如何实现双击在安卓 [英] how to implement double click in android

问题描述

我做的，我希望显示在单次触摸的特定信息以及使用android.How双触控另一条消息，我可以实现它的一个项目。

我的样品code低于

 如果（firstTap）{
            thisTime = SystemClock.u`enter code here`ptimeMillis（）;
            firstTap = FALSE;
        }其他{
            prevTime = thisTime;
            thisTime = SystemClock.uptimeMillis（）;

            //检查thisTime大于prevTime
            //只是柜面系统时钟复位至零
            如果（thisTime＆GT; prevTime）{

                //检查时间是我们最大延迟时间内
                如果（（thisTime  -  prevTime）＆LT; = DOUBLE_CLICK_MAX_DELAY）{

                    //我们已经检测到双击！
                    Toast.makeText（AddLocation.this，枪王DETECTED !!!，Toast.LENGTH_LONG）.show（）;
                    //使你的逻辑HERE !!!!

                }其他{
                    //否则重置firstTap
                    firstTap = TRUE;
                }
            }其他{
                firstTap = TRUE;
            }
        }
        返回false;
 

解决方案

你为什么不使用长preSS事件insted的同时提交您的UI。 阅读答案在这里，我强烈推荐使用此功能。

或者如果它无论如何你想实现你有两个选择，一个是<一个href="http://stackoverflow.com/questions/5191456/how-can-i-place-double-click-event-on-imageview-in-android">this使用布尔 二是使用手势监听。

I am doing a project in which i want to display a particular message on single touch and another message on double touch using android.How can i implement it.

My sample code is below

if(firstTap){
            thisTime = SystemClock.u`enter code here`ptimeMillis();
            firstTap = false;
        }else{
            prevTime = thisTime;
            thisTime = SystemClock.uptimeMillis();

            //Check that thisTime is greater than prevTime
            //just incase system clock reset to zero
            if(thisTime > prevTime){

                //Check if times are within our max delay
                if((thisTime - prevTime) <= DOUBLE_CLICK_MAX_DELAY){

                    //We have detected a double tap!
                    Toast.makeText(AddLocation.this, "DOUBLE TAP DETECTED!!!", Toast.LENGTH_LONG).show();
                    //PUT YOUR LOGIC HERE!!!!

                }else{
                    //Otherwise Reset firstTap
                    firstTap = true;
                }
            }else{
                firstTap = true;
            }
        }
        return false;

解决方案

Why dont you use Long Press event insted while its Recommanded UI. Read Answer Here , I strongly recommand to use this.

Or if its anyhow you want to implement you have two options , one is this using boolean and second is using Gesture Listener.

这篇关于如何实现双击在安卓的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！