FrameLayout和handle实现霓虹灯效果

<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_height="match_parent"
    android:layout_width="match_parent"
    >

    <!-- 先定义的TextView在下面，后定义的在上面 -->
    <TextView
        android:id="@+id/textView01_id"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:width="320dp"
        android:height="320dp"
        android:layout_gravity="center"
        android:background="#f00"/>

    <TextView
        android:id="@+id/textView02_id"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:width="280dp"
        android:height="280dp"
        android:layout_gravity="center"
        android:background="#0f0"/>
    
    <TextView
        android:id="@+id/textView03_id"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:width="240dp"
        android:height="240dp"
        android:layout_gravity="center"
        android:background="#00f"/>
    
    <TextView
        android:id="@+id/textView04_id"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:width="200dp"
        android:height="200dp"
        android:layout_gravity="center"
        android:background="#ff0"/>   
        
    
    <TextView
        android:id="@+id/textView05_id"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:width="160dp"
        android:height="160dp"
        android:layout_gravity="center"
        android:background="#f0f"/>
    
    <TextView
        android:id="@+id/textView06_id"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:width="120dp"
        android:height="120dp"
        android:layout_gravity="center"
        android:background="#0ff"/>
    
</FrameLayout>

<resources>
    <color name="color01">#f00</color>
    <color name="color02">#0f0</color>
    <color name="color03">#00f</color>
    <color name="color04">#ff0</color>
    <color name="color05">#f0f</color>
    <color name="color06">#0ff</color>
   
</resources>

package com.kale.framelayout;

import java.util.Timer;
import java.util.TimerTask;
import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.support.v7.app.ActionBarActivity;
import android.widget.TextView;

public class MainActivity extends ActionBarActivity {

    private int currentColor = 0;
    final int[] colors = new int[] {
            R.color.color01,
            R.color.color02,
            R.color.color03,
            R.color.color04,
            R.color.color05,
            R.color.color06
    };
    final int[] names = new int[] {
            R.id.textView01_id,
            R.id.textView02_id,
            R.id.textView03_id,
            R.id.textView04_id,
            R.id.textView05_id,
            R.id.textView06_id,
    };
    TextView[] views = new TextView[names.length];
    Handler handler = new Handler(){
        @Override
        public void handleMessage(Message msg) {
            //表明消息来自本程序
            System.out.println(msg.what);
            if(msg.what == 0x123) {
                for(int i = 0 ;i<names.length;i++) {
                    views[i].setBackgroundResource(colors[(i+currentColor)%names.length]);
                }
                currentColor++;
            }
            super.handleMessage(msg);
        }
    };
    
    
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        for (int i = 0; i < names.length; i++) {
            views[i] = (TextView)findViewById(names[i]);
                    
        }
        //定义一个线程周期性的改变currentColor变量的值
        new Timer().schedule(new TimerTask() {
            @Override
            public void run() {
                //发送一条空消息来通知系统改变颜色
                handler.sendEmptyMessage(0x123);
                System.out.println("发送了条消息");
            }
        }, 0,1000);
        
    }


}