VerticalSeekbar自适应屏幕旋转响应

网上有很多VerticalSeekbar,继承AbsSeekBar, 适用于UI固定的情况；
如果程序要自适应屏幕旋转，竖屏的时候用水平seekbar, 垂直的时候用VerticalSeekBar, 会出现旋转之后seekbar是两个不同的id, onProgressChanged无法收到 VerticalSeekbar 发过来的数据;

VerticalSeekbar代码如下：`

public class VerticalSeekBar extends SeekBar {

private String TAG = "VerticalSeekBar";public VerticalSeekBar(Context context) {    super(context);    // TODO Auto-generated constructor stub}public VerticalSeekBar(Context context, AttributeSet attrs) {    super(context, attrs);    // TODO Auto-generated constructor stub}public VerticalSeekBar(Context context, AttributeSet attrs, int defStyle) {    super(context, attrs, defStyle);    // TODO Auto-generated constructor stub}//监听器用父类的;private SeekBar.OnSeekBarChangeListener mOnSeekBarChangeListener;public void setOnSeekBarChangeListener(SeekBar.OnSeekBarChangeListener l) {    mOnSeekBarChangeListener = l;}void onStartTrackingTouch() {    if (mOnSeekBarChangeListener != null) {        mOnSeekBarChangeListener.onStartTrackingTouch(this);    }}void onStopTrackingTouch() {    if (mOnSeekBarChangeListener != null) {        mOnSeekBarChangeListener.onStopTrackingTouch(this);    }}void onProgressRefresh(float scale, boolean fromUser) {    Drawable thumb = mThumb;    if (thumb != null) {        setThumbPos(getHeight(), thumb, scale, Integer.MIN_VALUE);        invalidate();    }    if (mOnSeekBarChangeListener != null) {        mOnSeekBarChangeListener.onProgressChanged(this, getProgress(),                fromUser);    }}private void setThumbPos(int w, Drawable thumb, float scale, int gap) {    //Log.e(TAG, "setThumbPos scale = " + scale + ", w = " + w );    int available = w - getPaddingLeft() - getPaddingRight();    int thumbWidth = thumb.getIntrinsicWidth();    int thumbHeight = thumb.getIntrinsicHeight();    available -= thumbWidth;    available += getThumbOffset() * 2;    int thumbPos = (int) (scale * available);    int topBound, bottomBound;    if (gap == Integer.MIN_VALUE) {        Rect oldBounds = thumb.getBounds();        topBound = oldBounds.top;        bottomBound = oldBounds.bottom;    } else {        topBound = gap;        bottomBound = gap + thumbHeight;    }    thumb.setBounds(thumbPos, topBound, thumbPos + thumbWidth, bottomBound);}private Drawable mThumb;@Overridepublic void setThumb(Drawable thumb) {    mThumb = thumb;    super.setThumb(thumb);}protected void onSizeChanged(int w, int h, int oldw, int oldh) {            super.onSizeChanged(h, w, oldh, oldw);        }     @Override    protected synchronized void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {            super.onMeasure(heightMeasureSpec, widthMeasureSpec);           setMeasuredDimension(getMeasuredHeight(), getMeasuredWidth());    //宽高互换    } protected void onDraw(Canvas c) {                c.rotate(-90);                c.translate(-getHeight(),0);         super.onDraw(c);    }     @Override    public boolean onTouchEvent(MotionEvent event) {            if (!isEnabled()) {                    return false;           }             switch (event.getAction()) {                    case MotionEvent.ACTION_DOWN:                    case MotionEvent.ACTION_MOVE:                    case MotionEvent.ACTION_UP:                            int i=0;                           i=getMax() - (int) (getMax() * event.getY() / getHeight());                            setProgress(i);                            onSizeChanged(getWidth(), getHeight(), 0, 0);                            break;                     case MotionEvent.ACTION_CANCEL:                            break;            }            return true;    }

}

MainActivity代码如下：
public class MainActivity extends Activity implements
SeekBar.OnSeekBarChangeListener

