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原文地址：https://developer.android.com/training/gestures/scale.html 这节课主要学习如何使用触摸手势来拖动、放大屏幕上的对象。拖动对象如果你的重点在Android 3.0以上的版本，那么你可以使用内置的拖拽事件监听器View.OnDrag...

Android官方开发文档Training系列课程中文版：手势处理之多点触控处理

原文地址：http://android.xsoftlab.net/training/gestures/multi.html 多点触控是指多个手指同时触摸屏幕的情况。这节课主要学习如何检测多点触控手势。记录多个触控点当多根手指同时触碰到屏幕时，系统会产生以下触摸事件： ACTION_DOWN -第...

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Android官方开发文档Training系列课程中文版：手势处理之滚动动画及Scroller

原文地址：http://android.xsoftlab.net/training/gestures/scroll.html 在Android中，滑动经常由ScrollView类来实现。任何超出容器边界的布局都应该将自己内嵌在ScrollView中，以便提供可滚动的视图效果。自定义滚动只有在特定的场...

Android官方开发文档Training系列课程中文版：手势处理之记录手指移动的轨迹

原文地址：http://android.xsoftlab.net/training/gestures/movement.html 这节课将会学习如何在触摸事件中记录手指移动的轨迹。当手指触摸的位置、压力或者尺寸发生变化时，ACTION_MOVE事件就会被触发。与Detecting Common G...

Android官方开发文档Training系列课程中文版：手势处理之监测通用手势

原文地址：http://android.xsoftlab.net/training/gestures/index.html 引言这节课将会学习如何让用户通过触摸手势与APP产生交互。Android提供了许多相关API来帮助你创建、检测手势。尽管APP不应该将触摸手势作为基本的输入特性，但是触摸手...

Android官方开发文档Training系列课程中文版：管理系统UI之隐藏状态条

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Android官方开发文档Training系列课程中文版：管理系统UI之变暗系统条

原文地址：http://android.xsoftlab.net/training/system-ui/index.html 引言系统条(System Bars)是屏幕上的一块显示区域，专门用来显示通知，设备的通讯状态以及设备的导向。典型的System Bars与APP同时显示在屏幕上。APP展示...

Android官方开发文档Training系列课程中文版：创建自定义View之View的优化

原文地址：http://android.xsoftlab.net/training/custom-views/optimizing-view.html 现在已经完成了一个拥有良好设计的View，它即可以响应手势，又可以在状态之间过渡。为了避免View有卡顿的感觉，需要确保动画始终是按照每秒60帧的频...

Android官方开发文档Training系列课程中文版：创建自定义View之View的交互

写在前面的话:这一章很有价值，想要提升安卓知识的一定要读一读。不做安卓的也可以得到其它方面的提升。原文地址：http://android.xsoftlab.net/training/custom-views/making-interactive.html UI的绘制只是自定义View的一部分。你还...

Android官方开发文档Training系列课程中文版：创建自定义View之View的绘制

原文地址：http://android.xsoftlab.net/training/custom-views/custom-drawing.html#draw 自定义View最重要的部分就是它的样子了。自定义View的绘制根据应用的需要或者简单亦或者复杂。这节课的内容涵盖了大多数通用的知识点。重写...

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