动画效果 View控件的显示和隐藏效果

显示动画：

mShowAction = new TranslateAnimation(Animation.RELATIVE_TO_SELF, 1.0f,

Animation.RELATIVE_TO_SELF, 0.0f, Animation.RELATIVE_TO_SELF,

0.0f, Animation.RELATIVE_TO_SELF, 0.0f);

mShowAction.setDuration(500);

隐藏动画：

mHiddenAction = new TranslateAnimation(Animation.RELATIVE_TO_SELF,

0.0f, Animation.RELATIVE_TO_SELF, 1.0f,

Animation.RELATIVE_TO_SELF, 0.0f, Animation.RELATIVE_TO_SELF,

0.0f);

mHiddenAction.setDuration(500);

View的显示：

mSidebarLayout.startAnimation(mShowAction);

mSidebarLayout.setVisibility(View.VISIBLE);

mSidebarHideBtn.setVisibility(View.GONE);

View的隐藏：

mSidebarLayout.startAnimation(mHiddenAction);

mSidebarLayout.setVisibility(View.GONE);

mSidebarHideBtn.setVisibility(View.VISIBLE);

动画效果：
显示时view从右边向左滑动出现；隐藏时从左向右滑动隐藏；