How to iterate Arraylist<HashMap<String,String>>?

霸气de小男生 提交于 2019-12-29 04:24:27

问题


I have an ArrayList object like this:

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.


回答1:


Simplest is to iterate over all the HashMaps in the ArrayList and then iterate over all the keys in the 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2:


for(HashMap<String, String> map : data){ ... deal with map... }



来源:https://stackoverflow.com/questions/7683960/how-to-iterate-arraylisthashmapstring-string

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