现在很多APP的会员进度条、等级、积分进度条都是按分段显示的，由于最近自己的项目也用到类似的控件，如下图所示，于是就自己撸了一个！
package progressandanimation.wtt.com.myapplication;
import android.animation.ValueAnimator;
import android.content.Context;
import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.Paint;
import android.util.AttributeSet;
import android.util.Log;
import android.view.View;
/**
* Date:2018/11/27
* Author:WangTingting
* 说明:自定义信用等级
*/
public class MyProgressView extends View {
private Paint mCircleOutPaint;
private Paint mCircleInPaint;
private Paint mLinePaint;
private Paint mDefaltCircleOutPaint;
private Paint mDefaltCircleInPaint;
private Paint mDefaltLinePaint;
private Paint mTvPaint;
private int circleOutRadius = 16;
private int circleInRadius = 8;
private int margin = 60; //左右margin
private float mProgress;
private ValueAnimator animation;
public MyProgressView(Context context) {
super(context);
initView();
}
public MyProgressView(Context context, AttributeSet attrs) {
super(context, attrs);
initView();
}
public MyProgressView(Context context, AttributeSet attrs, int defStyleAttr) {
super(context, attrs, defStyleAttr);
initView();
}
public void initView() {
mCircleOutPaint = new Paint();
mCircleOutPaint.setStyle(Paint.Style.FILL);
mCircleOutPaint.setColor(Color.parseColor("#40A5FF"));
mCircleOutPaint.setAntiAlias(true);
mCircleInPaint = new Paint();
mCircleInPaint.setStyle(Paint.Style.FILL);
mCircleInPaint.setColor(Color.WHITE);
mCircleInPaint.setAntiAlias(true);
mLinePaint = new Paint();
mLinePaint.setColor(Color.parseColor("#40A5FF"));
mLinePaint.setStrokeWidth(8);
mDefaltCircleOutPaint = new Paint();
mDefaltCircleOutPaint.setStyle(Paint.Style.FILL);
mDefaltCircleOutPaint.setColor(Color.parseColor("#858585"));
mDefaltCircleOutPaint.setAntiAlias(true);
mDefaltCircleInPaint = new Paint();
mDefaltCircleInPaint.setStyle(Paint.Style.FILL);
mDefaltCircleInPaint.setColor(Color.WHITE);
mDefaltCircleInPaint.setAntiAlias(true);
mDefaltLinePaint = new Paint();
mDefaltLinePaint.setColor(Color.parseColor("#858585"));
mDefaltLinePaint.setStrokeWidth(8);
mTvPaint = new Paint();
mTvPaint.setColor(Color.parseColor("#858585"));
mTvPaint.setTextSize(sp2px(getContext(), 12));
}
public void setProgress(float progress) {
if (animation == null) {
animation = ValueAnimator.ofFloat(0f, Float.valueOf(progress));
}
if (progress> 0 && progress<= 400) {
mLinePaint.setColor(getResources().getColor(R.color.ring1));
mCircleOutPaint.setColor(getResources().getColor(R.color.ring1));
} else if (progress> 400 && progress<= 700) {
mLinePaint.setColor(getResources().getColor(R.color.ring2));
mCircleOutPaint.setColor(getResources().getColor(R.color.ring2));
} else if (progress> 700 && progress<= 900) {
mLinePaint.setColor(getResources().getColor(R.color.ring3));
mCircleOutPaint.setColor(getResources().getColor(R.color.ring3));
} else if (progress> 900) {
mLinePaint.setColor(getResources().getColor(R.color.ring4));
mCircleOutPaint.setColor(getResources().getColor(R.color.ring4));
}
animation.addUpdateListener(new ValueAnimator.AnimatorUpdateListener() {
@Override
public void onAnimationUpdate(ValueAnimator animation) {
mProgress = (float) animation.getAnimatedValue();
invalidate();
}
});
animation.setDuration(3000);
animation.start();
}
@Override
protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
getSuggestedMinimumWidth();
super.onMeasure(widthMeasureSpec, heightMeasureSpec);
