i declared ArrayList
我声明了ArrayList
ArrayList<ArrayList<String>> usersList1234 = new ArrayList<ArrayList<String>>(); and listview.
ArrayList
I set the ArrayList to ListView in the following way:
我通过以下方式将ArrayList设置为ListView:
ArrayAdapter adapter = new ArrayAdapter<>(SearchFriendsActivity.this, android.R.layout.simple_list_item_1, usersList1234);
this.allUsers.setAdapter(adapter);
My list has quite a lot of elements (each element has three fields. this is how it looks:
我的列表有很多元素(每个元素有三个字段。这是它的外观:
When viewed on a virtual Android device, it looks like this ()
在虚拟Android设备上查看时,它看起来像这样()
[Text, Text, Text]
[文字,文字,文字]
[Text1, Text1, Text1]
[Text1,Text1,Text1]
[Text2, Text2, Text2]
[Text2,Text2,Text2]
Is there a way to remove these square brackets?
有没有办法删除这些方括号?
1 个解决方案
#1
2
From the ArrayAdapter source code, if your single object inside the List you send is not an instance of CharSequence, it just uses the toString() of that object.
从ArrayAdapter源代码中,如果您发送的List中的单个对象不是CharSequence的实例,则它只使用该对象的toString()。
And ArrayList toString() adds those [] for you, you need to pass List<String> and construct the strings yourself as you wish.
并且ArrayList toString()为您添加[],您需要传递List
For each sub list you can do the appending yourself.
对于每个子列表,您可以自己进行追加。
#1
2
From the ArrayAdapter source code, if your single object inside the List you send is not an instance of CharSequence, it just uses the toString() of that object.
从ArrayAdapter源代码中,如果您发送的List中的单个对象不是CharSequence的实例,则它只使用该对象的toString()。
And ArrayList toString() adds those [] for you, you need to pass List<String> and construct the strings yourself as you wish.
并且ArrayList toString()为您添加[],您需要传递List
For each sub list you can do the appending yourself.
对于每个子列表,您可以自己进行追加。