Why is the date not showing up when I launch android?
android, class, date, java
Solution
You need to modify your following code,
private void Nonevent_Event()
{
String stringDate = "";
Date_Class.date_time(stringCalendar);
stringCalendar.setText(stringDate); // here you forgot to assign the string value
}
to below code,
private void Nonevent_Event()
{
String stringDate = "";
stringDate = Date_Class.date_time(stringCalendar);
stringCalendar.setText(stringDate);
}
Problem
This is what I all have so far. I researched the command in the Date_Class.java and it said that was supposed to show the current date. But when I launch the android application, nothing shows up. Why is this? Do I have the wrong code? What did I do wrong? Any help with this would be greatly appreciated. Thank you. activity_main.xml ``` <?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="fill_parent" android:layout_height="fill_parent" android:orientation="vertical" > <!-- Header --> <TextView android:layout_width="fill_parent" android:layout_height="wrap_content" android:background="#000000" android:textColor="#FFFFFF" android:gravity="center" android:layout_marginTop="20dp" android:id="@+id/Header" android:text="" /> <!-- Name --> <TextView android:layout_width="fill_parent" android:layout_height="wrap_content" android:layout_marginLeft="50dp" android:id="@+id/Name" android:text="" /> <!-- Project Name --> <TextView android:layout_width="fill_parent" android:layout_height="wrap_content" android:layout_marginLeft="50dp" android:id="@+id/ProjectName" android:text="" /> <!-- Digital Clock --> <DigitalClock android:id="@+id/DigitalClock" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_marginLeft="50dp" android:text="" /> <!-- Calendar --> <TextView android:id="@+id/stringCalendar" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_marginLeft="50dp" android:text="" /> <!-- End of Program --> <TextView android:layout_width="fill_parent" android:layout_height="wrap_content" android:textColor="#FFFFFF" android:background="#000000" android:gravity="center" android:id="@+id/EndOfProgram" android:text="" /> </LinearLayout> ``` MainActivity.java ``` package com.example.d1project1; import java.util.Calendar; import android.os.Bundle; import android.app.Activity; import android.widget.DigitalClock; import android.widget.TextView; @SuppressWarnings({ "deprecation", "unused" }) public class MainActivity extends Activity { //Declare GUI objects TextView stringHeader; TextView stringName; TextView stringProject; TextView digitalClock1; TextView stringEnd; TextView stringCalendar; TextView stringDisplay; DigitalClock DigitalClock; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); Init_GUI(); DigitalClock(); Nonevent_Event(); } private void DigitalClock() { //DigitalClock DigitalClock = (DigitalClock)findViewById(R.id.DigitalClock); } private void Nonevent_Event() { String stringDate = ""; Date_Class.date_time(stringCalendar); stringCalendar.setText(stringDate); } //method to link GUI items to code private void Init_GUI() { stringHeader = (TextView)findViewById(R.id.Header); stringName = (TextView)findViewById(R.id.Name); stringProject = (TextView)findViewById(R.id.ProjectName); stringEnd = (TextView)findViewById(R.id.EndOfProgram); stringCalendar = (TextView)findViewById(R.id.stringCalendar); stringHeader.setText("Day 1 Project 1 - Travis Finlan"); stringName.setText("Travis Finlan"); stringProject.setText("Day 1 Project 1"); stringEnd.setText("End of Program"); } } ``` Date_Class.java ``` package com.example.d1project1; import java.text.SimpleDateFormat; import java.util.Calendar; import android.widget.TextView; public class Date_Class { public static String date_time(TextView stringCalendar) { //Calendar Calendar c = Calendar.getInstance(); System.out.println("Current time => " + c.getTime()); SimpleDateFormat df = new SimpleDateFormat("dd-MMM-yyyy"); String formattedDate = df.format(c.getTime()); return formattedDate; } } ```