RiseNumberTextView.java

/*
 * Copyright (c) 2014. Marshal Chen.
 */

package com.marshalchen.common.uimodule.risenumber;

import android.content.Context;
import android.util.AttributeSet;
import android.widget.TextView;

import com.nineoldandroids.animation.ValueAnimator;

import java.text.DecimalFormat;


/**
 * Created by lee on 2014/7/29.
 */
public class RiseNumberTextView extends TextView implements RiseNumberBase{




    private static final int STOPPED = 0;

    private static final int RUNNING = 1;

    private int mPlayingState = STOPPED;

    private float number;

    private float fromNumber;

    private long duration=1500;
    /**
     * 1.int 2.float
     */
    private int numberType=2;

    private DecimalFormat   fnum;

    private EndListener mEndListener=null;

    final static int[] sizeTable = { 9, 99, 999, 9999, 99999, 999999, 9999999,
            99999999, 999999999, Integer.MAX_VALUE };

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

    public RiseNumberTextView(Context context,AttributeSet attr){
        super(context,attr);
    }

    public RiseNumberTextView(Context context,AttributeSet attr,int defStyle)
    {
        super(context,attr,defStyle);
    }

    public interface EndListener {
        public void onEndFinish();
    }



    public boolean isRunning() {
        return (mPlayingState == RUNNING);
    }




    private void runFloat(){
        ValueAnimator valueAnimator = ValueAnimator.ofFloat(fromNumber, number);
        valueAnimator.setDuration(duration);

        valueAnimator.addUpdateListener(new ValueAnimator.AnimatorUpdateListener() {
            @Override
            public void onAnimationUpdate(ValueAnimator valueAnimator) {

                setText(fnum.format(Float.parseFloat(valueAnimator.getAnimatedValue().toString())));
                if (valueAnimator.getAnimatedFraction()>=1){
                    mPlayingState = STOPPED;
                    if (mEndListener!=null)
                    mEndListener.onEndFinish();
                }
            }


        });
        valueAnimator.start();
    }
    private void runInt(){
        ValueAnimator valueAnimator = ValueAnimator.ofInt((int)fromNumber, (int)number);
        valueAnimator.setDuration(duration);

        valueAnimator.addUpdateListener(new ValueAnimator.AnimatorUpdateListener() {
            @Override
            public void onAnimationUpdate(ValueAnimator valueAnimator) {

                setText(valueAnimator.getAnimatedValue().toString());
                if (valueAnimator.getAnimatedFraction()>=1){
                    mPlayingState = STOPPED;
                    if (mEndListener!=null)
                    mEndListener.onEndFinish();
                }
            }
        });
        valueAnimator.start();
    }

    static int sizeOfInt(int x) {
        for (int i = 0;; i++)
            if (x <= sizeTable[i])
                return i + 1;
    }

    @Override
    protected void onFinishInflate() {
        super.onFinishInflate();
        fnum=   new DecimalFormat("##0.00");
    }

    @Override
    public void start() {

        if (!isRunning()) {
            mPlayingState = RUNNING;
            if (numberType==1)
                runInt();
            else
                runFloat();
        }
    }


    @Override
    public RiseNumberTextView withNumber(float number) {

        this.number=number;
        numberType=2;
        if (number>1000){
            fromNumber=number-(float)Math.pow(10,sizeOfInt((int)number)-2);
        }else {
            fromNumber=number/2;
        }

        return this;
    }

    @Override
    public RiseNumberTextView withNumber(int number) {
        this.number=number;
        numberType=1;
        if (number>1000){
            fromNumber=number-(float)Math.pow(10,sizeOfInt((int)number)-2);
        }else {
            fromNumber=number/2;
        }

        return this;

    }

    @Override
    public RiseNumberTextView setDuration(long duration) {
        this.duration=duration;
        return this;
    }

    @Override
    public void setOnEnd(EndListener callback) {
        mEndListener=callback;
    }


}