我对 react-native 和 android 应用程序构建真的很陌生，我正面临这个问题。我几乎一个星期都无法解决这个问题，所以我希望我能在这里得到一些解决方案..
一旦this.refs.cam.capture(options, cb)在 android 上，捕获方法在 android 上什么也不返回。在ios上一切正常。
类似的问题是这个#138
我无法从CameraManager.capture(options);react-native-camera/index.js 中得到任何响应。
这是我与 react-native-camera 相关的整个代码。
CameraView.js
componentWillMount() {
navigator.geolocation.getCurrentPosition(
(position) => {
this.setState({ location: { latitude: position.coords.latitude, longitude: position.coords.longitude} });
},
error => console.log(error),
{ enableHighAccuracy: true, timeout: 7000, maximumAge: 1000 }
)
}
startRecording() {
const options = { location: this.state.location };
// this is called
// console.log("level 1");
// capture function is defined
// console.log(this.camera.capture);
this.camera.capture({ metadata: options })
.then((data) => {
const asset = { isStatic: true };
if (Platform.OS === 'ios') {
if (this.props.camera.mode === Camera.constants.CaptureMode.still) {
asset.uri = `data:image/jpeg;base64,${data.data}`;
asset.path = data.path;
} else {
asset.uri = data.path.replace('file://', '');
asset.path = data.path.replace('file://', '');
}
} else if (Platform.OS === 'android') {
if (this.props.camera.mode === Camera.constants.CaptureMode.still) {
// Android has no path
asset.uri = `data:image/jpeg;base64,${data.data}`;
} else {
// TODO after capturing android
asset.uri = data.path.replace('file://', '');
asset.path = data.path.replace('file://', '');
}
}
this.props.mediaSelected(asset);
this.props.updateLatLng(this.state.location);
if (this.props.camera.mode === Camera.constants.CaptureMode.still) {
Image.getSize(
asset.uri,
(width, height) => {
this.props.updateAsset({ width, height });
}
);
}
RouteActions.EditView();
})
.catch((err) => {
// TODO error handling
console.log(err);
});
this.props.startRecording();
if (this.props.camera.mode === Camera.constants.CaptureMode.video && this.state.videoMode === 'short') {
this.timer = setInterval(this.countTimer, 1000);
}
}
render() {
const isCamera = this.props.camera.mode === Camera.constants.CaptureMode.still;
const recording = this.props.camera.isRecording;
return (
<View style={styles.cameraContainer}>
<Camera
ref={(cam) => { this.camera = cam; }}
style={styles.preview}
type={this.props.camera.type}
captureMode={this.props.camera.mode}
captureTarget={isCamera ? Camera.constants.CaptureTarget.memory : Camera.constants.CaptureTarget.disk}
captureQuality="1080p"
captureAudio={true}
playSoundOnCapture={true}
metadata={'location'}
/>
<View>
<TouchableOpacity onPress={this.startRecording}>
<Image source={require('./path.png')} resizeMode={'contain'} />
</TouchableOpacity>
</View>
</View>
);
./noed_modules/react-native-camera/index.js
capture(options) {
const props = convertNativeProps(this.props);
options = {
audio: props.captureAudio,
barCodeTypes: props.barCodeTypes,
mode: props.captureMode,
playSoundOnCapture: props.playSoundOnCapture,
target: props.captureTarget,
quality: props.captureQuality,
type: props.type,
title: '',
description: '',
mirrorImage: props.mirrorImage,
...options
};
// this is called
// console.log("check number 1");
if (options.mode === Camera.constants.CaptureMode.video) {
options.totalSeconds = (options.totalSeconds > -1 ? options.totalSeconds : -1);
options.preferredTimeScale = options.preferredTimeScale || 30;
this.setState({ isRecording: true });
}
// this is also called
// console.log("check number 6");
// THIS DOES NOT RETURN ANYTHING
return CameraManager.capture(options);
}
这就是我从 android studio 运行时 logcat 所说的
07-04 15:08:09.053: I/WindowManager(93): createSurface Window{416b4db8 comp.com/comp.com.receipt paused=false}: DRAW NOW PENDING
07-04 15:08:09.133: D/dalvikvm(146): GC_FOR_ALLOC freed 339K, 36% free 10622K/16455K, paused 164ms
07-04 15:08:09.842: W/WindowManager(93): Window freeze timeout expired.
