DecSoft Support - Controlar el botón Back en Android

Controlar el botón Back en Android

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Juan Rubio

Buenas Tardes David, Espero que todo bien, a pesar de lo que nos toca.
Quisiera saber si es posible controlar el botón de atrás de android (back button) , estoy intentandolo con javascript pero nos echa de la aplicación, la cierra.
Nos gustaría poder controlar el botón de atras del dispositivo móvil
Muchas Gracias como siempre.

decsoft

Hola Juan,

Gracias, hombre. Yo también espero que usted y los suyos estén bien. Respecto de lo que pregunta, ¿ha probado a usar el evento "BackButton" de la app? ¿Podría servirle?

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Jordi Mesa

document.addEventListener("backbutton", onBackKeyDown, false);

function onBackKeyDown() {
    // Handle the back button
}

decsoft

Hola Jordi,

Tanto la anterior generación de AB como la actual, proporcionan un evento "BackButton", que, internamente, usan el evento que muestras. De modo, que, en principio, no haría falta "colocar" nosotros dicho evento, sino usar el que ya se proporciona. Eso no quita que no pudiera además usarse el código que muestras: podría hacerse también si se viese necesario por alguna razón.

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