android各大手机系统打开权限管理页面

[java] view plain copy /**   * 跳转到miui的权限管理页面   */   private void gotoMiuiPermission() {       Intent i = new Intent("miui.intent.action.APP_PER...

       时间 : 2017-01-03| 栏目 : Android, 移动开发| 浏览 : 164 次| 暂无评论 Tags: [阅读全文]

    Retrofit 2.0 + OkHttp 3.0 配置

    来自: http://drakeet.me/retrofit-2-0-okhttp-3-0-config Retrofit 和 OkHttp 都是伟大的 Square 公司开源的伟大项目。我从 2014 年便在同事 ionull 的推荐带领下,使用这个网络库组合以及 RxJava,真是极大改善 Android 开发体验的好东...

         时间 : 2016-06-30| 栏目 : Android, 移动开发| 浏览 : 236 次| 暂无评论 Tags: [阅读全文]

      Jackson、JSON-lib、Gson性能对比

      Jackson:http://jackson.codehaus.org/ JSON-lib:http://json-lib.sourceforge.net/ Gson:http://code.google.com/p/google-gson/ 测试环境:   1、工作电脑:Intel双核E8400 ...

           时间 : 2016-03-10| 栏目 : Web开发| 浏览 : 270 次| 暂无评论 Tags: [阅读全文]

        java面向对象

        总结: Java是面向对象的编程语言,Java面向对象有三大特点:a.封装性;b.继承性;c.多态性。 一、封装性。 1.类可以将类的属性和方法封装到一起。(把属性和方法封装到一起的目的是为了更好的调用属性和方法。) 要想使用class里面的attribute和method,就必须创建class的instance。(怎么去创建ins...

             时间 : 2015-11-09| 栏目 : Android, 移动开发| 浏览 : 483 次| 暂无评论 Tags: [阅读全文]

          ScrollView套嵌ListView

          这是我最近遇到的问题,想实现全屏滚动大家都知道在最外层嵌套一个scrollview,但是如果里面有listview就操蛋了,listview只能显示大约两行的大小。我找了找资料,解决的办法一种是:不要在scrollview里嵌套listview(我操,你这不废话么,老子的设计就是这样的,能怎么办?这种回答纯属欠抽),第二种办法是重写lis...

               时间 : 2015-11-09| 栏目 : Android, 移动开发| 浏览 : 437 次| 暂无评论 Tags: [阅读全文]

            PC客户端与Android服务端的Socket同步通信(US...

            PC客户端与Android服务端的Socket同步通信(USB) 收藏 需求:   一个android端的service后台运行的程序,作为socket的服务器端;用于接收Pc client端发来的命令,来处理数据后,把结果发给PC client   2.PC端程序,作为socket的客...

                 时间 : 2015-11-09| 栏目 : Android, 移动开发| 浏览 : 239 次| 暂无评论 Tags: [阅读全文]

              handler详解

              handler详解 文章分类:移动开发 android里面对于异步消息的处理,提供了一套Handler的实现方案。Handler有很多适宜的应用和微妙之处,使它在和Thread以及Service等一起使用的时候达到很好的效果。 一. Handler与Thread的区别。Handler与调用者处于同一线程,如果Han...

                   时间 : 2015-11-09| 栏目 : Android, 移动开发| 浏览 : 222 次| 暂无评论 Tags: [阅读全文]

                Android 日志含义

                在调试代码的时候我们需要查看调试信息,那我们就需要用Android Log类。 android.util.Log常用的方法有以下5个:Log.v() Log.d() Log.i() Log.w() 以及 Log.e() 。根据首字母对应VERBOSE,DEBUG,INFO, WARN,ERROR。 1、Log.v 的调试颜色为...

                     时间 : 2015-11-09| 栏目 : Android, 移动开发| 浏览 : 268 次| 暂无评论 Tags: [阅读全文]

                  如何编写高效的 Android 代码

                  如何编写高效的 Android 代码 虽然如此说,但似乎并没有什么好的办法:Android设备是嵌入式设备。现代的手持设备,与其说是电话,更像一台拿在手中的电脑。但是,即使是“最快”的手持设备,其性能也赶不上一台普通的台式电脑。 这就是为什么我们在书写Android应用程序的时候要格外关注效率。这些设备并没有那么快,并且受电池...

                       时间 : 2015-11-09| 栏目 : Android, 移动开发| 浏览 : 232 次| 暂无评论 Tags: [阅读全文]

                    android 蓝牙设备开发

                    首先,要操作蓝牙,先要在AndroidManifest.xml里加入权限<uses-permissionandroid:name="android.permission.BLUETOOTH_ADMIN" /> <uses-permissionandroid:name="android.permission.BLUETO...

                         时间 : 2015-11-09| 栏目 : Android, 移动开发| 浏览 : 221 次| 暂无评论 Tags: [阅读全文]
                      

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