Smooth Progress Bar Animation

Question

I\'m trying to implement a smooth animation for my ProgressBar, but when I increase the time (30 seconds), the animation is no longer smooth.

Example wi

Answer 1

here is snippet for my countdown timer using smooth animation you can modify as per your need please follow below :

private void setProgressBarValues() {
        progressBarCircle.setMax((int) (timeCountInMilliSeconds / 10));
        progressBarCircle.setProgress((int) (timeCountInMilliSeconds / 10));
        Log.e("progres", "" + (timeCountInMilliSeconds / 10));
    }

private void startCountDownTimer() {

        smoothAnimation = ObjectAnimator.ofInt(progressBarCircle, "progress", progressBarCircle.getProgress(), progressBarCircle.getMax());
        smoothAnimation.setDuration(500);
        smoothAnimation.setInterpolator(new AccelerateInterpolator());

        countDownTimer = new CountDownTimer(timeCountInMilliSeconds, 10) {
            @Override
            public void onTick(long millisUntilFinished) {

                Log.e("getMax", "" + progressBarCircle.getMax());
                Log.e("getprogres", "" + progressBarCircle.getProgress());
                textViewTime.setText(hmsTimeFormatter(millisUntilFinished));
                progressBarCircle.setProgress((int) (timeCountInMilliSeconds / 10 - millisUntilFinished / 10));
            }

            @Override
            public void onFinish() {

                textViewTime.setText(hmsTimeFormatter(timeCountInMilliSeconds));
                // call to initialize the progress bar values
                setProgressBarValues();
                // hiding the reset icon
                buttonReset.setEnabled(false);
                // making edit text editable
                editTextMinute.setEnabled(true);
                // changing the timer status to stopped
                status = TimerStatus.STOPPED;
                smoothAnimation.end();
            }

        }.start();
        smoothAnimation.start();
        countDownTimer.start();
    }

Summary:

1. setMax and setProgress

2. setAnimation to show from progess to max values of progressbar

3. create a timer with call back of ~10 millisec

4. update progress in onTick i.e total - finished

Answer 2

If you have Android N and above, you can use :

progressBar.setProgress(newProgress, true)

Docs:

Sets the current progress to the specified value, optionally animating the visual position between the current and target values.

Animation does not affect the result of getProgress(), which will return the target value immediately after this method is called.

https://developer.android.com/reference/android/widget/ProgressBar.html#setProgress(int,%20boolean)

Answer 3

Just set android:max="1000" and do ObjectAnimator progressAnimator = ObjectAnimator.ofInt(mProgressBar, "progress", 1000, 0);

in this case you will animate on 1/1000 by each step which in 10 time smoothly when default 100 percent scale. and it looks much better

Answer 4

You can make custom clas like this :

public class CustomProgressBar extends ProgressBar {
private static final long DEFAULT_DELAY = 500;
private static final long DEFAULT_DURATION = 1000;

public CustomProgressBar(Context context) {
    super(context);
}

public CustomProgressBar(Context context, AttributeSet attrs) {
    super(context, attrs);
}

public CustomProgressBar(Context context, AttributeSet attrs, int defStyleAttr) {
    super(context, attrs, defStyleAttr);
}

public synchronized void setProgress(float progress) {
    super.setProgress((int) progress);
}

@Override
public synchronized void setProgress(int progress) {
    super.setProgress(progress);
}

public void startLcpProgressAnim(int progressTo) {
   startLcpProgressAnim(DEFAULT_DELAY, progressTo);
}

public void startLcpProgressAnim(long delay, int progressTo) {
   startLcpProgressAnim(DEFAULT_DURATION, delay, progressTo);
}

public void startLcpProgressAnim(long duration, long delay, float progressTo) {
    ObjectAnimator animation = ObjectAnimator.
            ofFloat(this, "progress",
                    (float)this.getProgress(), progressTo);
    animation.setDuration(duration);
    animation.setStartDelay(delay);
    animation.start();
}
}

Answer 5

Use the library may its help you give the time in which you want to fill the progress bar its very smooth with no lag but you little bit customize to use this.

Just add the dependency to your build.gradle:

compile 'com.carlosmuvi.segmentedprogressbar:library:0.2'

Next, add it to your layout

  <com.carlosmuvi.segmentedprogressbar.SegmentedProgressBar
      android:id="@+id/segmented_progressbar"
      android:layout_width="match_parent"
      android:layout_height="5dp"/>

Finally, customize it programatically and play it!

segmentedProgressBar = (SegmentedProgressBar) findViewById(R.id.segmented_progressbar);

// number of segments in your bar
segmentedProgressBar.setSegmentCount(7); 

//empty segment color
segmentedProgressBar.setContainerColor(Color.BLUE); 
//fill segment color
segmentedProgressBar.setFillColor(Color.GREEN); 

//play next segment specifying its duration
segmentedProgressBar.playSegment(5000);

//pause segment
segmentedProgressBar.pause();

//set filled segments directly
segmentedProgressBar.setCompletedSegments(3);

GoToLibrary

Answer 6

If you change progress value each time by 1 (for example from 45 to 46) you won't see the animation. You'd better change progress by 100 points (or maybe other), for this you just need to multiply your max value by 100 and each progress value to 100 too. For example:

    private void setProgressMax(ProgressBar pb, int max) {
        pb.setMax(max * 100);
    }

    private void setProgressAnimate(ProgressBar pb, int progressTo) 
    {
        ObjectAnimator animation = ObjectAnimator.ofInt(pb, "progress", pb.getProgress(), progressTo * 100);
        animation.setDuration(500);
        animation.setInterpolator(new DecelerateInterpolator());
        animation.start();
    }