fix(sdk+launcher): 图标不渲染真根因(agent-219) — meow_ui_img.c scale_buf cover 采样把乘写成除(÷缩放比→采到源图左上角透明区,全丢); 改乘+居中裁剪偏移修正; 宿主旧测试用纯色图掩盖了该bug。+ main_menu App退出/结构变化重绘时 fb_pan_buf0_force 无条件pan回buffer0(防App翻页留buffer1致菜单残帧)

meow_ui.a→3e0ee8f7 launcher→9d0efc2f hello→9609ea6e files→90f5cf07 ncm→be8be221(均已上卡); 真机截图证据 .tmp/meowbug/fix1.png+fix_b2_after.png

patch_v2/files_app/app.c

@@ -10,14 +10,74 @@
  * 文本预览换页（push ACT_VIEWER）。退出=在根目录左滑或 SIGTERM（看门狗）。
  */
 #include "files_internal.h"
+#include "meow_notify_ipc.h"   /* §6.2 二期：picker 结果经 MSG_PICKER_RESULT 回传 */
+#include "meow_ipc.h"
 
 #include <signal.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
 
 static meow_view *g_browser_view;
 static meow_view *g_viewer_view;
 
 static void on_sigterm(int s) { (void)s; meow_ui_request_exit(); }
 
+/* ============================================================ */
+/* §6.2 二期：picker 模式（launcher 注入 MEOW_PICKER_* → 选文件返回路径） */
+/* ============================================================ */
+static char     g_picker_action[24];
+static char     g_picker_caller[MEOW_APP_ID_MAX];
+static uint32_t g_picker_req_id;
+static int      g_picker_active;
+
+int picker_active(void)          { return g_picker_active; }
+const char *picker_action(void)  { return g_picker_action; }
+uint32_t   picker_req_id(void)   { return g_picker_req_id; }
+
+static void picker_init(void)
+{
+    const char *a = getenv("MEOW_PICKER_ACTION");
+    if (!a || !a[0]) return;
+    snprintf(g_picker_action, sizeof g_picker_action, "%s", a);
+    g_picker_active = 1;
+    const char *c = getenv("MEOW_PICKER_CALLER");
+    if (c) snprintf(g_picker_caller, sizeof g_picker_caller, "%s", c);
+    const char *r = getenv("MEOW_PICKER_REQ_ID");
+    g_picker_req_id = r ? (uint32_t)atoi(r) : 0;
+    meow_log(MEOW_LOG_INFO, "picker: mode action=%s req=%u caller=%s",
+             g_picker_action, g_picker_req_id, g_picker_caller);
+}
+
+/* 选文件：发 MSG_PICKER_RESULT（OK+路径）+ 请求退出。best-effort（launcher 不在静默）。 */
+void picker_return_file(const char *path)
+{
+    m_picker_result_t r;
+    memset(&r, 0, sizeof r);
+    snprintf(r.caller, sizeof r.caller, "%s", g_picker_caller);
+    r.req_id = g_picker_req_id;
+    snprintf(r.action, sizeof r.action, "%s", g_picker_action);
+    r.code = MEOW_OK;
+    if (path) snprintf(r.value, sizeof r.value, "%s", path);
+    (void)meow_notify_ipc_send_raw(MSG_PICKER_RESULT, &r, (uint32_t)sizeof r, 1);
+    meow_log(MEOW_LOG_INFO, "picker: return path=%s", path ? path : "");
+    meow_ui_request_exit();
+}
+
+/* 取消：发 MSG_PICKER_RESULT（MEOW_ERR_NOENT+空值）+ 请求退出。 */
+void picker_cancel(void)
+{
+    m_picker_result_t r;
+    memset(&r, 0, sizeof r);
+    snprintf(r.caller, sizeof r.caller, "%s", g_picker_caller);
+    r.req_id = g_picker_req_id;
+    snprintf(r.action, sizeof r.action, "%s", g_picker_action);
+    r.code = MEOW_ERR_NOENT;             /* 用户取消 */
+    (void)meow_notify_ipc_send_raw(MSG_PICKER_RESULT, &r, (uint32_t)sizeof r, 1);
+    meow_log(MEOW_LOG_INFO, "picker: cancel");
+    meow_ui_request_exit();
+}
+
 /* ============================================================ */
 /* 事件分发：meow_ui_run 平铺回调 → 当前页                          */
 /* ============================================================ */
@@ -38,9 +98,10 @@ static void app_on_swipe(int dir, int dx, int dy)
 {
     (void)dx;
     if (dir == MEOW_SWIPE_LEFT) {
-        /* 左缘返回：预览页→回目录；浏览器→上级目录；到根→退出 App。 */
+        /* 左缘返回：预览页→回目录；浏览器→上级目录；到根→退出 App（picker 模式则取消）。 */
         if (viewer_is_active())  { meow_view_page_pop(); return; }
         if (browser_is_active() && browser_go_up()) return;
+        if (picker_active()) { picker_cancel(); return; }   /* §6.2 二期：根屏左滑=取消 picker */
         meow_log(MEOW_LOG_INFO, "exit:swipe");
         meow_ui_request_exit();
         return;
@@ -88,6 +149,7 @@ int main(void)
     meow_theme_add_listener(NULL);
 
     signal(SIGTERM, on_sigterm);
+    picker_init();   /* §6.2 二期：读 MEOW_PICKER_* 决定是否进入 picker 模式 */
 
