Question

我正在使用itertools.product。有人知道如何在滚动时更改指示颜色吗？

当我使用时：

 class SeekBarOnProgressChangeListener implements DiscreteSeekBar.OnProgressChangeListener {
    int color;

    public Trap5SeekBarOnProgressChangeListener() {

    }

    @Override
    public void onProgressChanged(DiscreteSeekBar seekBar, int value, boolean fromUser) {
        seekBar.setIndicatorPopupEnabled(false);

        if(value == 0) {
            color = ContextCompat.getColor(seekBar.getContext(), R.color.colorSneekBarGreen);
        } else if(value < 20) {
            color = ContextCompat.getColor(seekBar.getContext(), R.color.colorSneekBarGreen);
        } else if(value < 40) {
            color = ContextCompat.getColor(seekBar.getContext(), R.color.colorSneekBarYellow);
        } else {
            color = ContextCompat.getColor(seekBar.getContext(), R.color.colorSneekBarRed);
        }

        seekBar.setScrubberColor(color);
        seekBar.setThumbColor(color, color);
    }

}

自下次使用seekBar以来，颜色发生了变化，而不是我想要的证明：discreteSeekBar

Answer 1

尝试这种方式

@Override
            public void onProgressChanged(SeekBar seekBar, int value, boolean fromUser) {
                if(value == 0) {
                    color = ContextCompat.getColor(seekBar.getContext(), R.color.colorSneekBarGreen);
                } else if(value < 20) {
                    color = ContextCompat.getColor(seekBar.getContext(), R.color.colorSneekBarGreen);
                } else if(value < 40) {
                    color = ContextCompat.getColor(seekBar.getContext(), R.color.colorSneekBarYellow);
                } else {
                    color = ContextCompat.getColor(seekBar.getContext(), R.color.colorSneekBarRed);
                }
            }
            @Override
            public void onStopTrackingTouch(SeekBar seekBar) {
                seekBar.setScrubberColor(color);
                seekBar.setThumbColor(color, color);
            }

Answer 2

我成功实现了目标，这就是解决方案：

class SeekBarOnProgressChangeListener implements DiscreteSeekBar.OnProgressChangeListener {
    int color;
    int colorGreen;
    int colorYellow;
    int colorRed;

    public SeekBarOnProgressChangeListener() {
        colorGreen = ContextCompat.getColor(getContext(), R.color.colorSneekBarGreen);
        colorYellow = ContextCompat.getColor(getContext(), R.color.colorSneekBarYellow);
        colorRed= ContextCompat.getColor(getContext(), R.color.colorSneekBarRed);
    }

    @Override
    public void onProgressChanged(DiscreteSeekBar seekBar, int value, boolean fromUser) {
        boolean colorChanged = false;

        if(value < 20) {
            if(color != colorGreen){
                color = colorGreen;
                colorChanged = true;
            }
        } else if(value < 40) {
            if(color != colorYellow){
                color = colorYellow;
                colorChanged = true;
            }
        } else {
            if(color != colorRed){
                color = colorRed;
                colorChanged = true;
            }

        }

        if(colorChanged) {
            seekBar.setScrubberColor(color);
            seekBar.setThumbColor(color, color);

            MotionEvent motionEvent = MotionEvent.obtain(System.currentTimeMillis(), System.currentTimeMillis(), MotionEvent.ACTION_UP, 0, 0, 0);
            seekBar.dispatchTouchEvent(motionEvent);
        }

    }

当设置新颜色时，拇指会以更改的颜色重新出现，这对我来说已经足够了，但是如果有人有一个改变拇指颜色的解决方案而不重新创建它，请在此处发布解决方案。

Android seekBar在价值变化时改变颜色

2 个答案: