比分显示控件,自带两种动画

import android.content.Context;
import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.Paint;
import android.graphics.Paint.FontMetrics;
import android.graphics.RectF;
import android.util.AttributeSet;
import android.view.View;

/**
* 使用说明 <br/>
* 1.XML定义<br/>
* <com.longyuan.sdkdemo.CirclePieView <br/>
* android:id="@+id/cpv" <br/>
* android:layout_width="100dp" <br/>
* android:layout_height="100dp" <br/>
* android:layout_marginLeft="10dp" <br/>
* android:layout_marginTop="10dp" > <br/>
* </com.longyuan.sdkdemo.CirclePieView> <br/>
* 2.设置比分<br/>
* CirclePieView.setScore(4, 3, true, 1);<br/>
* @author niexiaoqiang
*/
public class CirclePieView extends View {
public int animationType = 1;
public static final int E_C = 10;
private int mWidth = 0;
private int mHeight = 0;
private int leftColor = Color.rgb(255, 255, 0);
private int rightColor = Color.rgb(255, 0, 255);
private int textBgColor = Color.rgb(255, 255, 255);
private int bgColor = Color.rgb(0, 0, 0);
//不能大于99
private int leftScore = 0;
//不能大于99
private int rightScore = 0;
private Paint textPaint;
private Paint leftPaint;
private Paint rightPaint;
private Paint textBgPaint;
private Paint bgPaint;
private RectF drawRect = new RectF();
private int circleWidth = 10;
private int leftCircle = 180;
private int rightCircle = 180;
private int currentC = 360;
//是否已经设置比分如果没有设置，则不绘制文字以及圆环
private boolean initedScrore = false;
private boolean stopped = true;

private void init(Context context) {
textPaint = new Paint();
textPaint.setAntiAlias(true);
textPaint.setColor(Color.BLACK);
textPaint.setFakeBoldText(true);
leftPaint = new Paint();
leftPaint.setAntiAlias(true);
leftPaint.setColor(leftColor);
rightPaint = new Paint();
rightPaint.setAntiAlias(true);
rightPaint.setColor(rightColor);
textBgPaint = new Paint();
textBgPaint.setAntiAlias(true);
textBgPaint.setColor(textBgColor);
bgPaint = new Paint();
bgPaint.setAntiAlias(true);
bgPaint.setColor(bgColor);
circleWidth = dip2px(context, 10);
}

public static int dip2px(Context context, float dipValue) {
final float scale = context.getResources().getDisplayMetrics().density;
return (int) (dipValue * scale + 0.5f);
}

/**
* 如果inited==false将不绘制比分，以及圆环
* @param initedScrore
*/
public void setInitedScrore(boolean initedScrore) {
this.initedScrore = initedScrore;
this.invalidate();
}

/**
* 调用该方法设置比分
* @param leftScore 左边的比分
* @param rightScore 右边的比分
* @param needAnimation 是否需要动画
* @param animationType 0: 旋转，1:展开
*/
public void setScore(int leftScore, int rightScore, boolean needAnimation, int animationType) {
this.leftScore = leftScore;
this.rightScore = rightScore;
this.animationType = animationType;
//计算占比
if (leftScore == 0 && rightScore == 0) {
leftCircle = 180;
} else {
leftCircle = (int) (((float) leftScore / (float) (leftScore + rightScore)) * (float) 360);
leftCircle = leftCircle % 2 == 0 ? leftCircle : leftCircle - 1;
}
rightCircle = 360 - leftCircle;
if (needAnimation) {
currentC = 0;
stopped = false;
}
setInitedScrore(true);
}

