Set mGridView here!
  mGridView = (GridView) findViewById(R.id.gridView);
}

}

Steve Hunter
Steve Hunter
57,712 Points

Hi there,

That part of the challenge is amended where each of the commetns are placed.

It ends up looking like:

import android.os.Bundle;
import android.widget.GridView;

// This parent class no longer applies. Switch it to Activity
public class ProductsActivity extends Activity {

    /*
     * Some code has been omitted for brevity!
     */

    // Declare mGridView here!
    GridView mGridView;

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_products);

        // Set mGridView here!
      mGridView = (GridView) findViewById(R.id.gridView);
    }
}

Steve.