今日写了个如题目的简单功能，结果列表不显示
无奈重写了一次代码发现setMessage和setSingleChoiceItems不能同时使用。
正确的如下：
private void mobilePhone(){ AlertDialog.Builder builder = new AlertDialog.Builder(HomePageChildrenActivity.this.getParent()); if(children_Data.schoolbean.schType.equals("K")){//幼儿园 List<FriendsBean> teacherlist = new ArrayList<FriendsBean>(); for(int i=0;i<children_Data.friends.size();i++){ if(children_Data.friends.get(i).getUsertype().equals("T")){ teacherlist.add(children_Data.friends.get(i)); } } String[] teachers = new String[teacherlist.size()] ; for(int i=0;i<teacherlist.size();i++){ teachers[i]=teacherlist.get(i).getUserneme(); } ButtonOnClick buttonOnClick = new ButtonOnClick(0,teacherlist); builder.setTitle("请选择教师"); builder.setSingleChoiceItems(teachers, 0,buttonOnClick); builder.setPositiveButton("确认",buttonOnClick); builder.setNegativeButton("取消",buttonOnClick); }else{ builder.setMessage("确认拨打"+app.CurrentChildren.childrenName+"的班主任老师电话吗？"); builder.setTitle("提示"); builder.setPositiveButton("确认", new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { Intent intent = new Intent(); intent = new Intent(Intent.ACTION_CALL, Uri.parse("tel:"+children_Data.TeaherBean.getMobilePhone())); startActivity(intent); dialog.dismiss(); } }); builder.setNegativeButton("取消", new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { dialog.dismiss(); } }); } builder.show(); }