CircularProgressBarSample.java

package de.passsy.circularprogressbarsample;

import java.util.Random;

import android.animation.Animator;
import android.animation.Animator.AnimatorListener;
import android.animation.ObjectAnimator;
import android.animation.ValueAnimator;
import android.animation.ValueAnimator.AnimatorUpdateListener;
import android.app.Activity;
import android.content.Intent;
import android.graphics.Color;
import android.os.Bundle;
import android.util.Log;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.CompoundButton;
import android.widget.CompoundButton.OnCheckedChangeListener;
import android.widget.Switch;
import de.passsy.holocircularprogressbar.HoloCircularProgressBar;

/**
 * The Class CircularProgressBarSample.
 * 
 * @author Pascal Welsch
 * @since 05.03.2013
 */
public class CircularProgressBarSample extends Activity {

	private static final String TAG = CircularProgressBarSample.class.getSimpleName();

	/**
	 * The Switch button.
	 */
	private Button mColorSwitchButton;

	private HoloCircularProgressBar mHoloCircularProgressBar;
	private ObjectAnimator mProgressBarAnimator;
	protected boolean mAnimationHasEnded = false;
	private Button mZero;
	private Button mOne;
	private Switch mAutoAnimateSwitch;

	/*
	 * (non-Javadoc)
	 * 
	 * @see android.app.Activity#onCreate(android.os.Bundle)
	 */
	@Override
	protected void onCreate(final Bundle savedInstanceState) {
		if (getIntent() != null) {
			final Bundle extras = getIntent().getExtras();
			if (extras != null) {
				final int theme = extras.getInt("theme");
				if (theme != 0) {
					setTheme(theme);
				}
			}
		}

		super.onCreate(savedInstanceState);
		setContentView(R.layout.activity_home);

		mHoloCircularProgressBar = (HoloCircularProgressBar) findViewById(R.id.holoCircularProgressBar1);

		mColorSwitchButton = (Button) findViewById(R.id.random_color);
		mColorSwitchButton.setOnClickListener(new OnClickListener() {

			@Override
			public void onClick(final View v) {
				switchColor();
			}
		});

		mZero = (Button) findViewById(R.id.zero);
		mZero.setOnClickListener(new OnClickListener() {

			@Override
			public void onClick(View v) {
				if (mProgressBarAnimator != null) {
					mProgressBarAnimator.cancel();
				}
				animate(mHoloCircularProgressBar, null, 0f, 1000);
				mHoloCircularProgressBar.setMarkerProgress(0f);

			}
		});

		mOne = (Button) findViewById(R.id.one);
		mOne.setOnClickListener(new OnClickListener() {

			@Override
			public void onClick(View v) {
				if (mProgressBarAnimator != null) {
					mProgressBarAnimator.cancel();
				}
				animate(mHoloCircularProgressBar, null, 1f, 1000);
				mHoloCircularProgressBar.setMarkerProgress(1f);
				mHoloCircularProgressBar.setProgressColor(Color.CYAN);

			}
		});

		mAutoAnimateSwitch = (Switch) findViewById(R.id.auto_animate_switch);
		mAutoAnimateSwitch.setOnCheckedChangeListener(new OnCheckedChangeListener() {

			@Override
			public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
				if (isChecked) {

					mOne.setEnabled(false);
					mZero.setEnabled(false);

					animate(mHoloCircularProgressBar, new AnimatorListener() {

						@Override
						public void onAnimationCancel(final Animator animation) {
							animation.end();
						}

						@Override
						public void onAnimationEnd(final Animator animation) {
							if (!mAnimationHasEnded) {
								animate(mHoloCircularProgressBar, this);
							} else {
								mAnimationHasEnded = false;
							}
						}

						@Override
						public void onAnimationRepeat(final Animator animation) {
						}

						@Override
						public void onAnimationStart(final Animator animation) {
						}
					});
				} else {
					mAnimationHasEnded = true;
					mProgressBarAnimator.cancel();

					mOne.setEnabled(true);
					mZero.setEnabled(true);
				}

			}
		});

	}

	/**
	 * generates random colors for the ProgressBar
	 */
	protected void switchColor() {
		Random r = new Random();
		int randomColor = Color.rgb(r.nextInt(256), r.nextInt(256), r.nextInt(256));
		mHoloCircularProgressBar.setProgressColor(randomColor);

		randomColor = Color.rgb(r.nextInt(256), r.nextInt(256), r.nextInt(256));
		mHoloCircularProgressBar.setProgressBackgroundColor(randomColor);
	}

	/**
	 * Animate.
	 * 
	 * @param progressBar
	 *            the progress bar
	 * @param listener
	 *            the listener
	 */
	private void animate(final HoloCircularProgressBar progressBar, final AnimatorListener listener) {
		final float progress = (float) (Math.random() * 2);
		int duration = 3000;
		animate(progressBar, listener, progress, duration);
	}

	private void animate(final HoloCircularProgressBar progressBar, final AnimatorListener listener,
			final float progress, final int duration) {

		mProgressBarAnimator = ObjectAnimator.ofFloat(progressBar, "progress", progress);
		mProgressBarAnimator.setDuration(duration);

		mProgressBarAnimator.addListener(new AnimatorListener() {

			@Override
			public void onAnimationCancel(final Animator animation) {
			}

			@Override
			public void onAnimationEnd(final Animator animation) {
				progressBar.setProgress(progress);
			}

			@Override
			public void onAnimationRepeat(final Animator animation) {
			}

			@Override
			public void onAnimationStart(final Animator animation) {
			}
		});
		if (listener != null) {
			mProgressBarAnimator.addListener(listener);
		}
		mProgressBarAnimator.reverse();
		mProgressBarAnimator.addUpdateListener(new AnimatorUpdateListener() {

			@Override
			public void onAnimationUpdate(final ValueAnimator animation) {
				progressBar.setProgress((Float) animation.getAnimatedValue());
			}
		});
		progressBar.setMarkerProgress(progress);
		mProgressBarAnimator.start();
	}

	/*
	 * (non-Javadoc)
	 * 
	 * @see android.app.Activity#onCreateOptionsMenu(android.view.Menu)
	 */
	@Override
	public boolean onCreateOptionsMenu(final Menu menu) {
		// Inflate the menu; this adds items to the action bar if it is present.
		getMenuInflater().inflate(R.menu.circular_progress_bar_sample, menu);
		return true;
	}

	@Override
	public boolean onOptionsItemSelected(MenuItem item) {

		switch (item.getItemId()) {
		case R.id.menu_switch_theme:
			switchTheme();
			break;

		default:
			Log.w(TAG, "couldn't map a click action for " + item);
			break;
		}

		return super.onOptionsItemSelected(item);
	}

	/**
	 * Switch theme.
	 */
	public void switchTheme() {

		final Intent intent = getIntent();
		final Bundle extras = getIntent().getExtras();
		if (extras != null) {
			final int theme = extras.getInt("theme", -1);
			if (theme == R.style.AppThemeLight) {
				getIntent().removeExtra("theme");
			} else {
				intent.putExtra("theme", R.style.AppThemeLight);
			}
		} else {
			intent.putExtra("theme", R.style.AppThemeLight);
		}
		finish();
		startActivity(intent);
	}

}