Making Gridview Items Square

How to force GridView to generate square cells in Android

First, you're going to want to create a custom View class that you can use instead of the default LinearLayout you're using. Then you want to override the View's onMeasure call, and force it to be square:

public class GridViewItem extends ImageView {

    public GridViewItem(Context context) {
        super(context);
    }

    public GridViewItem(Context context, AttributeSet attrs) {
        super(context, attrs);
    }

    public GridViewItem(Context context, AttributeSet attrs, int defStyle) {
        super(context, attrs, defStyle);
    }

    @Override
    public void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
        super.onMeasure(widthMeasureSpec, widthMeasureSpec); // This is the key that will make the height equivalent to its width
    }
}

Then you can change your row_grid.xml file to:

<path.to.item.GridViewItem xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/item_image"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:scaleType="centerCrop"
    android:src="@drawable/ic_launcher" >
</path.to.item.GridViewItem>

Just be sure to change "path.to.item" to the package where your GridViewItem.java class resides.

I also removed your LinearLayout parent since it wasn't doing anything for you there.

Edit:

Also changed scaleType from fitXY to centerCrop so that your image doesn't stretch itself and maintains its aspect ratio. And, as long as it's a square image, nothing should be cropped, regardless.

Square cells in GridView

Make sure your cell is square.

For this, you can set the width and height of the RelativeLayout programmatically with the value screen_width/4.

Flutter Gird View - Square items

Remove the Padding around the Card and specify the spacing between the elements in your GridView using:

• mainAxisSpacing
• crossAxisSpacing

GridView to make square board

Create your own class MyGridView which extends GridView.

Override its onMeasure(...) method and set height == width, like so:

@Override
public void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
    super.onMeasure(widthMeasureSpec, widthMeasureSpec);
}

Then, create your own GridViewItem extending a View subclass e.g. TextView or ImageView etc. Override its onMeasure(...) method in the same way.

MyGridViewand its items will all appear square.

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