问题描述
我在本机上实现了相机。当我单击“捕捉”以捕获图像时,它显示错误:无法拍照-预览已暂停,请在拍照前将其恢复。我的代码如下:
<RNCamera
ref={ref => {
this.camera = ref;
}}
captureAudio={false}
style={{flex: 1}}
type={RNCamera.Constants.Type.back}
androidCameraPermissionoptions={{
title: 'Permission to use camera',message: 'We need your permission to use your camera',buttonPositive: 'Ok',buttonNegative: 'Cancel',}}>
<Text onPress={this.takePicture}>Snap</Text>
</RNCamera>
constructor(props) {
super(props);
this.state = {
takingPic: false,};
}
takePicture = async () => {
if (this.camera && !this.state.takingPic) {
let options = {
quality: 0.85,base64: true,};
this.setState({takingPic: true});
try {
const data = await this.camera.takePictureAsync(options);
Alert.alert('Success',JSON.stringify(data));
} catch (err) {
Alert.alert('Error','Failed to take picture: ' + (err.message || err));
return;
} finally {
this.setState({takingPic: false});
}
}
解决方法
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