{"id":820,"date":"2025-08-05T12:56:48","date_gmt":"2025-08-05T12:56:48","guid":{"rendered":"https:\/\/boochlin.com\/?p=820"},"modified":"2026-09-19T17:04:02","modified_gmt":"2026-09-19T17:04:02","slug":"immutable-stable-%e5%a6%82%e6%9e%9c-immutablelist-%e5%85%a7%e5%8c%85%e5%90%ab-list-%ef%bc%8e%e9%80%99%e6%a8%a3%e6%9c%83%e9%80%a0%e6%88%90-recompstion-%e5%97%8e%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/boochlin.com\/?p=820","title":{"rendered":"@Immutable @Stable \u5982\u679c immutableList \u5167\u5305\u542b list \uff0e\u9019\u6a23\u6703\u9020\u6210 recompstion \u55ce\uff1f"},"content":{"rendered":"

\u5148\u8aaa\u7b54\u6848\uff1a\u6703\uff0c\u800c\u4e14\u9019\u7d55\u5c0d\u662f\u5beb Jetpack Compose \u6700\u5bb9\u6613\u88ab\u9670\u7684\u5751\u3002<\/strong><\/p>\n

\u5f88\u591a\u4eba\u4ee5\u70ba\u5916\u5c64\u5305\u4e86\u4e00\u5c64 ImmutableList<\/code>\uff0c\u6216\u662f\u985e\u5225\u982d\u4e0a\u84cb\u4e86 @Immutable<\/code> \u7684\u5370\u7ae0\uff0c\u5c31\u62ff\u5230\u4e86\u514d\u6b7b\u91d1\u724c\uff0c\u4ee5\u70ba\u5e95\u4e0b\u6240\u6709\u5143\u4ef6\u90fd\u4e0d\u6703\u89f8\u767c\u7121\u6548\u91cd\u7d44\u4e86\u3002<\/p>\n

\u4f46 Compose \u7684\u7a69\u5b9a\u6027\u5224\u65b7\u662f\u905e\u8ff4\u6aa2\u67e5\u7684\uff1a\u53ea\u8981\u4f60\u6700\u6df1\u5c64\u7684\u5143\u7d20\u5305\u542b\u4e86\u4e00\u822c\u7684 List<\/code>\uff0c\u9019\u500b\u4e0d\u7a69\u5b9a\u7684\u7834\u53e3\u5c31\u6703\u76f4\u63a5\u628a\u5916\u5c64\u7684\u4e0d\u53ef\u8b8a\u9632\u8b77\u7f69\u7d66\u523a\u7a7f\uff0c\u8b93 Compose \u7684\u667a\u6167\u8df3\u904e\u91cd\u7d44\uff08Smart Recomposition\uff09\u76f4\u63a5\u7834\u529f\uff01<\/strong><\/p>\n

\u5230\u5e95\u72af\u4e86\u4ec0\u9ebc\u5fcc\u8af1\uff1f\u6211\u5011\u76f4\u63a5\u770b\u5e95\u5c64\u600e\u9ebc\u8dd1\u3002<\/p>\n

\n

Compose \u5230\u5e95\u5728\u9632\u5565\uff1f\u70ba\u4ec0\u9ebc\u9019\u9ebc\u6015\u6a19\u6e96\u7684 List<\/code>\uff1f<\/h2>\n

\u5728 Kotlin \u88e1\uff0cList<T><\/code> \u8868\u9762\u4e0a\u96d6\u7136\u662f\u552f\u8b80\u4ecb\u9762\uff08\u53ea\u6709 get()<\/code>\uff0c\u6c92\u6709 add()<\/code>\uff09\uff0c\u4f46\u5b83\u5728\u5e95\u5c64\u672c\u8cea\u4e0a\u901a\u5e38\u5c31\u662f\u500b java.util.ArrayList<\/code>\uff1a<\/p>\n

val<\/span> standardList: List<String> = mutableListOf("A"<\/span>, "B"<\/span>) \/\/ \u5411\u4e0a\u8f49\u578b\u70ba\u552f\u8b80 List<\/span><\/code><\/pre>\n
\u9019\u5728 Compose \u773c\u88e1\u6709\u5169\u500b\u81f4\u547d\u554f\u984c\uff1a<\/p>\n
    \n
