ionic framework - Inoic 3, Android: How to only allow number input field? -


i have input field this:

.html file:

<ion-input formcontrolname="codepin"             type="tel"             pattern="[0-9]*"             class="itemborder"             placeholder="only number"             maxlength="4"             style="-webkit-text-security:disc"            [(ngmodel)]="codepin" (keydown)="isvalidnumber($event)"> </ion-input>

.ts file:

isvalidnumber(event) {     //return /\d|backspace/.test(event.key);     if ([8, 13, 27, 37, 38, 39, 40].indexof(event.keycode) > -1) {         // backspace, enter, escape, arrows         return true;     } else if (event.keycode >= 48 && event.keycode <= 57) {         // numbers 0 9         return true;     } else if (event.keycode >= 96 && event.keycode <= 105) {         // numpad number         return true;     }     return false; }

the problem is, runs ok in ionic serve's lab, ios, not working in android. please explain me how fix this. thanks.


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