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，希望对大家有所帮助，如果大家有任何疑问请给我留言，小编会及时回复大家的。在此也非常感谢大家对我们网站的支持！

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