diff --git a/demos/assets.c b/demos/assets.c
index 047f0a897..f6e49b5dd 100644
--- a/demos/assets.c
+++ b/demos/assets.c
@@ -281,7 +281,7 @@
 #include "assets/inc/images/3.data"
 #include "assets/inc/images/arrow_left_n.data"
 #include "assets/inc/images/edit_clear_p.data"
-#endif/*WITH_STB_IMAGE*/
+#endif /*WITH_STB_IMAGE*/
 #ifdef WITH_VGCANVAS
 #include "assets/inc/images/pointer_4.bsvg"
 #include "assets/inc/images/pointer_2.bsvg"
@@ -294,17 +294,17 @@
 #include "assets/inc/images/pointer_red.bsvg"
 #include "assets/inc/images/pointer_big.bsvg"
 #include "assets/inc/images/girl.bsvg"
-#endif/*WITH_VGCANVAS*/
+#endif /*WITH_VGCANVAS*/
 #ifdef WITH_STB_FONT
 #ifdef WITH_MINI_FONT
 #include "assets/inc/fonts/default.mini.res"
-#else/*WITH_MINI_FONT*/
+#else /*WITH_MINI_FONT*/
 #include "assets/inc/fonts/default.res"
-#endif/*WITH_MINI_FONT*/
-#else/*WITH_STB_FONT*/
+#endif /*WITH_MINI_FONT*/
+#else  /*WITH_STB_FONT*/
 #include "assets/inc/fonts/default.data"
-#endif/*WITH_STB_FONT*/
-#endif/*WITH_FS_RES*/
+#endif /*WITH_STB_FONT*/
+#endif /*WITH_FS_RES*/
 
 ret_t assets_init(void) {
   assets_manager_t* rm = assets_manager();
@@ -508,7 +508,7 @@ ret_t assets_init(void) {
   assets_manager_add(rm, image_pointer_red);
   assets_manager_add(rm, image_pointer_big);
   assets_manager_add(rm, image_girl);
-#endif/*WITH_VGCANVAS*/
+#endif /*WITH_VGCANVAS*/
 #endif
 
   tk_init_assets();
diff --git a/docs/changes.md b/docs/changes.md
index 2e0abc558..540b958a5 100644
--- a/docs/changes.md
+++ b/docs/changes.md
@@ -1,4 +1,9 @@
 # 最新动态
+* 2018/11/21
+  * 修改资源生成工具支持SVG。
+  * 修改slide\_view，增加一个拖动阀值，由该阀值和速度共同决定是否切换页面。
+  * 修改一些编译警告。
+
 * 2018/11/20
   * 合并BUG #35的补丁。
   * 合并BUG #25的补丁。
diff --git a/src/ext_widgets/slide_view/slide_view.c b/src/ext_widgets/slide_view/slide_view.c
index 40f760088..3d027348e 100644
--- a/src/ext_widgets/slide_view/slide_view.c
+++ b/src/ext_widgets/slide_view/slide_view.c
@@ -97,7 +97,9 @@ ret_t slide_view_activate_next(slide_view_t* slide_view) {
 }
 
 static ret_t slide_view_on_paint_self(widget_t* widget, canvas_t* c) {
-  return widget_paint_helper(widget, c, NULL, NULL);
+  (void)widget;
+  (void)c;
+  return RET_OK;
 }
 
 static ret_t slide_view_on_pointer_down(slide_view_t* slide_view, pointer_event_t* e) {
@@ -131,6 +133,8 @@ static ret_t slide_view_on_scroll_done(void* ctx, event_t* e) {
   return RET_OK;
 }
 
+#define DRAG_THRESHOLD 30
+
 static ret_t slide_view_on_pointer_up(slide_view_t* slide_view, pointer_event_t* e) {
   uint32_t v_threshhold = 100;
   widget_t* widget = WIDGET(slide_view);
@@ -151,6 +155,9 @@ static ret_t slide_view_on_pointer_up(slide_view_t* slide_view, pointer_event_t*
     } else if (yoffset < 0 && slide_view_get_next(slide_view) == NULL) {
       rollback = TRUE;
     }
+    if (tk_abs(yoffset) < DRAG_THRESHOLD) {
+      rollback = TRUE;
+    }
 
     if (!rollback) {
       yoffset_end = yoffset > 0 ? h : -h;
@@ -169,6 +176,9 @@ static ret_t slide_view_on_pointer_up(slide_view_t* slide_view, pointer_event_t*
     } else if (xoffset < 0 && slide_view_get_next(slide_view) == NULL) {
       rollback = TRUE;
     }
+    if (tk_abs(xoffset) < DRAG_THRESHOLD) {
+      rollback = TRUE;
+    }
 
     if (!rollback) {
       xoffset_end = xoffset > 0 ? w : -w;