cordova从设备存储加载图像文件

cordova plugin add cordova-plugin-file

<feature name="File">
  <param name="android-package" value="org.apache.cordova.file.FileUtils" />
</feature>
<feature name="FileTransfer">
  <param name="android-package" value="org.apache.cordova.filetransfer.FileTransfer" />
</feature>
<feature name="FileOpener2">
  <param name="android-package" value="com.droidgap.plugin.fileopener2.FileProvider" />
</feature>

document.addEventListener("deviceready", onDeviceReady, false);

function onDeviceReady() {
  window.resolveLocalFileSystemURL(cordova.file.externalRootDirectory, function(directoryEntry) {
    directoryEntry.getFile("path/to/image.jpg", { create: false, exclusive: false }, function(fileEntry) {
      var imageURI = fileEntry.toURL();
      var img = document.getElementById("myImage");
      img.src = imageURI;
    }, onError);
  }, onError);
}

function onError(error) {
  console.log("Error: " + error.code);
}