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【转】用App Inventor 2实现电子围栏功能 - App应用开发 - 清泛IT社区,为创新赋能!

在行空板《家庭安全相册》项目中,第四部分是手机APP监护人部分。这部分需要完成手机获取家庭成员传送回来的位置后,计算是否在安全的电子围栏范围内。因为电子围栏是相对复杂的部分,因此独立一章详细说明。 App In...
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How do you disable viewport zooming on Mobile Safari?

...he long tail here but it might be worth pointing out that this needs to be applied at the "top level" page. If you have this meta tag applied to an iframe, it won't work unless the meta tag is also applied to the top-most page. – founddrama Feb 11 '13 at 14:43 ...
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Android How to adjust layout in Full Screen Mode when softkeyboard is visible

...ea about this issue? I also tried return r.bottom. – Pankaj Sep 26 '14 at 12:42 2 ...
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Call a controller function from a directive without isolated scope in AngularJS

..., you can use $eval instead of $parse (with a non-isolated scope): scope.$apply(function() { scope.$eval(attrs.confirmAction); }); Or better, simply just use $apply, which will $eval()uate its argument against the scope: scope.$apply(attrs.confirmAction); Fiddle ...
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javascript scroll event for iPhone/iPad?

...= function() { alert("Scrolled"); }; // etc (See also https://developer.apple.com/library/content/documentation/AppleApplications/Reference/SafariWebContent/HandlingEvents/HandlingEvents.html) share | ...
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Zoom in on a point (using scale and translate)

...lechange); offsetY = -(zoomPointY * scalechange); So really you can just pan over down and to the right when you zoom in, by a factor of how much you zoomed in, relative to the point you zoomed at. share | ...
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How to disable mouse scroll wheel scaling with Google Maps API

... Sadly, this does not work as expected with StreetViewPanorama Map, as putting in scrollwheel: false, disables scroll zoom, but also disables scrolling the page as it is still catching the scroll somehow. – Solomon Closson Sep 6 '17 at 6:18...
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Effective C++ 改善程序与设计的55个具体做法 - IT书籍推荐 - 清泛网 - 专...

...编码风格,高质量C++编程必读书籍。Effective C++ :https: pan.baidu.com s 1gfJn3kJMoreEffective C++ :https: pan.baidu.com s 1jHVcs2E 提升C++编码水平、编码风格,高质量C++编程必读书籍。 Effective C++ :https://pan.baidu.com/s/1gfJn3kJ More Effective C++ ...
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Disable double-tap “zoom” option in browser on touch devices

... Note (as of 2020-08-04): this solution does not appear to work in iOS Safari v12+. I will update this answer and delete this note once I find a clear solution that covers iOS Safari. CSS-only solution Add touch-action: manipulation to any element on which you want to disab...
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Move layouts up when soft keyboard is shown?

... getWindow().setSoftInputMode(WindowManager.LayoutParams.SOFT_INPUT_ADJUST_PAN); share | improve this answer | follow | ...