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我想在按钮单击时显示图像,但我的代码中有三个错误.怎么了？

1. class name "SequencerActivity"
   

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   SequencerActivity类型必须实现继承的抽象方法DialogInterface.OnClickListener.onClick(DialogInterface, int).

2. next.setOnClickListener(this);
   

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   setOnClickListener(View.OnClickListener)View类型中的方法不适用于参数(SequencerActivity).

3. onClick(View v)
   

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onClick(View)类型的方法SequencerActivity必须覆盖或实现超类型方法.

这是给出这些错误的代码:

public class SequencerActivity extends Activity implements OnClickListener
{
private int imageCounter = 0;
private ImageView imageLoader;

private int[] imageList = {R.drawable.f03, R.drawable.f04, R.drawable.f05, R.drawable.f06};

@Override
public void onCreate(Bundle savedInstanceState) 
{
    setContentView(R.layout.main);//this one is the common parent layout for all image views
    super.onCreate(savedInstanceState);

    /*requestWindowFeature(Window.FEATURE_NO_TITLE);
    getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,
    WindowManager.LayoutParams.FLAG_FULLSCREEN);*/

    //int image1 = R.drawable.image_w_lbl_0;

    imageLoader = (ImageView) findViewById(R.id.imageLoader);
    //imageLoader.setImageResource(image1);

    Button next = (Button) findViewById(R.id.next);
    Button …