Java 遍历列表android
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looping through List android
提问by Rakeeb Rajbhandari
I have the following method:
我有以下方法：
public List<String> getAllValue(){
List<String> list = new ArrayList<String>();
if(pref.getString(KEY_NUMBER1 , "").length()>2)
list.add(pref.getString(KEY_NUMBER1 , ""));
if(pref.getString(KEY_NUMBER2 , "").length()>2)
list.add(pref.getString(KEY_NUMBER2 , ""));
if(pref.getString(KEY_NUMBER3 , "").length()>2)
list.add(pref.getString(KEY_NUMBER3 , ""));
if(pref.getString(KEY_NUMBER4 , "").length()>2)
list.add(pref.getString(KEY_NUMBER4 , ""));
if(pref.getString(KEY_NUMBER5 , "").length()>2)
list.add(pref.getString(KEY_NUMBER5 , ""));
return list;
}
What I need to do now is to assign these numbers(like KEY_NUMBER1) to the following editTexts:
我现在需要做的是将这些数字（如KEY_NUMBER1）分配给以下内容editTexts：
EditText phoneNumber1, phoneNumber2, phoneNumber3, phoneNumber4, phoneNumber5;
Being new to working with Lists, I am having a hard time trying to figure out a way to loop through and assign values to these editTexts, like
作为使用 Lists 的新手，我很难想出一种方法来循环遍历这些 editTexts 并为其分配值，例如
phoneNumber1.setText(KEY_NUMBER1);
phoneNumber2.setText(KEY_NUMBER2);
phoneNumber3.setText(KEY_NUMBER3);
采纳答案by Shobhit Puri
Assuming listis your List<String>retuned from the function. You may loop over it like:
假设list是您List<String>从功能中重新调整的。你可以像这样循环：
for (int i=0; i<list.size(); i++) {
System.out.println(list.get(i));
}
For assigning the EditText, you can just use the index, if you the number of items and it is fixed( which seem to be 5 here):
对于分配 EditText，您可以只使用索引，如果您的项目数是固定的（这里似乎是 5）：
phoneNumber1.setText(list.get(0));
phoneNumber2.setText(list.get(1));
//so on ...
