liuhang1234 / customview

学习hencoder 仍物线大佬

Android 开发进阶: 自定义 View 1-1 绘制基础

Canvas.drawXXX() 和 Paint 基础
drawXXX() 系列方法和 Paint 的基础掌握了，就能够应付简单的绘制需求。它们主要包括：

Canvas 类下的所有 draw- 打头的方法，例如 drawCircle() drawBitmap()。
Paint 类的几个最常用的方法。具体是：
Paint.setStyle(Style style) 设置绘制模式
Paint.setColor(int color) 设置颜色
Paint.setStrokeWidth(float width) 设置线条宽度
Paint.setTextSize(float textSize) 设置文字大小
Paint.setAntiAlias(boolean aa) 设置抗锯齿开关

Circle

    paint.setColor(Color.BLUE);
    canvas.drawCircle(100,100,50,paint);

React

    左上右下画笔 
    drawRect(float left, float top, float right, float bottom, Paint paint) 画矩形

速度差值器

     interpolators[0] = new AccelerateDecelerateInterpolator();
        interpolators[1] = new LinearInterpolator();
        interpolators[2] = new AccelerateInterpolator();
        interpolators[3] = new DecelerateInterpolator();
        interpolators[4] = new AnticipateInterpolator();
        interpolators[5] = new OvershootInterpolator();
        interpolators[6] = new AnticipateOvershootInterpolator();
        interpolators[7] = new BounceInterpolator();
        interpolators[8] = new CycleInterpolator(0.5f);
        interpolators[9] = PathInterpolatorCompat.create(interpolatorPath);
        interpolators[10] = new FastOutLinearInInterpolator();
        interpolators[11] = new FastOutSlowInInterpolator();
        interpolators[12] = new LinearOutSlowInInterpolator();