初始化

ios/Runner/Assets.xcassets/AppIcon.appiconset/Contents.json

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+{
+    "images": [
+        {
+            "size": "20x20",
+            "idiom": "iphone",
+            "filename": "icon-20@2x.png",
+            "scale": "2x"
+        },
+        {
+            "size": "20x20",
+            "idiom": "iphone",
+            "filename": "icon-20@3x.png",
+            "scale": "3x"
+        },
+        {
+            "size": "29x29",
+            "idiom": "iphone",
+            "filename": "icon-29.png",
+            "scale": "1x"
+        },
+        {
+            "size": "29x29",
+            "idiom": "iphone",
+            "filename": "icon-29@2x.png",
+            "scale": "2x"
+        },
+        {
+            "size": "29x29",
+            "idiom": "iphone",
+            "filename": "icon-29@3x.png",
+            "scale": "3x"
+        },
+        {
+            "size": "40x40",
+            "idiom": "iphone",
+            "filename": "icon-40@2x.png",
+            "scale": "2x"
+        },
+        {
+            "size": "40x40",
+            "idiom": "iphone",
+            "filename": "icon-40@3x.png",
+            "scale": "3x"
+        },
+        {
+            "size": "57x57",
+            "idiom": "iphone",
+            "filename": "icon-57.png",
+            "scale": "1x"
+        },
+        {
+            "size": "57x57",
+            "idiom": "iphone",
+            "filename": "icon-57@2x.png",
+            "scale": "2x"
+        },
+        {
+            "size": "60x60",
+            "idiom": "iphone",
+            "filename": "icon-60@2x.png",
+            "scale": "2x"
+        },
+        {
+            "size": "60x60",
+            "idiom": "iphone",
+            "filename": "icon-60@3x.png",
+            "scale": "3x"
+        },
+        {
+            "size": "20x20",
+            "idiom": "ipad",
+            "filename": "icon-20-ipad.png",
+            "scale": "1x"
+        },
+        {
+            "size": "20x20",
+            "idiom": "ipad",
+            "filename": "icon-20@2x-ipad.png",
+            "scale": "2x"
+        },
+        {
+            "size": "29x29",
+            "idiom": "ipad",
+            "filename": "icon-29-ipad.png",
+            "scale": "1x"
+        },
+        {
+            "size": "29x29",
+            "idiom": "ipad",
+            "filename": "icon-29@2x-ipad.png",
+            "scale": "2x"
+        },
+        {
+            "size": "40x40",
+            "idiom": "ipad",
+            "filename": "icon-40.png",
+            "scale": "1x"
+        },
+        {
+            "size": "40x40",
+            "idiom": "ipad",
+            "filename": "icon-40@2x.png",
+            "scale": "2x"
+        },
+        {
+            "size": "50x50",
+            "idiom": "ipad",
+            "filename": "icon-50.png",
+            "scale": "1x"
+        },
+        {
+            "size": "50x50",
+            "idiom": "ipad",
+            "filename": "icon-50@2x.png",
+            "scale": "2x"
+        },
+        {
+            "size": "72x72",
+            "idiom": "ipad",
+            "filename": "icon-72.png",
+            "scale": "1x"
+        },
+        {
+            "size": "72x72",
+            "idiom": "ipad",
+            "filename": "icon-72@2x.png",
+            "scale": "2x"
+        },
+        {
+            "size": "76x76",
+            "idiom": "ipad",
+            "filename": "icon-76.png",
+            "scale": "1x"
+        },
+        {
+            "size": "76x76",
+            "idiom": "ipad",
+            "filename": "icon-76@2x.png",
+            "scale": "2x"
+        },
+        {
+            "size": "83.5x83.5",
+            "idiom": "ipad",
+            "filename": "icon-83.5@2x.png",
+            "scale": "2x"
+        },
+        {
+            "size": "1024x1024",
+            "idiom": "ios-marketing",
+            "filename": "icon-1024.png",
+            "scale": "1x"
+        }
+    ],
+    "info": {
+        "version": 1,
+        "author": "icon.wuruihong.com"
+    }
+}

ios/Runner/Assets.xcassets/Contents.json

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+{
+  "info" : {
+    "author" : "xcode",
+    "version" : 1
+  }
+}

ios/Runner/Assets.xcassets/LaunchImage.imageset/Contents.json

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+{
+  "images" : [
+    {
+      "filename" : "ic_splash_bg 1.png",
+      "idiom" : "universal",
+      "scale" : "1x"
+    },
+    {
+      "filename" : "ic_splash_bg.png",
+      "idiom" : "universal",
+      "scale" : "2x"
+    },
+    {
+      "filename" : "ic_splash_bg 2.png",
+      "idiom" : "universal",
+      "scale" : "3x"
+    }
+  ],
+  "info" : {
+    "author" : "xcode",
+    "version" : 1
+  }
+}

ios/Runner/Assets.xcassets/LaunchImage.imageset/README.md

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+# Launch Screen Assets
+
+You can customize the launch screen with your own desired assets by replacing the image files in this directory.
+
+You can also do it by opening your Flutter project's Xcode project with `open ios/Runner.xcworkspace`, selecting `Runner/Assets.xcassets` in the Project Navigator and dropping in the desired images.