Android: Add two TextViews to Actionbar Spinner

问题

Is there anyway to add two text views or strings inside of the Actionbar Spinner?

Similar to how the Android GMAIL app does it.

回答1:

You could use a custom ArrayAdapter:

public class spinnerAdapter extends ArrayAdapter {
        private LayoutInflater inflater;
        public spinnerAdapter(Context context, int textViewResourceId) {
            super(context, textViewResourceId);
            inflater = LayoutInflater.from(context);
        }

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

            if(convertView == null){
                holder = new ViewHolder();
                convertView = inflater.inflate(R.layout.spinner_text_layout, null);
                holder.text1 = (TextView)convertView.findViewById(R.id.spinnerText1);
                holder.text2 = (TextView)convertView.findViewById(R.id.spinnerText2);
                convertView.setTag(R.layout.spinner_text_layout, holder);
            } else{
                holder = (ViewHolder)convertView.getTag(R.layout.spinner_text_layout);
            }

            holder.text1.setText("Position: " );
            holder.text2.setText(position);

            return convertView;
            }

        public View getDropDownView(int position, View convertView, ViewGroup parent) {
            ViewHolder2 holder;

            if(convertView == null){
                holder = new ViewHolder2();
                convertView = inflater.inflate(R.layout.spinner_text_layout, null);
                holder.text1 = (TextView)convertView.findViewById(R.id.spinnerText1);
                holder.text2 = (TextView)convertView.findViewById(R.id.spinnerText2);
                convertView.setTag(R.layout.spinner_text_layout, holder);
            } else{
                holder = (ViewHolder2)convertView.getTag(R.layout.spinner_text_layout);
            }

            holder.text1.setText("Position: " );
            holder.text2.setText(position);

            return convertView;
            }

        static class ViewHolder{
            TextView text1;
            TextView text2;
        }

        static class ViewHolder2{
            TextView text1;
            TextView text2;
        }

    }

spinner_text_layout.xml:

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent" >

<TextView
    android:id="@+id/spinnerText1"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_alignParentLeft="true"
    android:layout_alignParentTop="true"
    android:layout_marginLeft="18dp"
    android:layout_marginTop="16dp"
    android:text="Medium Text"
    android:textAppearance="?android:attr/textAppearanceMedium" />

<TextView
    android:id="@+id/spinnerText2"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_alignBottom="@+id/textView1"
    android:layout_alignParentRight="true"
    android:layout_marginRight="23dp"
    android:text="Medium Text"
    android:textAppearance="?android:attr/textAppearanceMedium" />

回答2:

ActionBar.setListNavigationCallbacks(...)

It's just a SpinnerAdapter. If you are familiar with adapters, you can make your own class extending BaseAdapter and have a custom layout. If you aren't familiar with adapters, I suggest you watch The World of ListView.

来源：https://stackoverflow.com/questions/17176763/android-add-two-textviews-to-actionbar-spinner

标签

android

textview

android-actionbar

spinner