解决设置模板在iOS平台无法多次从相册选择头像的bug

examples/hello-mui/examples/setting.html

@@ -606,6 +606,7 @@
 					mui.toast('Hello MUI 已是最新版本~')
 				} 
 			});
+
 		});
 		var view = viewApi.view;
 		(function($) {
@@ -677,22 +678,48 @@
 			}, function(s) {
 				console.log("error" + s);
 			}, {
-				filename: "_doc/head"
+				filename: "_doc/head.jpg"
 			})
 		}
 
 		function galleryImg() {
 			plus.gallery.pick(function(a) {
 				plus.io.resolveLocalFileSystemURL(a, function(entry) {
-					plus.io.resolveLocalFileSystemURL("_doc/", function(fs) {
-						entry.copyTo(fs, 'head.jpg', function(e) {
-							var e = e.toLocalURL() + "?version=" + new Date().getTime();
+					plus.io.resolveLocalFileSystemURL("_doc/", function (root) {
+						root.getFile("head.jpg",{},function (file) {
+							//文件已存在
+							file.remove(function () {
+								console.log("file remove success");
+								entry.copyTo(root, 'head.jpg', function(e) {
+									var e = e.fullPath + "?version=" + new Date().getTime();
 									document.getElementById("head-img").src = e;
 									document.getElementById("head-img1").src = e;
 									//变更大图预览的src
 									//目前仅有一张图片，暂时如此处理，后续需要通过标准组件实现
 									document.querySelector("#__mui-imageview__group .mui-slider-item img").src = e + "?version=" + new Date().getTime();;
-						}, function(e) {console.log(e.message);})
+								},
+								function(e) {
+									console.log('copy image fail:'+e.message);
+								});
+							},function () {
+								console.log("delete image fail:"+e.message);
+							});
+						},function () {
+							//文件不存在
+							entry.copyTo(root, 'head.jpg', function(e) {
+								var path = e.fullPath + "?version=" + new Date().getTime();
+								document.getElementById("head-img").src = path;
+								document.getElementById("head-img1").src = path;
+								//变更大图预览的src
+								//目前仅有一张图片，暂时如此处理，后续需要通过标准组件实现
+								document.querySelector("#__mui-imageview__group .mui-slider-item img").src = path;
+							},
+							function(e) {
+								console.log('copy image fail:'+e.message);
+							});
+						});
+					},function (e) {
+						console.log("get _www folder fail");
 					})
 				}, function(e) {
 					console.log("读取拍照文件错误：" + e.message);
@@ -704,7 +731,7 @@
 
 		function defaultImg() {
 			plus.io.resolveLocalFileSystemURL("_doc/head.jpg", function(entry) {
-				var s = entry.toLocalURL();
+				var s = entry.fullPath+ "?version=" + new Date().getTime();;
 				document.getElementById("head-img").src = s;
 				document.getElementById("head-img1").src = s;
 			}, function(e) {