}
@Override
protected void onDraw(Canvas canvas) {
super.onDraw(canvas);
int height= getHeight();
int width= getWidth();
int realWidth= (width- 2 * margin - 8 * circleOutRadius) / 3;
canvas.drawLine(margin + circleOutRadius * 2, height/ 2, width- margin - circleOutRadius * 2, height/ 2, mDefaltLinePaint);
for (int i= 0; i< 4; i++) {
canvas.drawCircle(margin + circleOutRadius * (i* 2 + 1) + realWidth* i, height/ 2, circleOutRadius, mDefaltCircleOutPaint);
canvas.drawCircle(margin + circleOutRadius * (i* 2 + 1) + realWidth* i, height/ 2, circleInRadius, mDefaltCircleInPaint);
}
canvas.drawText("0", margin + circleOutRadius - getTextWidth("0"), height/ 2 - 30, mTvPaint);
canvas.drawText("400", margin + circleOutRadius * 3 + realWidth- getTextWidth("400"), height/ 2 - 30, mTvPaint);
canvas.drawText("700", margin + circleOutRadius * 5 + realWidth* 2 - getTextWidth("700"), height/ 2 - 30, mTvPaint);
canvas.drawText("900+", margin + circleOutRadius * 7 + realWidth* 3 - getTextWidth("900+"), height/ 2 - 30, mTvPaint);
canvas.drawText("低信用", margin + circleOutRadius - getTextWidth("低信用"), height/ 2 + 50, mTvPaint);
canvas.drawText("中信用", margin + circleOutRadius * 3 + realWidth- getTextWidth("中信用"), height/ 2 + 50, mTvPaint);
canvas.drawText("高信用", margin + circleOutRadius * 5 + realWidth* 2 - getTextWidth("高信用"), height/ 2 + 50, mTvPaint);
canvas.drawText("极高信用", margin + circleOutRadius * 7 + realWidth* 3 - getTextWidth("极高信用"), height/ 2 + 50, mTvPaint);
float ratio;
float result= 0;
if (mProgress > 0 && mProgress <= 400) {
ratio= mProgress / 400;
result= margin + circleOutRadius * 2 + (ratio* realWidth);
} else if (mProgress > 400 && mProgress <= 700) {
ratio= (mProgress - 400) / 300;
result= margin + circleOutRadius * 4 + (ratio* realWidth) + realWidth;
} else if (mProgress > 700 && mProgress <= 900) {
ratio= (mProgress - 700) / 200;
result= margin + circleOutRadius * 6 + realWidth* 2 + (ratio* realWidth);
} else if (mProgress > 900) {
result= margin + circleOutRadius * 8 + 3 * realWidth;
}
canvas.drawLine(margin + circleOutRadius, height/ 2, result, height/ 2, mLinePaint);
if (mProgress <= 0) {
return;
}
canvas.drawCircle(margin + circleOutRadius, height/ 2, circleOutRadius, mCircleOutPaint);
canvas.drawCircle(margin + circleOutRadius, height/ 2, circleInRadius, mCircleInPaint);
if (mProgress <= 400) {
return;
}
canvas.drawCircle(margin + circleOutRadius * 3 + realWidth, height/ 2, circleOutRadius, mCircleOutPaint);
canvas.drawCircle(margin + circleOutRadius * 3 + realWidth, height/ 2, circleInRadius, mCircleInPaint);
if (mProgress <= 700) {
return;
}
canvas.drawCircle(margin + circleOutRadius * 5 + realWidth* 2, height/ 2, circleOutRadius, mCircleOutPaint);
canvas.drawCircle(margin + circleOutRadius * 5 + realWidth* 2, height/ 2, circleInRadius, mCircleInPaint);
if (mProgress <= 900) {
return;
}
canvas.drawCircle(margin + circleOutRadius * 7 + realWidth* 3, height/ 2, circleOutRadius, mCircleOutPaint);
canvas.drawCircle(margin + circleOutRadius * 7 + realWidth* 3, height/ 2, circleInRadius, mCircleInPaint);
}
public float getTextWidth(String text) {
return mTvPaint.measureText(text) / 2;
}
public static int sp2px(Context context, float spValue) {
final float fontScale= context.getResources().getDisplayMetrics().scaledDensity;
return (int) (spValue* fontScale+ 0.5f);
}
}
然后在Activity中这样写就实现了
