Question

在android中出现 setContentView(R.layout.main); main报错

import android.app.Activity;import android.os.Bundle;public class RelativeLayoutDemo extends Activity { /** Called when the activity is first created.*/ @Override public void onCreate(Bundle savedInstanceState){ super.onCreate(savedInstanceState); setContentView(R.layout.main); }}

Answer 1

setContentView(R.layout.main);这个main应该和res/下的activty_rexxxxxx_demo.xml 一致
改成setContentView(R.layout.activty_rexxxxxx_demo.xml)

Answer 2

你可以试试把layout下xml文件的全名写进去