SeekBar通过滑块位置来标识数值，且允许用户拖动滑块来改变值。下面利用三条SeeKBar来调整图片的色度(Hue)、饱和度(Saturation)、亮度(Lum)。

布局文件为一个ImageView，三条SeekBar，布局简单，在此省略。

首先创建一个图像处理类ImageHelper:

public class ImageHelper {

public static Bitmap handleImage(Bitmap bmp, float hue, float saturation, float lum){

Bitmap bm = Bitmap.createBitmap(bmp.getWidth(),bmp.getHeight(), Bitmap.Config.ARGB_8888);

Canvas canvas = new Canvas(bm);

Paint paint = new Paint(Paint.ANTI_ALIAS_FLAG);

ColorMatrix hueMatrix = new ColorMatrix();

hueMatrix.setRotate(0,hue);

hueMatrix.setRotate(1,hue);

hueMatrix.setRotate(2,hue);

ColorMatrix satMatrix = new ColorMatrix();

satMatrix.setSaturation(saturation);

ColorMatrix lumMatrix = new ColorMatrix();

lumMatrix.setScale(lum,lum,lum,1); //涓変釜閫氶亾鍜岄�忔槑搴�

ColorMatrix imgMatrix = new ColorMatrix(); //涓変釜ColorMatrix杩涜铻嶅悎

imgMatrix.postConcat(hueMatrix);

imgMatrix.postConcat(satMatrix);

imgMatrix.postConcat(lumMatrix);

paint.setColorFilter(new ColorMatrixColorFilter(imgMatrix));

canvas.drawBitmap(bmp,0,0,paint);

return bm;

}

}下面是MainActivity中的处理：

/**

* Created by dell on 2016/1/10.

*/

public class MainActivity extends Activity implements SeekBar.OnSeekBarChangeListener {

private TextView textView;

private SeekBar hue_bar, sat_bar, lum_bar;

private Button cancel_btn, ok_btn;

private ImageView hsl_img;

private static int MAX_VALUE = 255;

private static int MID_VALUE = 127;

private float mHue, mSaturation, mLum;

private Bitmap bitmap;

@Override

protected void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.activity_main);

initViews();

}

private void initViews() {

bitmap = BitmapFactory.decodeResource(getResources(), R.drawable.lin);

textView = (TextView) findViewById(R.id.textView);

hue_bar = (SeekBar) findViewById(R.id.seekBar_h);

sat_bar = (SeekBar) findViewById(R.id.seekBar_s);

lum_bar = (SeekBar) findViewById(R.id.seekBar_l);

hsl_img = (ImageView) findViewById(R.id.hsl_img);

hue_bar.setOnSeekBarChangeListener(this);

sat_bar.setOnSeekBarChangeListener(this);

lum_bar.setOnSeekBarChangeListener(this);

hue_bar.setMax(MAX_VALUE); //设置最大值

sat_bar.setMax(MAX_VALUE);

lum_bar.setMax(MAX_VALUE);

hue_bar.setProgress(MID_VALUE); //设置初始值

sat_bar.setProgress(MID_VALUE);

lum_bar.setProgress(MID_VALUE);

hsl_img.setImageBitmap(bitmap);

}

@Override

public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) {

switch (seekBar.getId()){

case R.id.seekBar_h:

mHue = (progress - MID_VALUE) * 1.0F / MID_VALUE * 180;

break;

case R.id.seekBar_s:

mSaturation = progress * 1.0F / MID_VALUE;

break;

case R.id.seekBar_l:

mLum = progress * 1.0F / MID_VALUE;

break;

}

hsl_img.setImageBitmap(ImageHelper.handleImage(bitmap,mHue,mSaturation,mLum));

}

@Override

public void onStartTrackingTouch(SeekBar seekBar) {

}

@Override

public void onStopTrackingTouch(SeekBar seekBar) {

}

}SeekBar需要绑定的是

setOnSeekBarChangeListener来实现对拖动位置的改变，里面有三个方法，主要需要重写的是

void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser)progress代表监测到的当前滑动位置。

最后，附上实验效果，打开界面，并进行调节：