{
private Context m_fadbal_context;

private String TAG = "TEST";private TextView m_Balance_TextView;private TextView m_Fader_TextView;private SeekBar m_FaderSeekBar;private SeekBar m_BalanceSeekBar;// ------private RelativeLayout m_floatLayout;private RelativeLayout m_top_title_Layout;private  View m_float_view;private WindowManager windowManager;private LayoutParams layoutParams, layoutParams_center;private int m_nBallWidth,  m_nBallRadius;private boolean m_bLayoutTouchDown = false;private static boolean m_bFloatViewDisplayed = false;static float y0 = 0.0f, x0 = 0.0f;float delt_x = 0.0f, delt_y = 0.0f;private int m_nStatusBarHeight = 0;int m_nViewMove_x = 0, m_nViewMove_y = 0;public static boolean m_bCenterWinDisplayed = false;private float m_center_x = 0.0f;private float m_center_y = 0.0f;private float m_action_w = 0.0f;private float m_action_h = 0.0f;private float m_action_left = 0.0f;private float m_action_top = 0.0f;private float m_action_right = 0.0f;private float m_action_bottom = 0.0f;private float m_fMoveStep = 0.0f;private static int m_nFader = 10;private static int m_nBalance = 10;@Overrideprotected void onCreate(Bundle savedInstanceState) {    super.onCreate(savedInstanceState);    initActivity();}public void onStart() {    super.onStart();}@Overridepublic synchronized void onResume() {    super.onResume();    getFloatLayoutRect();}@Overridepublic synchronized void onPause() {    super.onPause();}public void initActivity() {    setContentView(R.layout.test);    m_fadbal_context = this;    m_Balance_TextView = (TextView) findViewById(R.id.balance_value);    m_Fader_TextView = (TextView) findViewById(R.id.fader_value );    m_FaderSeekBar = (SeekBar) findViewById(R.id.fader_seek_bar);    m_BalanceSeekBar = (SeekBar) findViewById(R.id.balance_seek_bar);    m_FaderSeekBar.setMax(20);    m_FaderSeekBar.setProgress( m_nFader );    m_BalanceSeekBar.setMax(20);    m_BalanceSeekBar.setProgress( m_nBalance );    //Log.e(TAG, "rec: fad =" + m_nFader + ", bal = " + m_nBalance );    m_FaderSeekBar.setOnSeekBarChangeListener((OnSeekBarChangeListener) this);    m_BalanceSeekBar.setOnSeekBarChangeListener((OnSeekBarChangeListener) this);    // ------------------------------------------------------------------------------------    windowManager = (WindowManager) this.getSystemService(WINDOW_SERVICE);    if( m_float_view == null )        m_float_view = LayoutInflater.from(this).inflate(R.layout.floating, null);    Bitmap m_float_view_bmp = BitmapFactory.decodeResource(            m_fadbal_context.getResources(), R.drawable.ball);    m_nBallWidth = m_float_view_bmp.getWidth();    m_nBallRadius = (int) ( m_nBallWidth >> 1 );    m_float_view_bmp.recycle();    /*     * LayoutParams.TYPE_SYSTEM_ERROR：保证该悬浮窗所有View的最上层     * LayoutParams.FLAG_NOT_FOCUSABLE:该浮动窗不会获得焦点，但可以获得拖动     * PixelFormat.TRANSPARENT：悬浮窗透明     */    layoutParams = new LayoutParams(LayoutParams.WRAP_CONTENT,            LayoutParams.WRAP_CONTENT, LayoutParams.TYPE_SYSTEM_ERROR,            LayoutParams.FLAG_NOT_FOCUSABLE, PixelFormat.TRANSPARENT);    layoutParams.gravity = Gravity.LEFT | Gravity.TOP;    m_top_title_Layout = (RelativeLayout) findViewById(R.id.setting_top_bar_layout);    m_floatLayout = (RelativeLayout) findViewById(R.id.float_layout);    m_floatLayout.setOnTouchListener(new OnTouchListener()     {        public boolean onTouch(View v, MotionEvent event) {            layoutParams.gravity = Gravity.LEFT | Gravity.TOP;            int eventaction = event.getAction();            switch (eventaction) {                case MotionEvent.ACTION_DOWN:                 {                    m_nViewMove_x = (int) event.getRawX();                    m_nViewMove_y = (int) event.getRawY()  - m_nStatusBarHeight;                    if( m_nViewMove_x > m_action_left && m_nViewMove_x < m_action_right                            && m_nViewMove_y > m_action_top  && m_nViewMove_y < m_action_bottom )                    {                        refreshView( m_nViewMove_x, m_nViewMove_y );                        m_nBalance = (int)( ( m_nViewMove_x - m_action_left ) / m_fMoveStep );                        