android - Issue with open keyboard -

scenario 1 :

when open app

• go inside of fragment
• try enter digit works well

scenario 2 :

when open app

• access navigation drawer
• open fragment navigation drawer
• return main fragment
• go inside of fragment , try enter digit
• keyboard not open

you can manage force show , hide keyboard way:

private void hidekeyboard() {     ((inputmethodmanager) getsystemservice(context.input_method_service)).hidesoftinputfromwindow(invisibleedit.getwindowtoken(), 0); }  private void showkeyboard() {     inputmethodmanager imm = (inputmethodmanager)             getsystemservice(context.input_method_service);     if(imm != null){         imm.togglesoftinput(inputmethodmanager.show_implicit, 0);     } }