Android的 - OnTouch做工作 [英] Android - OnTouch Do Work

问题描述

我有一些code已经让我非常接近了什么我试着去实现。但也有一些问题。我想要做的是，当按钮被pssed并举行$ P $，它会不断地调用一个方法AdvanceLog（）。问题是，在ACTION_DOWN运动事件不会继续被调用。会发生什么事是，当你preSS不放，第一运动ACTION_DOWN和每一个动作之后，在继续按住是ACTION_MOVE。
这会引起一些问题，因为我没有真正寻找的移动操作，更使刚的repetetive下来的动作。有什么建议？

  advanceButton.setOnTouchListener（新View.OnTouchListener（）{            @覆盖
            公共布尔onTouch（视图V，MotionEvent事件）
            {
                INT计数器= 0;
                如果（event.getAction（）== MotionEvent.ACTION_DOWN || event.getAction（）== MotionEvent.ACTION_MOVE）
                {
                    fwdTouchCounter ++;
                    AdvanceLog（真实，真实）;
                    尝试
                    {
                        如果（fwdTouchCounter→5）
                            视频下载（30）;
                        其他
                            视频下载（800）;
                    }
                    赶上（InterruptedException的E）
                    {                        e.printStackTrace（）;
                    }
                }
                否则如果（event.getAction（）== MotionEvent.ACTION_UP）
                    fwdTouchCounter = 0;                返回false;            }
        }）;
 

解决方案

在你的 ACTION_DOWN 触摸事件，断火，调用本地方法的线程。在此方法中不断地读取类变量（布尔是最简单的），如果该变量，我们称之为 m_advanceLog 是真实的，继续处理（进你的日志我猜）。在你的 ACTION_UP 触摸事件，设置 m_advanceLog 为false，应停止循环，并允许线程退出。

请记住，这仅仅是一个好主意，如果没有用户界面的变化，othwerwise一些额外的工作需要，由于线程交互。

I have some code that has got me very close to what Im trying to achieve. But there are a few issues. What I want to do is, when a Button is pressed and held, it will continuously call a method AdvanceLog(). The problem is, the ACTION_DOWN motion event does not continue to get called. What happens is, when you press and hold, the first motion is ACTION_DOWN and every motion thereafter while still holding down is ACTION_MOVE. This is causing some issues, as I am not REALLY looking for the move action, more so just the repetetive down action. Any suggestions?

advanceButton.setOnTouchListener(new View.OnTouchListener() {

            @Override
            public boolean onTouch(View v, MotionEvent event) 
            {
                int counter=0;
                if(event.getAction()==MotionEvent.ACTION_DOWN || event.getAction()==MotionEvent.ACTION_MOVE)
                {
                    fwdTouchCounter++;
                    AdvanceLog(true, true);
                    try 
                    {
                        if(fwdTouchCounter>5)                           
                            Thread.sleep(30);
                        else
                            Thread.sleep(800);
                    } 
                    catch (InterruptedException e) 
                    {

                        e.printStackTrace();
                    }
                }
                else if(event.getAction()==MotionEvent.ACTION_UP)
                    fwdTouchCounter=0;

                return false;

            }
        });

解决方案

On your ACTION_DOWN touch event, fire off a thread that calls a local method. Inside this method constantly read a class variable (boolean is easiest) and if that variable, let's call it m_advanceLog is true, continue to process (advancing your log I'm guessing). In your ACTION_UP touch event, set m_advanceLog to false which should stop your loop and allow the thread to exit.

Keep in mind that this is only a good idea if there aren't user interface changes, othwerwise some additional work is needed due to the thread interaction.

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