问题
I'm trying to create a spinner with some background color and dropdownicon.But whenever i'm applying the background color the dropdown icon disappers.So how to have Spinner with dropdown icon & with different background color. Please have a look on the xml that i'm trying below:
Expected OutPut:
Getting (without drop down icon)
Background removed then i'm getting the following output:
<android.support.v7.widget.CardView
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_marginLeft="@dimen/dp_5"
android:layout_marginRight="@dimen/dp_5"
android:layout_weight="8"
android:padding="@dimen/dp_8"
app:cardElevation="@dimen/dp_5">
<android.support.v7.widget.AppCompatSpinner
android:id="@+id/appCompatSpinner"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:entries="@array/clubName"
android:textAlignment="center"
android:spinnerMode="dropdown"
android:background="@color/colorPrimary_blue"
app:popupTheme="@style/ThemeOverlay.AppCompat.Light">
</android.support.v7.widget.AppCompatSpinner>
</android.support.v7.widget.CardView>
回答1:
Create .xml Class and write this coad.
<?xml version="1.0" encoding="utf-8"?>
<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
<item>
<color android:color="@color/InputBg" />
</item>
<item android:gravity="center_vertical|right" android:right="8dp">
<layer-list>
<item android:width="12dp" android:height="12dp" android:gravity="center" android:bottom="10dp">
<rotate
android:fromDegrees="45"
android:toDegrees="45">
<shape android:shape="rectangle">
<solid android:color="#666666" />
<stroke android:color="#aaaaaa" android:width="1dp"/>
</shape>
</rotate>
</item>
<item android:width="30dp" android:height="10dp" android:bottom="21dp" android:gravity="center">
<shape android:shape="rectangle">
<solid android:color="@color/InputBg"/>
</shape>
</item>
</layer-list>
</item>
And Apply like this in Spinner.
<Spinner
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="@drawable/spinner_bg" />
回答2:
Simple workaround to this just wrap your spinner in framelayout and set the background color of layout of your choice
<FrameLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="@color/blue"
>
<Spinner
android:layout_width="match_parent"
android:layout_height="wrap_content"
/>
</FrameLayout>
来源:https://stackoverflow.com/questions/44513126/spinner-background-color-with-dropdowndown-icon