先上效果图:
自定义控件:AttendanceProgressBar
代码如下:
代码如下 | 复制代码 |
publicclassAttendanceProgressBarextendsView { // 画圆环底部的画笔 privatePaint mCirclePaint; // 画圆环的画笔 privatePaint mRingPaint; // 画字体的画笔 privatePaint mTextPaint; // 圆形颜色 privateintmCircleColor; // 圆环颜色 privateintmRingColor; // 半径 privatefloatmRadius; // 圆环半径 privatefloatmRingRadius; // 圆环宽度 privatefloatmStrokeWidth; // 圆心x坐标 privateintmXCenter; // 圆心y坐标 privateintmYCenter; // 字的长度 privatefloatmTxtWidth; // 字的高度 privatefloatmTxtHeight; // 总进度 privateintmTotalProgress =100; // 当前进度 privateintmProgress =80; //字体颜色 privateintmTextColor; // 字体大小 privatefloatmTextSize;
publicAttendanceProgressBar(Context context, AttributeSet attrs) { super(context, attrs); // 获取自定义的属性 initAttrs(context, attrs); initVariable(); }
privatevoidinitAttrs(Context context, AttributeSet attrs) { TypedArray typeArray = context.getTheme().obtainStyledAttributes(attrs, R.styleable.AttendanceProgressBar,0,0); mRadius = typeArray.getDimension(R.styleable.AttendanceProgressBar_radius,80); mStrokeWidth = typeArray.getDimension(R.styleable.AttendanceProgressBar_strokeWidth,10); mCircleColor = typeArray.getColor(R.styleable.AttendanceProgressBar_circleColor,0xFFFFFFFF); mRingColor = typeArray.getColor(R.styleable.AttendanceProgressBar_ringColor,0xFFFFFFFF); mTextColor = typeArray.getColor(R.styleable.AttendanceProgressBar_textColor,0xFF000000); mTextSize = typeArray.getDimension(R.styleable.AttendanceProgressBar_textSize,80);
mRingRadius = mRadius + mStrokeWidth /2; }
privatevoidinitVariable() { mCirclePaint =newPaint(); mCirclePaint.setAntiAlias(true); mCirclePaint.setColor(mCircleColor); // mCirclePaint.setStyle(Paint.Style.FILL); mCirclePaint.setStyle(Paint.Style.STROKE); mCirclePaint.setStrokeWidth(mStrokeWidth);
mRingPaint =newPaint(); mRingPaint.setAntiAlias(true); mRingPaint.setColor(mRingColor); mRingPaint.setStyle(Paint.Style.STROKE); mRingPaint.setStrokeWidth(mStrokeWidth);
mTextPaint =newPaint(); mTextPaint.setAntiAlias(true); mTextPaint.setStyle(Paint.Style.FILL); mTextPaint.setColor(mTextColor); // mTextPaint.setARGB(255, 255, 255, 255); // mTextPaint.setTextSize(mRadius / 2); mTextPaint.setTextSize(mTextSize); Paint.FontMetrics fm = mTextPaint.getFontMetrics(); mTxtHeight = (int) Math.ceil(fm.descent - fm.ascent);
}
@Override protectedvoidonDraw(Canvas canvas) {
mXCenter = getWidth() /2; mYCenter = getHeight() /2;
// canvas.drawCircle(mXCenter, mYCenter, mRadius, mCirclePaint);
canvas.drawCircle(mXCenter, mYCenter, mRingRadius, mCirclePaint); RectF oval =newRectF(); oval.left = (mXCenter - mRingRadius); oval.top = (mYCenter - mRingRadius); oval.right = mRingRadius *2+ (mXCenter - mRingRadius); oval.bottom = mRingRadius *2+ (mYCenter - mRingRadius); canvas.drawArc(oval, -90, ((float) mProgress / mTotalProgress) *360,false, mRingPaint);// // canvas.drawCircle(mXCenter, mYCenter, mRadius + mStrokeWidth / 2, mRingPaint); // String txt = mProgress + "%"; String txt ="16/18"; mTxtWidth = mTextPaint.measureText(txt,0, txt.length()); // canvas.drawText(txt, mXCenter - mTxtWidth / 2, mYCenter + mTxtHeight / 4, mTextPaint); canvas.drawText(txt, mXCenter - mTxtWidth /2, mYCenter + mTxtHeight /4- dipToPx(10), mTextPaint); txt ="出勤人数"; mTxtWidth = mTextPaint.measureText(txt,0, txt.length()); canvas.drawText(txt, mXCenter - mTxtWidth /2, mYCenter + mTxtHeight /4+ dipToPx(10), mTextPaint); }
publicvoidsetProgress(intprogress) { mProgress = progress; postInvalidate(); } privateintdipToPx(intdip) { floatscale = getContext().getResources().getDisplayMetrics().density; return(int) (dip * scale +0.5f * (dip >=0?1: -1)); } } |
因为是自定义控件,所以在attr.xml文件定义了一些控件属性,以便在xml文件中设置这些属性
代码如下:
代码如下 | 复制代码 |
< resources > < declare-styleable name = "AttendanceProgressBar" > < attr name = "radius" format = "dimension" /> < attr name = "strokeWidth" format = "dimension" /> < attr name = "circleColor" format = "color" /> < attr name = "ringColor" format = "color" /> < attr name = "textColor" format = "color" /> < attr name = "textSize" format = "dimension" />
declare-styleable >
resources > |
最后,在xml文件中,可以这样使用
代码如下 | 复制代码 |
android:layout_gravity="center" android:layout_width="100dp" android:layout_height="100dp" app:radius="45dp" app:strokeWidth="5dp" app:textSize="@dimen/text_16" app:textColor="@color/color_333333" app:circleColor="@color/color_d5ebfd" app:ringColor="@color/color_2c9df7"/> |
这只是初步处理,使用时可以根据需求酌情处理。