A39模拟器

MXC-A39/lvgl/examples/widgets/spinner/index.rst

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+C
+^
+
+Simple spinner 
+""""""""""""""""""""""""""""
+
+.. lv_example:: widgets/spinner/lv_example_spinner_1
+  :language: c
+
+MicroPython
+^^^^^^^^^^^

MXC-A39/lvgl/examples/widgets/spinner/lv_example_spinner_1.c

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+#include "../../lv_examples.h"
+#if LV_USE_SPINNER && LV_BUILD_EXAMPLES
+
+void lv_example_spinner_1(void)
+{
+    /*Create a spinner*/
+    lv_obj_t * spinner = lv_spinner_create(lv_scr_act(), 1000, 60);
+    lv_obj_set_size(spinner, 100, 100);
+    lv_obj_center(spinner);
+}
+
+#endif

MXC-A39/lvgl/examples/widgets/spinner/lv_example_spinner_1.py

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+# Create a style for the Preloader
+style = lv.style_t()
+lv.style_copy(style, lv.style_plain)
+style.line.width = 10                          # 10 px thick arc
+style.line.color = lv.color_hex3(0x258)        # Blueish arc color
+
+style.body.border.color = lv.color_hex3(0xBBB) # Gray background color
+style.body.border.width = 10
+style.body.padding.left = 0
+
+# Create a Preloader object
+preload = lv.preload(lv.scr_act())
+preload.set_size(100, 100)
+preload.align(None, lv.ALIGN.CENTER, 0, 0)
+preload.set_style(lv.preload.STYLE.MAIN, style)