Android Open Source - nice-sample Circular Progress Bar Sample

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License

The source code is released under:

Apache License

Java Source Code

package com.sample.nice;
//from  ww  w. j  a v  a 2s  . c  o  m
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.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;

import com.nice.progress.CircularProgressBar;

/**
 * The Class CircularProgressBarSample.
 *
 * @since 05.04.2014
 */
public class CircularProgressBarSample extends Activity {

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

  private CircularProgressBar mHoloCircularProgressBar;
  private ObjectAnimator mProgressBarAnimator;
  private Button mTwenty;
  private Button mFull;
    private Button mEighty;

  @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 = (CircularProgressBar) findViewById(R.id.holoCircularProgressBar1);

    mTwenty = (Button) findViewById(R.id.twenty);
    mTwenty.setOnClickListener(new OnClickListener() {

            @Override
            public void onClick(View v) {
                if (mProgressBarAnimator != null) {
                    mProgressBarAnimator.cancel();
                }
                animate(mHoloCircularProgressBar, null, 0.2f, 1000);
            }
        });

    mFull = (Button) findViewById(R.id.full);
    mFull.setOnClickListener(new OnClickListener() {

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

        mEighty = (Button) findViewById(R.id.eighty);

        mEighty.setOnClickListener(new OnClickListener() {

            @Override
            public void onClick(View v) {
                if (mProgressBarAnimator != null) {
                    mProgressBarAnimator.cancel();
                }
                animate(mHoloCircularProgressBar, null, 0.8f, 1000);
            }
        });
  }

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

  private void animate(final CircularProgressBar 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());
      }
    });
    mProgressBarAnimator.start();
  }

}

Java Source Code List

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