安卓的一个小问题 OnClickListener 在线等

Question

报的错误是

 The method setOnClickListener(View.OnClickListener) in the type View is not applicable for the arguments (MainActivity.mClick)
 ------------------------------------
 The type MainActivity.mClick must implement the inherited abstract method DialogInterface.OnClickListener.onClick(DialogInterface, int)

代码是比这书上敲的 很简单

 protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        txt = (TextView) findViewById(R.id.shishi);
        button = (Button) findViewById(R.id.button);
        button.setOnClickListener(new mClick());
    }

    class mClick implements OnClickListener {
        public void onClick(View v) {
            MainActivity.this.setTitle("改变标题");
            txt.setText(R.string.Str1);
        }
    }

Answer 1

1、是否引入了
import android.view.View;
import android.view.View.OnClickListener;

2、是否在strings.xml中增加了R.string.Str1
3、是否编译了