菜鸟提问关于NFC代码的问题

[oo笨小孩oo]

这是我写的判断系统NFC是否已经打开的代码，但运行出现错误，请指教

package my.nfc.namespace;

import android.app.Activity;
import android.content.Context;
import android.nfc.NfcAdapter;
import android.nfc.NfcManager;
import android.os.Bundle;
import android.widget.*;

public class NFCActivity extends Activity {
    /** Called when the activity is first created. */
    TextView textview;
	@Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        textview = (TextView) findViewById(R.id.textview);  
        NfcManager manager = (NfcManager) getSystemService(Context.NFC_SERVICE);
        NfcAdapter adapter = manager.getDefaultAdapter();
        if(adapter.isEnabled()){
        	String s1 = "open";
        	textview.setText(s1);
        }
       
	}
}

[千麴菜菜子]

权限问题

[千麴菜菜子]

在配置文件中加入：<uses-permission android:name="android.permission.NFC"></uses-permission>

[oo笨小孩oo]

[Quote=引用 2 楼 qianqucaicaizi 的回复:]

在配置文件中加入：<uses-permission android:name="android.permission.NFC"></uses-permission>
[/Quote]
谢谢啊！