如何Facebook的Messenger的绘制chathead？ （Android版） [英] How does Facebook Messenger draw a chathead? (Android)

问题描述

我知道这已经被问了很多次这里的计算器，但我着迷的Facebook Messenger的如何绘制Chatheads。

I know this has already been asked a lot of times here on StackOverflow, but I'm fascinated how Facebook Messenger draws the Chatheads.

我跟着这个教程以放置的ImageView为覆盖。然而，拖拽它的非常不畅，不像Chatheads这表现出无比流畅的动画效果。

I followed this tutorial to place an ImageView as an overlay. However, dragging it around is very sluggish, unlike Chatheads which show extremely smooth animation.

打开显示GPU视图更新，在开发人员选项选项闪烁的屏幕，同时被拖动一个Chathead。然而，拖着ImageView的不会触发任何闪烁。

Turning on the "Show GPU view updates" option in Developer options flashes the screen while a Chathead is being dragged. However, dragging my ImageView doesn't trigger any flashing.

下面是一个小的截屏： https://dl.dropboxusercontent.com/u /13595927/temp/TRIM_20140225_134543.mp4

Here's a small screencast: https://dl.dropboxusercontent.com/u/13595927/temp/TRIM_20140225_134543.mp4

我尝试设置层类型 LAYER_TYPE_SOFTWARE ，但它并没有改变任何东西。还有什么我缺少什么？

I tried setting the layer type to LAYER_TYPE_SOFTWARE, but it didn't change anything. What else am I missing?

推荐答案

我chathead像Facebook信使：

https://github.com/henrychuangtw/FB-ChatHead

my chathead like facebook messenger :
https://github.com/henrychuangtw/FB-ChatHead

• 拖动和弹跳动画
  
  
  
  
  


• 使者：显示文本和sendtext
  
  
  结果
  
  
  
  
  
  
  • 龙pressing停止
    
    
  
  

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