package org.crazyit.framelayout;import java.util.Timer;
import java.util.TimerTask;import android.app.Activity;
import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.util.Log;
import android.widget.TextView;/**
* Description:
* <br/>site: <a href="http://www.crazyit.org">crazyit.org</a>
* <br/>Copyright (C), 2001-2012, Yeeku.H.Lee
* <br/>This program is protected by copyright laws.
* <br/>Program Name:
* <br/>Date:
* @author Yeeku.H.Lee [email protected]
* @version 1.0
*/
public class FrameLayoutTest extends Activity
{
private int currentColor = 0;
//定义一个颜色数组
final int[] colors = new int[]
{
R.color.color7,
R.color.color6,
R.color.color5,
R.color.color4,
R.color.color3,
R.color.color2,
R.color.color1,
};
final int[] names = new int[]
{
R.id.View01,
R.id.View02,
R.id.View03,
R.id.View04,
R.id.View05,
R.id.View06,
R.id.View07
};
TextView[] views = new TextView[7];
@Override
public void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
for (int i = 0 ; i < 7 ; i++)
{
views = (TextView)findViewById(names);
}
final Handler handler = new Handler()
{
@Override
public void handleMessage(Message msg)
{
//表明消息来自本程序所发送
if(msg.what == 0x1122)
{
//依次改变7个TextView的背景色
for(int i = 0 ; i < 7 - currentColor ; i++)
{
views.setBackgroundResource(colors[i + currentColor]);
}
// for(int i = 7 - currentColor , j = 0 ; i < 7 ; i++ ,j++)
// {
//
// views.setBackgroundResource(colors[j]);
// }
//
// for(int j=0;j<currentColor;j++)
// {
// views[views.length-j-1].setBackgroundColor(colors[currentColor-j-1]);
// }
}
super.handleMessage(msg);
}
};
//定义一个线程周期性的改变currentColor变量值
new Timer().schedule(new TimerTask()
{
@Override
public void run()
{
currentColor++;
if(currentColor >= 6)
{
currentColor = 0;
}
//发送一条消息通知系统改变7个TextView组件的背景色
Message m = new Message();
//给该消息定义一个标识
m.what = 0x1122;
handler.sendMessage(m);
}
}, 0 , 100);
}
}
import java.util.TimerTask;import android.app.Activity;
import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.util.Log;
import android.widget.TextView;/**
* Description:
* <br/>site: <a href="http://www.crazyit.org">crazyit.org</a>
* <br/>Copyright (C), 2001-2012, Yeeku.H.Lee
* <br/>This program is protected by copyright laws.
* <br/>Program Name:
* <br/>Date:
* @author Yeeku.H.Lee [email protected]
* @version 1.0
*/
public class FrameLayoutTest extends Activity
{
private int currentColor = 0;
//定义一个颜色数组
final int[] colors = new int[]
{
R.color.color7,
R.color.color6,
R.color.color5,
R.color.color4,
R.color.color3,
R.color.color2,
R.color.color1,
};
final int[] names = new int[]
{
R.id.View01,
R.id.View02,
R.id.View03,
R.id.View04,
R.id.View05,
R.id.View06,
R.id.View07
};
TextView[] views = new TextView[7];
@Override
public void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
for (int i = 0 ; i < 7 ; i++)
{
views = (TextView)findViewById(names);
}
final Handler handler = new Handler()
{
@Override
public void handleMessage(Message msg)
{
//表明消息来自本程序所发送
if(msg.what == 0x1122)
{
//依次改变7个TextView的背景色
for(int i = 0 ; i < 7 - currentColor ; i++)
{
views.setBackgroundResource(colors[i + currentColor]);
}
// for(int i = 7 - currentColor , j = 0 ; i < 7 ; i++ ,j++)
// {
//
// views.setBackgroundResource(colors[j]);
// }
//
// for(int j=0;j<currentColor;j++)
// {
// views[views.length-j-1].setBackgroundColor(colors[currentColor-j-1]);
// }
}
super.handleMessage(msg);
}
};
//定义一个线程周期性的改变currentColor变量值
new Timer().schedule(new TimerTask()
{
@Override
public void run()
{
currentColor++;
if(currentColor >= 6)
{
currentColor = 0;
}
//发送一条消息通知系统改变7个TextView组件的背景色
Message m = new Message();
//给该消息定义一个标识
m.what = 0x1122;
handler.sendMessage(m);
}
}, 0 , 100);
}
}
代码有点混乱 currentColor确实没更新
{
views = (TextView)findViewById(names);
}这个这样写有何意义