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並前往https://stackoverflow.com/questions/58497365/how-to-give-requestfocus-for-first-search-of-a-text-in-the-layout-in-android

How to give .requestFocus() for first search of a text in the ...

Request focus is only for the views not for the primitive data types. For the Textview to keep in focus by using XML or programmatically,

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