Question

在我的应用程序中，我必须在收到通知时播放声音。为了播放音频，我实现了以下代码：

private static final short BFlat = 466;   //466.16
private static final short AFlat = 415;     //415.30
private static final short A = 440; //440.00
private static final short GFlat = 370;     //369.99
private static final short DFlat = 554;     //554.37
private static final short C = 523; //523.25
private static final short F = 349; //349.32
// Duration of a 16th note, arbitrary, in ms.
private static final short TEMPO = 125;

// Duration of a 16th note, arbitrary, in ms.
private static final short d16 = 1 * TEMPO;

// Duration of an eighth note, arbitrary, in ms.
private static final short d8 = d16 << 1;
// 10 ms pause.
private static final short dpause = 10;

// Zero frequency pause.
private static final short pause = 0;

private static final short[] TUNE = new short[] {
             BFlat, d16, pause, dpause,
             BFlat, d16, pause, dpause,
             BFlat, d16, pause, dpause,
             BFlat, d16, pause, dpause,
             A, d16, pause, dpause,
             BFlat, d16, pause, dpause,
             GFlat, d16, pause, dpause,
             GFlat, d16, pause, dpause,
             A, d16, pause, dpause,
             BFlat, d16, pause, dpause,
             DFlat, d16, pause, dpause,
             C, d16, pause, dpause, //bar 1
             AFlat, d16, pause, dpause,
             AFlat, d16, pause, dpause,
             AFlat, d16, pause, dpause,
             AFlat, d16, pause, dpause,
             F, d16, pause, dpause,
             GFlat, d16, pause, dpause,
             AFlat, d16, pause, dpause,
             BFlat, d16, pause, dpause,
             AFlat, d16, pause, dpause,
             F, d8 + d16 //bar 2
         };

public MyScreen()
{        
    // Set the displayed title of the screen       
    setTitle("MyTitle");
    // % volume
    final int VOLUME = 80;


    if ( Alert.isAudioSupported())
    {
         System.out.println("------alert is audio supported-------------"+ Alert.isAudioSupported());

         Alert.startAudio(TUNE, 100);
        //Alert.startVibrate(5000);
    }

Alert.startAudio()根本没有播放声音。但我能振动手机。请让我知道我在哪里缺少一些东西或如何在startAudio中使用short的数组。请建议我一些或任何想法。感谢

的的 ** * ** * 修改的 * ** * ** * ** * ** 要显示我使用过的对话框和通知。我可以显示对话框并播放振动和铃声，但是铃声音量非常低，除非我把手机放在耳边，否则没有人能听到。

try{
                     Application.getApplication().invokeAndWait(new Runnable() {
                         public void run() 
                         {

                         }
                     });
                       final Dialog screen = new Dialog(Dialog.D_OK_CANCEL, " "+text,
                                Dialog.OK,
                                //mImageGreen.getBitmap(),
                                null, Manager.VERTICAL_SCROLL);
                        final UiEngine ui = Ui.getUiEngine();
                        Application.getApplication().invokeAndWait(new Runnable() {
                            public void run() {
                                NotificationsManager.triggerImmediateEvent(0x749cb23a76c66e2dL, 0, null, null);
                                ui.pushGlobalScreen(screen, 0, UiEngine.GLOBAL_QUEUE);
                            }
                        });
                        System.out.println("-----IN PUSH MESSAGE READER----"+screen.getSelectedValue());
                        if(screen.getSelectedValue()==1)
                        {
                            System.out.println("-----I1-"+screen.getSelectedValue());

                            ApplicationDescriptor[] appDescriptors =CodeModuleManager.getApplicationDescriptors(CodeModuleManager.getModuleHandle("BB_push"));
                          ApplicationDescriptor appDescriptor = new ApplicationDescriptor(appDescriptors[0], new String[] {"BB_push"});
                          try {
                            ApplicationManager.getApplicationManager().runApplication(appDescriptor);
                          }catch (ApplicationManagerException e) 
                          {
                            // TODO Auto-generated catch block
                            System.out.println("in notification exception----"+e);
                            e.printStackTrace();
                        }
                        }

                      //  screen.setDialogClosedListener(new MyDialogClosedListener());
                        }
                        catch (Exception e) {
                        }

我想点击确定按钮打开应用程序，但它无效。

Answer 1

您是否考虑过使用Notification API？通过这种方式，用户可以设置应用程序的通知声音，并在主屏幕更改通知配置文件时进行相应更改 - 认为“正常”“仅振动”和“所有警报关闭”

查看NotificationsManager以及方法triggerImmediateEvent和registerSource

在Blackberry中收到通知时播放音频

1 个答案: