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App Inventor 2 TaifunImage 拓展,图像高级处理功能,剪裁,压缩,翻转等 ...

...压缩 参考代码如下: (注:图片可拖动至编程区,自动还原代码块) 图片缩放并Base64化 参考代码如下: (注:图片可拖动至编程区,自动还原代码块) 其中,用到的SimpleBase64拓展,点此查...
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Programmatically set left drawable in a TextView

... Using Kotlin: You can create an extension function or just use setCompoundDrawablesWithIntrinsicBounds directly. fun TextView.leftDrawable(@DrawableRes id: Int = 0) { this.setCompoundDrawablesWithIntrinsicBounds(id, 0, 0, 0) }...
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Check if application is installed - Android

... Those who are looking for Kotlin solution can use this method, Here I have shared full code, and also handled enabled status. Check If Application is Installed in Android Kotlin fun isAppInstalled(packageName: String, context: Context): Boolean { ...
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Java 理论与实践: 线程池与工作队列 - 更多技术 - 清泛网 - 专注C/C++及内核技术

...线程池有助于实现最佳资源利用率,贴在我们多线程 Java 编程论坛上最常见的问题之一是“怎样创建线程池?”。几乎在每个服务器应用程序中都会出现线程池和工作队列问题。本文中,Brian Goetz 探讨了线程池的动机、一些基本...
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也来说说ReactOS的调试 - 更多技术 - 清泛网 - 专注C/C++及内核技术

...要大家慢慢的研究,探索….. 老鸟飞过 也不知道是放在编程这块呀,还是放在调试那块,想了下编程这块常来放在这吧 附上改过后的fDebugReactOS 调试
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how to rotate a bitmap 90 degrees

... Short extension for Kotlin fun Bitmap.rotate(degrees: Float): Bitmap { val matrix = Matrix().apply { postRotate(degrees) } return Bitmap.createBitmap(this, 0, 0, width, height, matrix, true) } And usage: val rotatedBitmap = bitmap.ro...
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LINGO使用指南 - 更多技术 - 清泛网 - 专注C/C++及内核技术

LINGO使用指南LINGO使用指南LINGO是用来求解线性和非线性优化问题的简易工具。LINGO内置了一种建立最优化模型的语言,可以简便地表达大规模问题,利用LIN... LINGO是用来求解线性和非线性优化问题的简易工具。LINGO内置了一种建...
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How to determine the screen width in terms of dp or dip at runtime in Android?

... Answer in kotlin: context?.let { val displayMetrics = it.resources.displayMetrics val dpHeight = displayMetrics.heightPixels / displayMetrics.density val dpWidth = displayMetrics.widthPixels / displayMetrics....
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get the latest fragment in backstack

... Thanks. The most elegant answer. Added it here for Kotlin lovers stackoverflow.com/a/47336504/1761406 – Shirane85 Nov 16 '17 at 18:14 ...
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How to get Resource Name from Resource id

...om.sample.app:id/radio1: getResources().getResourceName(int resid); In Kotlin Now : val name = v.context.resources.getResourceEntryName(v.id) share | improve this answer | ...