标签:自定义 float private Paint length import circle android
写了一个还不错的自定义控件,用来展示完成度或能力值,程序中配置好所占百分比,图中就可以用外面的圆环来显示百分比,效果还是不错的~
代码实现如下:
package com.xys.fastword.view;
import android.content.Context;
import android.graphics.Canvas;
import android.graphics.Paint;
import android.graphics.Paint.Style;
import android.graphics.RectF;
import android.util.AttributeSet;
import android.view.View;
public class CircleProgress extends View {
private int measureHeigth;
private int measureWidth;
private Paint mCirclePaint;
private float mCircleXY;
private float mRadius;
private Paint mArcPaint;
private RectF mArcRectF;
private float mSweepAngle;
private float mSweepValue;
private Paint mTextPaint;
private String mShowText;
private float mShowTextSize;
public CircleProgress(Context context, AttributeSet attrs, int defStyleAttr) {
super(context, attrs, defStyleAttr);
}
public CircleProgress(Context context, AttributeSet attrs) {
super(context, attrs);
}
public CircleProgress(Context context) {
super(context);
}
@Override
protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
measureWidth = MeasureSpec.getSize(widthMeasureSpec);
measureHeigth = MeasureSpec.getSize(heightMeasureSpec);
setMeasuredDimension(measureWidth, measureHeigth);
initView();
}
@Override
protected void onDraw(Canvas canvas) {
super.onDraw(canvas);
canvas.drawCircle(mCircleXY, mCircleXY, mRadius, mCirclePaint);
canvas.drawArc(mArcRectF, 270, mSweepAngle, false, mArcPaint);
canvas.drawText(mShowText, 0, mShowText.length(), mCircleXY, mCircleXY
+ (mShowTextSize / 4), mTextPaint);
canvas.restore();
}
private void initView() {
float length = 0;
if (measureHeigth >= measureWidth) {
length = measureWidth;
} else {
length = measureHeigth;
}
mCircleXY = length / 2;
mRadius = (float) (length * 0.5 / 2);
mCirclePaint = new Paint();
mCirclePaint.setAntiAlias(true);
mCirclePaint.setColor(getResources().getColor(
android.R.color.holo_blue_bright));
mArcRectF = new RectF((float) (length * 0.1), (float) (length * 0.1),
(float) (length * 0.9), (float) (length * 0.9));
mSweepAngle = (mSweepValue / 100f) * 360f;
mArcPaint = new Paint();
mArcPaint.setAntiAlias(true);
mArcPaint.setColor(getResources().getColor(
android.R.color.holo_blue_bright));
mArcPaint.setStrokeWidth((float) (length * 0.1));
mArcPaint.setStyle(Style.STROKE);
mShowText = setShowText();
mShowTextSize = setShowTextSize();
mTextPaint = new Paint();
mTextPaint.setTextSize(mShowTextSize);
mTextPaint.setTextAlign(Paint.Align.CENTER);
}
private float setShowTextSize() {
this.invalidate();
return 20;
}
private String setShowText() {
this.invalidate();
return "ssssss";
}
public void forceInvalidate() {
this.invalidate();
}
public void setSweepValue(float sweepValue) {
mSweepValue = sweepValue;
this.invalidate();
}
}
以上。
标签:自定义,float,private,Paint,length,import,circle,android 来源: https://blog.51cto.com/u_9894631/2790736
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