Ionic4 - Native camera plugin issues

Ionic Framework ionic-v3
1

Hi All, I am facing an issue with Ionic Native Camera plugin. The following is my code.

public async selectPicture(source) {
    let base64Image = null;
    const cameraOptions: CameraOptions = {
      quality: 75,
      destinationType: this.camera.DestinationType.DATA_URL,
      encodingType: this.camera.EncodingType.PNG,
      mediaType: this.camera.MediaType.PICTURE,
      sourceType: source === 'camera' ? this.camera.PictureSourceType.CAMERA : this.camera.PictureSourceType.PHOTOLIBRARY,
      correctOrientation: true
    };

    await this.camera.getPicture(cameraOptions).then((imageData) => {
      console.log('Returned Image=>' + base64Image);
      return base64Image = 'data:image/jpeg;base64,' + imageData;
    }).catch(() => {
    });
  }

.ts

private openCamera = () => {
    this.studentImage = this.genericServices.selectPicture('camera');
    console.log('Captured Image:=>' + this.studentImage);
  }
private openGallery() {
    this.studentImage = this.genericServices.selectPicture('gallery');
  }

html

<img [src]="studentImage!==null ? studentImage: 'assets/icon/ic_avatar.png'" class="add-picture" (click)="addImage()">
  1. The first issue that I am facing is ‘Not able to select image from Gallery’
  2. Image is captured from camera but not returning.

Please help me with this.