Changing text from another activity Changing text from another activity android android

Changing text from another activity


android settext

You should use Android Architecture Components :

You can create a ViewModel containing LiveData of your data object (LiveData<String> in case you want to change only text).

When you will change your live data object from one Activity or Fragment all other Activities and Fragments observing for this live data object will get notified.

Official API doc has complete example with description.

android settext

Make a public method in your TabActivity that sets the TextView's text, then call getParent() from the child activity, cast it to your TabActivity class, then call that public method.

android settext

You could try implementing a handler for the parent Tab which does the job. Pass the text in a message object from each of your respective tabs. To be safe, make changes within the handler inside a runOnUI block

Recent Posts
How can I color dots in a xy scatterplot according to column value?
How to update a claim in ASP.NET Identity?
What does {0} mean when initializing an object?
Accessing members of items in a JSONArray with Java
How to log SQL statements in Spring Boot?
Powershell Get-WebSite name parameter is ignored
How to detect scroll to bottom of html element
Java synchronized method
How to test controllers with CodeIgniter?
Detect Visual Composer
Matplotlib: Specify format of floats for tick labels
Rails join a list of strings with commas and "and" before the last