android 中RectF构造函数参数说明

记录贴:

Android RectF类的构造函数参数说明:

以下是API中的说明:

public RectF (float left, float top, float right, float bottom)

Added in API level 1

Create a new rectangle with the specified coordinates. Note: no range checking is performed, so the caller must ensure that left <= right and top <= bottom.

Parameters
left The X coordinate of the left side of the rectangle
top The Y coordinate of the top of the rectangle
right The X coordinate of the right side of the rectangle
bottom The Y coordinate of the bottom of the rectangle
比如new一个RecF类:

RectF rf1 = new RectF(100,100,200,200);

则在屏幕中的位置示意图为:

android 中RectF构造函数参数说明