{"id":93,"date":"2014-02-04T17:39:32","date_gmt":"2014-02-04T17:39:32","guid":{"rendered":"http:\/\/visualgdb.com\/w\/?p=93"},"modified":"2015-07-19T08:20:40","modified_gmt":"2015-07-19T15:20:40","slug":"android-native-audio","status":"publish","type":"post","link":"https:\/\/visualgdb.com\/tutorials\/android\/native-audio\/","title":{"rendered":"Debugging the native-audio project with Visual Studio"},"content":{"rendered":"

This tutorial shows how to build and debug the Native-activity<\/strong> sample provided with Android NDK.<\/p>\n

Before you begin, please install VisualGDB 2.0<\/a> or later (ensure that “Android Edition” is checked in the installer). If you are not familiar with VisualGDB, please first go through the Android Quickstart tutorial<\/a>.<\/p>\n

    \n
  1. Start Visual Studio. Select File->New project->VisualGDB->Android Project Wizard.\"01-newprj\"<\/a><\/li>\n
  2. Specify the path for the new project and an arbitrary project name (e.g. NativeAudioTest<\/strong>) and press OK.<\/li>\n
  3. In VisualGDB wizard select Clone a Sample from NDK<\/strong>.\"02-clone\"<\/a><\/li>\n
  4. On the next page select native-audio<\/strong> from the sample list.\"03-native-audio\"<\/a><\/li>\n
  5. On the last wizard page select a platform that supports Native Audio API (e.g. Android 2.3.3).\"04-platform\"<\/a><\/li>\n
  6. Press Finish<\/strong> to create the project. Build it by selecting Build->Build Solution<\/strong>.\"05-assert\"<\/a><\/li>\n
  7. If you see build errors related to bqRecorderBufferQueue<\/strong> variable, double-click at the error message in Error list so that Visual Studio will navigate to the problem. Then comment out the line causing it. Build the solution again.\"06-builddone\"<\/a><\/li>\n
  8. If you want to use a physical device, prepare it for debugging<\/a> and connect it. If you want to use Android Emulator, select Android->AVD Manager<\/strong> in Visual Studio. When the AVD Manager opens, create a virtual device based on Android 2.3.3 or later and start it. Wait till the device starts up completely.\"07-avd\"<\/a><\/li>\n
  9. To test debugging functionality, we’ll set\u00a0 a
    \nbreakpoint inside the function selecting a buffer to play
    \nwith native audio API (Java_com_example_nativeaudio_NativeAudio_selectClip()<\/strong> ). Please put the breakpoint after the line with the CLIP_HELLO comment. Then select Android->Debug Android App<\/strong>.    \"08-bkpt\"<\/a><\/li>\n
  10. If you are using the emulator, installing the APK file and loading it might take some time. Wait until the “Debug Initializing” window disappears.\"09-start\"<\/a><\/li>\n
  11. Go to Android emulator and press the “Hello” button in the app.\"10-hello\"<\/a><\/li>\n
  12. The breakpoint will trigger. Normally, this should result in playing the “hello” sample. However, we’ll test the debugger by forcing it to play the sawtooth sample instead. Right-click at the line with the CLIP_SAWTOOTH<\/strong> comment and select Set Next Statement<\/strong>.\"11-setnext\"<\/a><\/li>\n
  13. Notice that your the line selecting sawtoothBuffer<\/strong> became active.\"12-jump\"<\/a><\/li>\n
  14. Press F5 to continue running the program. The emulator will play the sawtooth sample.<\/li>\n
  15. To finish debugging, press Shift+F5.<\/li>\n<\/ol>\n

     <\/p>\n","protected":false},"excerpt":{"rendered":"

    This tutorial shows how to build and debug the Native-activity sample provided with Android NDK. Before you begin, please install<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[87],"tags":[31,45],"_links":{"self":[{"href":"https:\/\/visualgdb.com\/w\/wp-json\/wp\/v2\/posts\/93"}],"collection":[{"href":"https:\/\/visualgdb.com\/w\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/visualgdb.com\/w\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/visualgdb.com\/w\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/visualgdb.com\/w\/wp-json\/wp\/v2\/comments?post=93"}],"version-history":[{"count":1,"href":"https:\/\/visualgdb.com\/w\/wp-json\/wp\/v2\/posts\/93\/revisions"}],"predecessor-version":[{"id":174,"href":"https:\/\/visualgdb.com\/w\/wp-json\/wp\/v2\/posts\/93\/revisions\/174"}],"wp:attachment":[{"href":"https:\/\/visualgdb.com\/w\/wp-json\/wp\/v2\/media?parent=93"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/visualgdb.com\/w\/wp-json\/wp\/v2\/categories?post=93"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/visualgdb.com\/w\/wp-json\/wp\/v2\/tags?post=93"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}