的FrameLayout layout_weight编程 [英] FrameLayout layout_weight programmatically

问题描述

我试图创建一个的FrameLayout 编程如下（此视图将漂浮在的LinearLayout ）

I'm trying to create a FrameLayout programmatically as follows(this view will float on the the bottom center of a LinearLayout):

    FrameLayout bottomFrameLayout = new FrameLayout(context);
    bottomFrameLayout.setLayoutParams(new FrameLayout.LayoutParams(0,LayoutParams.FILL_PARENT,Gravity.CENTER | Gravity.BOTTOM));

由于我设置 layout_width = 0dp ，我想也设置 layout_weight 来控制宽度。我该怎么办呢？

Since I set layout_width=0dp, I would like to also set layout_weight to control the width. How can I do that?

推荐答案

您需要使用 LinearLayout.LayoutParams（INT宽度，高度INT，浮重）构造，因为的FrameLayout 是的LinearLayout 因此，你正在为孩子PARAMS在的LinearLayout 。

You need to use LinearLayout.LayoutParams (int width, int height, float weight) constructor since FrameLayout is child of LinearLayout therefore you are setting params for child in LinearLayout.

编辑：

 FrameLayout bottomFrameLayout = new FrameLayout(context);
 LinearLayout.LayoutParams lp = new LinearLayout.LayoutParams(0,LayoutParams.FILL_PARENT,mWeight);
 lp.gravity = Gravity.CENTER | Gravity.BOTTOM;
 bottomFrameLayout.setLayoutParams(lp);

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