java - Android 中的 GridView 中未触发 OnItemClick 事件

Question

我正在开发一个应用程序，其中 gridview 包含按钮列表...

当我在 gridview 中放置图像而不是按钮时，onItemClickEvent 会被触发。但是如果我在 gridView 中放置按钮，则单击事件不会被调用...我不知道是什么问题...即使我没有异常。 .

这是我的代码...

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



    GridView gridview = (GridView) findViewById(R.id.mainMenu);
    gridview.setAdapter(new ImageAdapter(this));

    gridview.setOnItemClickListener(new OnItemClickListener()
    {
        public void onItemClick(AdapterView<?> parent, View v, int position, long id)
        {
            Toast.makeText(MainMenu.this, "hello" + position, Toast.LENGTH_SHORT).show();
        }
    });



}
//inner class for adapter

class ImageAdapter extends BaseAdapter {
    private Context mContext;

    public ImageAdapter(Context c)
    {
        mContext = c;
    }

    public int getCount() {
        return mThumbIds.length;
    }

    public Object getItem(int position) {
        return null;
    }

    public long getItemId(int position) {
        return 0;
    }

    // create a new ImageView for each item referenced by the Adapter
    public View getView(int position, View convertView, ViewGroup parent) {
        //ImageView imageView;
        Button btn;

        if (convertView == null) {  // if it's not recycled, initialize some attributes

            btn=new Button(mContext);
       //   imageView = new ImageView(mContext);

            btn.setLayoutParams(new GridView.LayoutParams(120,120));
        //  imageView.setLayoutParams(new GridView.LayoutParams(140,140));


            //imageView.setScaleType(ImageView.ScaleType.FIT_CENTER);
            btn.setPadding(10,15, 10,15);
            btn.setImeActionLabel("hello",0);// actionId)

        //  imageView.setPadding(8,8, 8, 8);

        } else 
        {
            btn=(Button)convertView;
            //imageView=(ImageView)convertView;
        }
        btn.setBackgroundResource(mThumbIds[position]);
        //imageView.setImageResource(mThumbIds[position]);
        //return imageView;
        return btn;
    }

    // references to our images
    private Integer[] mThumbIds = 
    {
            R.drawable.pantrylocator_icon,
            R.drawable.volunteeropportunity_icon,
            R.drawable.volunteerlocator_icon,
            R.drawable.volunteermanagement_icon,
            R.drawable.donationform_icon,
            R.drawable.donationviamsg_icon,
            R.drawable.donationvideo_icon,
            R.drawable.virtualfooddrive_icon,
            R.drawable.newevent_icon,
            R.drawable.pressrelease_icon,
            R.drawable.volunteerphotos_icon,
            R.drawable.aboutus_icon,

     };
}
}

Answer 1

按钮有自己的 OnClickListener:

 public View getView(int position, View convertView, ViewGroup parent) {
        //ImageView imageView;
        Button btn;

        if (convertView == null) {  // if it's not recycled, initialize some attributes

            btn=new Button(mContext);
            btn.setOnClickListener(new View.OnClickListener() {
                public void onClick(View v) {
                    // Perform action on click
                 }
             });
       //   imageView = new ImageView(mContext);

            btn.setLayoutParams(new GridView.LayoutParams(120,120));
        //  imageView.setLayoutParams(new GridView.LayoutParams(140,140));


            //imageView.setScaleType(ImageView.ScaleType.FIT_CENTER);
            btn.setPadding(10,15, 10,15);
            btn.setImeActionLabel("hello",0);// actionId)

        //  imageView.setPadding(8,8, 8, 8);

        } else 
        {
            btn=(Button)convertView;
            //imageView=(ImageView)convertView;
        }
        btn.setBackgroundResource(mThumbIds[position]);
        //imageView.setImageResource(mThumbIds[position]);
        //return imageView;
        return btn;
    }