  1. \u4ecb\u9762\u6839\u672c\u9632\u4e0d\u4f4f\u53ef\u8b8a<\/strong>\uff1a\u5916\u90e8\u53ea\u8981\u96a8\u4fbf\u8f49\u578b (standardList as MutableList).add("C")<\/code>\uff0c\u88e1\u9762\u7684\u5167\u5bb9\u5c31\u88ab\u6539\u4e86\uff0c\u800c\u4e14\u8a18\u61b6\u9ad4\u4f4d\u5740\uff08Reference\uff09\u5b8c\u5168\u6c92\u8b8a\uff01<\/li>\n
  2. \u7de8\u8b6f\u5668\u731c\u4e0d\u900f\u5b83\u6703\u4e0d\u6703\u8b8a<\/strong>\uff1aCompose Compiler \u5728\u7de8\u8b6f\u6642\u7121\u6cd5\u4fdd\u8b49\u9019\u4efd List<\/code> \u6c38\u9060\u4e0d\u6703\u8b8a\u3002\u70ba\u4e86\u907f\u514d\u300c\u8cc7\u6599\u8b8a\u4e86\u4f46\u756b\u9762\u6c92\u5237\u65b0\u300d\u7684\u4e8b\u6545\uff0c\u7de8\u8b6f\u5668\u53ea\u80fd\u4fdd\u5b88\u5730\u628a\u6240\u6709 List<\/code>\u3001Set<\/code>\u3001Map<\/code> \u901a\u901a\u6253\u4e0a Unstable\uff08\u4e0d\u7a69\u5b9a\uff09<\/strong> \u7684\u6a19\u7c64\u3002<\/li>\n<\/ol>\n
    \u4e00\u65e6 Composable \u51fd\u5f0f\u7684\u53c3\u6578\u88ab\u6a19\u70ba Unstable\uff0c\u53ea\u8981\u7236\u5c64\u4e00\u91cd\u7d44\uff0cCompose \u5c31\u7121\u6cd5\u4fe1\u4efb\u50b3\u9032\u4f86\u7684\u53c3\u6578\uff0c\u53ea\u80fd\u5f37\u5236\u91cd\u65b0\u57f7\u884c\u9019\u500b\u5b50\u5143\u4ef6\uff0c\u5b8c\u5168\u8df3\u4e0d\u904e\uff08Non-skippable\uff09<\/strong>\u3002<\/p>\n
    \n
    \u5982\u679c\u5c64\u5c64\u5305\u9032\u53bb\uff0c\u5230\u5e95\u6703\u767c\u751f\u5565\u4e8b\uff1f4 \u7a2e\u5be6\u6e2c<\/h2>\n
    \u5982\u679c\u6211\u5011\u628a\u4e0d\u53ef\u8b8a\u8207\u53ef\u8b8a\u96c6\u5408\u5c64\u5c64\u5d4c\u5957\uff0c\u5230\u5e95\u6703\u767c\u751f\u5565\u4e8b\uff1f\u76f4\u63a5\u770b\u9019 4 \u7a2e\u5be6\u6e2c\u7d44\u5408\uff1a<\/p>\n
    \/\/ \u7d44\u5408 1\uff1a\u5916\u5c64\u4e0d\u53ef\u8b8a\uff0c\u5167\u5c64\u53ef\u8b8a<\/span>\nState<ImmutableList<MutableList<T>>>\n\n\/\/ \u7d44\u5408 2\uff1a\u5916\u5c64\u4e0d\u53ef\u8b8a\uff0c\u5167\u5c64\u4e00\u822c List<\/span>\nState<ImmutableList<List<T>>>\n\n\/\/ \u7d44\u5408 3\uff1a\u5167\u5916\u7686\u6df1\u5ea6\u4e0d\u53ef\u8b8a<\/span>\nState<ImmutableList<ImmutableList<T>>>\n\n\/\/ \u7d44\u5408 4\uff1a\u624b\u52d5\u6a19\u8a3b @Immutable \u5305\u88dd\u985e<\/span>\n@Immutable<\/span>\ndata<\/span> class<\/span> StableListWrapper<\/span><T<\/span>>(val<\/span> items: List<T>)<\/code><\/pre>\n
    1. ImmutableList<MutableList<T>><\/code> \u2014\u2014 \u756b\u9762\u88dd\u6b7b\uff0c\u6539\u4e86\u4e5f\u4e0d\u91cd\u7d44<\/h3>\n
      \n
    • \u73fe\u8c61<\/strong>\uff1a\u4f60\u5c0d\u5167\u5c64\u7684 MutableList<\/code> \u547c\u53eb .add()<\/code>\uff0c\u756b\u9762\u5b8c\u5168\u4e0d\u6703\u91cd\u7d44\uff01<\/strong><\/li>\n
