如何在android中显示带有国家和城市名称的时区

Question

我正在开发一个应用程序，我必须在spinner中显示带有国家和城市名称的时区。我已经使用了TimeZone类。但在这种情况下，我只得到了timezoneId和timezoneName。如何在spinner中显示带有国家和城市名称的时区？

Answer 1

您是否考虑过使用Joda Time？它提供了返回时区名称映射的CCD_ 6方法。

你可以在这里找到更多信息

Answer 2

解决方案：-

private String[] timezoneArray;
private Spinner spinner_timezone;
spinner_timezone = (Spinner) findViewById(R.id.spinner_timezone);

然后呼叫这个

timezoneArray = TimeZone.getAvailableIDs();
CustomAdapter customAdapter = new CustomAdapter(getApplicationContext(), timezoneArray);
spinner_timezone.setAdapter(customAdapter);
for (int i = 0; i < timezoneArray.length; i++) {
if (timezoneArray[i].equals(TimeZone.getDefault().getID())) {
spinner_timezone.setSelection(i);
break;
}
}

则CCD_ 7类

public class CustomAdapter extends BaseAdapter {
Context context;
String[] countryNames;
LayoutInflater inflter;
public CustomAdapter(Context applicationContext, String[] countryNames) {
this.context = applicationContext;
this.countryNames = countryNames;
inflter = (LayoutInflater.from(applicationContext));
}
@Override
public int getCount() {
return countryNames.length;
}
@Override
public Object getItem(int i) {
return null;
}
@Override
public long getItemId(int i) {
return 0;
}
@Override
public View getView(int i, View view, ViewGroup viewGroup) {
view = inflter.inflate(R.layout.custom_spinner_items, null);
TextView names = (TextView) view.findViewById(R.id.textView);
names.setText(displayTimeZone(TimeZone.getTimeZone(countryNames[i])));
return view;
}
private String displayTimeZone(TimeZone tz) {
long hours = TimeUnit.MILLISECONDS.toHours(tz.getRawOffset());
long minutes = TimeUnit.MILLISECONDS.toMinutes(tz.getRawOffset())
- TimeUnit.HOURS.toMinutes(hours);
// avoid -4:-30 issue
minutes = Math.abs(minutes);
String result = "";
if (hours > 0) {
result = String.format("(GMT +%d:%02d) %s", hours, minutes, tz.getID());
} else {
result = String.format("(GMT %d:%02d) %s", hours, minutes, tz.getID());
}
return result;
}
}

此处为customer_spinner_items

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent">
<TextView
android:id="@+id/textView"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:padding="10dp"
android:textSize="15sp"
android:text="Wifi Airtel"
android:textColor="#000" />
</RelativeLayout>