setOnTouchListener监听器问题

Question

javaandroid 监听器 

Answer 1

如果要执行里面的else，offsetX要在-5到5之间，而Math.abs(offsetX) > Math.abs(offsetY)，所以offsetY不会在-5和5之间。

Answer 2

if (Math.abs(offsetX) > Math.abs(offsetY)) {
                        if (offsetX < -5) {
                            System.out.println("left");
                        } else if (offsetX > 5) {
                            System.out.println("right");
                        } 
                        
                        } else {
                            if (offsetY < -5) {
                                System.out.println("up");
                            } else if (offsetY > 5) {
                                System.out.println("down");
                            }
                         
                    }

Answer 3

if (Math.abs(offsetX) > Math.abs(offsetY)) {
                        if (offsetX < -5) {
                            System.out.println("left");
                        } else if (offsetX > 5) {
                            System.out.println("right");
                        } 
                    } else {
                            if (offsetY < -5) {
                                System.out.println("up");
                            } else if (offsetY > 5) {
                                System.out.println("down");
                            }
                        }