    • \u539f\u56e0<\/strong>\uff1a\u5916\u5c64 ImmutableList<\/code> \u7684\u8a18\u61b6\u9ad4\u4f4d\u5740\u6839\u672c\u6c92\u8b8a\uff0cCompose \u5224\u5b9a\u300c\u5916\u5c64\u5f88\u7a69\u5b9a\uff0c\u800c\u4e14\u7269\u4ef6\u6c92\u63db\u300d\uff0c\u76f4\u63a5\u8df3\u904e\u91cd\u7d44\uff1b\u800c\u5167\u5c64\u7684\u4e00\u822c MutableList<\/code> \u53c8\u6c92\u6709 Compose \u7684 State \u89c0\u5bdf\u6a5f\u5236\u3002<\/li>\n
    • \u4e0b\u5834<\/strong>\uff1a\u8cc7\u6599\u660e\u660e\u8b8a\u4e86\uff0cUI \u537b\u88dd\u6b7b\u4e0d\u52d5\uff0c\u76f4\u5230\u5176\u4ed6\u7121\u95dc\u72c0\u614b\u89f8\u767c\u91cd\u7d44\u624d\u7a81\u7136\u8df3\u51fa\u4f86\uff0c\u7522\u751f\u6975\u5176\u96e3\u67e5\u7684\u5e7d\u9748 Bug\u3002<\/li>\n<\/ul>\n
      2. ImmutableList<List<T>><\/code> \u2014\u2014 \u7834\u6d1e\u5916\u6f0f\uff0c\u6bcf\u6b21\u5fc5\u88ab\u5f37\u8feb\u91cd\u7d44<\/h3>\n
        \n
      • \u73fe\u8c61<\/strong>\uff1a\u7236\u5c64\u4efb\u4f55\u7121\u95dc\u7684 State \u6539\u8b8a\uff0c\u63a5\u6536\u9019\u500b\u53c3\u6578\u7684\u5b50\u5143\u4ef6\u6bcf\u4e00\u6b21\u90fd\u6703\u8ddf\u8457\u88ab\u5f37\u5236\u91cd\u7d44\uff01<\/strong><\/li>\n
      • \u539f\u56e0<\/strong>\uff1a\u96d6\u7136\u5916\u5c64\u9802\u8457 ImmutableList<\/code> \u7684\u5149\u74b0\uff0c\u4f46 Compose Compiler \u5f80\u6cdb\u578b\u88e1\u9762\u4e00\u6316\uff0c\u770b\u5230\u4e86 List<T><\/code>\uff08Unstable\uff09\u3002\u7de8\u8b6f\u5668\u76f4\u63a5\u5ba3\u544a\uff1a\u300c\u6211\u4e0d\u4fe1\u4efb\u4f60\u7684\u5167\u90e8\u5143\u7d20\uff01\u300d<\/li>\n
      • \u5be6\u6230\u4ee3\u78bc\u770b Logcat \u5237\u5c4f<\/strong>\uff1a<\/li>\n<\/ul>\n
        @Composable<\/span>\nfun<\/span> ParentScreen<\/span>()<\/span><\/span> {\n    var<\/span> counter by<\/span> remember { mutableStateOf(0<\/span>) }\n\n    \/\/ \u5916\u5c64\u662f ImmutableList\uff0c\u4f46\u5167\u5c64\u662f\u666e\u901a List<String><\/span>\n    val<\/span> nestedList: ImmutableList<List<String>> = remember {\n        persistentListOf(\n            listOf("Alice"<\/span>, "Android"<\/span>),\n            listOf("Bob"<\/span>, "Backend"<\/span>)\n        )\n    }\n\n    Column {\n        Button(onClick = { counter++ }) { Text("\u7121\u95dc\u8a08\u6578\u5668: $counter<\/span>"<\/span>) }\n        \/\/ \ud83d\udca5 \u6bcf\u6b21\u9ede\u64ca\u6309\u9215\uff0cNestedUserList \u90fd\u6703\u88ab\u8feb\u91cd\u7d44\uff01<\/span>\n        NestedUserList(data<\/span> = nestedList)\n    }\n}\n\n@Composable<\/span>\nfun<\/span> NestedUserList<\/span>(data<\/span>: ImmutableList<\/span><List<\/span><String<\/span>>>)<\/span><\/span> {\n    Log.d("Recomposition"<\/span>, "NestedUserList \u6b63\u5728\u91cd\u7d44..."