我正在开发一个Android应用程序,它从互联网上检索一些图像并将它们放在ListView上。单击其中一个图像时,将创建另一个活动,其中包含有关图像的一些详细信息。问题是我无法跟踪列表中的点击次数。
public class MyActivity extends ListActivity {
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main_layout);
// List<FlickerPicture> pictures = ...
ListView listView = (ListView) findViewById(android.R.id.list);
listView.setOnItemClickListener(new OnItemClickListener() {
public void onItemClick(AdapterView<?> arg0, View arg1, int arg2, long arg3) {
Log.d("MyActivity", "You clicked on " + arg2);
Toast.makeText(getBaseContext(), "You clicked on " + arg2,
Toast.LENGTH_LONG).show();
}
});
ArrayAdapter<FlickerPicture> adapter = new FlickrItemAdapter(this, pictures);
listView.setAdapter(adapter);
}
}
public class FlickrItemAdapter extends ArrayAdapter<FlickerPicture> {
public FlickrItemAdapter(Activity activity, List<FlickerPicture> pictures) {
super(activity, 0, pictures);
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
Activity activity = (Activity) getContext();
LayoutInflater inflater = activity.getLayoutInflater();
// Inflate the views from XML
View rowView = inflater.inflate(R.layout.miniature_layout, null);
FlickerPicture picture = getItem(position);
// Load the image and set it on the ImageView
ImageButton imageButton = (ImageButton) rowView.findViewById(R.id.miniature_picture);
try {
imageButton.setImageBitmap(Util.loadBitmap(picture.getMiniatureLink()));
} catch (IOException e) {
e.printStackTrace();
}
return rowView;
}
}
如何使列表中的图像“可点击”?
答案 0 :(得分:1)
您使用的是ImageButton而不是ImageView。只需更改miniature_layout.xml
和适配器的getView()
即可使用ImageView,因为ImageButton正在使用Click事件来阻止它到达ListView。