Placing/Overlapping(z-index) a view above another view in android

Question

I have a linear layout which consists of imageview and textview , one below another in a linear layout.

Answer 1

Changing the draw order

An alternative is to change the order in which the views are drawn by the parent. You can enable this feature from ViewGroup by calling setChildrenDrawingOrderEnabled(true) and overriding getChildDrawingOrder(int childCount, int i).

Example:

/**
 * Example Layout that changes draw order of a FrameLayout
 */
public class OrderLayout extends FrameLayout {

    private static final int[][] DRAW_ORDERS = new int[][]{
            {0, 1, 2},
            {2, 1, 0},
            {1, 2, 0}
    };

    private int currentOrder;

    public OrderLayout(Context context) {
        super(context);
        setChildrenDrawingOrderEnabled(true);
    }

    public void setDrawOrder(int order) {
        currentOrder = order;
        invalidate();
    }

    @Override
    protected int getChildDrawingOrder(int childCount, int i) {
        return DRAW_ORDERS[currentOrder][i];
    }
}

Output:

Calling OrderLayout#setDrawOrder(int) with 0-1-2 results in: