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Android：尝试切换活动时意外退出

[英]Android: Unexpectedly Quit When Trying to Switch Activity

原文 2012-04-03 13:19:18 7 1 java/ android

I'm new to posting, but have been using the site for help for a while now. 我是新来的发布者，但是已经使用网站一段时间了。 So thanks for that! 因此，谢谢！

I'm working on a new app, got everything running well. 我正在开发一个新应用，一切运行正常。 It's a kids' soundboard. 这是孩子们的音板。 2 pages of imagebuttons in a relative layout, with onclick listeners which triggers SoundPool. 2页图像按钮的相对布局，带有onclick侦听器，可触发SoundPool。

My question is this: 我的问题是这样的：

in testing I've discovered if you're finger is anywhere on the screen where a button is not (say pressing on the background) and then you try to touch a button (multitouch) ... the button press doesn't register. 在测试中，我发现您的手指是否在屏幕上没有按钮的任何位置（例如，按背景），然后尝试触摸按钮（多点触摸）……按钮的按下未注册。 Any way to fix this? 有任何解决这个问题的方法吗？

Thanks! 谢谢！

1 个解决方案

You have to cover additional event types for multi-touch, if you are not covering below Actions, you are not covering multi-touch 您必须涵盖多点触控的其他事件类型，如果您未涵盖“操作”下方的内容，则不涵盖多点触控

MotionEvent.ACTION_POINTER_DOWN: This event happens for any additional finger that touches the screen after the first finger touches MotionEvent.ACTION_POINTER_DOWN：第一个手指触摸后，任何其他触摸屏幕的手指都会发生此事件

MotionEvent.ACTION_POINTER_UP :This gets fired when a finger is lifted up from the screen and more than one finger is touching the screen. MotionEvent.ACTION_POINTER_UP ：当手指从屏幕上抬起并且多个手指触摸屏幕时，将触发此事件。

The explanation is quite tedious. 解释很繁琐。 I suggest you to google multi-touch for android. 我建议您使用google multi-touch for android。 One helpful link is: http://android-developers.blogspot.in/2010/06/making-sense-of-multitouch.html 一个有用的链接是： http : //android-developers.blogspot.in/2010/06/making-sense-of-multitouch.html