RNMailComposeModule.java 文件源码

private String[] getStringArray(ReadableMap map, String key) {
    ReadableArray array = getArray(map, key);
    if (array == null) return null;

    ArrayList<String> list = new ArrayList<>();
    for (int i = 0; i < array.size(); i++) {
        if (array.getType(i) == ReadableType.String) {
            String str = array.getString(i);
            if (!isEmpty(str)) {
                list.add(str);
            }
        }
    }

    String[] arr = new String[list.size()];
    return list.toArray(arr);
}