自定义Seekbar

效果图：

好了直接上代码：

1：先看布局文件：

关键点：         android:id="@+id/SeekBar01"
        android:layout_width="fill_parent"
        android:layout_height="40px"
        android:maxHeight="40px"
       android:minHeight="40px"
        android:max="100"
        android:progress="50"
        android:secondaryProgress="0"
        android:progressDrawable="@drawable/effect_seekbar_style"
       android:thumb="@drawable/slide_one"
       android:thumbOffset="20px">

看看这个style：android:progressDrawable="@drawable/effect_seekbar_style"

好了布局就已经完成了，只要在Activity里面继承implements SeekBar.OnSeekBarChangeListener 实现几个方法去改变响应的值就ok，是不是很简单呀！

上代码看看吧：

public class EffectSettingPopupModify extends RotateLayout implements SeekBar.OnSeekBarChangeListener {private OnPreferenceChangedListener mListener;    protected CameraPicker mCameraPicker;    private SeekBar seekBar01,seekBar02,seekBar03,seekBar04;    private ComboPreferences mPreferences;    private final int MAX = 2;    private final int SEC_MAX = 1;    private final int MIDDLE = 0;    private final int SEC_MIN = -1;    private final int MIN = -2;    private int value_temp;        public void setListener(OnPreferenceChangedListener listener) {        mListener = listener;        if (mCameraPicker != null) mCameraPicker.setListener(listener);    }public EffectSettingPopupModify(Context context, AttributeSet attrs) {super(context, attrs);// TODO Auto-generated constructor stub}public void initEffectSettingPopupModify(ComboPreferences preferences){mPreferences = preferences;}private SeekBar[] mSeekBar = new SeekBar[4];public void setSeekBar(int which,String progress){int temp = Integer.valueOf(progress);switch(temp){case MAX:mSeekBar[which].setProgress(100);break;case SEC_MAX:mSeekBar[which].setProgress(75);break;case MIDDLE:mSeekBar[which].setProgress(50);break;case SEC_MIN:mSeekBar[which].setProgress(25);break;case MIN:mSeekBar[which].setProgress(0);break;}}private final String[] value = new String[]{"-2","-1","0","1","2"};private String getValue(int progress){int temp = progress/25;return value[temp];}@Overrideprotected void onFinishInflate() {// TODO Auto-generated method stubsuper.onFinishInflate(); seekBar01 = (SeekBar) this.findViewById(R.id.SeekBar01);     seekBar02 = (SeekBar) this.findViewById(R.id.SeekBar02);     seekBar03 = (SeekBar) this.findViewById(R.id.SeekBar03);     seekBar04 = (SeekBar) this.findViewById(R.id.SeekBar04);     seekBar01.setOnSeekBarChangeListener(this);     seekBar02.setOnSeekBarChangeListener(this);     seekBar03.setOnSeekBarChangeListener(this);     seekBar04.setOnSeekBarChangeListener(this);     mSeekBar[0] = seekBar01;     mSeekBar[1] = seekBar02;     mSeekBar[2] = seekBar03;     mSeekBar[3] = seekBar04;}@Overridepublic void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) {// TODO Auto-generated method stubswitch(seekBar.getId()){case R.id.SeekBar01:value_temp = progress;mPreferences.edit().putString(CameraSettings.KEY_BRIGHTNESS, getValue(value_temp)).commit();break;case R.id.SeekBar02:value_temp = progress;mPreferences.edit().putString(CameraSettings.KEY_CONTRAST, getValue(value_temp)).commit();break;case R.id.SeekBar03:value_temp = progress;mPreferences.edit().putString(CameraSettings.KEY_SATURATION, getValue(value_temp)).commit();break;case R.id.SeekBar04:value_temp = progress;mPreferences.edit().putString(CameraSettings.KEY_SHARPNESS, getValue(value_temp)).commit();break;}mListener.onSharedPreferenceChanged();}@Overridepublic void onStartTrackingTouch(SeekBar seekBar) {// TODO Auto-generated method stub}@Overridepublic void onStopTrackingTouch(SeekBar seekBar) {// TODO Auto-generated method stubswitch(seekBar.getId()){case R.id.SeekBar01:mPreferences.edit().putString(CameraSettings.KEY_BRIGHTNESS, getValue(value_temp)).commit();break;case R.id.SeekBar02:mPreferences.edit().putString(CameraSettings.KEY_CONTRAST, getValue(value_temp)).commit();break;case R.id.SeekBar03:mPreferences.edit().putString(CameraSettings.KEY_SATURATION, getValue(value_temp)).commit();break;case R.id.SeekBar04:mPreferences.edit().putString(CameraSettings.KEY_SHARPNESS, getValue(value_temp)).commit();break;}mListener.onSharedPreferenceChanged();}   }

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