Android应用_第164页-阿里云

判断Android设备是否已经安装某应用

MainActivity如下: package cn.testinstall; import android.os.Bundle; import android.widget.TextView; import android.app.Activity; import android.content....

Android应用风格不应照抄iOS

苹果iOS平台上之所以有这么优秀的应用，主要得益于苹果官方有一套非常成熟的UI套件和人机交互手册来指导第三方开发者。这样即便你对产品设计、UI交互什么都不懂，按照苹果的官方手册来，也能做出一个看起来不错的App。但Android上就不一样了，Android 4.x之前，Google 对应用开发市场...

开源Android容器化框架Atlas开发者指南

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android平台应用GPIO模拟IR控制车载DTV

android平台应用GPIO模拟IR控制车载DTV 数字电视—DTV对我们来说早已不是一个新东西，在车载电子上DTV大多是以模块的形式独立存在的，是可配的。在车载的市场上，客户的需求是多种多样的，如...

Android底层字符传递给上层应用举例

Android底层字符传递给上层应用 1、Android的硬件抽象层读取相应的串口设备的数据： static int uart_read_drv(struct uart_control_device_t *dev, char *buf, int count) ...

Android Activity中启动另一应用程序的方法，无需得到类名

Android Activity中启动另一应用程序的方法，无需得到类名在网上搜索了一会相关的实现代码，发现所有的文章都说是需要包名和类名。但是人家的程序，我们怎么可能知道哪个是第一个启动的Activity？所以，真正用在项目上，那种方法基本上没什么用的。于是...

Android平台根据分辨率计算屏幕尺寸，基于物理尺寸来验证手机和平板应用合并的可行性

Android平台根据分辨率计算屏幕尺寸，基于物理尺寸来验证手机和平板应用合并的可行性出发点：Android系统本身是支持多种分辨率的，如图1所示，一般情况下要适配不同尺寸的设备只需要做两件事，1. 根据4种不同的屏幕尺寸提供4套UI布局（layout)。 2. 根据4种...

Android应用--QR的生成（二维码）

Android应用--QR的生成（二维码）什么是ZING，你真的理解吗？二维码的定义：二维码（2-dimensional bar code），是用某种特定的几何图形按一定规律在平面（二维方向上）分布的黑白相间的图形...

值得一看:Android给应用定制皮肤

在实现程序功能的同时，如果能让程序界面更加美观，有锦上添花之妙. 先说思路: 1）皮肤也就是相关的资源文件单独放置在某个工程中,一种皮肤一个工程文件.一个工程包括N多的资源文件,多个工程间资源的关系是,文件名,资源ID等完全一样.不同的可能是图片资源,style等的设置不一样. 皮肤工程在Andro...

USB Camera在android车机上应用前景及初试小结

USB Camera在android车机上应用前景及初试小结 USB Camera在我们的生活中已经有一些年头了，USB接口的普通摄像头由于使用方便，价格低廉，性能较好，应用在了工作生活的...

我是Android应用开发者，刚入手卓普小黑c2

您好，我是Android应用开发者，这是我的站点:dreamtobe.cn 刚刚入手卓普小黑c2，想在阿里云系统上进行调试，可是阿里云不支持usb调试，我在其他机上测试应用都正常。就是阿里云系统中。出现问题。因此希望能够提供一个可以进行调试的方法。

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