java - 如何获取适配器创建的所有 View 的实例？

Question

我有一个 ArrayAdapter对于 GridView ，正如您在代码中看到的那样，我填充了 GridView使用 getView带有自定义 View 的方法称为:GridViewCell .

现在单击此自定义 View 会出现一个 FlipAnimation方法运行非常适合单击的 View 。我想要实现的是为适配器中当前所有其他自定义 View 运行相同的动画方法，因此我需要获取所有其他 View 的实例(适配器中有 4 个 View ，因此我需要获取实例其他 3 个)。

public class AnswersGridAdapter extends ArrayAdapter<Answer>
{   
private static final String TAG = AnswersGridAdapter.class.getSimpleName();
private ArrayList<Answer> answersList;
private Context context;
private MainActivity activity;
private QuestionGridFragment fragment;
private View view;

public AnswersGridAdapter(QuestionGridFragment fragment, Context context, int textViewResourceId, ArrayList<Answer> answersList) 
{
    super(context, textViewResourceId, answersList);
     this.answersList = new ArrayList<Answer>();
     this.answersList.addAll(answersList);
     this.context = context;
     this.activity = (MainActivity)context;
     this.fragment = fragment;
}

public View getView(final int position, View convertView, ViewGroup parent)
{
    final View view = new GridViewCell(context);

    if (answersList.get(position).isChecked())
    {
        ((GridViewCell)view).FlipToBackWithoutAnimation();
    }

    view.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) 
        {
            ((GridViewCell)view).FlipAnmiation();
            if (answersList.get(position).isChecked())
            {
                answersList.get(position).setChecked(false);
            }
            else
            {
                answersList.get(position).setChecked(true);
            }

            activity.getEstimatedCostTextView().setText(String.valueOf(activity.getEstimatedCost()));
            fragment.flipOtherChosenAnswer(position);
        }
    });

    ((GridViewCell)view).setTextToTitleTextView(answersList.get(position).getAnswerText());
    return view;
}
}

我正在尝试做这样的事情:

public void flipOtherChosenAnswer(int position) 
{
    int cellCount = answersAdapter.getCount();
    for (int i=0; i < cellCount; i++ )
    {
            ((GridViewCell)answersAdapter.getView(i, null, null)).FlipAnmiation();
    }
}

但这对我没有帮助。如何做到这一点？

Answer 1

如果您管理 onItemClick 中的点击，第一个参数应该是 AdapterView，并且相信您可以访问它的子项。

int count = adpaterViewInstance.getChildCount();
for (int i = 0; i < count; i++) {
   View childAt = adpaterViewInstance.getChildAt(i);
}

编辑:

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