选择后如何修剪微调器选择？

Question

我想在Spinner中修剪用户的选择。当用户选择他的国家（例如“+232 Sierra Leone”）时，当选择项目并且微调器关闭时，仅显示“+232”。

提前感谢您的建议。

// I have two arrays of String that i join to make one

String[] phoneCodes ={"232", "44", "1"};
String[] countries = {"Sierra Leone", "United Kingdom", "United States"};
String[] phoneCodesCountries = new String[3];


// Here i join those two arrays, for example "+232    Sierra Leone"
for (int i = 0; i < phoneCodes.length; i++) {
    phoneCodesCountries[i] = "+" + phoneCodes[i] + "       " + countries[i];
}

// Setting the adapter to phoneCodesArray

ArrayAdapter<String> phoneCodesArray = new ArrayAdapter<String>(RegisterActivity.this, android.R.layout.simple_spinner_item, phoneCodesCountries);
phoneCodesArray.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
spPhoneCodes.setAdapter(phoneCodesArray);

Answer 1

您可以通过

获取微调器

mySpinner.getSelectedItem().toString();

所以在你的例子中，价值将是+232塞拉利昂。现在，您可以通过拆分整个字符串来获取国家/地区代码：

String[] split = mySpinner.getSelectedItem().toString().split("\\+");

现在split [0]将得到你想要的结果+232。