Question

我正在我的应用程序中实现上传图像到服务器功能。用户可以通过相机和相册两种方式上传图像。

我审阅了这些链接，并使用了该代码。 http://docs.phonegap.com/en/2.9.0/cordova_media_capture_capture.md.html#Capture http://docs.phonegap.com/en/2.9.0/cordova_file_file.md.html#FileTransfer

主要问题是，在第一种情况下，当我打开相机时，应用程序暂停，甚至不捕获图像。

在第二种情况下，当我打开照片库时，应用程序暂停，但在这种情况下，我成功将视频上传到服务器。完成此操作后，应用程序将恢复，并加载索引页面。我使用的是cordova3.6.4版本。

function captureImage() {
        navigator.device.capture.captureImage(captureSuccess, captureError, {limit: 1});
}
function captureSuccess(mediaFiles) {
        alert("###1");
        var i, len;
        for (i = 0, len = mediaFiles.length; i < len; i += 1) {
            uploadFile(mediaFiles[i]);
        }
}
function uploadFile(mediaFile) {
        alert("###2");
        var ft = new FileTransfer(),
            path = mediaFile.fullPath,
            name = mediaFile.name;
                alert("image path "+path);


       ft.upload(path,
            "http://my.domain.com/upload.php",
            function(result) {
                console.log('Upload success: ' + result.responseCode);
                console.log(result.bytesSent + ' bytes sent');
            },
            function(error) {
                alert("error ###3");
                console.log('Error uploading file ' + path + ': ' + error.code);
            },
            { fileName: name });
}

图片来自PhotoGallery

function photoAlbum() {
            // Retrieve image file location from specified source
            navigator.camera.getPicture(
                uploadPhoto,
                function(message) { alert('get picture failed'); },
                {
                    quality         : 50,
                    destinationType : navigator.camera.DestinationType.FILE_URI,
                    sourceType      : navigator.camera.PictureSourceType.PHOTOLIBRARY
                }
            );
}

        function uploadPhoto(imageURI) {
            var options = new FileUploadOptions();
            options.fileKey="file";
            options.fileName=imageURI.substr(imageURI.lastIndexOf('/')+1);
            options.mimeType="image/jpeg";

            var params = {};
            params.value1 = "test";
            params.value2 = "param";

            options.params = params;

            var ft = new FileTransfer();
            ft.upload(imageURI, encodeURI("http://some.server.com/upload.php"), win, fail, options);
        }

我在logcat中收到警告

05-25 17:11:40.534: W/PluginManager(27869): THREAD WARNING: exec() call to Capture.captureImage blocked the main thread for 51ms. Plugin should use CordovaInterface.getThreadPool().
05-25 17:11:40.564: D/CordovaActivity(27869): Paused the application!
05-25 17:11:40.564: D/CordovaWebView(27869): Handle the pause
05-25 17:11:40.564: D/Socket_Pool(27869): Failed to create TCP Fin Aggregation interface.
05-25 17:11:40.564: D/Socket_Pool(27869): netstack: CloseUnusedSockets is ON
05-25 17:11:40.564: D/Socket_Pool(27869): netstack: system net.statistics value: 0
05-25 17:11:40.564: D/Socket_Pool(27869): Failed to create TCP Fin Aggregation interface.
05-25 17:11:40.564: D/Socket_Pool(27869): netstack: CloseUnusedSockets is ON
05-25 17:11:40.564: D/Socket_Pool(27869): netstack: system net.statistics value: 0

案例2 logcat警告

05-25 17:51:23.964: W/PluginManager(28392): THREAD WARNING: exec() call to Camera.takePicture blocked the main thread for 25ms. Plugin should use CordovaInterface.getThreadPool().
05-25 17:51:23.994: D/CordovaActivity(28392): Paused the application!
05-25 17:51:23.994: D/CordovaWebView(28392): Handle the pause
05-25 17:51:24.004: D/Socket_Pool(28392): Failed to create TCP Fin Aggregation interface.
05-25 17:51:24.004: D/Socket_Pool(28392): netstack: CloseUnusedSockets is ON
05-25 17:51:24.004: D/Socket_Pool(28392): netstack: system net.statistics value: 0
05-25 17:51:24.004: D/Socket_Pool(28392): Failed to create TCP Fin Aggregation interface.
05-25 17:51:24.004: D/Socket_Pool(28392): netstack: CloseUnusedSockets is ON
05-25 17:51:24.004: D/Socket_Pool(28392): netstack: system net.statistics value: 0

捕获图像时，phonegap app暂停

0 个答案: