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i just came to know that we can set the text by using tools:text="toolsText". before this i was using android:text="androidText".
Please tell me 1.what are differences between these two feature 2.which one is best to use 3.What are there effect during ui rendering
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Android SMS is a native service that allows you to receive Short Message Service (SMS) messages on your device and send messages to other phone numbers. Standard carrier rates may apply.
EditText is used for user input. TextView is used to display text and is not editable by the user. TextView can be updated programatically at any time.
Textview : should be used for uneditable text which user wants to read but not to manipulate. e.g. News, Articles, Blogs. Plain text/ Edittext : should be used for taking user input in alphanumeric form. e.g. UserId, Comments.
Android Studio supports a variety of XML attributes in the tools namespace that enable design-time features (such as which layout to show in a fragment) or compile-time behaviors (such as which shrinking mode to apply to your XML resources).
tools:text="toolsText" is used only for Android Studio layout preview, it doesn't show text when you run an app. It's perfect, when you don't want to set a text until you do some calculations, and only then set text programmatically by yourself in activity, also you want to see preview layout when you write code in Android Studio, how it will look like when you run an app.android:text="androidText" is used to set text to a layout element, textView or a button etc.
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