Android手机显示多彩霓虹灯效果 Android手机显示多彩霓虹灯效果

<?xml version="1.0" encoding="utf-8"?> 
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" 
  xmlns:tools="http://schemas.android.com/tools" 
  android:id="@+id/linearLayout1" 
  android:layout_width="fill_parent" 
  android:layout_height="fill_parent" 
  android:orientation="vertical" > 
   
</LinearLayout> 

<?xml version="1.0" encoding="utf-8"?> 
<resources> 
  <color name="color1">#ffff0000</color> 
  <color name="color2">#ffff6600</color> 
  <color name="color3">#ffffff00</color> 
  <color name="color4">#ff00ff00</color> 
  <color name="color5">#ff00ffff</color> 
  <color name="color6">#ff0000ff</color> 
  <color name="color7">#ff6600ff</color> 
</resources> 

package com.example.test;  
  
import java.util.Random; 
 
 
import android.app.Activity; 
import android.os.Bundle; 
import android.os.Handler; 
import android.os.Message; 
import android.view.Window; 
import android.widget.LinearLayout; 
import android.widget.TextView; 
  
public class MainActivity extends Activity{  
   private Handler handler;//Handler对象 
   private static LinearLayout linearLayout;//整体布局 
   public static TextView[] tv=new TextView[14];//TextView数组 
   int [] bgColor=new int[]{R.color.color1,R.color.color2,R.color.color3, 
       R.color.color4,R.color.color5,R.color.color6,R.color.color7};//使用颜色资源 
   private int index=0;//当前颜色值 
  @Override  
  public void onCreate(Bundle savedInstanceState) {  
    super.onCreate(savedInstanceState);  
    requestWindowFeature(Window.FEATURE_NO_TITLE);//设置全屏显示 
    setContentView(R.layout.main); 
    
    //获取线性布局管理器 
    linearLayout=(LinearLayout)findViewById(R.id.linearLayout1); 
    //获取屏幕的高度 
    int height=this.getResources().getDisplayMetrics().heightPixels; 
    for (int i = 0; i < tv.length; i++) { 
      tv[i]=new TextView(this);//创建一个文本框对象 
      //设置文本框的宽度 
      tv[i].setWidth(this.getResources().getDisplayMetrics().widthPixels); 
      //设置文本框的高度 
      tv[i].setHeight(height/tv.length); 
      //将TextView组件添加到线性布局管理器中 
      linearLayout.addView(tv[i]); 
    } 
     
    Thread t=new Thread(new Runnable(){ 
      @Override 
      public void run() { 
         while(!Thread.currentThread().isInterrupted()){ 
           Message m=handler.obtainMessage();//获取一个Message 
           m.what=0x101;//设置消息标识 
           handler.sendMessage(m);//发送消息 
           try { 
            Thread.sleep(new Random().nextInt(1000));//休眠1秒钟 
          } catch (InterruptedException e) { 
            // TODO Auto-generated catch block 
            e.printStackTrace();//输出异常信息 
          } 
         } 
      } 
    }); 
    t.start();//开启线程 
     
    handler=new Handler(){ 
 
 
      @Override 
      public void handleMessage(Message msg) { 
        int temp=0; 
        if(msg.what==0x101){ 
          for (int i = 0; i < tv.length; i++) { 
            temp=new Random().nextInt(bgColor.length);//产生一个随机数 
            //去掉重复的并相邻的颜色 
            if(index==temp){ 
              temp++; 
              if(temp==bgColor.length){ 
                temp=0; 
              } 
            } 
            index=temp; 
            //为文本框设置背景 
            tv[i].setBackgroundColor(getResources().getColor(bgColor[index])); 
          } 
        } 
        super.handleMessage(msg); 
      } 
       
    }; 
  } 
 
 
}