그리드레이아웃의 자식 뷰(버튼)의 속성(span)변경

case 1 : How to get selected child in GridLayout similar to GridView

case 2 : Set rowSpan or colSpan of a child of a GridLayout programmatically?

How to get selected child in GridLayout similar to GridView

 

  //ポイント位置の初期設定のため
    public void setPointLocation(Point p){
        int  row =  Integer.parseInt(p.getPosition()) % 10 - 1;
        int  col =  Integer.parseInt(p.getPosition()) / 10 - 1;
 
        //表示位置デザイン
        View grid = findViewById(btn[row][col].getId());
        GridLayout.LayoutParams params = new GridLayout.LayoutParams(grid.getLayoutParams());
        params.rowSpec = GridLayout.spec(row,2);
        params.columnSpec = GridLayout.spec(col,2);
        params.setGravity(Gravity.FILL);
        grid.setLayoutParams(params);
        grid.setVisibility(View.VISIBLE);
 
        //表示名デザイン
        Button mBtn = btn[row][col];
        mBtn.setTextColor(Color.WHITE);
        mBtn.setText(p.getPointNum());
        mBtn.setGravity(Gravity.LEFT|Gravity.TOP);
        mBtn.setTextSize(32);
        mBtn.setTypeface(null, Typeface.BOLD);
        mBtn.setPadding(15,0,0,0);
        mBtn.setTextAlignment(View.TEXT_ALIGNMENT_VIEW_START);
 
    }