java 如何迭代 Arraylist<HashMap<String,String>>？
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How to iterate Arraylist<HashMap<String,String>>?
提问by Piyush
I have an ArrayList object like this:
我有一个像这样的 ArrayList 对象：
ArrayList<HashMap<String, String>> data = new ArrayList<HashMap<String, String>>();
How to iterate through the list? I want to display the value in a TextView which comes from the data of ArrayList object.
如何遍历列表？我想在来自 ArrayList 对象数据的 TextView 中显示值。
回答by dacwe
Simplest is to iterate over all the HashMaps in the ArrayListand then iterate over all the keys in the Map:
最简单的方法是遍历 中的所有HashMaps ArrayList，然后遍历 中的所有键Map：
TextView view = (TextView) view.findViewById(R.id.view);
for (HashMap<String, String> map : data)
for (Entry<String, String> entry : map.entrySet())
view.append(entry.getKey() + " => " + entry.getValue());
回答by DallinDyer
for(HashMap<String, String> map : data){
... deal with map...
}
for(HashMap<String, String> map : data){
... deal with map...
}