<\/span>) \/\/ Logcat \u6bcf\u6b21\u9ede\u64ca\u90fd\u760b\u72c2\u5237\u5c4f<\/span>\n    LazyColumn {\n        items(data<\/span>) { group ->\n            Text("\u7d44\u5225: ${group.joinToString()}<\/span>"<\/span>)\n        }\n    }\n}<\/code><\/pre>\n
        3. ImmutableList<ImmutableList<T>><\/code> \u2014\u2014 \u6df1\u5ea6\u4e0d\u53ef\u8b8a\uff0c\u5805\u4e0d\u53ef\u6467<\/h3>\n
          \n
        • \u73fe\u8c61<\/strong>\uff1a\u7236\u5c64\u4e0d\u7ba1\u600e\u9ebc\u91cd\u7d44\uff0c\u53ea\u8981 nestedList<\/code> \u6c92\u6709\u63db\u65b0\u5be6\u4f8b\uff0c\u5b50\u5143\u4ef6 100% \u5b8c\u7f8e\u8df3\u904e\uff08Skippable\uff09<\/strong>\uff01<\/li>\n
        • \u539f\u56e0<\/strong>\uff1a\u5f9e\u5916\u5c64\u5230\u5167\u5c64\u5168\u90e8\u90fd\u662f\u7531 kotlinx.collections.immutable<\/code> \u63d0\u4f9b\u7684\u4e0d\u53ef\u8b8a\u96c6\u5408\uff0c\u7de8\u8b6f\u671f\u63a8\u65b7\u5b8c\u5168\u70ba Stable\uff0c\u9054\u6210\u7d14\u7cb9\u7684\u5143\u4ef6\u5feb\u53d6\u3002<\/li>\n<\/ul>\n
          4. @Immutable data class Wrapper(val items: List<T>)<\/code> \u2014\u2014 \u958b\u767c\u8005\u7684\u53e3\u982d\u652f\u7968<\/h3>\n
            \n
          • \u73fe\u8c61<\/strong>\uff1a\u5143\u4ef6\u78ba\u5be6\u80fd\u5920\u8df3\u904e\u91cd\u7d44\uff0c\u4f46\u9019\u662f\u4e00\u5f35\u6709\u98a8\u96aa\u7684\u5207\u7d50\u66f8<\/strong>\u3002<\/li>\n
          • \u539f\u56e0<\/strong>\uff1a@Immutable<\/code> \u662f\u4f60\u5728\u5411\u7de8\u8b6f\u5668\u767c\u8a93\uff1a\u300c\u6211\u4fdd\u8b49\u9019\u88e1\u9762\u7684\u6771\u897f\u7d55\u4e0d\u4fee\u6539\u300d<\/em>\u3002\u7de8\u8b6f\u5668\u76f8\u4fe1\u4e86\u4f60\uff0c\u5f37\u5236\u628a\u5b83\u7576 Stable \u770b\u5f85\u3002<\/li>\n
          • \u4ee3\u50f9<\/strong>\uff1a\u5982\u679c\u6709\u4eba\u5728\u5916\u9762\u5077\u5077\u6539\u4e86\u50b3\u9032\u4f86\u7684 List \u5167\u5bb9\uff0cCompose \u662f\u4e0d\u6703\u77e5\u9053\u7684\uff0c\u756b\u9762\u4e00\u6a23\u6703\u88dd\u6b7b\u4e0d\u66f4\u65b0\u3002<\/li>\n<\/ul>\n
            \n
            \u90a3\u96e3\u9053\u8981\u4e00\u76f4\u624b\u52d5\u5305\u6a19\u7c64\uff1fStrong Skipping Mode \u51fa\u73fe\u4e86<\/h2>\n
            \u5728\u4ee5\u524d\uff08Compose 1.5 \u4e4b\u524d\uff09\uff0c\u9019\u4ef6\u4e8b\u771f\u7684\u662f\u6bcf\u500b Android \u958b\u767c\u8005\u7684\u75db\uff0c\u5e38\u5e38\u8981\u5728\u5c08\u6848\u5230\u8655\u8cbc @Immutable<\/code>\uff0c\u6216\u8005\u903c\u6bcf\u500b\u4eba\u90fd\u628a List<\/code> \u6539\u5beb\u6210 ImmutableList<\/code>\u3002<\/p>\n
