以編程方式設置TableRow的邊距

Question

我在代碼中動態創建了TableRows ，我想為這些TableRows設置邊距。

我的TableRows創建如下：

// Create a TableRow and give it an ID
        TableRow tr = new TableRow(this);       
        tr.setLayoutParams(new ViewGroup.LayoutParams(LayoutParams.FILL_PARENT, LayoutParams.WRAP_CONTENT));  
        Button btnManageGroupsSubscriptions = new Button(this);
        btnManageGroupsSubscriptions.setLayoutParams(new LayoutParams(LayoutParams.WRAP_CONTENT, 40));

        tr.addView(btnManageGroupsSubscriptions);
        contactsManagementTable.addView(tr);

如何動態設置這些邊距？

Answer 1

您必須正確設置LayoutParams。 邊距是布局的屬性而不是TableRow，因此您必須在LayoutParams中設置所需的邊距。

下面是一個示例代碼：

TableRow tr = new TableRow(this);  
TableLayout.LayoutParams tableRowParams=
  new TableLayout.LayoutParams
  (TableLayout.LayoutParams.FILL_PARENT,TableLayout.LayoutParams.WRAP_CONTENT);

int leftMargin=10;
int topMargin=2;
int rightMargin=10;
int bottomMargin=2;

tableRowParams.setMargins(leftMargin, topMargin, rightMargin, bottomMargin);

tr.setLayoutParams(tableRowParams);

Answer 2

這是有效的：

TableRow tr = new TableRow(...);
TableLayout.LayoutParams lp = 
new TableLayout.LayoutParams(TableLayout.LayoutParams.MATCH_PARENT,
                             TableLayout.LayoutParams.WRAP_CONTENT);

lp.setMargins(10,10,10,10);             
tr.setLayoutParams(lp);

------

// the key is here!
yourTableLayoutInstance.addView(tr, lp);

您需要將TableRow添加到TableLayout再次傳遞布局參數！