快速接入-Compose

178 次浏览 2026年 6月 3日下午4:37

## 简介
新应用开发，当前推荐使用Jetpack Compose 来接入。开发入门：https://developer.android.com/compose
Jetpack Compose 是 Android 推荐的用于构建原生用户界面的现代化开发工具包。它简化并加快了在 Android 上的用户界面开发过程。通过更少的代码、强大的工具和直观的 Kotlin API，您可以迅速让您的应用程序焕发生机。

NodeMediaClient-Android 4.0+ 支持通过Jetpack Compose 进行开发接入。

## 接入步骤
### 1.向settings.gradle.kts 添加jitpack.io的maven
```
dependencyResolutionManagement {
    repositoriesMode.set(RepositoriesMode.FAIL_ON_PROJECT_REPOS)
    repositories {
        google()
        mavenCentral()
        maven { url = uri("https://jitpack.io") }
    }
}

```

### 2.在build.gradle.kts中添加依赖, 实际版本号以最新版本为准
```
dependencies {
	implementation 'com.github.NodeMedia:NodeMediaClient-Android:4.1.8'
}
```

### 3.在页面组件内添加摄像头或播放器的封装视图
```
@Composable
fun CameraPreviewView(
    nodePublisher: NodePublisher,
    selectedCamera: Camera = Camera.FRONT,
    modifier: Modifier = Modifier,
) {
    AndroidView(
        factory = { context ->
            FrameLayout(context).apply {
                nodePublisher.attachView(this)
                val cameraId = if (selectedCamera == Camera.FRONT) {
                    NodePublisher.NMC_CAMERA_FRONT
                } else {
                    NodePublisher.NMC_CAMERA_BACK
                }
                nodePublisher.openCamera(cameraId)
            }
        },
        onRelease = {
            nodePublisher.detachView()
            nodePublisher.closeCamera()
        },
        modifier = modifier
    )
}
```

### 4.在界面中添加视图
```
Box(  
    modifier = Modifier.fillMaxSize()  
) {  
    // 相机预览视图作为背景层  
    CameraPreviewView(  
        nodePublisher,  
        selectedCamera = selectedCamera,  
        modifier = Modifier.fillMaxSize()  
    )
```

### 5.在页面中创建NodePublisher对象，并通过生命周期来初始化参数
```
fun LiveViewPage(
   // Stream settings
	serverAddress: String = "",
	streamKey: String = "",
	// Video source settings
	selectedCamera: Camera = Camera.FRONT,
	isFrontCameraMirrored: Boolean = true,
	selectedResolution: Resolution = Resolution.P720,
	selectedOrientation: Orientation = Orientation.PORTRAIT,
	// Video encoding settings
	selectedEncodingFormat: EncodingFormat = EncodingFormat.H264,
	selectedH264Profile: H264Profile = H264Profile.MAIN,
	selectedH265Standard: H265Standard = H265Standard.ENHANCED_RTMP,
	videoBitrate: Float = 2000f,
	selectedKeyframeInterval: KeyframeInterval = KeyframeInterval.AUTO,
	isHardwareEncoding: Boolean = false,
	// Audio settings
	selectedAudioFormat: AudioFormat = AudioFormat.AAC,
	selectedAACProfile: AACProfile = AACProfile.LC,
	audioBitrate: Float = 128f,
	selectedAudioChannels: AudioChannels = AudioChannels.STEREO,
	isNoiseReductionEnabled: Boolean = false
) {
    val context = LocalContext.current
    val scrollBehavior = TopAppBarDefaults.exitUntilCollapsedScrollBehavior()

// NodePublisher 实例
    val nodePublisher = remember { NodePublisher(context, "") }
DisposableEffect(Unit) {

val (baseWidth, baseHeight) = when (selectedResolution) {
        Resolution.P360 -> 640 to 368
        Resolution.P480 -> 864 to 480
        Resolution.P720 -> 1280 to 720
        Resolution.P1080 -> 1920 to 1080
    }
    val (width, height) = if (selectedOrientation == Orientation.PORTRAIT) {
        baseHeight to baseWidth
    } else {
        baseWidth to baseHeight
    }

nodePublisher.setVideoCodecParam(
        getVideoCodecId(selectedEncodingFormat),
        getVideoProfile(selectedEncodingFormat, selectedH264Profile),
        width, height, 30, (videoBitrate * 1024).toInt()
    )
    nodePublisher.setVideoOrientation(getVideoOrientation(selectedOrientation))
    nodePublisher.setKeyFrameInterval(selectedKeyframeInterval.ordinal)
    nodePublisher.setCameraFrontMirror(isFrontCameraMirrored)

// Apply audio settings
    val sampleRate = 48000
    val channels = if (selectedAudioChannels == AudioChannels.STEREO) 2 else 1
    val audioBitrateBps = (audioBitrate * 1024).toInt()

nodePublisher.setAudioCodecParam(
        getAudioCodecId(selectedAudioFormat),
        getAudioProfile(selectedAudioFormat, selectedAACProfile),
        sampleRate,
        channels,
        audioBitrateBps
    )
    nodePublisher.setFlvIdExt(selectedH265Standard == H265Standard.EXTENSION_FLV)
    nodePublisher.setHWAccelEnable(isHardwareEncoding)
    nodePublisher.setDenoiseEnable(isNoiseReductionEnabled)
    nodePublisher.setLogLevel(NodePublisher.LOG_LEVEL_DEBUG)
    nodePublisher.setOnNodePublisherEventListener { pub, event, msg ->
        streamingState = when (event) {
            2000 -> StreamingState.CONNECTING     // 开始连接
            2001 -> StreamingState.CONNECTED      // 连接成功
            2002 -> StreamingState.FAILED         // 连接失败
            2003 -> StreamingState.RECONNECTING   // 重新连接
            2004 -> StreamingState.DISCONNECTED   // 断开连接
            2005 -> StreamingState.NETWORK_ERROR  // 网络异常
            2006 -> StreamingState.TIMEOUT        // 网络超时
            else -> streamingState
        }
        Log.d("QLive.LiveStage", "LiveStagePage: $event $msg, state: $streamingState")
    }

onDispose {
        nodePublisher.stop()
    }
}
```

## Demo 源码
[KotlinDemo.zip](https://www.nodemedia.cn/doc/server/index.php?s=/api/attachment/visitFile&sign=37f7213e195fe6a3b392ecd34165abf1 "[KotlinDemo.zip")

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快速接入-Compose