android问题，求助

[wang_daren]

自定义了一个view，里面主要是对一张图片的旋转处理。，然后在activity里，用handler和timer去实现图片自动旋转。。当我手势向上滑动时，图片开始旋转，但现在旋转不了，，
自定义的view。。
public class MyView extends View {

private Context context ;
private Bitmap showBmp ;
private Matrix matrix ;
private Camera camera ;
public int deltaX ;
private int centerX , centerY ;

public MyView(Context context){
super(context);
this.context = context ;
initData();

}

//自定义view组件
public MyView(Context context,AttributeSet att) {
super(context,att);
this.context = context ;
initData();


}

private void initData(){
showBmp = BitmapFactory.decodeResource(context.getResources(), R.drawable.coinface);

centerX = showBmp.getWidth()/2 ;
centerY = showBmp.getHeight()/2 ;
matrix = new Matrix();
camera = new Camera();
// timer=new Timer();


}

//布局位置
@Override
protected void onLayout(boolean changed, int left, int top, int right,
int bottom) {

}


//重新绘画
protected void onDraw(Canvas canvas) {

camera.save();
//绕X轴旋转
camera.rotateX(deltaX);
camera.getMatrix(matrix);
camera.restore();
//translate平移，pre前
matrix.preTranslate(-this.centerX, -this.centerY);
//post是后乘，当前的矩阵乘以参数给出的矩阵
matrix.postTranslate(this.centerX, this.centerY);
canvas.drawBitmap(showBmp, matrix, null);
}
}

activity里：
@Override
public boolean onFling(MotionEvent e1, MotionEvent e2, float velocityX,
float velocityY) {
//MIN_DISTANCE滑动的最短距离
if(e1.getY()-e2.getY()>MIN_DISTANCE){

Handler handler=new Handler(){
@Override
public void handleMessage(Message msg) {

switch(msg.what){
case 1:
myView.deltaX+=95.0f;
break;
}

myView.invalidate();

}
};

//定时器
timer.schedule(new TimerTask() {

@Override
public void run() {

Message message = new Message();
message.what = 1;
handler.sendMessage(message);
}
}, 0,1);
Toast.makeText(this, "滑动了", Toast.LENGTH_LONG).show();
return true;
}else{


return false;
}
}
是不是handler写错了，滑动了没更新UI。。。toast显示滑动了。。