散開路徑：

int?l1?=?(int)?(mRadius?*?Math.sin(Math.PI?/?count?*?(i?+?1)));
int?t1=?(int)?(mRadius?*?Math.cos(Math.PI?/?count?*?(i?+?1)));

int?xflag?=?1;
int?yflag?=?1;
AnimationSet?animset?=?new?AnimationSet(true);
Animation?tranAnim?=?null;
if?(mCurrentStatus?==?Status.CLOSE)
{
????tranAnim?=?new?TranslateAnimation(xflag?*?t1,?0,?yflag?*?l1,?0);
????childView.setClickable(true);
????childView.setFocusable(true);
}
else
{
????tranAnim?=?new?TranslateAnimation(0,?xflag?*?t1,?0,?yflag?*?l1);
????childView.setClickable(false);
????childView.setFocusable(false);
}

主菜單和子菜單定位：

protected?void?onLayout(boolean?changed,?int?l,?int?t,?int?r,?int?b)?{
????if?(changed){
????????layoutCButton();
????????int?count?=?getChildCount();
????????for?(int?i=0;i<count-1;i++){
????????????View?child?=?getChildAt(i+1);
????????????child.setVisibility(View.GONE);
????????????int?t1?=?(int)?(mRadius?*?Math.sin(Math.PI?/?count?*?(i?+?1)));
????????????int?l1=?(int)?(mRadius?*?Math.cos(Math.PI?/?count?*?(i?+?1)));

????????????int?width?=?child.getMeasuredWidth();
????????????int?height?=?child.getMeasuredHeight();
????????????l?=?getMeasuredWidth()?/?2?-?width?/?2?-?l1;
????????????t?=?getMeasuredHeight()?-?height?-?t1;

????????????child.layout(l,?t,?l?+?width,?t?+?height);
????????}

????}

}

private?void?layoutCButton()?{
????mCButton?=?getChildAt(0);
????mCButton.setOnClickListener(this);

????int?l?=?0;
????int?t?=?0;

????int?width?=?mCButton.getMeasuredWidth();
????int?height?=?mCButton.getMeasuredHeight();
????switch?(mPosition){
????????case?CENTER:
????????????l?=?getMeasuredWidth()?/?2?-?width?/?2;
????????????t?=?getMeasuredHeight()?-?height;
????????????break;
????}
????mCButton.layout(l,?t,?l?+?width,?t?+?height);
}