@Override
public void onDraw(Canvas canvas) {
super.onDraw(canvas);
//背景
canvas.drawCircle(mWidth / 2, mHeight / 2, (mWidth - 2) / 2, bgPaint);
if (initedScrore) {
//画圆
drawRect.set(0, 0, mWidth, mHeight);
int currentRightCircle = rightCircle * currentC / 360;
if (animationType == 0) {
canvas.drawArc(drawRect, 180 - leftCircle / 2, currentC, true, leftPaint);
if (360 - currentC <= currentRightCircle) {
canvas.drawArc(drawRect, 0 - rightCircle / 2, currentRightCircle, true, rightPaint);
}
} else {
//画左边时以180°为中心,上下分别进行一次
canvas.drawArc(drawRect, 180, leftCircle / 2 * currentC / 360, true, leftPaint);
canvas.drawArc(drawRect, 180, -leftCircle / 2 * currentC / 360, true, leftPaint);
//画右边时候以0°为中心,上下分别进行一次
canvas.drawArc(drawRect, 0, rightCircle / 2 * currentC / 360, true, rightPaint);
canvas.drawArc(drawRect, 0, -rightCircle / 2 * currentC / 360, true, rightPaint);
}
}
//绘制文字背景
canvas.drawCircle(mWidth / 2, mHeight / 2, (mWidth - circleWidth * 2) / 2, textBgPaint);
if (initedScrore) {
drawText(canvas);
}
currentC += E_C;
if (currentC < 360) {
postInvalidate();
return;
}
if (currentC > 360) {
currentC = 360;
}
if (!stopped) {
postInvalidate();
stopped = true;
}
}

/**
* 画出文字
* @param canvas
*/
private void drawText(Canvas canvas) {
/////////////最后画出文字//////////////
int allTextWidth = mWidth - circleWidth * 2;
textPaint.setTextSize(allTextWidth / 4 * currentC / 360);
FontMetrics fontMetrics = textPaint.getFontMetrics();
float textBaseLine = mHeight / 2 - ((fontMetrics.top - fontMetrics.bottom) / 2 + fontMetrics.bottom);
//冒号
String mindleString = ":";
float mindleTextWidth = textPaint.measureText(mindleString);
float midleTextleft = (allTextWidth - mindleTextWidth) / 2 + circleWidth;
canvas.drawText(mindleString, midleTextleft, textBaseLine, textPaint);
//标线
//		canvas.drawLine(midleTextleft, 0, midleTextleft, mHeight, rightPaint);
//		canvas.drawLine(midleTextleft + mindleTextWidth, 0, midleTextleft + mindleTextWidth, mHeight, rightPaint);
//左边文字
String leftString = getLeftString();
float leftTextWidth = textPaint.measureText(leftString);
float leftTextLeft = (midleTextleft - leftTextWidth) / 2 + circleWidth / 2;
canvas.drawText(leftString, leftTextLeft, textBaseLine, textPaint);
//标线
//		canvas.drawLine(leftTextLeft, 0, leftTextLeft, mHeight, rightPaint);
//		canvas.drawLine(leftTextLeft + leftTextWidth, 0, leftTextLeft + leftTextWidth, mHeight, rightPaint);
//右边的文字
String rightString = getRightString();
float rightTextWidth = textPaint.measureText(rightString);
float rightTextLeft = (midleTextleft + mindleTextWidth) + (allTextWidth - (midleTextleft + mindleTextWidth) - rightTextWidth) / 2 + circleWidth / 2;
canvas.drawText(rightString, rightTextLeft, textBaseLine, textPaint);
//标线
//		canvas.drawLine(rightTextLeft, 0, rightTextLeft, mHeight, rightPaint);
//		canvas.drawLine(rightTextLeft + rightTextWidth, 0, rightTextLeft + rightTextWidth, mHeight, rightPaint);
}

private String getLeftString() {
if (leftScore < 10) {
return "0" + leftScore;
}
return leftScore + "";
}

private String getRightString() {
if (rightScore < 10) {
return "0" + rightScore;
}
return rightScore + "";
}

@Override
protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
super.onMeasure(widthMeasureSpec, heightMeasureSpec);
mHeight = getMeasuredHeight();
mWidth = getMeasuredWidth();
}

public CirclePieView(Context context, AttributeSet attrs, int defStyleAttr) {
super(context, attrs, defStyleAttr);
this.init(context);
}

public CirclePieView(Context context, AttributeSet attrs) {
super(context, attrs);
this.init(context);
}

public CirclePieView(Context context) {
super(context);
this.init(context);
}

}