代码控制view显示位置

 RelativeLayout.LayoutParams params = (RelativeLayout.LayoutParams) mCenterClock.getLayoutParams();
        if(isStatusIconVisibile()){
            params.setMarginStart(0);
            params.leftMargin=2;
            mCenterClock.setLayoutParams(params);
        }else{
            params.setMarginStart(34);
            params.leftMargin=2;
            mCenterClock.setLayoutParams(params);
        }
       //逻辑某一个的判断
 private boolean isStatusIconVisibile(){
        boolean flag=true;
        for (int i = 0; i < mStatusIcons.getChildCount(); i++) {
            StatusBarIconView v = (StatusBarIconView) mStatusIcons.getChildAt(i);
            flag= flag&&(v.getVisibility()== View.GONE);
            Log.d(TAG,"flag is: "+flag +" v.getVisibility()"+v.getVisibility());

        }
        return !flag;
    }