            \u4f46\u5f9e Compose Compiler 1.5.4+<\/strong> \u5f15\u5165\u3001\u4e26\u5728 Kotlin 2.0 \/ Compose 1.7+ \u9810\u8a2d\u555f\u7528<\/strong> \u7684 Strong Skipping Mode\uff08\u5f37\u8df3\u904e\u6a21\u5f0f\uff09<\/strong>\uff0c\u904a\u6232\u898f\u5247\u8b8a\u4e86\uff01<\/p>\n
            Strong Skipping \u5e36\u4f86\u4e86\u5565\u6539\u8b8a\uff1f<\/h3>\n
              \n
            1. Unstable \u53c3\u6578\u4e5f\u53ef\u4ee5\u8df3\u904e\u91cd\u7d44\u4e86<\/strong>\uff1a
              \n\u5728\u904e\u53bb\uff0c\u53ea\u8981\u53c3\u6578\u6709 List<\/code> \u9019\u7a2e Unstable \u578b\u5225\uff0c\u8a72 Composable \u5c31\u76f4\u63a5\u88ab\u5ba3\u5224\u7121\u6cd5\u8df3\u904e\u3002\u4f46\u5728 Strong Skipping \u4e0b\uff0c\u6240\u6709 Composable \u9810\u8a2d\u90fd\u53ef\u4ee5\u8df3\u904e\uff08Skippable\uff09<\/strong>\uff01<\/li>\n
            2. \u6bd4\u5c0d\u65b9\u5f0f\u8b8a\u5f97\u66f4\u8070\u660e<\/strong>\uff1a\n
                \n
              • \u9047\u5230 Unstable \u53c3\u6578\u6642\uff0cCompose \u6703\u5148\u505a\u53c3\u7167\u6bd4\u5c0d\uff08===<\/code>\uff09\uff0c\u82e5\u4e0d\u540c\u5247\u9000\u4e00\u6b65\u8abf\u7528 equals()<\/code> \u505a\u5be6\u8cea\u5167\u5bb9\u6bd4\u5c0d<\/strong>\u3002\u5982\u679c\u5167\u5bb9\u6839\u672c\u6c92\u8b8a\uff0c\u5c31\u7b97\u662f\u4e00\u822c\u7684 List<String><\/code>\uff0cCompose \u4e5f\u6703\u8070\u660e\u5730\u8df3\u904e\u91cd\u7d44\uff01<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n
                \u65e2\u7136\u6709\u4e86 Strong Skipping\uff0c\u70ba\u4ec0\u9ebc\u6211\u5011\u9084\u662f\u9700\u8981 ImmutableList<\/code>\uff1f<\/h3>\n
                \u5f88\u591a\u4eba\u4ee5\u70ba\u300c\u6709\u4e86 Strong Skipping\uff0c\u8001\u5b50\u5c31\u53ef\u4ee5\u96a8\u4fbf\u50b3 List<\/code> \u4e86\u300d\uff0c\u9019\u53c8\u662f\u53e6\u4e00\u500b\u5751\uff1a<\/p>\n
                  \n
                1. \u5927\u6e05\u55ae\u7684 equals()<\/code> \u662f $O(N)$ \u8ca0\u64d4<\/strong>\uff1a
                  \n\u5982\u679c\u4f60\u7684 List<\/code> \u6709 1,000 \u7b46\u8cc7\u6599\uff0c\u6bcf\u6b21\u7236\u5c64\u91cd\u7d44\uff0cStrong Skipping \u70ba\u4e86\u78ba\u8a8d\u5167\u5bb9\u6709\u6c92\u6709\u8b8a\uff0c\u5c31\u5f97\u8dd1 1,000 \u6b21\u6bd4\u5c0d\uff01\u91cd\u7d44\u662f\u8df3\u904e\u4e86\u6c92\u932f\uff0c\u4f46 CPU \u5168\u6d6a\u8cbb\u5728\u6bd4\u5c0d\u5b57\u4e32\u4e0a\u4e86\u3002<\/li>\n
                2. ImmutableList<\/code> \u7684\u6301\u4e45\u5316\u7d50\u69cb\u512a\u52e2<\/strong>\uff1a
