Fix examples (#183)

* Fix arc example compilation * Fix animation example * Make bar example compile and run * Fix button_click example * bar: Reduce sleep time
lvgl · Dec 22, 2024 · 80fd2a7 · 80fd2a7
1 parent eac71b2
commit 80fd2a7
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Showing 4 changed files with 25 additions and 22 deletions.
diff --git a/examples/animation.rs b/examples/animation.rs
@@ -46,18 +46,18 @@ fn main() -> Result<(), LvError> {
 
     let mut screen_style = Style::default();
     screen_style.set_bg_color(Color::from_rgb((0, 0, 0)));
-    screen.add_style(Part::Main, &mut screen_style)?;
+    screen.add_style(Part::Main, &mut screen_style);
     // Create the button
     let mut button = Btn::create(&mut screen)?;
-    button.set_align(Align::LeftMid, 30, 0)?;
-    button.set_size(180, 80)?;
+    button.set_align(Align::LeftMid, 30, 0);
+    button.set_size(180, 80);
     let mut btn_lbl = Label::create(&mut button)?;
     btn_lbl.set_text(CString::new("Click me!").unwrap().as_c_str())?;
 
     let mut btn_state = false;
 
     let mut anim = Animation::new(&mut button, Duration::from_secs(1), 0, 60, |obj, val| {
-        obj.set_align(Align::LeftMid, val, 0).unwrap()
+        obj.set_align(Align::LeftMid, val, 0)
     })?;
     anim.set_repeat_count(AnimRepeatCount::Infinite);
     anim.start();

diff --git a/examples/arc.rs b/examples/arc.rs
@@ -52,23 +52,23 @@ fn main() -> Result<(), LvError> {
     let mut screen_style = Style::default();
     screen_style.set_bg_color(Color::from_rgb((255, 255, 255)));
     screen_style.set_radius(0);
-    screen.add_style(Part::Main, &mut screen_style)?;
+    screen.add_style(Part::Main, &mut screen_style);
 
     // Create the arc object
     let mut arc = Arc::create(&mut screen)?;
-    arc.set_size(150, 150)?;
-    arc.set_align(Align::Center, 0, 10)?;
-    arc.set_start_angle(135)?;
-    arc.set_end_angle(135)?;
+    arc.set_size(150, 150);
+    arc.set_align(Align::Center, 0, 10);
+    arc.set_start_angle(135);
+    arc.set_end_angle(135);
 
     let mut loading_lbl = Label::create(&mut screen)?;
     loading_lbl.set_text(CString::new("Loading...").unwrap().as_c_str())?;
-    loading_lbl.set_align(Align::OutTopMid, 0, 0)?;
+    loading_lbl.set_align(Align::OutTopMid, 0, 0);
     //loading_lbl.set_label_align(LabelAlign::Center)?;
 
     let mut loading_style = Style::default();
     loading_style.set_text_color(Color::from_rgb((0, 0, 0)));
-    loading_lbl.add_style(Part::Main, &mut loading_style)?;
+    loading_lbl.add_style(Part::Main, &mut loading_style);
 
     let mut angle = 0;
     let mut forward = true;

diff --git a/examples/bar.rs b/examples/bar.rs
@@ -33,12 +33,12 @@ fn main() -> Result<(), LvError> {
     let mut screen_style = Style::default();
     screen_style.set_bg_color(Color::from_rgb((255, 255, 255)));
     screen_style.set_radius(0);
-    screen.add_style(Part::Main, &mut screen_style)?;
+    screen.add_style(Part::Main, &mut screen_style);
 
     // Create the bar object
     let mut bar = Bar::create(&mut screen)?;
-    bar.set_size(175, 20)?;
-    bar.set_align(Align::Center, 0, 10)?;
+    bar.set_size(175, 20);
+    bar.set_align(Align::Center, 0, 10);
     bar.set_range(0, 100)?;
     bar.on_event(|_b, _e| {
         println!("Completed!");
@@ -47,24 +47,27 @@ fn main() -> Result<(), LvError> {
     // Set the indicator style for the bar object
     let mut ind_style = Style::default();
     ind_style.set_bg_color(Color::from_rgb((100, 245, 100)));
-    bar.add_style(Part::Any, &mut ind_style)?;
+    bar.add_style(Part::Any, &mut ind_style);
 
     let mut loading_lbl = Label::create(&mut screen)?;
     loading_lbl.set_text(CString::new("Loading...").unwrap().as_c_str())?;
-    loading_lbl.set_align(Align::OutTopMid, 0, 0)?;
+    loading_lbl.set_align(Align::OutTopMid, 0, 0);
 
     let mut loading_style = Style::default();
     loading_style.set_text_color(Color::from_rgb((0, 0, 0)));
-    loading_lbl.add_style(Part::Main, &mut loading_style)?;
+    loading_lbl.add_style(Part::Main, &mut loading_style);
 
     let mut i = 0;
     'running: loop {
         let start = Instant::now();
         if i > 100 {
             i = 0;
-            lvgl::event_send(&mut bar, Event::Clicked)?;
+            // Enabling this line gives the followong errors:
+            // - error[E0597]: `ind_style` does not live long enough when adding an style to the bar
+            // - implementation of `Widget` is not general enough
+            // lvgl::event_send(&mut bar, Event::Clicked);
         }
-        bar.set_value(i, AnimationState::ON)?;
+        bar.set_value(i, AnimationState::ON);
         i += 1;
 
         lvgl::task_handler();

diff --git a/examples/button_click.rs b/examples/button_click.rs
@@ -45,11 +45,11 @@ fn main() -> Result<(), LvError> {
 
     let mut screen_style = Style::default();
     screen_style.set_bg_color(Color::from_rgb((0, 0, 0)));
-    screen.add_style(Part::Main, &mut screen_style)?;
+    screen.add_style(Part::Main, &mut screen_style);
     // Create the button
     let mut button = Btn::create(&mut screen)?;
-    button.set_align(Align::LeftMid, 30, 0)?;
-    button.set_size(180, 80)?;
+    button.set_align(Align::LeftMid, 30, 0);
+    button.set_size(180, 80);
     let mut btn_lbl = Label::create(&mut button)?;
     btn_lbl.set_text(CString::new("Click me!").unwrap().as_c_str())?;