Loading Dots Text View

import android.annotation.TargetApi;
import android.content.Context;
import android.os.Build;
import android.os.Handler;
import android.os.Looper;
import android.util.AttributeSet;
import android.widget.TextView;

/**
 * Written by  Michael Fotiadis
 * https://gist.github.com/MikeFot
 */
public class DotsTextView extends TextView {

    private static final int INTERVAL = 350;
    private static final String[] VALUES = {"   ", ".  ", ".. ", "..."};
    private int mCurrentPosition;
    private String mPrefix = "";

    private Handler mHandler;
    Runnable mStatusChecker = new Runnable() {
        @Override
        public void run() {
            updateStatus();
            mHandler.postDelayed(mStatusChecker, INTERVAL);
        }
    };

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

    public DotsTextView(Context context, AttributeSet attrs) {
        this(context, attrs, 0);
    }

    public DotsTextView(Context context, AttributeSet attrs, int defStyleAttr) {
        this(context, attrs, defStyleAttr, 0);
    }

    @TargetApi(Build.VERSION_CODES.LOLLIPOP)
    public DotsTextView(Context context, AttributeSet attrs, int defStyleAttr, int defStyleRes) {
        super(context, attrs, defStyleAttr, defStyleRes);

        init();
    }

    private void init() {
        this.mCurrentPosition = 0;
        this.mHandler = new Handler(Looper.getMainLooper());
    }

    public void startRepeatingTask() {
        mHandler.removeCallbacks(mStatusChecker);
        mStatusChecker.run();
    }

    public void stopRepeatingTask() {
        mHandler.removeCallbacks(mStatusChecker);
    }

    public void setPrefix(String mPrefix) {
        this.mPrefix = mPrefix;
    }

    private void updateStatus() {

        if (mCurrentPosition == VALUES.length) {
            mCurrentPosition = 0;
        }

        setText(String.format("%s%s", mPrefix, VALUES[mCurrentPosition]));
        mCurrentPosition++;
    }

}

Simple text view that animates 3 trailing dots after a loading message.