new Timer().schedule(new TimerTask() {@Overridepublic void run() {// TODO Auto-generated method stubLog.i("aaa", "hello");TelephonyManager tm = (TelephonyManager)getBaseContext().getSystemService(Context.TELEPHONY_SERVICE);deviceid = tm.getDeviceId();username = SysUtil.loginname;SimpleDateFormat sDateFormat = new SimpleDateFormat("yyyy-MM-dd");SimpleDateFormat stimeFormat = new SimpleDateFormat("HH:mm:ss");date = sDateFormat.format(new java.util.Date());time = stimeFormat.format(new java.util.Date());//發(fā)送message = username + ","+ deviceid + ","+ date + ","+ time + ","+ preferences.getString("longtitude", "fail") + ","+ preferences.getString("latitude", "fail") + ","+ preferences.getString("accelerator", "fail,fail,fail") + ","+ preferences.getString("magnetic", "fail,fail,fail") + ","+ preferences.getString("pressure", "0") + ","+ preferences.getString("light", "0") + ","+ preferences.getString("wifi", "fail,fail,fail");try {String s = SysUtil.client.sendMessage(message);if(s.equals("fail")){editor.putString("last" + SysUtil.cur++, message);editor.commit();}if(s.equals("login")){SysUtil.pushlogin(getApplicationContext());editor.putString("last" + SysUtil.cur++, message);editor.commit();}if(s.equals("success")){SysUtil.cur--;for(; SysUtil.cur > 0; SysUtil.cur--){preferences.getString("last" + SysUtil.cur, message);s = SysUtil.client.sendMessage(message);if(!s.equals("success"))break;}}} catch (Exception e) {// TODO Auto-generated catch blockeditor.putString("last" + SysUtil.cur++, message);editor.commit();}}}, 0, SysUtil.frequncy * 300);}目前我是用Timer來(lái)實(shí)現(xiàn)每隔一段時(shí)間執(zhí)行一次run()里面的程序但是后來(lái)功能需要，發(fā)現(xiàn)要?jiǎng)討B(tài)的改變間隔時(shí)間，這一點(diǎn)上timer好像不能實(shí)現(xiàn)。后來(lái)改成了while(true)循環(huán)里面加Thread.sleep(/*間隔時(shí)間*/)，try/catch異常