如何在运行时向 android xml 视图添加按钮控件? [英] How to add a button control to an android xml view at runtime?

问题描述

我有一个 android xml 布局，main.xml.我想在运行时向这个布局添加控件(我想添加一系列包含按钮控件的附加线性布局).我可以这样做吗?如果可以，怎么做?

I have an android xml layout, main.xml. I would like to add controls to this layout at runtime (I would like to add a series of additional linear layouts that contain buttons controls). Can I do that and if yes, how?

谢谢

推荐答案

我看到你在这里做的错误

I see the error u r doing here

LinearLayout mainLayout = (LinearLayout) findViewById(R.layout.main);

您将布局作为 Linearlayout 对象，您应该将 LinearLayout id 设为

You r taking the layout as Linearlayout object, you should take the LinearLayout id

试试这个

LinearLayout lnr = (LinearLayout) findViewById(R.id.LinearLayout01);

Button b1 = new Button(this);

b1.setText("Btn");

lnr.addView(b1);

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