Android 自定义进度条

效果图如下：



当然实现起来很简单，看看代码吧

public class CicleProgress extends View {

Context context;

int width, height, radius, cy, cx, status = 0, linlen; //屏幕宽高,圆圈半径,圆心y坐标,圆心x坐标

Paint paint, paint_text;

public CicleProgress(Context context, AttributeSet attrs) {
super(context, attrs);
this.context = context;
}

public void renewCicleProgress(int status) {
this.status = status;
invalidate();
}

@Override
protected void onDraw(Canvas canvas) {
super.onDraw(canvas);
canvas.drawColor(Color.WHITE);

Resources resources = context.getResources();
DisplayMetrics dm = resources.getDisplayMetrics();
width = dm.widthPixels;
height = dm.heightPixels;

paint = new Paint();
paint.setStyle(Paint.Style.STROKE);
paint.setAntiAlias(true);
paint.setStrokeWidth(6);
paint.setColor(ContextCompat.getColor(context, R.color.divider));

paint_text = new Paint();
paint_text.setColor(ContextCompat.getColor(context, R.color.black));
paint_text.setAntiAlias(true);
paint_text.setTextSize(ScreenUtil.dp2px(context, 14));

radius = ScreenUtil.dp2px(context, 6);
linlen = ScreenUtil.dp2px(context, 50);
cy = radius * 3;
cx = width / 30;

for (int i = 0; i < 6; i++) {
canvas.drawCircle(cx + linlen * i, cy, radius, paint);
if (i != 5) {
canvas.drawLine(cx + linlen * i + radius, cy, cx + linlen * (i + 1) - radius, cy, paint);
}

}

paint.setColor(ContextCompat.getColor(context, R.color.maincolor));
paint.setStyle(Paint.Style.FILL_AND_STROKE);

switch (status) {
case 1:
canvas.drawText("第一步", width / 20 * 16, cy, paint_text);

canvas.drawCircle(cx, cy + radius, radius, paint);
break;

case 2:
canvas.drawCircle(cx, cy, radius, paint);
canvas.drawCircle(cx + linlen, cy, radius, paint);
canvas.drawLine(cx + radius, cy, cx + linlen - radius, cy, paint);

canvas.drawText("第二步", width / 20 * 16, cy + radius, paint_text);
break;

case 3:
canvas.drawCircle(cx, cy, radius, paint);
canvas.drawCircle(cx + linlen, cy, radius, paint);
canvas.drawCircle(cx + linlen * 2, cy, radius, paint);

canvas.drawLine(cx + radius, cy, cx + linlen - radius, cy, paint);
canvas.drawLine(cx + linlen + radius, cy, cx + linlen * 2 - radius, cy, paint);

canvas.drawText("第三步", width / 20 * 16, cy + radius, paint_text);
break;

case 4:
canvas.drawCircle(cx, cy, radius, paint);
canvas.drawCircle(cx + linlen, cy, radius, paint);
canvas.drawCircle(cx + linlen * 2, cy, radius, paint);
canvas.drawCircle(cx + linlen * 3, cy, radius, paint);

canvas.drawLine(cx + radius, cy, cx + linlen - radius, cy, paint);
canvas.drawLine(cx + linlen + radius, cy, cx + linlen * 2 - radius, cy, paint);
canvas.drawLine(cx + linlen * 2 + radius, cy, cx + linlen * 3 - radius, cy, paint);

canvas.drawText("第四步", width / 20 * 16, cy + radius, paint_text);
break;

case 5:
canvas.drawCircle(cx, cy, radius, paint);
canvas.drawCircle(cx + linlen, cy, radius, paint);
canvas.drawCircle(cx + linlen * 2, cy, radius, paint);
canvas.drawCircle(cx + linlen * 3, cy, radius, paint);
canvas.drawCircle(cx + linlen * 4, cy, radius, paint);

canvas.drawLine(cx + radius, cy, cx + linlen - radius, cy, paint);
canvas.drawLine(cx + linlen + radius, cy, cx + linlen * 2 - radius, cy, paint);
canvas.drawLine(cx + linlen * 2 + radius, cy, cx + linlen * 3 - radius, cy, paint);
canvas.drawLine(cx + linlen * 3 + radius, cy, cx + linlen * 4 - radius, cy, paint);

canvas.drawText("第五步", width / 20 * 16, cy + radius, paint_text);
break;
case 6:
canvas.drawCircle(cx, cy, radius, paint);
canvas.drawCircle(cx + linlen, cy, radius, paint);
canvas.drawCircle(cx + linlen * 2, cy, radius, paint);
canvas.drawCircle(cx + linlen * 3, cy, radius, paint);
canvas.drawCircle(cx + linlen * 4, cy, radius, paint);
canvas.drawCircle(cx + linlen * 5, cy, radius, paint);

canvas.drawLine(cx + radius, cy, cx + linlen - radius, cy, paint);
canvas.drawLine(cx + linlen + radius, cy, cx + linlen * 2 - radius, cy, paint);
canvas.drawLine(cx + linlen * 2 + radius, cy, cx + linlen * 3 - radius, cy, paint);
canvas.drawLine(cx + linlen * 3 + radius, cy, cx + linlen * 4 - radius, cy, paint);
canvas.drawLine(cx + linlen * 4 + radius, cy, cx + linlen * 5 - radius, cy, paint);

canvas.drawText("第六步", width / 20 * 16, cy + radius, paint_text);
break;
}

}

}