本文实例为大家分享了Android实现横向柱状统计图的具体代码，供大家参考，具体内容如下

碰到一个项目需要用到统计图功能，比较简单就自定义写了一个。没有写过多的样式和功能，仅有简单的横向柱状统计图。

传入数据后大致样式如下：

/**横向柱状统计图 * Created by Administrator on 2018/1/16 0016. */public class HorizontalChartView extends View { /** * 间隔线画笔 */ private Paint paint; /** * 线的颜色 */ private int color_line = Color.rgb(230, 230, 230); /** * 字的颜色 */ private int color_font = Color.rgb(51, 51, 51); /** * 比例图颜色 */ private int color_plan = Color.rgb(22, 85, 164); /** * 比例图画笔 */ private Paint paint_plan; /** * 比例图高度 */ private int plan_height; /** * 初始化比例 */ private Float[] ratio = {0f, 0f, 0f, 0f, 0f, 0f, 0f, 0f, 0f, 0f, 0f, 0f}; /** * 文字画笔1 */ private Paint paint_font; /** * 文字画笔2 */ private Paint paint_font2; /** * 线的条数 */ private int line_num = 11; /** * 比例数 */ private String ratio_num = "0"; /** * 月份 */ private String month_num = "1月"; public HorizontalChartView(Context context) { super(context); } public HorizontalChartView(Context context, @Nullable AttributeSet attrs) { super(context, attrs); init(context, attrs); } public HorizontalChartView(Context context, @Nullable AttributeSet attrs, int defStyleAttr) { super(context, attrs, defStyleAttr); init(context, attrs); } @RequiresApi(api = Build.VERSION_CODES.LOLLIPOP) public HorizontalChartView(Context context, @Nullable AttributeSet attrs, int defStyleAttr, int defStyleRes) { super(context, attrs, defStyleAttr, defStyleRes); init(context, attrs); } /** * 初始化 * * @param context * @param attrs */ public void init(Context context, AttributeSet attrs) { paint = new Paint(); paint.setColor(color_line); paint_plan = new Paint(); paint_plan.setColor(color_plan); paint_font = new Paint(); paint_font.setColor(color_font); paint_font.setTextSize(DensityUtils.dp2px(context, 12)); paint_font.setAntiAlias(true); paint_font.setTextAlign(Paint.Align.CENTER); paint_font2 = new Paint(); paint_font2.setColor(color_font); paint_font2.setTextSize(DensityUtils.dp2px(context, 12)); paint_font2.setAntiAlias(true); paint_font2.setTextAlign(Paint.Align.RIGHT); } @Override protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { super.onMeasure(widthMeasureSpec, heightMeasureSpec); } @Override protected void onDraw(Canvas canvas) { super.onDraw(canvas); int width = getWidth(); int height = getHeight(); int lift_width = (int) (width * 0.15); int line_width = (int) (width * 0.78); //获取底部文字信息 Paint.FontMetrics fm = paint_font.getFontMetrics(); int line_length = (int) (height - (fm.bottom - fm.top) - 4); plan_height = (int) (line_length / 12 * 0.3); for (int i = 0; i < line_num; i++) { canvas.save(); if (i == 0) { ratio_num = "0"; } else { ratio_num = i + "0"; } //底部百分比数字 canvas.drawText(ratio_num, lift_width + i * line_width / 10, height - 10, paint_font); //网络线 canvas.drawLine(lift_width + i * line_width / 10, 0, lift_width + i * line_width / 10, line_length, paint); canvas.restore(); } //获取月份文字信息 Paint.FontMetrics fm1 = paint_font2.getFontMetrics(); for (int n = 12; n > 0; n--) { canvas.save(); month_num = n + "月"; //左侧月份 canvas.drawText(month_num, lift_width / 4 * 3, ((line_length / 12)) * (13 - n) - line_length / 24 + (fm1.bottom - fm1.top) / 2, paint_font2); //比例图 canvas.drawRect(lift_width, line_length / 12 * (13 - n) - (line_length / 24 + plan_height / 2) + fm1.bottom, line_width * (ratio[n - 1] / 100) + lift_width, line_length / 12 * (13 - n) - (line_length / 24 + plan_height / 2) + plan_height + fm1.bottom, paint_plan); canvas.restore(); } } /** * 传入比例信息 * * @param ratio */ public void setRatio(Float[] ratio) { this.ratio = ratio; } }

以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持。