[問題] 背景程式偵測異狀傳至前景印出

[glossor (索隆)]

最近一直有個問題解不開

想要寫個app

每秒在背景parse一次網頁的某個值 當此值太大時在前景印出"過重"

問題出在 Service用了broadcast回給前景 卻無法印出資料在前景的textview



不知道以下的程式邏輯對嗎

在Activity

    private void registerTimerReceiver(){
        IntentFilter filter = new IntentFilter(NickyService.TIMER_ACTION);
        receiver = new TimerReceiver();
        registerReceiver(receiver,filter);
    }
    private class TimerReceiver extends BroadcastReceiver{
        public void onReceive(Context context, Intent intent) {
                setContentView(R.layout.main);
                String outcome = "Too Heavy";
                mTextView = (TextView)findViewById(R.id.info);
                mTextView.setText(outcome);
        }

    }




在Service


  public void onStart(Intent intent, int startId) {
        handler.postDelayed(showState, 1000);
        super.onStart(intent, startId);
    }
    @Override
    public void onDestroy() {
        handler.removeCallbacks(showState);
        super.onDestroy();
    }
    private Runnable showState = new Runnable() {
        public void run() {
                sendBroadcast(new Intent(State));
            }
        }
    }


感謝各位

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