init Files

libraries/lvgl/examples/others/fragment/lv_example_fragment_1.c

@@ -0,0 +1,59 @@
+/**
+ * @file lv_example_fragment_1.c
+ * @brief Basic usage of obj fragment
+ */
+#include "../../lv_examples.h"
+
+#if LV_USE_FRAGMENT && LV_BUILD_EXAMPLES
+
+static void sample_fragment_ctor(lv_fragment_t * self, void * args);
+
+static lv_obj_t * sample_fragment_create_obj(lv_fragment_t * self, lv_obj_t * parent);
+
+static void sample_container_delete(lv_event_t * e);
+
+static lv_obj_t * root = NULL;
+
+struct sample_fragment_t {
+    lv_fragment_t base;
+    const char * name;
+};
+
+static const lv_fragment_class_t sample_cls = {
+    .constructor_cb = sample_fragment_ctor,
+    .create_obj_cb = sample_fragment_create_obj,
+    .instance_size = sizeof(struct sample_fragment_t),
+    };
+
+void lv_example_fragment_1(void)
+{
+    root = lv_obj_create(lv_screen_active());
+    lv_obj_set_size(root, LV_PCT(100), LV_PCT(100));
+    lv_fragment_manager_t * manager = lv_fragment_manager_create(NULL);
+    /* Clean up the fragment manager before objects in containers got deleted */
+    lv_obj_add_event_cb(root, sample_container_delete, LV_EVENT_DELETE, manager);
+
+    lv_fragment_t * fragment = lv_fragment_create(&sample_cls, "Fragment");
+    lv_fragment_manager_replace(manager, fragment, &root);
+}
+
+static void sample_fragment_ctor(lv_fragment_t * self, void * args)
+{
+    ((struct sample_fragment_t *) self)->name = args;
+}
+
+static lv_obj_t * sample_fragment_create_obj(lv_fragment_t * self, lv_obj_t * parent)
+{
+    lv_obj_t * label = lv_label_create(parent);
+    lv_obj_set_style_bg_opa(label, LV_OPA_COVER, 0);;
+    lv_label_set_text_fmt(label, "Hello, %s!", ((struct sample_fragment_t *) self)->name);
+    return label;
+}
+
+static void sample_container_delete(lv_event_t * e)
+{
+    lv_fragment_manager_t * manager = (lv_fragment_manager_t *) lv_event_get_user_data(e);
+    lv_fragment_manager_delete(manager);
+}
+
+#endif