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/MainActivity.java Secret
Created May 10, 2016

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MainActivity and object class for my timer app.
package com.alxmjo.simplymindful.ui;
import android.content.Intent;
import android.os.Bundle;
import android.os.CountDownTimer;
import android.preference.PreferenceManager;
import android.support.design.widget.FloatingActionButton;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.Toolbar;
import android.view.View;
import android.view.Menu;
import android.view.MenuItem;
import com.alxmjo.simplymindful.R;
import com.alxmjo.simplymindful.session.Session;
import com.alxmjo.simplymindful.settings.SettingsActivity;
import com.alxmjo.simplymindful.utilities.AlarmReceiver;
import com.mikhaellopez.circularprogressbar.CircularProgressBar;
import android.widget.ImageButton;
import android.widget.TextView;
import java.util.concurrent.TimeUnit;
public class MainActivity extends AppCompatActivity {
private static final String TAG = "MainActivity";
// Session and timer
public Session session;
private CountDownTimer countDownTimer;
// Controls
private boolean isTicking;
// Views
private CircularProgressBar circularProgressBar;
private FloatingActionButton startPauseButton;
private ImageButton resetButton;
private TextView prepDigits;
private TextView mindDigits;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
PreferenceManager.setDefaultValues(this, R.xml.preferences, false);
// Initialize session
initializeSession();
// Initialize views
circularProgressBar = (CircularProgressBar) findViewById(R.id.circular_progress_bar);
startPauseButton = (FloatingActionButton) findViewById(R.id.start_pause_button);
prepDigits = (TextView) findViewById(R.id.preparation_digits);
mindDigits = (TextView) findViewById(R.id.mindfulness_digits);
// Set views
setPrepDigits(session.getPrepRemaining());
setMindDigits(session.getMindRemaining());
}
// ---Session lifecycle methods---
private void initializeSession() {
session = new Session(this);
isTicking = false;
}
public void startSession(View v) {
if (!isTicking) {
// Runs on play press
countDownTimer = new CountDownTimer(session.getPrepRemaining() + session.getMindRemaining(), 10) {
@Override
public void onTick(long millisUntilFinished) {
if (millisUntilFinished > session.getMindRemaining()) {
// Preparation timer
session.setPrepRemaining(millisUntilFinished - session.getMindRemaining());
setPrepDigits(millisUntilFinished - session.getMindRemaining());
} else {
// Mindfulness timer
prepDigits.setVisibility(View.INVISIBLE);
session.setMindRemaining(millisUntilFinished);
circularProgressBar.setProgress(((session.getMindLength() - millisUntilFinished) / (float) session.getMindLength()) * 100);
setMindDigits(millisUntilFinished);
}
}
@Override
public void onFinish() {
session = null;
isTicking = false;
circularProgressBar.setProgress(100);
initializeSession();
}
};
countDownTimer.start();
isTicking = true;
startPauseButton.setImageDrawable(getResources().getDrawable(android.R.drawable.ic_media_pause));
// Alarm
AlarmReceiver.scheduleAlarm(this);
} else {
// Runs on pause press
countDownTimer.cancel();
isTicking = false;
startPauseButton.setImageDrawable(getResources().getDrawable(android.R.drawable.ic_media_play));
}
}
public void resetSession(View v) {
// Runs on reset press
if (countDownTimer != null) {
countDownTimer.cancel();
}
startPauseButton.setImageDrawable(getResources().getDrawable(android.R.drawable.ic_media_play));
circularProgressBar.setProgress(0);
prepDigits.setVisibility(View.VISIBLE);
initializeSession();
setPrepDigits(session.getPrepRemaining());
setMindDigits(session.getMindRemaining());
}
// ---UI methods---
public void setPrepDigits(long l) {
if (l == 0) {
prepDigits.setVisibility(View.INVISIBLE);
} else {
String s = Long.toString(l / 1000);
prepDigits.setText(s.replaceFirst("^0+(?!$)", ""));
}
}
public void setMindDigits(long l) {
if (l >= 3600000) {
String hms = String.format("%02d %02d %02d", TimeUnit.MILLISECONDS.toHours(l),
TimeUnit.MILLISECONDS.toMinutes(l) % TimeUnit.HOURS.toMinutes(1),
TimeUnit.MILLISECONDS.toSeconds(l) % TimeUnit.MINUTES.toSeconds(1));
mindDigits.setText(hms.replaceFirst("^0+(?!$)", ""));
} else if (l < 3600000 && l >= 60000) {
String ms = String.format("%02d %02d",
TimeUnit.MILLISECONDS.toMinutes(l) % TimeUnit.HOURS.toMinutes(1),
TimeUnit.MILLISECONDS.toSeconds(l) % TimeUnit.MINUTES.toSeconds(1));
mindDigits.setText(ms.replaceFirst("^0+(?!$)", ""));
} else {
String s = String.format("%02d",
TimeUnit.MILLISECONDS.toSeconds(l) % TimeUnit.MINUTES.toSeconds(1));
mindDigits.setText(s.replaceFirst("^0+(?!$)", ""));
}
}
// ---Menu methods---
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.menu_main, menu);
return true;
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
// Handle action bar item clicks here. The action bar will
// automatically handle clicks on the Home/Up button, so long
// as you specify a parent activity in AndroidManifest.xml.
int id = item.getItemId();
//noinspection SimplifiableIfStatement
if (id == R.id.action_settings) {
Intent intent = new Intent(MainActivity.this, SettingsActivity.class);
startActivity(intent);
return true;
}
return super.onOptionsItemSelected(item);
}
}
package com.alxmjo.simplymindful.session;
import android.content.Context;
import android.content.SharedPreferences;
import android.preference.PreferenceManager;
public class Session {
private long prepLength;
private long mindLength;
private long prepRemaining;
private long mindRemaining;
// Constructor
public Session(Context context) {
SharedPreferences sharedPreferences = PreferenceManager.getDefaultSharedPreferences(context);
prepLength = 1000 * Long.parseLong(sharedPreferences.getString("preparation_length", ""));
mindLength = 60000 * Long.parseLong(sharedPreferences.getString("mindfulness_length", ""));
prepRemaining = prepLength;
mindRemaining = mindLength;
}
// Getters and setters
public void setPrepRemaining(long prepRemaining) {
this.prepRemaining = prepRemaining;
}
public long getPrepRemaining() {
return prepRemaining;
}
public void setMindRemaining(long mindRemaining) {
this.mindRemaining = mindRemaining;
}
public long getMindRemaining() {
return mindRemaining;
}
public long getPrepLength() {
return prepLength;
}
public long getMindLength() {
return mindLength;
}
}
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