Sunday, July 27, 2014

Display Date formated using String.format() with Locale

This example show how to display formated Date using String.format() with Locale.


package com.example.androidstringformat;

import java.util.Date;
import java.util.Locale;

import android.support.v7.app.ActionBarActivity;
import android.view.View;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemSelectedListener;
import android.widget.ArrayAdapter;
import android.widget.Spinner;
import android.widget.TextView;
import android.os.Bundle;

public class MainActivity extends ActionBarActivity {
 
 TextView textOut;
 TextView localeInfo;
 
 Spinner spAvailableLocale;
 Locale[] availableLocales;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        
     textOut = (TextView)findViewById(R.id.printout);
     localeInfo = (TextView)findViewById(R.id.localeinfo);
     
     //get installed locales
     availableLocales = Locale.getAvailableLocales();
     spAvailableLocale = (Spinner)findViewById(R.id.spavlocale);
     
     ArrayAdapter<Locale> adapter = 
      new ArrayAdapter<Locale>(this, 
       android.R.layout.simple_spinner_item, 
       availableLocales);
     adapter.setDropDownViewResource(
       android.R.layout.simple_spinner_dropdown_item);
     spAvailableLocale.setAdapter(adapter);
     spAvailableLocale.setOnItemSelectedListener(onItemSelectedListener);
    }

    OnItemSelectedListener onItemSelectedListener =
     new OnItemSelectedListener(){

   @Override
   public void onItemSelected(AdapterView<?> parent, View view,
     int position, long id) {
    Locale locale = (Locale)parent.getItemAtPosition(position);
    localeInfo.setText(String.format(
     "DisplayCountry: %s\nDisplayLanguage: %s\nDisplayName: %s\n\n", 
     locale.getDisplayCountry(), 
     locale.getDisplayLanguage(),
     locale.getDisplayName()));
    
    Date now = new Date();
    textOut.setText(
     String.format(locale, "%tc\n", now) + //C library asctime(3)-like output.
     String.format(locale, "%tD\n", now) + //(MM/DD/YY)
     String.format(locale, "%tF\n", now) + //(YYYY-MM-DD)
     String.format(locale, "%tr\n", now) + //Full 12-hour time
     String.format(locale, "%tz\n", now) + //Time zone GMT offset 
     String.format(locale, "%tZ\n", now)  //Localized time zone abbreviation 
     );
   }

   @Override
   public void onNothingSelected(AdapterView<?> arg0) {}
     
    };
    
}


<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:paddingBottom="@dimen/activity_vertical_margin"
    android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    android:orientation="vertical"
    tools:context="com.example.androidstringformat.MainActivity" >

    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="center_horizontal"
        android:autoLink="web"
        android:text="http://android-er.blogspot.com/"
        android:textStyle="bold" />
    <Spinner
        android:id="@+id/spavlocale"
        android:layout_width="match_parent"
        android:layout_height="wrap_content" />
    <TextView
        android:id="@+id/localeinfo"
        android:layout_width="match_parent"
        android:layout_height="wrap_content" />
    <TextView
        android:id="@+id/printout"
        android:layout_width="match_parent"
        android:layout_height="wrap_content" />

</LinearLayout>


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