Java 将 Strings.xml 中的 String-Array 更改为 ArrayList
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Change String-Array in Strings.xml to ArrayList
提问by hichris123
I'm developing an Android app. I need to convert a string array into an ArrayList. I've read up on this, and all have cases where you add the values to the array in the java file. I have declared the string-array in the strings.xml file. My string-array is here:
我正在开发一个 Android 应用程序。我需要将字符串数组转换为 ArrayList。我已经阅读了这一点,并且都有将值添加到 java 文件中的数组的情况。我已经在 strings.xml 文件中声明了字符串数组。我的字符串数组在这里:
<string-array name="Lines">
<item>Red Line</item>
<item>Blue Line</item>
<item>Orange Line</item>
<item>Green Line</item>
<item>Brown Line</item>
<item>Purple Line</item>
<item>Pink Line</item>
<item>Yellow Line</item>
</string-array>
I need to convert Lines into ArrayList. If I use this
我需要将 Lines 转换为 ArrayList。如果我用这个
List<String> Lines = new ArrayList<String>();
to declare the ArrayList, how can find the array list by ID, and store that as Lines?
要声明 ArrayList,如何通过 ID 找到数组列表,并将其存储为 Lines?
采纳答案by Melih Mucuk
Try this;
尝试这个;
List<String> Lines = Arrays.asList(getResources().getStringArray(R.array.Lines));
and this for kotlin:
这对于科特林:
val Lines = resources.getStringArray(R.array.Lines).toList()
回答by Waqar UlHaq
In strings.xml, add string array
在strings.xml中,添加字符串数组
<string-array name="dashboard_tags">
<item>Home</item>
<item>Settings</item>
</string-array>
In your .java class access the string array like
在您的 .java 类中访问字符串数组,如
List<String> tags = Arrays.asList(getResources().getStringArray(R.array.dashboard_tags));
回答by OhhhThatVarun
If anybody wondering how to do the same in kotlin
如果有人想知道如何在kotlin 中做同样的事情
val universities = arrayListOf<String>(*resources.getStringArray(R.array.universities))
universities
will be ArrayList<String>
universities
将会 ArrayList<String>
回答by Silambarasan
This is the best practice without any warning
这是没有任何警告的最佳实践
Add string array to arraylist:
将字符串数组添加到数组列表:
Collections.addAll(Lines, getResources().getStringArray(R.array.Lines));
To add one ArrayList to another:
将一个 ArrayList 添加到另一个:
newList.addAll(oldList);