07-04 15:08:09.842: W/WindowManager(93): Force clearing orientation change: Window{416b4db8 comp.com/comp.com.receipt paused=false}
07-04 15:08:09.922: W/NetworkManagementSocketTagger(93): setKernelCountSet(10006, 0) failed with errno -2
07-04 15:08:09.922: I/ActivityManager(93): No longer want com.android.deskclock (pid 358): hidden #16
07-04 15:08:11.153: D/dalvikvm(146): GC_FOR_ALLOC freed 371K, 36% free 10612K/16455K, paused 68ms
07-04 15:08:11.363: I/Process(772): Sending signal. PID: 772 SIG: 9
07-04 15:08:11.403: V/EmulatedCamera_CallbackNotifier(37): disableMessage: msg_type = 0xffff
07-04 15:08:11.403: V/EmulatedCamera_CallbackNotifier(37): CAMERA_MSG_ERROR
07-04 15:08:11.403: V/EmulatedCamera_CallbackNotifier(37): CAMERA_MSG_SHUTTER
07-04 15:08:11.403: V/EmulatedCamera_CallbackNotifier(37): CAMERA_MSG_FOCUS
07-04 15:08:11.403: V/EmulatedCamera_CallbackNotifier(37): CAMERA_MSG_ZOOM
07-04 15:08:11.403: V/EmulatedCamera_CallbackNotifier(37): CAMERA_MSG_PREVIEW_FRAME
07-04 15:08:11.403: V/EmulatedCamera_CallbackNotifier(37): CAMERA_MSG_VIDEO_FRAME
07-04 15:08:11.403: V/EmulatedCamera_CallbackNotifier(37): CAMERA_MSG_POSTVIEW_FRAME
07-04 15:08:11.403: V/EmulatedCamera_CallbackNotifier(37): CAMERA_MSG_RAW_IMAGE
07-04 15:08:11.403: V/EmulatedCamera_CallbackNotifier(37): CAMERA_MSG_COMPRESSED_IMAGE
07-04 15:08:11.403: V/EmulatedCamera_CallbackNotifier(37): CAMERA_MSG_RAW_IMAGE_NOTIFY
07-04 15:08:11.403: V/EmulatedCamera_CallbackNotifier(37): CAMERA_MSG_PREVIEW_METADATA
07-04 15:08:11.403: V/EmulatedCamera_CallbackNotifier(37): **** Currently enabled messages:
07-04 15:08:11.403: V/EmulatedCamera_Camera(37): doStopPreview
07-04 15:08:11.403: V/EmulatedCamera_Camera(37): cancelPicture
07-04 15:08:11.403: V/EmulatedCamera_Camera(37): releaseCamera
07-04 15:08:11.403: V/EmulatedCamera_Camera(37): doStopPreview
07-04 15:08:11.403: V/EmulatedCamera_FakeDevice(37): disconnectDevice
07-04 15:08:11.403: I/CameraService(37): Destroying camera 1
07-04 15:08:11.403: V/EmulatedCamera_Camera(37): closeCamera
07-04 15:08:11.403: V/EmulatedCamera_Camera(37): doStopPreview
环境
- 节点版本：7.2.0
- 反应原生版本：0.43.3
- 安卓 6.0、安卓 7.0
- 模拟器 Nexus6、Nexus5 和实际设备 Sony SO-01
- react-native-camera 版本：0.7.0
谢谢阅读！！