Actually I have to make a analog clock widget showing world’s time after selecting the particular time zone. I have created a analog clock with
option of selecting the time zones.I want that the same clock with updated time zone should be displayed as a widget.I am not getting how to bring only the clock view as a widget.
My code is:
package nEx.Software.Tutorials.Widgets.AnalogClock;
import java.util.Calendar;
import java.util.Date;
import java.util.GregorianCalendar;
import java.util.TimeZone;
import java.util.Timer;
import java.util.TimerTask;
//import nEx.Software.Tutorials.Widgets.AnalogClock.main.CustomClock;
//import nEx.Software.Tutorials.Widgets.AnalogClock.main.MyTime;
import android.app.Activity;
import android.content.Context;
import android.content.Intent;
import android.graphics.Canvas;
import android.graphics.Paint;
import android.graphics.drawable.Drawable;
import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.view.View;
import android.view.ViewGroup;
import android.widget.FrameLayout;
import android.widget.LinearLayout;
import android.widget.RadioButton;
import android.widget.RadioGroup;
import android.widget.TextView;
public class Info extends Activity implements RadioGroup.OnCheckedChangeListener
{
Context context;
TextView tv;
RadioButton rb1, rb2, rb3;
RadioGroup r1;
FrameLayout fl1;
LinearLayout l1;
Timer timer;
Date result;
ViewGroup.LayoutParams lp1;
Drawable bck;
@Override
public void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState); setContentView(R.layout.main);
context = this;
tv = (TextView) findViewById(R.id.TextView01);
r1 = (RadioGroup) findViewById(R.id.RadioGroup01);
rb1 = (RadioButton) findViewById(R.id.RadioButton01);
rb2 = (RadioButton) findViewById(R.id.RadioButton02);
rb3 = (RadioButton) findViewById(R.id.RadioButton03);
fl1 = (FrameLayout) findViewById(R.id.FrameLayout01);
bck = this.getResources().getDrawable(R.drawable.clockface);
fl1.setBackgroundDrawable(bck);
lp1 = fl1.getLayoutParams();
r1.setOnCheckedChangeListener(this);
result = null;
}
private void updateTime(String str) {
// TODO Auto-generated method stub
if (timer != null) {
timer.cancel();
timer = null;
}
timer = new Timer(); //digital clock
MyTime mt = new MyTime(this, str);
timer.schedule(mt, 1, 1000);
}
public void onCheckedChanged(RadioGroup group, int checkedId) {
// TODO Auto-generated method stub
if (rb1.isChecked() == true) {
updateTime("GMT");
}
if (rb2.isChecked() == true) {
updateTime("EST");
}
if (rb3.isChecked() == true) {
updateTime("MST");
}
}
public class MyTime extends TimerTask {
String tz;
public MyTime(Context context, String str) {
tz = str;
}
@Override
public void run() {
// TODO Auto-generated method stub
try {
Date date = new Date();
date = getDateInTimeZone(date, tz);
//System.out.println(date.toLocaleString());
result = date;
handler.sendEmptyMessage(0);
} catch (Exception e) {
}
}
private Date getDateInTimeZone(Date currentDate, String timeZoneId) {
TimeZone tz = TimeZone.getTimeZone(timeZoneId);
Calendar mbCal = new GregorianCalendar(tz);
mbCal.setTimeInMillis(currentDate.getTime());
Calendar cal = Calendar.getInstance();
cal.set(Calendar.YEAR, mbCal.get(Calendar.YEAR));
cal.set(Calendar.MONTH, mbCal.get(Calendar.MONTH));
cal.set(Calendar.DAY_OF_MONTH, mbCal.get(Calendar.DAY_OF_MONTH));
cal.set(Calendar.HOUR_OF_DAY, mbCal.get(Calendar.HOUR_OF_DAY));
cal.set(Calendar.MINUTE, mbCal.get(Calendar.MINUTE));
cal.set(Calendar.SECOND, mbCal.get(Calendar.SECOND));
cal.set(Calendar.MILLISECOND, mbCal.get(Calendar.MILLISECOND));
return cal.getTime();
}
}
Handler handler = new Handler() {
@Override
public void handleMessage(Message msg) {
tv.setText(result.toLocaleString());
//System.out.println(result.getHours()+" "+result.getMinutes());
fl1.removeAllViews();
fl1.addView(new CustomClock(context, lp1.height / 2, lp1.width / 2, result));
}
};
public class CustomClock extends View {
private final float x;
private final float y;
private final int r = 70;
private final Date date;
private final Paint mPaint = new Paint(Paint.ANTI_ALIAS_FLAG);
public CustomClock(Context context, float x, float y, Date date) {
super(context);
this.x = x;
this.y = y;
this.date = date;
}
@Override
protected void onDraw(Canvas canvas) {
super.onDraw(canvas);
//canvas.drawCircle(x, y, r, mPaint);
float sec = (float) date.getSeconds();
float min = (float) date.getMinutes();
float hour = (float) date.getHours() + min / 60.0f;
mPaint.setColor(0xFFFF0000);
canvas.drawLine(x, y, (float) (x + (r - 15) * Math.cos(Math.toRadians((hour / 12.0f * 360.0f) - 90f))), (float) (y + (r - 10) * Math.sin(Math.toRadians((hour / 12.0f * 360.0f) - 90f))), mPaint);
canvas.save();
mPaint.setColor(0xFF0000FF);
canvas.drawLine(x, y, (float) (x + r * Math.cos(Math.toRadians((min / 60.0f * 360.0f) - 90f))), (float) (y + r * Math.sin(Math.toRadians((min / 60.0f * 360.0f) - 90f))), mPaint);
canvas.save();
mPaint.setColor(0xFFA2BC13);
canvas.drawLine(x, y, (float) (x + (r + 10) * Math.cos(Math.toRadians((sec / 60.0f * 360.0f) - 90f))), (float) (y + (r + 15) * Math.sin(Math.toRadians((sec / 60.0f * 360.0f) - 90f))), mPaint);
}
}
//}
// }
}
app widgets are quite limited to a few views called “remote views” . even they are not so flexible .
the reason behind this decision is probably security . you would have to get a workaround for this problem , since you cannot create your own customized view as an appwidget .
here’s a list of all of the available remote views:
http://developer.android.com/guide/topics/appwidgets/index.html#CreatingLayout
you can use their analog clock if you wish.