Android - How set Alternate Cell Color in a Grid

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1

Hi,
How set alternate cell Color in a grid ?
Please I’m new at android so a step by step example :slight_smile:

Bye

2

My attempt


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

public class ListViewA extends Activity {
	/** Called when the activity is first created. */
	@Override
	public void onCreate(Bundle savedInstanceState) {

		super.onCreate(savedInstanceState);
		setContentView(R.layout.main);
		GridView gridview = (GridView) findViewById(R.id.gridview);

		gridview.setAdapter(new SpecialAdapter(this));
	}

}

import android.content.Context;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;

public class SpecialAdapter extends BaseAdapter {
	private Context mContext;
	private int[] colors = new int[] { 0x30FF0000, 0x300000FF };

	public SpecialAdapter(Context c) {
		mContext = c;
	}

	public int getCount() {
		return 0;
	}

	public Object getItem(int position) {
		return null;
	}

	public long getItemId(int position) {
		return 0;
	}

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

		int colorPos = position % colors.length;
		convertView.setBackgroundColor(colors[colorPos]);
		return convertView;
	}

}

//Layout
<?xml version="1.0" encoding="utf-8"?>
<GridView xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/gridview"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:columnWidth="90dp"
    android:numColumns="auto_fit"
    android:verticalSpacing="10dp"
    android:horizontalSpacing="10dp"
    android:stretchMode="columnWidth"
    android:gravity="center"
/>

but it doesn’t work :frowning: