自定义View（圆形进度条）
/**
* Created by dell
* on 2020/3/17
* The package is com.video.universalplayer
* This Class is ...
*/
public class CircleProgressbarextends View {
private PaintmCirclePaint;
private PaintmTextPaint;
private PaintmArcPaint;
private float mPercentProgress;
private int mInnerColor;
private int mOutColor;
private int mInnerCircleWidth;
private int mOutCircleWidth;
private Stringtext ="下载";
public CircleProgressbar(Context context) {
this(context,null);
}
public CircleProgressbar(Context context,@Nullable AttributeSet attrs) {
this(context, attrs,0);
}
public CircleProgressbar(Context context,@Nullable AttributeSet attrs,int defStyleAttr) {
super(context, attrs, defStyleAttr);
TypedArray typedArray = context.obtainStyledAttributes(attrs, R.styleable.CircleProgressbar);
mInnerColor = typedArray.getColor(R.styleable.CircleProgressbar_innerCircleColor, ContextCompat.getColor(getContext(), R.color.colorPrimary));
mOutColor = typedArray.getColor(R.styleable.CircleProgressbar_outCircleColor, ContextCompat.getColor(getContext(), R.color.colorAccent));
mInnerCircleWidth = (int) typedArray.getDimension(R.styleable.CircleProgressbar_innerCircleWidth, DensityUtil.dip2px(getContext(),2));
mOutCircleWidth = (int) typedArray.getDimension(R.styleable.CircleProgressbar_innerCircleWidth, DensityUtil.dip2px(getContext(),2));
typedArray.recycle();
initPaint();
}
private void initPaint() {
mCirclePaint =new Paint();
mCirclePaint.setAntiAlias(true);
mCirclePaint.setColor(mInnerColor);
mCirclePaint.setStrokeWidth(mInnerCircleWidth);
mCirclePaint.setStyle(Paint.Style.STROKE);
mTextPaint =new TextPaint();
mTextPaint.setAntiAlias(true);
mTextPaint.setTextSize(DensityUtil.dip2px(getContext(),12));
mArcPaint =new Paint();
mArcPaint.setAntiAlias(true);
mArcPaint.setColor(mOutColor);
mArcPaint.setStrokeWidth(mOutCircleWidth);
mArcPaint.setStyle(Paint.Style.STROKE);
}
@Override
protected void onMeasure(int widthMeasureSpec,int heightMeasureSpec) {
super.onMeasure(widthMeasureSpec, heightMeasureSpec);
int width = MeasureSpec.getSize(widthMeasureSpec);
int height = MeasureSpec.getSize(heightMeasureSpec);
setMeasuredDimension(width > height ? height : width, width > height ? height : width);
}
@Override
protected void onDraw(Canvas canvas) {
drawCircle(canvas);
drawText(canvas);
drawArc(canvas);
}
/**
* 画圆
*
* @param canvas
*/
private void drawCircle(Canvas canvas) {
float cx = getWidth() >>1;
float cy = getHeight() >>1;
canvas.drawCircle(cx, cy, (getWidth() -mOutCircleWidth) >>1,mCirclePaint);
}
/**
* 画文字
*
* @param canvas
*/
private void drawText(Canvas canvas) {
Rect textBounds =new Rect();
mTextPaint.getTextBounds(text,0,text.length(), textBounds);
int dx = getWidth() /2 - textBounds.width() /2;
Paint.FontMetricsInt fontMetrics =mTextPaint.getFontMetricsInt();
int dy = (fontMetrics.bottom - fontMetrics.top) /2 - fontMetrics.bottom;
int baseLine = getHeight() /2 + dy;
canvas.drawText(text, dx, baseLine,mTextPaint);
}
/**
* 画进度
*
* @param canvas
*/
private void drawArc(Canvas canvas) {
RectF rectF =new RectF(mOutCircleWidth >>1,mOutCircleWidth >>1,
getWidth() - (mOutCircleWidth >>1), getHeight() - (mOutCircleWidth >>1));
float sweepAngle =mPercentProgress *360;
canvas.drawArc(rectF,0, sweepAngle,false,mArcPaint);
}
public synchronized void setCurrentProgress(float currentProgress) {
this.mPercentProgress = currentProgress;
if (mPercentProgress >0) {
text = (int) (mPercentProgress *100) +"%";
}
invalidate();
}
public synchronized void setText(String text) {
this.text = text;
invalidate();
}
public synchronized String getText() {
return text;
}
}
