如何添加一个按钮控件在运行时的机器人XML看法？ [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中。我想控件添加到这个布局在运行时（我想补充的一系列包含按钮控件的其他线性布局）。我能做到这一点，如果是的话，怎么办？

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?

感谢

推荐答案

我看到错误UR在这里做什么

I see the error u r doing here

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

您ř取布局的LinearLayout对象，你应该采取的LinearLayout ID

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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