捕獲phonegap ios后保存圖像

Question

我正在使用phonegap開發IOS應用程序...我使用了默認的相機api，因此用戶可以為其用戶個人資料照片拍照。

該功能運行正常，但是我的問題是用戶捕獲的圖像不會保存在系統文件中，因此我可以在其他頁面中檢索它

這是我的代碼

var pictureSource;   // picture source
    var destinationType; // sets the format of returned value 

    // Wait for Cordova to connect with the device
    //
    document.addEventListener("deviceready",onDeviceReady,false);

    // Cordova is ready to be used!
    //
    function onDeviceReady() {
        pictureSource=navigator.camera.PictureSourceType;
        destinationType=navigator.camera.DestinationType;
    }

    // Called when a photo is successfully retrieved
    //
    function onPhotoDataSuccess(imageData) {
      // Uncomment to view the base64 encoded image data
      // console.log(imageData);

      // Get image handle
      //
      var smallImage = document.getElementById('smallImage');

      // Unhide image elements
      //
      smallImage.style.display = 'block';

      // Show the captured photo
      // The inline CSS rules are used to resize the image
      //
      smallImage.src = "data:image/jpeg;base64," + imageData;

    }

    // Called when a photo is successfully retrieved
    //
    function onPhotoURISuccess(imageURI) {
      // Uncomment to view the image file URI 
      // console.log(imageURI);

      // Get image handle
      //
      document.getElementById('smallImage').src='img/me2.jpg';
      var smallImage = 'img/me2.jpg';

      // Unhide image elements
      //
      smallImage.style.display = 'block';

      // Show the captured photo
      // The inline CSS rules are used to resize the image
      //
      smallImage.src = imageURI;
    }

    // A button will call this function
    //
    function capturePhoto() {
      // Take picture using device camera and retrieve image as base64-encoded string
      navigator.camera.getPicture(onPhotoDataSuccess, onFail, { quality: 50,
        destinationType: destinationType.DATA_URL });
    }

    // A button will call this function
    //
    function capturePhotoEdit() {
      // Take picture using device camera, allow edit, and retrieve image as base64-encoded string  
      navigator.camera.getPicture(onPhotoDataSuccess, onFail, { quality: 50, allowEdit: true,
        destinationType: destinationType.DATA_URL });
    }

    // A button will call this function
    //
    function getPhoto(source) {
      // Retrieve image file location from specified source
      navigator.camera.getPicture(onPhotoURISuccess, onFail, { quality: 50, 
        destinationType: destinationType.FILE_URI,
        sourceType: source });
    }

    // Called if something bad happens.
    // 
    function onFail(message) {
      alert('Failed because: ' + message);
    }

用戶使用相機拍攝照片后，如何覆蓋文件（“ img / me2.jpg”）？

Answer 1

您無法覆蓋img / me2.jpg，因為該文件位於應用程序捆綁包中。

您必須將捕獲的圖像保存在應用程序數據文件夾中（例如，使用PhoneGap的File API），然后將URL保存在localStorage中，您可以隨時從該位置檢索它。