WebDescription Display a text or hide view if value is null or empty for TextView Demo Code //package com.java2s; import android.text.TextUtils; import android.view. View; import … Web1. Use TextWatcher. Create an instance of android.text.TextWatcher. Override it’s afterTextChanged (Editable editable) method. In that method, get the EditText text length and disable or enable related button accordingly. Call EditText’s addTextChangedListener (TextWatcher tw) method to add that text watcher to the edit text.
android - Loop to check isNullOrEmpty then setVisibility …
WebJul 30, 2024 · This example demonstrate about How to use isEmpty () in Android textview. Step 1 − Create a new project in Android Studio, go to File ⇒ New Project and fill all … WebAug 23, 2024 · Phone validation is useful for users to check whether the number entered by the user is a valid number or not. If the user has entered the number is not valid then it will show a Toast message to re-enter the number. In this article, we are going to discuss how to implement the phone number validator in Android step by step. ebay best selling products : accessories
java - Check if TextView is empty? - Stack Overflow
WebSep 13, 2024 · 1. If all your objects ( description, ingredient) share a common type then you can add them to a collection and loop on it. However, you don't know which text_view is linked to it. So you should add them to a map. I suppose that description and ingredients are String, then you can do something like. Map viewsByString = new ... WebIt may be a good idea to check and see the rest of the code to see if maybe something is happening somewhere else. Sorry if this is not particularly helpful. If all of this checks out and the problem is not being created in one of those areas this link may help: Android: list.getCheckedItemPositions() always returns null WebJan 30, 2024 · Setting text of CheckedTextView In Java class: CheckedTextView simpleCheckedTextView = (CheckedTextView) … ebay beswick large horse