nested looping in android

Question

I am having an array of images. I need to display 3 images in a row and then the next in another row. How to do this using nested for loops. can anyone help me over this? thanks.

Answer 1

Its simple, use GridView with 3 columns.

<GridView
        android:layout_height="wrap_content"
        android:id="@+id/gridView1"
        android:layout_width="match_parent"
        android:numColumns="3"
        android:horizontalSpacing="10dp"
        android:verticalSpacing="10dp">

Answer 2

The basic nested loop structure looks like this:

int imageIndex = 0;
for (int row = 0; row < rowCount; row++) {
    for (int column = 0; column < columnCount; column++ {
        // Draw your image here at x position of (column * image width)
        // and y position of (row * image height). Add a bit to each if you
        // want some spacing between your images.
        // For example:
        drawMyImage(images[imageIndex++], column * imageWidth, row * imageHeight);
    }
}

Answer 3

You need two loops. The outer loop is for the rows. Each element in the row corresponds with a column, so the inner loop is for the columns.