DialogUtil dialogUtil = new DialogUtil(this);
顶部弹窗
View view = dialogUtil.showTopDialog(R.layout.dialog);
中间弹窗
View view = dialogUtil.showMiddleDialog(R.layout.dialog);
底部弹窗
View view = dialogUtil.showBottomDialog(R.layout.dialog);
顶部弹窗
dialogUtil.closeTopDialog();
中间弹窗
dialogUtil.closemiddleDialog();
底部弹窗
dialogUtil.closeBottomDialog();