Question

在我的cordova（v3.3）单页应用程序中，使用以下代码获取摄像机图像

function takeSkiImage(){
   capturePhoto();
}  

function capturePhoto() {
// Take picture using device camera and retrieve image as base64-encoded string
    alert((navigator.camera.getPicture));
    navigator.camera.cleanup(); 
    navigator.camera.getPicture(onPhotoDataSuccess, function fail(error){
       alert("failed : " + error.code);
    }, {
      quality : 90,
      targetWidth : 2300,
      targetHeight : 1800,
      destinationType : Camera.DestinationType.FILE_URI
  });
}


function onPhotoDataSuccess(imageURI) {
    var gotFileEntry = function(fileEntry) {
    alert("got image file entry: " + fileEntry.fullPath);
    var gotFileSystem = function(fileSystem) {

        fileSystem.root.getDirectory("sample", {
            create : true
        }, function(dataDir) {
            var d = new Date();
            var n = d.getTime();
            var newFileName = n + ".jpg";
            alert("File Downloaded");
            // copy the file
            fileEntry.moveTo(dataDir, newFileName, null, fsFail);

        }, dirFail);

    };
    // get file system to copy or move image file to
    window.requestFileSystem(LocalFileSystem.PERSISTENT, 0,
            gotFileSystem, fsFail);
};
// resolve file system for image
window.resolveLocalFileSystemURI(imageURI, gotFileEntry, fsFail);

// file system fail
var fsFail = function(error) {
    alert("failed with error code: " + error.code);

};

var dirFail = function(error) {
    alert("Directory error code: " + error.code);

};
}

以上代码在 NEXUS 7（v 4.2）设备中正常工作并提醒相机启动，但在三星标签4（v 4.4）设备中，警报摄像头启动从未第一次启动< / strong>但goes to camera and able to take picture but not able to save.

当再次拍摄新图像时，只存储旧图像。喜欢明智地拍摄新图像只存储以前的图像。怎么解决这个问题。任何帮助都非常值得赞赏。

Answer 1

要保存图像，您需要正确配置选项。

function takeSkiImage(){
   alert("hi");
   navigator.camera.getPicture(function(imageData) {
      alert("camera start");
   }, onFail, {
    quality : 100, allowEdit : true,
    targetWidth: 2350,
    targetHeight: 1800,
    destinationType : Camera.DestinationType.FILE_URI,
    saveToPhotoAlbum : true
   });
}

保存图片需要saveToPhotoAlbum : true。

<强>更新

要将文件保存在自定义位置，您必须使用File plugin。

navigator.camera.getPicture无法正常工作

1 个答案: