Android 多线程1

        bt1.setOnClickListener(new Button.OnClickListener(){
@Override
public void onClick(View arg0) {
// TODO Auto-generated method stub
new Thread()
{
public void run()
{
        try {
copyFile(new File("/sdcard/Video/bx1.mp4"),new File("/sdcard/Video/bx11.file"));
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}.start();
}
        });
       
        bt2.setOnClickListener(new Button.OnClickListener(){
@Override
public void onClick(View arg0) {
// TODO Auto-generated method stub
File exitF = new File("/sdcard/Video/bx11.file");
if(exitF.exists())
{
exitF.delete();
}
}   
        });
      
new Thread()
{
public void run()
{
try {
while(true)
{
sleep(3000);

String remainSD = String.valueOf(getSD())+"MB";

Bundle bundle = new Bundle();
bundle.putString("remainSD", remainSD);

Message msg = new Message();
msg.what=6;
msg.setData(bundle);

handler.sendMessage(msg);
}
} catch (InterruptedException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}

}
}.start();