如何为均衡器布局？

Question

这是我用来设置 5 波段均衡器 的代码，但我想要一个支持数字的 Layout设备支持的均衡器频段。

现在我硬编码均衡器频段的大小，因为我不确定如何创建布局用于均衡器频带的非常量值。

这是我想使用的代码：

equalizer.getNumberOfBands(); //it tells you the number of equalizer in device.

但是如果设备支持 +10 个均衡器频段，我如何才能在屏幕上显示这些频段？

创建均衡器的代码

private void setupEqualizer(){

    mEqualizer = new Equalizer(0, mediaPlayer.getAudioSessionId());

    final short lowerEqualizerBandLevel = mEqualizer.getBandLevelRange()[0];
    final short upperEqualizerBandLevel = mEqualizer.getBandLevelRange()[1];

    for (short i = 0; i < 5; i++){
        final short equalizerBandIndex = i;

        int freq_range = mEqualizer.getCenterFreq(equalizerBandIndex);

        verticalSeekbar[i].setMax(upperEqualizerBandLevel - lowerEqualizerBandLevel);
        verticalSeekbar[i].setProgress(mEqualizer.getBandLevel(equalizerBandIndex));

        verticalSeekbar[i].setOnSeekBarChangeListener(new SeekBar.OnSeekBarChangeListener() {
            @Override
            public void onProgressChanged(SeekBar seekBar, int progress, boolean b) {
                mEqualizer.setBandLevel(equalizerBandIndex, (short) (progress + lowerEqualizerBandLevel ));
                slider_value[equalizerBandIndex].setText(String.valueOf((progress + lowerEqualizerBandLevel) / 100 + " dB"));
            }

            @Override
            public void onStartTrackingTouch(SeekBar seekBar) {

            }

            @Override
            public void onStopTrackingTouch(SeekBar seekBar) {

            }
        });
        slider_labels[i].setText(formatBandLabel(freq_range));

        float scale2 = getResources().getDisplayMetrics().density;
        int dpAsPixels2 = (int) (8*scale2 + 0.5f);

    }
    setupEqSpinner();
}

Answer 1

You need to use Vertical SeekBar as told by Nilesh

equalizer.getNumberOfBands() // it tells the number of equalizer ..

创建一个 LinearLayout(Horizontal) 并在 for 循环中添加 Vertical Seekbar (numberOfBands)..

如何为均衡器布局？

How to make a layout for the equalizer?

java

android

equalizer