Don't understand how to use GridLayout.spec()

Question

This GridLayout is going in my app that has a lot of levels. Each level has a different number of rows and columns. I assume that this GridLayout would be my best bet to u

Answer 1

I didn't exactly understand your question, but here are some examples that explain the syntax:

Spec row1 = GridLayout.spec(0, 2); //here you set row to be first row and it takes 2 cells in height.

Spec row2  = GridLayout.spec(2); //this row goes under row1 and it takes 1 cell(default size = 1) 

and etc.

Spec col0 = GridLayout.spec(0); //same here - first column, width = 1 cell.

Spec colspan2 = GridLayout.spec(0, 2);

so you can do like this:

Spec row1 = GridLayout.spec(0);
Spec row2 = GridLayout.spec(1);
Spec row3 = GridLayout.spec(2);
Spec row4 = GridLayout.spec(3);

Spec col0 = GridLayout.spec(0);
Spec col1 = GridLayout.spec(1); 
Spec col2 = GridLayout.spec(2);

GridLayout gridLayout = new GridLayout(this);
GridLayout.LayoutParams first = new GridLayout.LayoutParams(row1, col0);
/*Here you can set options for first cell which is in first row and first column.*/
first.width = screenWidth;
first.height = quarterScreenWidth * 2;
twoByTwo1.setLayoutParams(first);
twoByTwo1.setGravity(Gravity.CENTER);
twoByTwo1.setBackgroundColor(Color.RED);
twoByTwo1.setText("TOP");
twoByTwo1.setTextAppearance(this, android.R.style.TextAppearance_Large);
gridLayout.addView(twoByTwo1, first)
//You can set all cells like above.

I hope this helps. :)