@hmscore/react-native-hms-mlimage/example/src/HmsImageRelatedServices/Frame.js

React Native HMS ML Image Kit

/*
 * Copyright 2023-2024. Huawei Technologies Co., Ltd. All rights reserved.
 *
 * Licensed under the Apache License, Version 2.0 (the "License")
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      https://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

import React from 'react';
import {
  Text,
  View,
  ScrollView,
  TouchableOpacity,
  Image,
  ToastAndroid
} from 'react-native';
import { HMSFrame, HMSApplication } from '@hmscore/react-native-hms-mlimage';
import { styles } from '../Styles';
import { showImagePicker } from '../HmsOtherServices/Helper';

export default class Frame extends React.Component {

  componentDidMount() { }

  componentWillUnmount() { }

  constructor(props) {
    super(props);
    this.state = {
      imageUri: '',
      imageResult: '',
      isAnalyzeEnabled: false,
    };
  }

  getFrameConfiguration = () => {
    return { filePath: this.state.imageUri };
  }

  async getPreviewBitmap() {
    try {
      var result = await HMSFrame.getPreviewBitmap(this.getFrameConfiguration());
      this.parseResult(result);
    } catch (e) {
      console.log(e);
    }
  }

  async readBitmap() {
    try {
      var result = await HMSFrame.readBitmap(this.getFrameConfiguration());
      this.parseResult(result);
    } catch (e) {
      console.log(e);
    }
  }

  async rotate() {
    try {
      var result = await HMSFrame.rotate(HMSFrame.SCREEN_THIRD_QUADRANT, this.state.imageUri);
      this.parseResult(result);
    } catch (e) {
      console.log(e);
    }
  }

  parseResult = (result) => {
    console.log(result);
    if (result.status == HMSApplication.SUCCESS) {
      this.setState({ imageResult: result.result });
    }
    else {
      ToastAndroid.showWithGravity(result.message, ToastAndroid.SHORT, ToastAndroid.CENTER);
    }
  }

  render() {
    return (
      <ScrollView style={styles.bg}>

        <View style={styles.containerCenter}>
          <TouchableOpacity
            onPress={() => { showImagePicker().then((result) => this.setState({ imageUri: result })) }}
            disabled={this.state.isAnalyzeEnabled}
            style={styles.startButton}>
            <Text style={styles.startButtonLabel}>Select Image</Text>
          </TouchableOpacity>
          {this.state.imageUri !== '' &&
            <Image
              style={styles.imageSelectView}
              source={{ uri: this.state.imageUri }}
            />
          }
        </View>

        <Text style={styles.h1}>Result Image</Text>

        <View style={styles.containerCenter}>
          <TouchableOpacity
            onPress={null}
            disabled={this.state.isAnalyzeEnabled}>
          </TouchableOpacity>
          {this.state.imageResult !== '' &&
            <Image
              style={styles.imageSelectView}
              source={{ uri: this.state.imageResult }}
            />
          }
        </View>

        <View style={styles.basicButton}>
          <TouchableOpacity
            style={styles.startButton}
            onPress={this.getPreviewBitmap.bind(this)}
            disabled={this.state.imageUri == '' ? !this.state.isAnalyzeEnabled : this.state.isAnalyzeEnabled}>
            <Text style={styles.startButtonLabel}> Preview Bitmap </Text>
          </TouchableOpacity>
        </View>

        <View style={styles.basicButton}>
          <TouchableOpacity
            style={styles.startButton}
            onPress={this.readBitmap.bind(this)}
            disabled={this.state.imageUri == '' ? !this.state.isAnalyzeEnabled : this.state.isAnalyzeEnabled}>
            <Text style={styles.startButtonLabel}> Read Bitmap </Text>
          </TouchableOpacity>
        </View>

        <View style={styles.basicButton}>
          <TouchableOpacity
            style={styles.startButton}
            onPress={this.rotate.bind(this)}
            disabled={this.state.imageUri == '' ? !this.state.isAnalyzeEnabled : this.state.isAnalyzeEnabled}>
            <Text style={styles.startButtonLabel}> Rotate </Text>
          </TouchableOpacity>
        </View>

      </ScrollView >
    );
  }
}