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使用eclipse开发智慧城市APP源码，API 19(Using eclipse to develop smart city APP source code API 19)

应用背景对有着操作复杂或者有固定操作顺序的app首次打开的一个使用指导，有需要的可以借鉴一下关键技术采用FramLayout实现蒙层效果，以及在蒙层效果上实现的文字向导，和文字点击事件

Android sdk开发范例大全（第二版）第6章节

android os线程通讯实例 附完整源码

【实例简介】超声波测距跟随小车

科大讯飞的语音开发包，可以在android下进行语音识别产品的开发！(IFLYTEK MSC development guide, instruct users under ANDROID speech recognition product development.)

Android组件库CWAC主要用来解决Android 开发中各个方面的常见问题，每个 CWAC 组件打包成一个独立的 jar 文件，JNI处理，本次下载的是CWAC组件库及应用示例(Component library CWAC Android Android is mainly used to solve common problems in all aspects of development, each CWAC components packaged into a separate jar files, JNI treatment, the download is CWAC component library and application examples)

卡片式View，支持单个卡片，item为卡片的ListView 使用： CardListView list = ... list.setCardTheme(CardTheme.Dark) CardAdapter adapter = new CardAdapter(this, android.R.color.holo_blue_dark) list.setAdapter(adapter) // Alternatively, you can pass a context and string resources in place of strings // CardHeader has an optional second parameter for a subtitle CardHeader header = new CardHeader( I m a header ) // You can optionally set an action to the header // Specifying no action title will default to See More header.setAction( See More , new CardHeader.ActionListener() { @Override public void onHeaderActionClick(CardHeader header) { // Do whatever you want } }) // Add the header to the adapter, automatically notifies the list adapter.add(header) // Again, you can pass a context and string resources in place of strings Card card = new Card( Hello , My name is Aidan ) adapter.add(card) (This library is no longer maintained, as this implementation is generally frowned upon in the new Google Material design guidelines, excluding certain situations (like Google Keep type UI). See the new CardView APIs in the Support Library.)

Android应用源码音乐实时跳动频谱显示(Android application source music, real-time beating spectrum display)

说明：  一个QPSK的仿真程序,使用的是COSTAS环来恢复载波,给予SIMULINK(A QPSK emulator that uses the COSTAS loop to recover the carrier and give it to the SIMULINK)