Android 仿余额宝数字跳动动画效果完整代码

一：想都不用想的，有图有真相，看着爽了，在看下面源码

二：实例源码分析

①：首先定义接口

package com.demo.tools.view;
/**
* 数字动画自定义
*
* @author zengtao 2015年7月17日 上午11:48:27
*
*/
public interface RiseNumberBase {
 public void start();
 public RiseNumberTextView withNumber(float number);
 public RiseNumberTextView withNumber(float number, boolean flag);
 public RiseNumberTextView withNumber(int number);
 public RiseNumberTextView setDuration(long duration);
 public void setOnEnd(RiseNumberTextView.EndListener callback);
}

②：自定义控件

package com.demo.tools.view;
import android.animation.ValueAnimator;
import android.content.Context;
import android.util.AttributeSet;
import android.widget.TextView;
import com.demo.tools.Utils;
/**
* 数字动画自定义
*
* @author zengtao 2015年7月17日 上午11:48:03
*
*/
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 = 1000;
 /**
  * 1.int 2.float
  */
 private int numberType = 2;
 private boolean flags = true;
 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) {
       if (flags) {
         setText(Utils.format(",##0.00").format(Double.parseDouble(valueAnimator.getAnimatedValue().toString())) + "");
         if (valueAnimator.getAnimatedValue().toString().equalsIgnoreCase(number + "")) {
           setText(Utils.format(",##0.00").format(Double.parseDouble(number + "")));
         }
       } else {
         setText(Utils.format("##0.00").format(Double.parseDouble(valueAnimator.getAnimatedValue().toString())) + "");
         if (valueAnimator.getAnimatedValue().toString().equalsIgnoreCase(number + "")) {
           setText(Utils.format("##0.00").format(Double.parseDouble(number + "")));
         }
       }
       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();
 }
 @Override
 public void start() {
   if (!isRunning()) {
     mPlayingState = RUNNING;
     if (numberType == 1)
       runInt();
     else
       runFloat();
   }
 }
 @Override
 public RiseNumberTextView withNumber(float number, boolean flag) {
   this.number = number;
   this.flags = flag;
   numberType = 2;
   fromNumber = 0;
   return this;
 }
 @Override
 public RiseNumberTextView withNumber(float number) {
   System.out.println(number);
   this.number = number;
   numberType = 2;
   fromNumber = 0;
   return this;
 }
 @Override
 public RiseNumberTextView withNumber(int number) {
   this.number = number;
   numberType = 1;
   fromNumber = 0;
   return this;
 }
 @Override
 public RiseNumberTextView setDuration(long duration) {
   this.duration = duration;
   return this;
 }
 @Override
 public void setOnEnd(EndListener callback) {
   mEndListener = callback;
 }
}

③工具类的编写

package com.demo.tools;
import java.math.RoundingMode;
import java.text.DecimalFormat;
/**
* 配置文件
* @author zengtao 2015年7月17日 上午11:47:44
*
*/
public class Utils {
 /**
  * 格式化
  */
 private static DecimalFormat dfs = null;
 public static DecimalFormat format(String pattern) {
   if (dfs == null) {
     dfs = new DecimalFormat();
   }
   dfs.setRoundingMode(RoundingMode.FLOOR);
   dfs.applyPattern(pattern);
   return dfs;
 }
}

三：主界面调用

package com.demo.ui;
import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import com.demo.tools.view.RiseNumberTextView;
/**
* 数字动画
*
* @author zengtao 2015年7月17日 上午11:48:54
*
*/
public class MainActivity extends Activity {
 private RiseNumberTextView number1, number2, number3, number4, number5;
 private Button start;
 @Override
 protected void onCreate(Bundle savedInstanceState) {
   super.onCreate(savedInstanceState);
   setContentView(R.layout.main_activity);
   initView();
 }
 private void initView() {
   number1 = (RiseNumberTextView) findViewById(R.id.number1);
   number2 = (RiseNumberTextView) findViewById(R.id.number2);
   number3 = (RiseNumberTextView) findViewById(R.id.number3);
   number4 = (RiseNumberTextView) findViewById(R.id.number4);
   number5 = (RiseNumberTextView) findViewById(R.id.number5);
   start = (Button) findViewById(R.id.start);
   start.setOnClickListener(listener);
 }
 OnClickListener listener = new OnClickListener() {
   @Override
   public void onClick(View v) {
     if (v == start) {
       initData();
     }
   }
 };
 private void initData() {
   number1.withNumber(12.3f).start();
   number2.withNumber(16.3f).start();
   number3.withNumber(10.3f).start();
   number4.withNumber(18.3f).start();
   number5.withNumber(17.3f).start();
 }
}

四：总结

demo下载地址：http://xiazai.jb51.net/201711/yuanma/Demo.rar

以上所述是小编给大家介绍的Android 仿余额宝数字跳动动画效果完整代码网站的支持！

来源：http://blog.csdn.net/u011546655/article/details/46925791