Question
I'm developing a single-page web application for Tizen TV where I use multiple divs that I hide/show to simulate page changes. This approach is necessary because I'm using a NaCl module that's instantiated on one HTML page and shouldn't be reinitialized with each page change.
The specific issue I'm facing involves overlapping lists in caph-list. For example:
- Initial array:
list1 = ["first","second","third"] - First render works fine
- After pressing RETURN on the remote, I go back one div and hide the current div
- When I update the array to
list1 = ["fourth","fifth"]and return to the caph-list div, the new entries overlap with the previous ones
I understand I should use reload() to solve this, but I'm having trouble implementing it correctly to update the caph-list view when the array contents change. Has anyone successfully used this method to replace caph-list contents? Could you share your implementation code?
Reference materials:
Answer
Problem Understanding
The user is experiencing content overlap in caph-list when dynamically updating the data source array. This occurs because the list isn't properly refreshed when returning to a previously visited view.
Solution Methods
- Proper List Refresh: Ensure you're correctly using the
reload()method to refresh the list when data changes - View Management: Implement proper view lifecycle management to handle list updates when showing/hiding divs
Code Examples
// Initialize your caph-list
var myList = new caph.list({
data: ["first", "second", "third"],
// other configuration options
});
// When updating the list data
function updateList(newData) {
myList.data = newData; // Update the data source
myList.reload(); // Refresh the list view
}
// Example usage:
updateList(["fourth", "fifth"]);
Additional Tips
- Make sure to call
reload()after any data changes - Consider using view state management to track when lists need refreshing
- For more complex scenarios, you might need to implement a custom refresh mechanism
