之前账号的文章2：Context-menu.Android库的使用(修改显示位置)

这个库iOS版可以直接调用一个改变位置的方法即可,但Android需要修改相关源码，我是修改为右下显示,解决方法：

1.修改fragment_menu:

<LinearLayout
    android:id="@+id/wrapper_buttons"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:orientation="vertical"
    android:layout_alignParentRight="true"
    android:layout_alignParentBottom="true"
    android:layout_alignParentEnd="true"/>

<LinearLayout
    android:id="@+id/wrapper_text"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:orientation="vertical"
    android:layout_toLeftOf="@+id/wrapper_buttons"
    android:layout_toStartOf="@+id/wrapper_buttons"
    android:layout_alignParentBottom="true"
    android:layout_marginRight="@dimen/text_wrapper_right_margin"
    android:layout_marginEnd="@dimen/text_wrapper_right_margin"
    android:gravity="end" />

2.修改menuAdapter,我这里只用修改3个位置：

1.

private void resetAnimations() {
    for (int i = 0; i < getItemCount(); i++) {
        resetTextAnimation(mTextWrapper.getChildAt(i));
        if (i == getItemCount()-1) {
            resetSideAnimation(mMenuWrapper.getChildAt(i));
        } else {
            resetVerticalAnimation(mMenuWrapper.getChildAt(i), true);
        }
    }
}

	2.
private AnimatorSet setOpenCloseAnimation(boolean isCloseAnimation) {
    List<Animator> textAnimations = new ArrayList<>();
    List<Animator> imageAnimations = new ArrayList<>();
    //true就是隐藏，从大到小隐藏。
    if (isCloseAnimation) {
        for (int i = getItemCount() - 1; i >= 0; i--) {
            fillOpenClosingAnimations(true, textAnimations, imageAnimations, i);
        }
    } else {
        //显示从后往前显示
        for (int i = getItemCount() - 1; i >= 0; i--) {
            fillOpenClosingAnimations(false, textAnimations, imageAnimations, i);
        }
    }
	3.
private void fillOpenClosingAnimations(boolean isCloseAnimation, List<Animator> textAnimations, List<Animator> imageAnimations, int wrapperPosition) {
    AnimatorSet textAnimatorSet = new AnimatorSet();
    Animator textAppearance = isCloseAnimation ?
            AnimatorUtils.alfaDisappear(mTextWrapper.getChildAt(wrapperPosition))
            : AnimatorUtils.alfaAppear(mTextWrapper.getChildAt(wrapperPosition));

    Animator textTranslation = isCloseAnimation ?
            AnimatorUtils.translationRight(mTextWrapper.getChildAt(wrapperPosition), mContext.getResources().getDimension(R.dimen.text_right_translation))
            : AnimatorUtils.translationLeft(mTextWrapper.getChildAt(wrapperPosition), mContext.getResources().getDimension(R.dimen.text_right_translation));

    textAnimatorSet.playTogether(textAppearance, textTranslation);
    textAnimations.add(textAnimatorSet);

    Animator imageRotation = isCloseAnimation ?
            wrapperPosition == 0 ? AnimatorUtils.rotationCloseToRight(mMenuWrapper.getChildAt(wrapperPosition)) : AnimatorUtils.rotationCloseVertical(mMenuWrapper.getChildAt(wrapperPosition))
            : wrapperPosition == getItemCount()-1 ? AnimatorUtils.rotationOpenFromRight(mMenuWrapper.getChildAt(wrapperPosition)) : AnimatorUtils.rotationOpenVertical(mMenuWrapper.getChildAt(wrapperPosition));
    imageAnimations.add(imageRotation);
}
完工。。。。。