s

wallpaper/lib/pages/imgscanpage/imgscanpage_controller.dart

@@ -3,12 +3,13 @@ import 'package:get/get_rx/get_rx.dart';
 import 'package:wallpaper/models/imgnetodel.dart';
 import 'package:wallpaper/utils/downloadmanager.dart';
 import 'dart:async';
-
+import 'dart:io';
 class ImgScanPageController extends GetxController {
   late NetImgCategory dataModel;
   RxInt currentIndex = RxInt(0);
   RxInt showAppbar = RxInt(0);//控制appbar显示....
   Timer? _timer;
+  var isAndroid = Platform.isAndroid;
   var albumPermisonisDenied = false.obs;
   @override
   void onInit(){
@@ -59,4 +60,9 @@ class ImgScanPageController extends GetxController {
         showAppbar.value = 0;
       });
   }
+
+  Future <void> setWallpaper() async {
+      String imgUrl = dataModel.data![currentIndex.value].original!;
+      await DownloadManager.setWallpaper(imgUrl);
+  }
 }

wallpaper/lib/pages/imgscanpage/imgscanpage_view.dart

@@ -73,7 +73,23 @@ class ImgScanPageView extends GetView<ImgScanPageController> {
                         mainAxisSize: MainAxisSize.max,
         //                交叉轴的布局方式，对于column来说就是水平方向的布局方式
                         crossAxisAlignment: CrossAxisAlignment.center,
-                        children: [
+                        children: getButtomWidge(),
+                      ),
+                  ),
+          ),
+        ],
+      ),
+    );
+  }
+
+  void onPageChanged(int index){
+    print("切换了图片....");
+    controller.currentIndex.value = index;
+  }
+
+
+  List<Widget> getButtomWidge(){
+    List<Widget> wg = [
                           const Spacer(
                           ),
                           IconButton(onPressed:() {
@@ -90,17 +106,15 @@ class ImgScanPageView extends GetView<ImgScanPageController> {
                           }, icon: const Icon(Icons.wallpaper),color: Colors.white,),
                           const Spacer(
                           ),
-                        ],
-                      ),
-                  ),
-          ),
-        ],
-      ),
-    );
-  }
+                        ];
+      if (controller.isAndroid) {
+          wg.add(IconButton(onPressed:() {
+                          controller.setWallpaper();
 
-  void onPageChanged(int index){
-    print("切换了图片....");
-    controller.currentIndex.value = index;
+                        }, icon: const Icon(Icons.wallpaper),color: Colors.white,));
+          wg.add(const Spacer(
+                          ));
+      }
+      return wg;
   }
 }