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更改Spinner内显示文字大小

看代码 很简单 不解释
SpinnerAdapter mAdapter = new SpinnerAdapter(UploadVideoActivity.this,android.R.layout.simple_list_item_1, videoTypes);
mSpinner.setAdapter(mAdapter);

public class SpinnerAdapter extends ArrayAdapter {
Context context;
String[] items = new String[] {};
int textViewResourceId ;
int textSize = 18;
public SpinnerAdapter(final Context context,
final int textViewResourceId, final String[] objects) {
super(context, textViewResourceId, objects);
this.items = objects;
this.context = context;
this.textViewResourceId = textViewResourceId;
}

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

        if (convertView == null) {
            LayoutInflater inflater = LayoutInflater.from(context);
            convertView = inflater.inflate(textViewResourceId, parent, false);
        }

        TextView tv = (TextView) convertView
                .findViewById(android.R.id.text1);
        tv.setText(items[position]);
        tv.setTextSize(textSize);
        return convertView;
    }

    @Override
    public View getView(int position, View convertView, ViewGroup parent) {
        if (convertView == null) {
            LayoutInflater inflater = LayoutInflater.from(context);
            convertView = inflater.inflate(textViewResourceId, parent, false);
        }

        // android.R.id.text1 is default text view in resource of the android.
        // android.R.layout.simple_spinner_item is default layout in resources of android.

        TextView tv = (TextView) convertView.findViewById(android.R.id.text1);
        tv.setText(items[position]);
        tv.setTextSize(textSize);
        return convertView;
    }
}
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