Java 如何使用ripple-AndroidX修复不可见的按键效果

我在底部导航中使用background=ripple来产生压力效果，但在我的例子中，MyBottomNavigation的颜色是暗的，所以它似乎变得不可见，因为涟漪效果的颜色是灰色的，有没有其他方法来解决这个问题

//MainActivity.java

//BottomNavigation
    BottomNavigationView mBottomNav = findViewById(R.id.Bottom_Navigation);

    mBottomNav.setOnNavigationItemSelectedListener(new BottomNavigationView.OnNavigationItemSelectedListener() {
        @Override
        public boolean onNavigationItemSelected(@NonNull MenuItem menuItem) {
            Fragment selectedFragment = null;

            switch(menuItem.getItemId()){
                case R.id.Nav_Home:
                    selectedFragment = new HomePageFragment();
                    break;

                /*case R.id.Nav_Favorites:
                selectedFragment = new FavoritesPageFragment();
                    break;*/

                /*case R.id.Nav_Favorites:
                    selectedFragment = new SettingPageFragment();
                    break;*/

                case R.id.Nav_Follow:
                    selectedFragment = new FollowPageFragment();
                    break;

                /*case R.id.Nav_Chat:
                    selectedFragment = new ChatPageFragment();
                    break;*/

                case R.id.Nav_Profile:
                    selectedFragment = new ProfilePageFragment();
                    break;
            }

            getSupportFragmentManager().beginTransaction().replace(R.id.Fragment_Container, selectedFragment).commit();
            return true;
        }


    });


    mBottomNav.setItemIconTintList(null);

//activity_main.xml

<com.google.android.material.bottomnavigation.BottomNavigationView
    android:id="@+id/Bottom_Navigation"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:layout_alignParentBottom="true"
    app:menu="@menu/bottom_navigation"
    android:backgroundTint="@color/colorBlack"
    android:background="@drawable/ripple_effect_raised"
    app:itemIconTint="#ffffff"
    app:itemTextAppearanceActive="@style/navTextActive"
    app:itemTextAppearanceInactive="@style/navTextInactive"

    app:itemTextColor="#ff0000"/>

//Ripple.xml（对印刷机的影响）

//更新

//Activity.xml

<com.google.android.material.bottomnavigation.BottomNavigationView
    android:id="@+id/Bottom_Navigation"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:layout_alignParentBottom="true"
    app:menu="@menu/bottom_navigation"

    app:itemTextAppearanceActive="@style/navTextActive"
    app:itemTextAppearanceInactive="@style/navTextInactive"
    app:itemIconTint="#ffffff"
    app:itemTextColor="#FFFFFF"

    android:background="@drawable/shape"
    app:itemRippleColor="@color/bottomnav_ripple"
    />

//bottomnav_ripple.xml（我用res/color表示）

//xml（我把它放在res/drawable中）（如果我在shape.xml中使用黑色，颜色仍然不可见，所以我尝试使用紫色，但仍然是灰色）

---

仅对形状使用

android:background

，并

app:itemRippleColor

定义项目上的涟漪：

  <com.google.android.material.bottomnavigation.BottomNavigationView
      android:background="@drawable/shape"
      app:itemRippleColor="@color/bottomnav_ripple"
      ../>

和

bottomnav_ripple.xml

类似：

<selector xmlns:android="http://schemas.android.com/apk/res/android">

    <!-- Selected. -->

<item android:alpha="0.68" android:color="#21FFFF" android:state_pressed="true" android:state_selected="true"/>
<item android:alpha="0.66" android:color="#21FFFF" android:state_focused="true" android:state_hovered="true" android:state_selected="true"/>
<item android:alpha="0.62" android:color="#21FFFF" android:state_focused="true" android:state_selected="true"/>
<item android:alpha="0.54" android:color="#21FFFF" android:state_hovered="true" android:state_selected="true"/>
<item android:alpha="0.50" android:color="#21FFFF" android:state_selected="true"/>

    <!-- Unselected. -->

<item android:alpha="0.68" android:color="#FFFFFF" android:state_pressed="true"/>
<item android:alpha="0.66" android:color="#FFFFFF" android:state_focused="true" android:state_hovered="true"/>
<item android:alpha="0.62" android:color="#FFFFFF" android:state_focused="true"/>
<item android:alpha="0.54" android:color="#FFFFFF" android:state_hovered="true"/>
<item android:alpha="0.50" android:color="#FFFFFF"/>

</selector>

根据需要更改颜色和alpha通道

---

在上面添加您的xml文件帖子更新是的，这就是我想要做的，我将shape.xml和bottomnav_ripple放在drawable文件夹中，并添加了//android:background=“@drawable/shape”//app:itemRippleColor=“@drawable/bottomnav_ripple”，但它没有连接//AAPT:error:attribute itemRippleColor（又名com.indofun.android.indojoy:itemRippleColor）未找到。@SunggakiChannel

itemRippleColor

是一种不可绘制的颜色。您必须将文件放入

res/color

folder中，但此方法app:itemRippleColor在底部导航库中找不到，AAPT:error:attribute itemRippleColor（又名com.indofun.android.indojoy:itemRippleColor）找不到。@SunggakiChannel使用1.1.0-beta01版本的Anks 1.1.0-beta01有itemRippleColor，我更新了我的帖子并包含了我应用程序的图片，它看起来仍然是灰色的

<shape xmlns:android="http://schemas.android.com/apk/res/android" 
android:shape="rectangle">
<solid android:color="@android:color/holo_purple" />
<corners android:radius="7dp" />
</shape>

  <com.google.android.material.bottomnavigation.BottomNavigationView
      android:background="@drawable/shape"
      app:itemRippleColor="@color/bottomnav_ripple"
      ../>

<shape xmlns:android="http://schemas.android.com/apk/res/android" android:shape="rectangle">
  <solid android:color="@android:color/black" />
  <corners android:radius="7dp" />
</shape>

<selector xmlns:android="http://schemas.android.com/apk/res/android">

    <!-- Selected. -->

<item android:alpha="0.68" android:color="#21FFFF" android:state_pressed="true" android:state_selected="true"/>
<item android:alpha="0.66" android:color="#21FFFF" android:state_focused="true" android:state_hovered="true" android:state_selected="true"/>
<item android:alpha="0.62" android:color="#21FFFF" android:state_focused="true" android:state_selected="true"/>
<item android:alpha="0.54" android:color="#21FFFF" android:state_hovered="true" android:state_selected="true"/>
<item android:alpha="0.50" android:color="#21FFFF" android:state_selected="true"/>

    <!-- Unselected. -->

<item android:alpha="0.68" android:color="#FFFFFF" android:state_pressed="true"/>
<item android:alpha="0.66" android:color="#FFFFFF" android:state_focused="true" android:state_hovered="true"/>
<item android:alpha="0.62" android:color="#FFFFFF" android:state_focused="true"/>
<item android:alpha="0.54" android:color="#FFFFFF" android:state_hovered="true"/>
<item android:alpha="0.50" android:color="#FFFFFF"/>

</selector>