package com.exercise.AndroidTime;
import java.util.Calendar;
import android.app.Activity;
import android.app.TimePickerDialog;
import android.app.TimePickerDialog.OnTimeSetListener;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.TextView;
import android.widget.TimePicker;
public class AndroidTimeActivity extends Activity {
TimePicker myTimePicker;
Button buttonstartSetDialog;
TextView textPrompt;
TimePickerDialog timePickerDialog;
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
textPrompt = (TextView)findViewById(R.id.prompt);
buttonstartSetDialog = (Button)findViewById(R.id.startSetDialog);
buttonstartSetDialog.setOnClickListener(new OnClickListener(){
@Override
public void onClick(View v) {
openTimePickerDialog(false);
}});
}
private void openTimePickerDialog(boolean is24r){
Calendar calendar = Calendar.getInstance();
timePickerDialog = new TimePickerDialog(
AndroidTimeActivity.this,
onTimeSetListener,
calendar.get(Calendar.HOUR_OF_DAY),
calendar.get(Calendar.MINUTE),
is24r);
timePickerDialog.setTitle("TimePickerDialog Title");
timePickerDialog.setMessage("TimePickerDialog Message");
timePickerDialog.show();
}
OnTimeSetListener onTimeSetListener
= new OnTimeSetListener(){
@Override
public void onTimeSet(TimePicker view, int hourOfDay, int minute) {
Calendar calNow = Calendar.getInstance();
Calendar calSet = (Calendar) calNow.clone();
calSet.set(Calendar.HOUR_OF_DAY, hourOfDay);
calSet.set(Calendar.MINUTE, minute);
String stringPrompt = "Current Time is: " + calNow.getTime() + " / " + calNow.getTimeInMillis() + "\n"
+ "Set Time is: " + calSet.getTime() + " / " + calSet.getTimeInMillis() + "\n"
+ "calSet.compareTo(calNow) = " + calSet.compareTo(calNow) + "\n\n";
if(calSet.compareTo(calNow) > 0){
//Today Set time not yet passed
long diff = calSet.getTimeInMillis() - calNow.getTimeInMillis();
stringPrompt += "Millis to set time = " + diff;
}else{
//Today Set time passed, count to tomorrow
calSet.add(Calendar.DATE, 1);
long diff = calSet.getTimeInMillis() - calNow.getTimeInMillis();
stringPrompt += "Millis to tomorrow set time = " + diff;
}
textPrompt.setText(stringPrompt);
}};
}
<?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" >
<TextView
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="@string/hello" />
<Button
android:id="@+id/startSetDialog"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="Set Target Time"/>
<TextView
android:id="@+id/prompt"
android:layout_width="fill_parent"
android:layout_height="wrap_content" />
</LinearLayout>
Related:
- java.util.Calendar
I ran across this a couple of weeks back, but I didn't have time to write about it.
