如何在运行时为Button添加边距？

Question

我必须在LinearLayout上添加多个按钮。但我想把这些按钮分开5px。我找不到设置按钮边距的方法。有什么想法吗？

Answer 1

使用button元素的layout_margin属性。这不起作用吗？

<Button android:layout_margin="5px" (...)/>

修改

在java中创建按钮时，LayoutParams用于指定边距等。

Button button = new Button();
(....)
params = new LinearLayout.LayoutParams();
params.leftMargin = 5;
(set params as you need)
parent.addView(button, params);

您使用的LayoutParams必须与您添加按钮的布局相匹配（请参阅http://developer.android.com/reference/android/view/ViewGroup.LayoutParams.html）。对于LinearLayout，请使用LinearLayout.LayoutParams并相应地设置* Margin字段。

Answer 2

试试这个：

//Assuming your button is in a LinearLayout as stated
LinearLayout.LayoutParams params = myButton.getLayoutParams();
params.setMargins(0, 0, 0, 0) //left, top, right, bottom
myButton.setLayoutParams(params);

Answer 3

MarginLayoutParams params = (MarginLayoutParams) vector8.getLayoutParams();
params.width = 200; params.leftMargin = 100; params.topMargin = 200;
vector8.setLayoutParams(params);

需要使用类型：MarginLayoutParams

Answer 4

为按钮添加填充也可以解决您的问题。看一下这个 http://developer.android.com/resources/tutorials/views/hello-formstuff.html#CustomButton

Answer 5

使用此代码在运行时设置边距

  LinearLayout.LayoutParams params = (LinearLayout.LayoutParams) btnContainer.getLayoutParams();
        params.setMargins(5, 50, 10, 0); //left, top, right, bottom
        view_whwre_set_margin.setLayoutParams(params);