发生范例

在 onItemClick(AdapterView<?> arg0, View arg1, int arg2, long arg3) 下直接改变其 View 的属性时

会于滑动时产生混乱的情形，例如改变其背景颜色，被改变的内容于滑动时会乱跑到其他的 Item 上

ex: arg1.setBackgroundColor(Color.GREEN);

 

解决方式

将 onItemClick 中改变的 Code 写到 Adapter 上

ex (粗体为需注意的地方): 

public class ImageAdapter extends BaseAdapter {

...

private ArrayList<Integer> selectList = new ArrayList<Integer>();

...

@SuppressLint("UseValueOf")
public void setSelection(int position) {

if(this.selectList.contains(new Integer(position))) {

this.selectList.remove(new Integer(position));

} else {

this.selectList.add(new Integer(position));

}

}

@Override
public View getView(int position, View convertView, ViewGroup parent) {

final ImageView imageView;
if (convertView == null) {

imageView = (ImageView) getLayoutInflater().inflate(R.layout.item_grid_image, parent, false);

} else {

imageView = (ImageView) convertView;

}

...

...

if(this.selectList.contains(new Integer(position))) {

imageView.setBackgroundColor(Color.GREEN);

} else {

imageView.setBackgroundColor(Color.TRANSPARENT);

}

...

...

return imageView;

}

}