                  \nkotlinx.collections.immutable<\/code>\uff08\u4f8b\u5982 PersistentList<\/code>\uff09\u5e95\u5c64\u63a1\u7528 Trie \u6a39\u7d50\u69cb\u5171\u4eab\u3002\u5982\u679c\u8cc7\u6599\u6c92\u8b8a\uff0c\u7269\u4ef6\u53c3\u7167\u4e00\u5b9a\u76f8\u540c\uff08===<\/code> \u77ac\u9593\u547d\u4e2d\uff0c\u5e38\u6578\u6642\u9593\u641e\u5b9a\uff09\uff0c\u6839\u672c\u4e0d\u7528\u5168\u8868\u904d\u6b77\u3002<\/li>\n<\/ol>\n
                  \n
                  \u7e3d\u7d50\uff1a\u5be6\u52d9\u4e0a\u8a72\u600e\u9ebc\u9632\u91cd\u7d44\uff1f<\/h2>\n\n\n\n\n\n\n\n\n
                  \u5834\u666f<\/th>\n\u63a8\u85a6\u505a\u6cd5<\/th>\n\u6838\u5fc3\u7406\u7531<\/th>\n<\/tr>\n<\/thead>\n
                  \u55ae\u7d14\u5e73\u92ea\u5217\u8868\u5c55\u793a<\/strong><\/td>\nkotlinx.collections.immutable.ImmutableList<T><\/code><\/td>\n\u8868\u660e\u4e0d\u53ef\u8b8a\u610f\u5716\uff0c\u7701\u4e0b\u5927\u6e05\u55ae\u7121\u8b02\u7684\u6df1\u5ea6 equals()<\/code> \u904d\u6b77<\/td>\n<\/tr>\n
                  \u5de2\u72c0\u5206\u7d44\u8cc7\u6599\u7d50\u69cb<\/strong><\/td>\nImmutableList<ImmutableList<T>><\/code> \u6216\u5305\u6210\u5b8c\u6574\u4e0d\u53ef\u8b8a Model<\/td>\n\u78ba\u4fdd\u4e0d\u53ef\u8b8a\u9632\u8b77\u300c\u7531\u5167\u800c\u5916\u300d\u5fb9\u5e95\u5c01\u9589\uff0c\u675c\u7d55\u7a7f\u900f<\/td>\n<\/tr>\n
                  \u9700\u8981\u52d5\u614b\u589e\u522a\u6539\u67e5<\/strong><\/td>\nmutableStateListOf<T>()<\/code><\/td>\n\u7531 Compose \u5b98\u65b9 State \u7ba1\u7406\uff0c\u589e\u522a\u5143\u7d20\u7cbe\u78ba\u901a\u77e5\u7279\u5b9a Item \u91cd\u7d44<\/td>\n<\/tr>\n
                  \u8de8\u6a21\u7d44\/\u8cc7\u6599\u5eab Model<\/strong><\/td>\n\u555f\u7528 Strong Skipping Mode\uff0c\u6216\u900f\u904e Mapper \u8f49\u6210 UI Model<\/td>\n\u907f\u514d\u5728\u8cc7\u6599\u5c64\u6216\u5546\u696d\u908f\u8f2f\u5c64\u5230\u8655\u4f9d\u8cf4 Compose \u5c08\u7528\u6a19\u7c64<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
                  \u4e7e\u6de8\u7684\u5be6\u6230\u7bc4\u4f8b\uff1a<\/h3>\n
                  \/\/ 1. \u6df1\u5ea6\u4e0d\u53ef\u8b8a\u7684 UI Model<\/span>\n@Immutable<\/span>\ndata<\/span> class<\/span> UserGroupUiState<\/span>(\n    val<\/span> groupTitle: String,\n    \/\/ \u5167\u5c64\u4e5f\u5fc5\u9808\u662f\u4e0d\u53ef\u8b8a\u96c6\u5408\uff0c\u5f62\u6210\u5b8c\u6574\u7684\u9589\u74b0\u9632\u8b77<\/span>\n    val<\/span> members: PersistentList<UserUiState> = persistentListOf()\n)\n\n@Immutable<\/span>\ndata<\/span> class<\/span> UserUiState<\/span>(\n    