     /* 建两页 view（on_create 建各自控件/状态 + 读卡扫首个目录） */
     g_browser_view = browser_view_create();

patch_v2/files_app/app.json

@@ -1 +1 @@
-{"name":"Files","exec":"/usr/data/mnt/sd_0/MeowAPPs/os.meow.files/files","package":"os.meow.files","version":"0.1","framework":1,"immersive":1,"author":"MeowOS"}
+{"name":"Files","exec":"/usr/data/mnt/sd_0/MeowAPPs/os.meow.files/files","package":"os.meow.files","version":"0.1","framework":1,"immersive":1,"author":"MeowOS","route.pick":"pick","picker.pick_file":"pick"}

patch_v2/files_app/build_files.sh

@@ -9,7 +9,7 @@ cd "$(dirname "$0")"
 ROOT="$HOME/Project/R3ProII"
 CC="$ROOT/.tools/zig-mipsel-cc"
 SYSROOT="$ROOT/.tools/mipsel-linux-muslsf-cross/mipsel-linux-muslsf"
-"$CC" -Os -static -Wall -Wextra -I../sdk -I. \
+"$CC" -Os -static -Wall -Wextra -I../sdk -I../meow_launcherd -I. \
     app.c ui/browser.c ui/viewer.c ui/common/chrome.c logic/fsx.c \
     ../sdk/meow_ui.a "$SYSROOT/lib/libz.a" -lpthread -o files
 ls -la files

patch_v2/files_app/files_internal.h

@@ -23,6 +23,16 @@
 #define ACT_BROWSER 0
 #define ACT_VIEWER  1
 
+/* ---- picker 模式（AMSD_DESIGN §6.2 二期）----
+ * launcher 注入 MEOW_PICKER_ACTION/REQ_ID/CALLER（amsd `am picker` 路由到本 App）。
+ * 非空 ACTION → 本 App 进入「选文件」picker 模式：浏览目录、点文件=返回路径（经
+ * MSG_PICKER_RESULT 发回 launcher→amsd）+ 退出；返回/左滑退出=取消。 */
+int        picker_active(void);          /* 1=进入 picker 模式（MEOW_PICKER_ACTION 非空） */
+const char *picker_action(void);
+uint32_t   picker_req_id(void);
+void       picker_return_file(const char *path);  /* 选文件：发 MSG_PICKER_RESULT + 请求退出 */
+void       picker_cancel(void);                    /* 取消：发 code=MEOW_ERR_NOENT + 请求退出 */
+
 /* ---- 布局 ---- */
 #define APP_W       480
 #define APP_H       720

patch_v2/files_app/ui/browser.c

@@ -322,10 +322,12 @@ int browser_on_tap(int x, int y)
         int row = meow_listview_hit(g_list, x, y);   /* 行号（含滚动换算；禁用行 -1） */
         if (row < 0) { browser_drag_reset(); return 1; }   /* 命中列表但无有效行（空隙） */
         int op = meow_listview_hit_op(g_list, x, y);       /* 行右 1/3 = 操作区 */
-        if (op) browser_open_sheet(row);
-        else {
+        if (op) {
+            if (!picker_active()) browser_open_sheet(row);   /* §6.2 二期：picker 模式不弹 sheet */
+        } else {
             fsx_entry *e = &g_entries[row];
             if (e->is_dir) browser_enter_dir(e->path);
+            else if (picker_active()) picker_return_file(e->path);   /* picker：点文件=返回路径 */
             else           browser_open_file(e->path);
         }
         browser_drag_reset();
@@ -389,6 +391,7 @@ void browser_swipe(int dir, int dist)
  * TAP（不再触发行体/打开动作），故这里无需再吞后续 tap；打开前清按下高亮与拖动态。 */
 void browser_on_long_press(int x, int y)
 {
+    if (picker_active()) return;   /* §6.2 二期：picker 模式无长按 BottomSheet */
     if (g_err != 0 || g_n == 0) return;
     if (!meow_widget_hit(g_list, x, y)) return;
     int row = meow_listview_hit(g_list, x, y);
@@ -410,7 +413,11 @@ static void browser_page_create(meow_view *v, void *ctx)
     if (r_list.h < 0) r_list.h = 0;
     strncpy(g_cur, FSX_SD_ROOT, sizeof g_cur - 1);
     g_cur[sizeof g_cur - 1] = '\0';
-    g_tb = app_topbar_create("Files", 1, "NEW");
+    /* §6.2 二期：picker 模式 topbar 标题「Pick a file」且无 NEW 动作（点文件即选）。 */
+    if (picker_active())
+        g_tb = app_topbar_create("Pick a file", 1, NULL);
+    else
+        g_tb = app_topbar_create("Files", 1, "NEW");
     /* 结构化列表：行数据源 browser_src2；单选模式（行高亮用 selected，§5.8.3） */
     g_list = meow_listview_create(r_list.x, r_list.y, r_list.w, r_list.h, 0,
                                   browser_src2, NULL, MEOW_LIST_SEL_SINGLE);