Question

我想在for循环中用java创建复选框。我想在gridlayout中添加它。我的问题是复选框只包装内容大小。我希望他们应该覆盖全宽。我可以很容易地在xml中得到它。

<GridLayout
            android:id="@+id/checkBoxLayout"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_marginBottom="5dp"
            android:columnCount="2">
            <CheckBox
                android:layout_height="match_parent"
                android:layout_width="wrap_content"
                android:layout_columnWeight="1"
                android:text="dfdfdffddfd"/>
            <CheckBox
                android:layout_height="match_parent"
                android:layout_width="wrap_content"
                android:layout_columnWeight="1"
                android:text="dfdfdffddfd"/>
            <CheckBox
                android:layout_height="match_parent"
                android:layout_width="wrap_content"
                android:layout_columnWeight="1"
                android:text="dfdfdffddfd"/>
        </GridLayout>

但我希望像这样添加这些

  <GridLayout
            android:id="@+id/checkBoxLayout"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_marginBottom="5dp"
            android:columnCount="2">


        </GridLayout>

和Java代码

   for (int i = 0; i < 3; i++) {
        CheckBox cb = new CheckBox(getActivity());
        cb.setText("I'm dynamic!");
        cb.setTextColor(Color.WHITE);
        cb.setPadding(10, 10, 10, 10);
        checkBoxLayout.addView(cb);
    }

Answer 1

类似的东西：

final int h = 25;
final int w = 200;
final int margin = 10;

checkBoxLayout.setColumnCount(3);
checkBoxLayout.setRowCount(1);

for( i = 0 ; i < 3 ; i++ ) { 
   CheckBox check = new CheckBox( getActivity() );
   check.setText("Checkout");
   // check.setPadding(0, 0, 0, 0);
   LinearLayout.LayoutParams params = new LinearLayout.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.WRAP_CONTENT);
   // left, top, right, bottom
   params.setMargins(0, margin , 0, margin);
   params.gravity = Gravity.NO_GRAVITY;
   check.setLayoutParams(params);
   check.setGravity(Gravity.CENTER);
   checkBoxLayout.addView(check, w, h);
}

Answer 2

GridLayout.LayoutParams param = new GridLayout.LayoutParams(GridLayout.spec(
                GridLayout.UNDEFINED, GridLayout.FILL, 1f),
                GridLayout.spec(GridLayout.UNDEFINED, GridLayout.FILL, 1f));
        cb.setLayoutParams(param);

使用权重属性

2 个答案: