在Android上如何在ArrayList中的每个元素末尾添加逗号

Question

在我的应用程序中，我希望使用此库来显示ArrayList项。
服务器中的ArrayList：

"genres": [
      "Action",
      " Comedy",
      " Family"
    ]

private String[] mostlyMatchedKeywordsStrings = serialResponse.getData().getGenres();
private List<String> cloudChipList = new ArrayList<>();

for (String str : mostlyMatchedKeywordsStrings) {
    cloudChipList.add(str);

    if (cloudChipList.size() > 0) {
       infoSerialFrag_GenreChips.addChip(str);
    }
}

Answer 1

您可以使用如下所示的for循环来尝试此操作吗：

编辑：

private String[] mostlyMatchedKeywordsStrings;
    private List<String> cloudChipList = new ArrayList<>();

    mostlyMatchedKeywordsStrings = serialResponse.getData().getGenres();

    for (String str : mostlyMatchedKeywordsStrings) {
        cloudChipList.add(str);
    }
    if (cloudChipList.size() > 0) {
        for (int i = 0; i < cloudChipList.size(); i++) {

            if (i == (cloudChipList.size() - 1)) //true only for last element
                infoSerialFrag_GenreChips.add(cloudChipList.get(i));

            else
                infoSerialFrag_GenreChips.add(cloudChipList.get(i) + ","); //this will execute for 1st to 2nd last element
        }
    }