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() {@Overridepublic 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() {@Overridepublic 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;}@Overrideprotected void onFinishInflate() {super.onFinishInflate();}@Overridepublic void start() {if (!isRunning()) {mPlayingState = RUNNING;if (numberType == 1)runInt();elserunFloat();}}@Overridepublic RiseNumberTextView withNumber(float number, boolean flag) {this.number = number;this.flags = flag;numberType = 2;fromNumber = 0;return this;}@Overridepublic RiseNumberTextView withNumber(float number) {System.out.println(number);this.number = number;numberType = 2;fromNumber = 0;return this;}@Overridepublic RiseNumberTextView withNumber(int number) {this.number = number;numberType = 1;fromNumber = 0;return this;}@Overridepublic RiseNumberTextView setDuration(long duration) {this.duration = duration;return this;}@Overridepublic 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;@Overrideprotected 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() {@Overridepublic 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