Changing spinner arrow, Appcompat v21

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情深已故 2021-02-04 17:56

i have activities which i themed with my custom theme, but for spinner i choosed to style it with Appcompat v21 but i got this :

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5条回答
  • 2021-02-04 18:35

    you could tint it with the attribute tint color.

    <Spinner android:id="@+id/spinner"
             android:layout_width="wrap_content"
             android:layout_height="match_parent"
             android:backgroundTint="@color/white"
    />
    
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  • 2021-02-04 18:39

    Might be late but better late than never. To respond to your question: "Is there a way to use it only in spinner?". The answer is yes, refer to the code below.

    Add this code to your theme or style file

    <style name="customSpinnerTheme" parent="yourAppThemeThatUseAppCompat21">
        <item name="colorControlNormal">#eaeaea</item>
        <item name="colorControlActivated">#000000</item>
        <item name="colorControlHighlight">#000000</item>
    </style>
    

    Then in your XML that use spinner you can add this line

    android:theme="@style/customSpinnerTheme"
    

    e.g.

    <Spinner
        android:theme="@style/customSpinnerTheme"
        android:id="@+id/spinner"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_marginLeft="8dp"
        android:layout_marginRight="8dp"
        android:spinnerMode="dialog" />
    
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  • 2021-02-04 18:39

    look at below code. create spinner_bg.xml under drawable folder

    <?xml version="1.0" encoding="utf-8"?>
    <selector xmlns:android="http://schemas.android.com/apk/res/android">
        <item><layer-list>
                <item><shape>
                        <gradient android:angle="270" android:centerColor="#d0d0d0" android:endColor="#c5c6c6" android:startColor="#dbdadb" android:type="linear" />
                        <stroke android:width="1dp" android:color="#7a7a7a" />
                        <corners android:radius="1dp" />
                        <padding android:left="3dp" android:right="3dp" />
                    </shape></item>
                <item><bitmap android:gravity="center|right" android:src="@drawable/dropdown_icon_black" />
                </item>
            </layer-list></item>
    </selector>
    

    write down below code in styles.xml

    <style name="spinner_style">
            <item name="android:background">@drawable/spinner_bg</item>
    </style>
    

    Apply style to spinner

    <Spinner
        android:id="@+id/spinner"
        style="@style/spinner_style"
        android:layout_width="fill_parent"
        android:layout_height="40dp"
        android:layout_centerHorizontal="true"
        android:layout_centerVertical="true"
        android:focusable="true"
        android:overlapAnchor="false"
        android:paddingRight="10dp"
        android:spinnerMode="dropdown"
        android:textColor="@android:color/white" /> 
    

    use this image for spinner drawable

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  • 2021-02-04 18:54

    There is a way to change your arrow color... actually it's not color you can change this image with blue color image.. create a xml file myspinner_selector in your drawable folder and paste

    <?xml version="1.0" encoding="utf-8"?>
    <selector xmlns:android="http://schemas.android.com/apk/res/android">
    
      <item><layer-list>
            <item><shape>
                    <gradient android:angle="90" android:endColor="#ffffff" android:startColor="#ffffff" android:type="linear" />
    
                    <stroke android:width="1dp" android:color="#504a4b" />
    
                    <corners android:radius="5dp" />
    
                    <padding android:bottom="3dp" android:left="3dp" android:right="3dp" android:top="3dp" />
                </shape></item>
            <item ><bitmap android:gravity="bottom|right" android:src="@drawable/blue_arrow" />   // you can use any other image here, instead of default_holo_dark_am
            </item>
          </layer-list></item>
    
     </selector>  
    

    blue_arrow is an image, and add this style in your style file

     <style name="spinner_style" >
            <item name="android:background">@drawable/myspinner_selector</item>
            <item name="android:layout_marginLeft">5dp</item>
            <item name="android:layout_marginRight">5dp</item>
            <item name="android:layout_marginBottom">5dp</item>
            <item name="android:paddingLeft">5dp</item>
            <item name="android:paddingTop">5dp</item>
            <item name="android:paddingBottom">5dp</item>
    
            </style>
    

    finally add this style in your spinner

     <Spinner
            android:id="@+id/spinner1"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            style="@style/spinner_style"           
    
             />
    

    it look like this. you need to customize enter image description here

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  • 2021-02-04 18:55

    Since you are using AppCompat-v21, you can take advantage of the new material design styles attributes:

    colorPrimary: your app branding color for the app bar, applies to action bar

    colorPrimaryDark: darker variant for the status bar and contextual app bars

    colorAccent: lets you define bright complement to the primary branding color. By default, this is the color applied to framework controls (via colorControlActivated)

    colorControlNormal: color applied to framework controls in their normal state

    colorControlActivated: applied to framework controls in their activated

    Here is an example for you

    styles.xml

    <!-- Base application theme. -->
    <style name="AppTheme" parent="Theme.AppCompat.Light.DarkActionBar">
        <!-- colorPrimary is used for the default action bar background -->
        <item name="colorPrimary">@color/primary</item>
        <!-- colorPrimaryDark is used for the status bar -->
        <item name="colorPrimaryDark">@color/primary_dark</item>
        <!-- colorAccent is used as the default value for colorControlActivated which is used to tint widgets -->
        <item name="colorAccent">@color/accent</item>
        <item name="colorControlNormal">@color/primary</item>
    </style>
    

    colors.xml

    <resources>
        <color name="primary">#ff0000ff</color>
        <color name="primary_dark">#ff0000af</color>
        <color name="accent">#870000ff</color>
        <color name="white">#ffffffff</color>
    </resources>
    

    Here is how it looks

    enter image description here

    Hope this helps.

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