自定义电池view

public class BatteryViewextends View {

private ContextmContext;

private PaintelectricPaint;

private int wholenum;

private int choosenum;

public BatteryView(Context context) {

super(context);

}

public BatteryView(Context context, AttributeSet attrs) {

super(context, attrs);

init(context);

}

private void init(Context context) {

this.mContext = context;

electricPaint =new Paint();

electricPaint.setAntiAlias(true);

electricPaint.setColor(getResources().getColor(R.color.white));

electricPaint.setStyle(Paint.Style.FILL);

}

@Override

    protected void onDraw(Canvas canvas) {

super.onDraw(canvas);

int height = getHeight();

int width = getWidth();

float strokeWidth = (width - ViewUtils.dip2px(mContext,2f) *2 - ViewUtils.dip2px(mContext,1f) *wholenum) /wholenum;

electricPaint.setColor(getResources().getColor(R.color.white));

electricPaint.setStrokeWidth(strokeWidth);

for (int i =1; i <=choosenum; i++) {

float x = (strokeWidth + ViewUtils.dip2px(mContext,1f)) * i - ViewUtils.dip2px(mContext,3f);

canvas.drawLine(x, ViewUtils.dip2px(mContext,3f), x, height - ViewUtils.dip2px(mContext,3f),electricPaint);

}

}

public void setWholeNum(int num) {

this.wholenum = num;

}

public void setChooseNum(int num) {

this.choosenum = num;

postInvalidate();

}

}