public class CirCleProgressBar extends View {

private Paint circlePaint;

private Paint textPaint;

private int circleColor;//圆弧颜色

private int circleBgColor;//圆弧背景颜色

private float circleWidth;//圆弧宽度

private float circleBgWidth;//圆弧背景宽度

private int textColor;//字体颜色

private float textSize;//字体大小

private int totalAngle;//总角度

private int startAngle;//开始角度

private float currentProgress;//当前进度

private float maxProgress;//最大进度

private float section;//分段

private float currentAngle;//当前角度

private float lastAngle;

private ValueAnimator progressAnimator;//圆弧动画

private int duration = 1000;//动画时长

private boolean isDefaultText;//是否设置文字显示的值

private String mTextValue;//字体显示的值

public CirCleProgressBar(Context context) {

this(context, null);

}

public CirCleProgressBar(Context context, AttributeSet attrs) {

this(context, attrs, 0);

}

public CirCleProgressBar(Context context, AttributeSet attrs, int defStyleAttr) {

super(context, attrs, defStyleAttr);

circlePaint = new Paint();

textPaint = new Paint();

TypedArray typedArray = context.obtainStyledAttributes(attrs, R.styleable.CirCleProgressBar);

circleColor = typedArray.getColor(R.styleable.CirCleProgressBar_circle_color, Color.RED);

circleBgColor = typedArray.getColor(R.styleable.CirCleProgressBar_circle_bg_color, Color.YELLOW);

circleWidth = typedArray.getDimension(R.styleable.CirCleProgressBar_circle_width, 2);

circleBgWidth = typedArray.getDimension(R.styleable.CirCleProgressBar_circle_bg_width, 2);

textColor = typedArray.getColor(R.styleable.CirCleProgressBar_text_color, Color.BLUE);

textSize = typedArray.getDimension(R.styleable.CirCleProgressBar_text_size, 10);

totalAngle = typedArray.getInteger(R.styleable.CirCleProgressBar_total_angle, 360);

startAngle = typedArray.getInteger(R.styleable.CirCleProgressBar_start_angle, 0);

currentProgress = typedArray.getFloat(R.styleable.CirCleProgressBar_current_progress, 0);

maxProgress = typedArray.getFloat(R.styleable.CirCleProgressBar_max_progress, 100);

setCurrentProgress(currentProgress);

setMaxProgress(maxProgress);

//

typedArray.recycle();

}

@SuppressLint("DrawAllocation")

@Override

protected void onDraw(Canvas canvas) {

super.onDraw(canvas);

/**

* 画最外层的大圆环

*/

int centre = getWidth() / 2; // 获取圆心的x坐标

int radius = (int) (centre - circleWidth / 2) - 2; // 圆环的半径

circlePaint.setColor(circleBgColor);

circlePaint.setStyle(Paint.Style.STROKE);

circlePaint.setAntiAlias(true);

circlePaint.setStrokeCap(Paint.Cap.ROUND);// 圆头

circlePaint.setStrokeWidth(circleBgWidth);

RectF oval = new RectF(centre - radius - 1, centre - radius - 1, centre + radius + 1, centre + radius + 1); // 用于定义的圆弧的形状和大小的界限

//背景圆

canvas.drawArc(oval, startAngle, totalAngle, false, circlePaint);

//数据圆

circlePaint.setStrokeWidth(circleWidth);

circlePaint.setColor(circleColor);

canvas.drawArc(oval, startAngle, currentAngle, false, circlePaint);

//

textPaint.setAntiAlias(true);

textPaint.setColor(textColor);

textPaint.setTextSize(textSize);

float textWidth = textPaint.measureText((int) currentProgress + "");

if(!isDefaultText) {

canvas.drawText(String.valueOf((int)currentProgress), centre - textWidth / 2, centre + textSize / 2, textPaint);

}else {

canvas.drawText(mTextValue, centre - textWidth / 2, centre + textSize / 2, textPaint);

}

//

invalidate();

}

public float getMaxProgress(){

return maxProgress;

}

public void setMaxProgress(float maxProgress){

if(maxProgress < 0){

throw new IllegalArgumentException("max not less than 0");

}

this.maxProgress = maxProgress;

section = totalAngle / maxProgress;

}

public void setAnimationDuration(int duration){

this.duration = duration;

}

public void setCurrentProgress(float progress){

if(progress >= 0){

this.currentProgress = progress;

if(progress > maxProgress){

progress = maxProgress;

}

lastAngle = currentAngle;

setAnimation(lastAngle, progress * section, duration);

}

}

private void setAnimation(float last, float current, int duration){

progressAnimator = ValueAnimator.ofFloat(last, current);

progressAnimator.setDuration(duration);

progressAnimator.setTarget(currentAngle);

progressAnimator.addUpdateListener(new ValueAnimator.AnimatorUpdateListener() {

@Override

public void onAnimationUpdate(ValueAnimator valueAnimator) {

currentAngle = (float) valueAnimator.getAnimatedValue();

currentProgress = currentAngle / section;

}

});

progressAnimator.start();

}

public int getCircleColor() {

return circleColor;

}

public void setCircleColor(int circleColor) {

this.circleColor = circleColor;

}

public int getCircleBgColor() {

return circleBgColor;

}

public void setCircleBgColor(int circleBgColor) {

this.circleBgColor = circleBgColor;

}

public float getCircleWidth() {

return circleWidth;

}

public void setCircleWidth(float circleWidth) {

this.circleWidth = circleWidth;

}

public float getCircleBgWidth() {

return circleBgWidth;

}

public void setCircleBgWidth(float circleBgWidth) {

this.circleBgWidth = circleBgWidth;

}

public int getTextColor() {

return textColor;

}

public void setTextColor(int textColor) {

this.textColor = textColor;

}

public float getTextSize() {

return textSize;

}

public void setTextSize(float textSize) {

this.textSize = textSize;

}

/**

*@param isText 为true,自定义设置字体显示

*@param text

*/

public void setText(boolean isText,String text){

isDefaultText = isText;

mTextValue = text;

}

}