Question

我只是根据此stackoverflow answer(see @Destil answer)向spinner显示多项选择。这里我的问题是我无法通过多种选择来调整Spinner中项目的高度。如何重新调整每个项目的高度？

Answer 1

据我所知，您必须使用自定义适配器，并覆盖getDropDown和getView方法。您将能够自定义自定义布局的每个项目。

嗯......单词很好，例如更好，尝试类似的东西：

public class CustomStringArrayAdapter extends ArrayAdapter<String>
{
private Activity    myActivity;

public CustomStringArrayAdapter(Context context, int layoutResourceId, int textViewResourceId, List<String> objects, Activity act)
{
    super(context, layoutResourceId, textViewResourceId, objects);
    this.myActivity = act;
}

@Override
public View getDropDownView(int position, View convertView, ViewGroup parent)
{
    return getCustomView(position, convertView, parent);
}

public View getCustomView(int position, View convertView, ViewGroup parent)
{
    LayoutInflater inflater = myActivity.getLayoutInflater();
    View row = inflater.inflate(R.layout.spinner_layout, parent, false);
    TextView label = (TextView) row.findViewById(R.id.spinner_textview);
    label.setText(getItem(position));
    LinearLayout layout = (LinearLayout) row.findViewById(R.id.spinner_linear_layout);

    return row;
}

@Override
public View getView(int position, View convertView, ViewGroup parent)
{
    LayoutInflater inflater = myActivity.getLayoutInflater();
    View row = inflater.inflate(R.layout.spinner_layout, parent, false);
    TextView label = (TextView) row.findViewById(R.id.spinner_textview);
    label.setText(getItem(position));

    return row;
    }

}

布局：

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="50dp"
    android:layout_gravity="center"
    android:gravity="center"
    android:background="@drawable/transparent"
    android:id="@+id/spinner_linear_layout">
    <TextView
        android:layout_height="fill_parent"
        android:layout_width="fill_parent"
        android:gravity="center"
        android:layout_gravity="center"
        android:textSize="21sp"
        android:singleLine="true"
        android:id="@+id/spinner_textview"
        android:textColor="@color/black" />
</LinearLayout>

（但它只是一个示例，如果您想根据选择调整大小，可以在每个对象上添加一个布尔mSelected并根据此布尔值更改视图）

编辑：然后在MultiSpinner中：

删除它：

ArrayAdapter<String> adapter = new ArrayAdapter<String>(getContext(),
            android.R.layout.simple_spinner_item,
            new String[] { spinnerText });
    setAdapter(adapter);

并在微调器中添加新的自定义适配器：

MultiSpinner mMultiSpinner = (MultiSpinner) findViewById(R.id.multispinner);
mMultiSpinner.setAdapter(mCustomArrayAdapter);

如何通过多项选择重新调整Spinner中项目的高度？

1 个答案: