一、线程循环启动，直到满足条件
1、定义Handler
【Android|循环线程和Handler消息执行】class MainHandler extends Handler
{
public MainHandler(){}
public MainHandler(Looper L)
{
super(L);
}
public void handleMessage(MessagenMsg)
{
switch(nMsg.what)
{
case 0:
Log.i(TAG,"nMsg.what =0");
stockbroadcast();
//发送STOCK
break;
}
}
}
2、OnCreate中启动线程
Looper lop = Looper.myLooper();
mMainHandler=new MainHandler(lop);
runnable=new Runnable(){
@Override
public void run() {
if(isDataReady())//满足条件
{//发送股票的广播
stockbroadcast();
//发送股票的广播
}
else
{//重新执行
Log.i(TAG,"postDelayed");
mMainHandler.postDelayed(this, 100);
//延时100ms
}
}
};
mMainHandler.postDelayed(runnable, 100);
二、Handler发送msg执行操作
1、定义Handler
class MainHandler extends Handler
{
public MainHandler(){}
public MainHandler(Looper L)
{
super(L);
}
public void handleMessage(MessagenMsg)
{
switch(nMsg.what)
{
case 0:
Log.i(TAG,"nMsg.what =0");
stockbroadcast();
//发送STOCK
break;
}
2、OnCreate中定义对象
MainHandlermMainHandler;
//定义Handler对象
3、发送消息：
mMainHandler.sendEmptyMessage(0);
