Android小红点-阿里云

Android高仿QQ小红点

效果图上一篇文章分析了QQ侧滑栏的实现，文章地址： https://blog.csdn.net/u013700502/article/details/73162684 ，本篇继续来实现一下QQ小红点的功能，闲言少叙，先上效果图：代码已上传至Github：高仿QQ小红点，如对您有帮助，欢迎star~感...

Android自定义控件 | 小红点的三种实现（终结）

上一篇通过在父控件绘制前景的方式展示小红点，在布局文件中配置标记控件就能为任意子控件添加小红点。实现方案是”布局文件中配置带小红点控件 id，在父控件中获取它们的坐标，并在其右上角绘制圆圈“。但这个方案有一个漏洞，当子控件做动画，即子控件尺寸发生变化时，小红点不会联动。效果入下图：这是自定义控件系列...

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Android自定义控件 | 小红点的三种实现（下）

此文标题想了好久久久，本起名为《读原码长知识 | 小红点的一种实现》，但纠结了下，觉得还是应该隶属于自定义控件系列~~上篇介绍了两种实现小红点的方案，分别是多控件叠加和单控件绘制，其中第二个方案有一个缺点：类型绑定。导致它无法被不同类型控件所复用。这篇从父控件的角度出发，提出一个新的方案：容器控件绘...

Android自定义控件 | 小红点的三种实现（上）

小红点用于通知未读消息，在应用中到处可见。本文将介绍三种实现方案。分别是：多控件方案、单控件绘制方案、容器控件绘制方案。不知道你会更偏向哪种方案？Demo 使用 Kotlin 编写，Kotlin系列教程可以点击这里这是自定义控件系列教程的第五篇，系列文章目录如下：Android自定义控件 | Vie...

android消息通知更新（小红点，数字提醒）之badgeview

上面这种数字提醒想必大家都接触过,那么怎么实现这个效果呢,刚开始的时候想的是自己写一个自定义的控件linearlayout,里面放两个imageview。我刚接触android开发的时候这么做过，后来才知道有badgeview这个东西，用起来很方便。代码实现也很简单textView = (TextV...

Android开发技巧——使用Drawable实现小红点

在产品的设计中，总难免需要我们开发去实现各种各样的小红点，小红点，小红点。通常，我们可能会这样做：用一个View实现小红点，放在相对布局里，设置好内边距或外边距，让它位于图片的右上角。或者是给图片套一个相对布局，设置好图片的外边距，然后把表示小红点的View放在这个相对布局里面的右上角。这个...

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