底部导航图标的颜色仅在第二次点击后才更改.如何在第一次点击时进行设置? [英] Bottom navigation icon color only changed after the second tap only.how to make on first tap?

问题描述

当我单击底部导航图标时，图标的颜色不会更改.但是，如果再次单击，它将更改.

When I click bottom navigation icon the color of the icon is not changed.but if again I clicked it getting changed.

<android.support.design.widget.BottomNavigationView
            xmlns:android="http://schemas.android.com/apk/res/android"
            xmlns:app="http://schemas.android.com/apk/res-auto"
            android:id="@+id/bottom_navigation"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_alignParentBottom="true"
            app:itemBackground="@color/colorPrimary"
            app:itemIconTint="@color/btm_slctd_clr"
            app:itemTextColor="@color/btm_slctd_clr"
            app:menu="@menu/bottom_nav_menu" />`

//btm_slctd_clr

//btm_slctd_clr

<?xml version="1.0" encoding="utf-8"?>
    <selector xmlns:android="http://schemas.android.com/apk/res/android">
        <item android:state_checked="true" android:color="@color/common_signin_btn_dark_text_pressed" />
           <item android:state_checked="false" android:color="@color/color_pressed"  />
    </selector>

推荐答案

如果您第一次触摸布尔变量，则可以使用布尔变量对其进行管理.条件，并在您的布尔变量具有错误值时设置背景.

You can manage it with a boolean variable if you touch it for the first time make boolean variable true and aftertouch make boolean variable false and the whole process will proceed under the condition and set your background when your boolean variable has a false value.

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