Spinner(一)——修改系统自带Spinner字体大小和颜色完整示例

MainActivity如下:

package cc.test;

import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.widget.AdapterView;
import android.widget.ArrayAdapter;
import android.widget.Spinner;
import android.widget.AdapterView.OnItemSelectedListener;
/**
 * Demo描述:
 * 修改系统自带Spinner字体大小和颜色的完整示例
 * 
 * 参考资料:
 * http://blog.csdn.net/xuzhuang2008/article/details/7641685
 * Thank you very much
 */
public class TestSpinnerActivity extends Activity {
	private Spinner mSpinner;
	private ArrayAdapter<String> mAdapter ;
	private String [] mStringArray;
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        init();
    }
    
    private void init(){
    	mSpinner=(Spinner) findViewById(R.id.spinner);
    	mStringArray=getResources().getStringArray(R.array.test_string_array);
		//使用自定义的ArrayAdapter
		mAdapter = new TestArrayAdapter(TestSpinnerActivity.this,mStringArray);
		
		//设置下拉列表风格(这句不些也行)
		//mAdapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
		mSpinner.setAdapter(mAdapter);
		//监听Item选中事件
		mSpinner.setOnItemSelectedListener(new ItemSelectedListenerImpl());
          
    }
    
    private class ItemSelectedListenerImpl implements OnItemSelectedListener{
		@Override
		public void onItemSelected(AdapterView<?> parent, View view, int position,long arg3) {
			System.out.println("选中了:"+mStringArray[position]);
		}

		@Override
		public void onNothingSelected(AdapterView<?> parent) {}
    	
    }
}

TestArrayAdapter如下:

package cc.test;

import android.content.Context;
import android.graphics.Color;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ArrayAdapter;
import android.widget.TextView;

public class TestArrayAdapter extends ArrayAdapter<String> {
	private Context mContext;
    private String [] mStringArray;
	public TestArrayAdapter(Context context, String[] stringArray) {
		super(context, android.R.layout.simple_spinner_item, stringArray);
		mContext = context;
		mStringArray=stringArray;
	}

	@Override
	public View getDropDownView(int position, View convertView, ViewGroup parent) {
		//修改Spinner展开后的字体颜色
		if (convertView == null) {
			LayoutInflater inflater = LayoutInflater.from(mContext);
			convertView = inflater.inflate(android.R.layout.simple_spinner_dropdown_item, parent,false);
		}

		//此处text1是Spinner默认的用来显示文字的TextView
		TextView tv = (TextView) convertView.findViewById(android.R.id.text1);
		tv.setText(mStringArray[position]);
		tv.setTextSize(22f);
		tv.setTextColor(Color.RED);

		return convertView;

	}

	@Override
	public View getView(int position, View convertView, ViewGroup parent) {
		// 修改Spinner选择后结果的字体颜色
		if (convertView == null) {
			LayoutInflater inflater = LayoutInflater.from(mContext);
			convertView = inflater.inflate(android.R.layout.simple_spinner_item, parent, false);
		}

		//此处text1是Spinner默认的用来显示文字的TextView
		TextView tv = (TextView) convertView.findViewById(android.R.id.text1);
		tv.setText(mStringArray[position]);
		tv.setTextSize(18f);
		tv.setTextColor(Color.BLUE);
		return convertView;
	}

}

main.xml如下:

<?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="fill_parent"
    android:orientation="vertical" >

    <Spinner
        android:id="@+id/spinner"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
     />

</LinearLayout>

arrays.xml如下:

<?xml version="1.0" encoding="utf-8"?>
<resources>

    <string-array name="test_string_array">
        <item>无</item>
        <item>失眠</item>
        <item>贫血</item>
        <item>脱发</item>
        <item>疲惫</item>
        <item>烦躁</item>
        <item>偏胖</item>
        <item>偏瘦</item>
        <item>白发</item>
        <item>头痛</item>
        <item>近视</item>
        <item>弱视</item>
        <item>耳鸣</item>
    </string-array>
   
</resources>