Question

我需要在点击按钮时重置android步骤计数器。我知道，当传感器被激活时，该值将继续增加而不会重置为零，直到系统重新启动。

我试过这个，但它只显示0;

SharedPreferences prefs = getActivity().getSharedPreferences(MY_PREFS, MODE_PRIVATE);
        stepsAtReset = prefs.getInt("stepsAtReset", 0);

btnStart.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {

                isPaused = false;
                isStopped = false;
                activityRunning = true;

                //Disable the start and pause button
                btnStart.setEnabled(false);
                btnResume.setEnabled(false);
                //Enabled the pause and stop button
                btnPause.setEnabled(true);
                btnStop.setEnabled(true);

                stepsAtReset = stepsInSensor;
                SharedPreferences.Editor editor = getActivity().getSharedPreferences(MY_PREFS, MODE_PRIVATE).edit();
                editor.putInt("stepsAtReset", stepsAtReset);
                editor.commit();
                // you can now display 0:
                count.setText(String.valueOf(0));

            }
        });


   @Override
    public void onSensorChanged(SensorEvent event) {

        if (isPaused || isStopped) {
            Log.d("MAINFRAG", "pause or stopped");

        } else{
            if(activityRunning){
                count.setText(String.valueOf(event.values[0]));
                int stepsSinceReset = stepsInSensor - stepsAtReset;

                count.setText(String.valueOf(stepsSinceReset));
            }else{
                event.values[0] = 0;
            }

        }
    }

Answer 1

首先，您需要将数据保存在pref中，然后需要将var重置为零

            editor.commit();
            stepsAtReset = 0
            count.setText(String.valueOf(stepsAtReset));`

重置Android步骤计数器

1 个答案: