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);       }            };   }   }