m_nFader = (int)( 20 - (  m_nViewMove_y  - m_action_top )  / m_fMoveStep ) ;                        updateFaderSeekBarText();                        m_FaderSeekBar.setProgress( m_nFader  );                        updateBalanceSeekBarText();                        m_BalanceSeekBar.setProgress(m_nBalance);                    }                }                    break;            }            return false;        }    });    m_float_view.setOnTouchListener(new OnTouchListener()     {        public boolean onTouch(View v, MotionEvent event) {            layoutParams.gravity = Gravity.LEFT | Gravity.TOP;            int eventaction = event.getAction();            switch (eventaction) {                case MotionEvent.ACTION_DOWN: // 按下事件，记录按下时手指在悬浮窗的XY坐标值                {                    m_bLayoutTouchDown = true;                }                    break;                case MotionEvent.ACTION_MOVE:                 {                    m_nViewMove_x = (int) event.getRawX();                    m_nViewMove_y = (int) event.getRawY()  - m_nStatusBarHeight;                    if( m_nViewMove_x < m_action_left )                        m_nViewMove_x = (int)m_action_left;                    if( m_nViewMove_x > m_action_right )                        m_nViewMove_x = (int)m_action_right;                    if( m_nViewMove_y < m_action_top )                        m_nViewMove_y = (int)m_action_top;                    if( m_nViewMove_y > m_action_bottom )                        m_nViewMove_y = (int)m_action_bottom;                    refreshView( m_nViewMove_x, m_nViewMove_y );                    // 转成fader/balance                    m_nBalance = (int)( ( m_nViewMove_x - m_action_left ) / m_fMoveStep );                    m_nFader = (int)( 20 - (  m_nViewMove_y  - m_action_top )  / m_fMoveStep ) ;                    updateFaderSeekBarText();                    m_FaderSeekBar.setProgress( m_nFader  );                    updateBalanceSeekBarText();                    m_BalanceSeekBar.setProgress(m_nBalance);                }                    break;                case MotionEvent.ACTION_UP: {                    m_bLayoutTouchDown = false;                }                    break;                }            return true;        }    });    // -----------------------------------------------------------------------}private Timer m_IdelTimer = null;private MyIdelTimerTask m_IdelTimerTask = null;private long m_lInterval = 200;private final int GET_PARAMS = 0x20;protected class MyIdelTimerTask extends TimerTask {    @Override    public void run() {        // TODO Auto-generated method stub        mHandler.sendEmptyMessage(GET_PARAMS);    }} // end classprivate Handler mHandler = new Handler() {    @Override    public void handleMessage(Message msg) {        // TODO Auto-generated method stub        switch (msg.what) {        case GET_PARAMS: {             if( m_nStatusBarHeight == 0 ){                      View rootView  = m_floatLayout.getRootView();                      Rect r = new Rect();                      rootView.getWindowVisibleDisplayFrame(r);                      m_nStatusBarHeight = r.top;                  }              int top_title_height = m_top_title_Layout.getHeight();            int float_top = m_floatLayout.getTop();            int float_bottom = m_floatLayout.getBottom();            int float_left = m_floatLayout.getLeft();            int float_right = m_floatLayout.getRight();            int canvas_w = float_right - float_left;            int canvas_h = float_bottom - float_top;            m_center_x = canvas_w / 2.0f;            m_center_y = canvas_h / 2.0f  + top_title_height;            float min_canvas_w = Math.min(canvas_w, canvas_h);            m_action_w = min_canvas_w * 0.75f;            m_action_h = m_action_w;            m_fMoveStep = m_action_w / 21.0f;            m_action_left = m_center_x - m_action_w /2.0f ;            m_action_right = m_center_x + m_action_w /2.0f ;            m_action_top = m_center_y - m_action_h /2.0f ;            m_action_bottom = m_center_y + m_action_h /2.0f;            if (m_IdelTimer != null) {                m_IdelTimer.cancel();                m_IdelTimer = null;            }            if (m_IdelTimerTask != null) {                m_IdelTimerTask.cancel();                m_IdelTimerTask = null;            }            // -----            updateFloatLayout();            updateFaderSeekBarText();            m_FaderSeekBar.setProgress( m_nFader  );            updateBalanceSeekBarText();            m_BalanceSeekBar.setProgress(m_nBalance);        }            break;        }    }}; // end mHandler;@Overridepublic boolean onKeyDown(int keyCode, KeyEvent event) {    // TODO Auto-generated method stub    if (keyCode == KeyEvent.KEYCODE_BACK) {        this.finish();        return true;    }    return super.onKeyDown(keyCode, event);}public void onConfigurationChanged(Configuration newConfig) {    super.onConfigurationChanged(newConfig);    //save first    initActivity();    getFloatLayoutRect();}private void refreshFloatView() {    if (m_bFloatViewDisplayed) {        Log.e(TAG, "update m_float_view pos");        windowManager.updateViewLayout(m_float_view, layoutParams);    } else {        Log.e(TAG, "add m_float_view ");        windowManager.addView(m_float_view, layoutParams);        m_bFloatViewDisplayed = true;    }}public void refreshView(int x, int y) {    layoutParams.x = x - m_nBallRadius;    layoutParams.y = y - m_nBallRadius;    refreshFloatView();}public void getFloatLayoutRect() {    if (m_IdelTimer != null) {        m_IdelTimer.cancel();        m_IdelTimer = null;    }    if (m_IdelTimerTask != null) {        m_IdelTimerTask.cancel();        m_IdelTimerTask = null;    }    m_IdelTimer = new Timer();    m_IdelTimerTask = new MyIdelTimerTask();    m_IdelTimer.schedule(m_IdelTimerTask, m_lInterval, m_lInterval);}//根据m_nFader, m_nBalance更新 layoutpublic void updateFloatLayout(){    int nViewMove_x = (int) ( m_action_left + m_fMoveStep * m_nBalance );    int nViewMove_y = (int) ( m_action_top + ( m_action_h - m_fMoveStep * m_nFader ) );    refreshView( nViewMove_x, nViewMove_y );}@Overridepublic void onProgressChanged(SeekBar seekbar, int pos, boolean arg2) {    // TODO Auto-generated method stub    if(seekbar.getId() == R.id.fader_seek_bar)    {            m_nFader = pos;            String temp_str = "";            if( (m_nFader - 10) >  0  )                temp_str = "+" + Integer.toString(  m_nFader - 10 );            else                temp_str = Integer.toString(  m_nFader - 10 );            m_Fader_TextView.setText( temp_str );            updateFloatLayout();                }    else if( seekbar.getId() == R.id.balance_seek_bar )    {            m_nBalance = pos;            String temp_str = "";            if( (m_nBalance - 10) >  0  )                temp_str = "+" + Integer.toString(  m_nBalance - 10 );            else                temp_str = Integer.toString(  m_nBalance - 10 );            m_Balance_TextView.setText( temp_str );            updateFloatLayout();    }}@Overridepublic void onStartTrackingTouch(SeekBar seekbar) {    // TODO Auto-generated method stub    if(seekbar.getId() == R.id.fader_seek_bar)    {    }    else if( seekbar.getId() == R.id.balance_seek_bar )    {    }}@Overridepublic void onStopTrackingTouch(SeekBar seekbar) {    // TODO Auto-generated method stub    if(seekbar.getId() == R.id.fader_seek_bar)    {    }    else if( seekbar.getId() == R.id.balance_seek_bar )    {    }}public void updateFaderSeekBarText(){    String temp_str = "";    if( (m_nFader - 10) >  0  )        temp_str = "+" + Integer.toString(  m_nFader - 10 );    else        temp_str = Integer.toString(  m_nFader - 10 );    m_Fader_TextView.setText( temp_str );}public void updateBalanceSeekBarText(){    String temp_str = "";    if( (m_nBalance - 10) >  0  )        temp_str = "+" + Integer.toString(  m_nBalance - 10 );    else        temp_str = Integer.toString(  m_nBalance - 10 );    m_Balance_TextView.setText( temp_str );}public void onStop(){    Log.e(TAG, "onStop");    windowManager.removeView(m_float_view);    m_bFloatViewDisplayed = false;    super.onStop();}

}

链接地址：http://download.csdn.net/detail/yunchang789/9720273