From e17c6938d42dae9579178738133ea38352b8babe Mon Sep 17 00:00:00 2001
From: CodingGorit <5571237+CodingGorit@user.noreply.gitee.com>
Date: Fri, 25 Oct 2024 06:11:21 +0000
Subject: [PATCH] feat: add SoundPool demo based on api12

Signed-off-by: CodingGorit <5571237+CodingGorit@user.noreply.gitee.com>
---
 SoundPool/SoundPoolPage.ets | 125 ++++++++++++++++++++++++++++++++++++
 1 file changed, 125 insertions(+)
 create mode 100644 SoundPool/SoundPoolPage.ets

diff --git a/SoundPool/SoundPoolPage.ets b/SoundPool/SoundPoolPage.ets
new file mode 100644
index 0000000..6e95aa3
--- /dev/null
+++ b/SoundPool/SoundPoolPage.ets
@@ -0,0 +1,125 @@
+import { media } from '@kit.MediaKit';
+import { audio } from '@kit.AudioKit';
+import { BusinessError } from '@kit.BasicServicesKit';
+import { common } from '@kit.AbilityKit';
+
+let soundPool: media.SoundPool;
+let streamId: number = 0;
+let soundId: number = 0;
+let audioRendererInfo: audio.AudioRendererInfo = {
+  usage : audio.StreamUsage.STREAM_USAGE_MUSIC,
+  rendererFlags : 0
+}
+
+let playParameters: media.PlayParameters = {
+  loop: 0, // 循环4次
+  rate: audio.AudioRendererRate.RENDER_RATE_NORMAL, // 正常倍速
+  leftVolume: 0.5, // range = 0.0-1.0
+  rightVolume: 0.5, // range = 0.0-1.0
+  priority: 0, // 最低优先级
+}
+let uri: string = "";
+
+async function create() {
+  //创建soundPool实例
+  soundPool = await media.createSoundPool(5, audioRendererInfo);
+  //注册监听
+  loadCallback();
+  finishPlayCallback();
+  setErrorCallback();
+  // 加载音频资源
+  // await fs.open('/test_01.mp3', fs.OpenMode.READ_ONLY).then((file: fs.File) => {
+  //   console.info("file fd: " + file.fd);
+  //   uri = 'fd://' + (file.fd).toString()
+  // }); // '/test_01.mp3' 作为样例，使用时需要传入文件对应路径。
+  let context = getContext() as common.UIAbilityContext;
+  let fileDescriptor = await context.resourceManager.getRawFd('scan_success.mp3');
+  soundId = await soundPool.load(fileDescriptor.fd, fileDescriptor.offset, fileDescriptor.length);
+}
+function loadCallback() {
+  // 加载完成回调
+  soundPool.on('loadComplete', (soundId_: number) => {
+    console.info('loadComplete, soundId: ' + soundId_);
+  })
+}
+//设置播放完成监听
+function finishPlayCallback() {
+  // 播放完成回调
+  soundPool.on('playFinished', () => {
+    console.info("receive play finished message");
+    // 可进行下次播放
+  })
+}
+//设置错误类型监听
+function setErrorCallback() {
+  soundPool.on('error', (error: BusinessError) => {
+    console.info('error happened,message is :' + error.message);
+  })
+}
+async function PlaySoundPool() {
+  // 开始播放，这边play也可带播放播放的参数PlayParameters，请在音频资源加载完毕，即收到loadComplete回调之后再执行play操作
+  soundPool.play(soundId, playParameters, (error, streamID: number) => {
+    if (error) {
+      console.info(`play sound Error: errCode is ${error.code}, errMessage is ${error.message}`)
+    } else {
+      streamId = streamID;
+      console.info('play success soundid:' + streamId);
+    }
+  });
+  // 设置循环播放次数
+  await soundPool.setLoop(streamId, 0); // 播放3次
+  // 设置对应流的优先级
+  await soundPool.setPriority(streamId, 1);
+  // 设置音量
+  await soundPool.setVolume(streamId, 0.5, 0.5);
+}
+async function release() {
+  // 终止指定流的播放
+  await soundPool.stop(streamId);
+  // 卸载音频资源
+  await soundPool.unload(soundId);
+  //关闭监听
+  setOffCallback();
+  // 释放SoundPool
+  await soundPool.release();
+}
+//关闭监听
+function setOffCallback() {
+  soundPool.off('loadComplete');
+  soundPool.off('playFinished');
+  soundPool.off('error');
+}
+@Entry
+@Component
+struct SoundPoolPage {
+  @State message: string = 'Hello World';
+
+  aboutToAppear(): void {
+    create();
+  }
+
+  build() {
+    RelativeContainer() {
+      Text(this.message)
+        .id('SoundPoolPageHelloWorld')
+        .fontSize(50)
+        .fontWeight(FontWeight.Bold)
+        .alignRules({
+          center: { anchor: '__container__', align: VerticalAlign.Center },
+          middle: { anchor: '__container__', align: HorizontalAlign.Center }
+        })
+
+      Button("play audio")
+        .id("id_play_btn")
+        .onClick(() => {
+          PlaySoundPool()
+        })
+        .alignRules({
+          top: { anchor: 'SoundPoolPageHelloWorld', align: VerticalAlign.Bottom },
+          middle: { anchor: '__container__', align: HorizontalAlign.Center }
+        })
+    }
+    .height('100%')
+    .width('100%')
+  }
+}
\ No newline at end of file
-- 
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