val<\/span> id: String,\n    val<\/span> name: String,\n    val<\/span> avatarUrl: String\n)\n\n\/\/ 2. \u5448\u73fe\u5c64 Composable\uff1a\u5728\u4efb\u4f55\u7248\u672c\u4e0b\u90fd 100% \u7a69\u5b9a\u8df3\u904e\u91cd\u7d44<\/span>\n@Composable<\/span>\nfun<\/span> GroupList<\/span>(groups: PersistentList<\/span><UserGroupUiState<\/span>>)<\/span><\/span> {\n    LazyColumn {\n        items(groups, key = { it.groupTitle }) { group ->\n            GroupHeader(title = group.groupTitle)\n            group.members.forEach { user ->\n                UserRow(user = user)\n            }\n        }\n    }\n}<\/code><\/pre>\n
                  \u8a18\u4f4f\u4e00\u53e5\u8a71\uff1a\u5916\u5c64\u5305\u5f97\u518d\u6f02\u4eae\uff0c\u53ea\u8981\u88e1\u9762\u7559\u4e86\u4e00\u500b\u53ef\u8b8a\u7684\u7f3a\u53e3\uff0cCompose \u7684\u91cd\u7d44\u9632\u8b77\u7f69\u5c31\u6703\u76f4\u63a5\u88ab\u523a\u7a7f\u3002<\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"
                  \u5148\u8aaa\u7b54\u6848\uff1a\u6703\uff0c\u800c\u4e14\u9019\u7d55\u5c0d\u662f\u5beb Jetpack Compose \u6700\u5bb9\u6613\u88ab\u9670\u7684\u5751\u3002 \u5f88\u591a\u4eba\u4ee5\u70ba\u5916\u5c64\u5305\u4e86\u4e00\u5c64 Imm […]<\/p>\n","protected":false},"author":1,"featured_media":1225,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[86],"tags":[124,126],"_links":{"self":[{"href":"https:\/\/boochlin.com\/index.php?rest_route=\/wp\/v2\/posts\/820"}],"collection":[{"href":"https:\/\/boochlin.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/boochlin.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/boochlin.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/boochlin.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=820"}],"version-history":[{"count":11,"href":"https:\/\/boochlin.com\/index.php?rest_route=\/wp\/v2\/posts\/820\/revisions"}],"predecessor-version":[{"id":1544,"href":"https:\/\/boochlin.com\/index.php?rest_route=\/wp\/v2\/posts\/820\/revisions\/1544"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/boochlin.com\/index.php?rest_route=\/wp\/v2\/media\/1225"}],"wp:attachment":[{"href":"https:\/\/boochlin.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=820"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/boochlin.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=820"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/boochlin.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=820"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}