为什么我无返回结果的页面跳转不行
package com.example.cqwandroid;
import android.app.Activity;
import android.content.Context;
import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
public class FActivity extends Activity {
private Button bt1;
private Context mContext;
@Override
protected void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
setContentView(R.layout.factivity);
bt1 = (Button)findViewById(R.id.button1_first);
bt1.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
Intent intent=new Intent(mContext,SActivity.class );
startActivity(intent);
}
});
}
}