[英]Android - Change Custom Spinner's DropDownItem style
I got a custom spinner, and I'm trying to replace the 9-patch background / the triangle in the DropDownSelector. 我有一个自定义微调器,我正在尝试替换DropDownSelector中的9补丁背景/三角形。
I just can't get it to work right though. 我只是无法让它正常工作。 I end up with (the white box is a test asset):
我最终(白盒子是测试资产):
the new 9 patch gets shown, but it messes up the padding, and it looks like a Spinner inside a Spinner. 显示了新的9补丁,但是它弄乱了填充,它看起来像一个Spinner内的Spinner。
Here's what it looks like without the 9 patch added: 这是没有添加9补丁的情况:
This is what I want it to look like, but then with the new 9patch instead of the old one, not the Spinner in Spinner effect. 这就是我想要的样子,但是后来使用新的9patch而不是旧的,而不是Spinner的Spinner效果。
Here's my code: 这是我的代码:
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="horizontal"
android:layout_width="match_parent"
android:layout_height="match_parent">
<Spinner xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/spinner2"
android:layout_width="wrap_content"
android:layout_height="fill_parent"
android:layout_alignParentRight="true"
android:gravity="center_horizontal"/>
</RelativeLayout>
I add this RelativeLayout to the Actionbar, and set a custom spinner adapter: 我将此RelativeLayout添加到Actionbar,并设置自定义微调器适配器:
SpinnerAdapter mSpinnerAdapter = (new SpinnerCustomAdapterDark(this, R.layout.customSpinnerTitleLayout, categoryNames ));
spinner = findViewById(R.id.spinner2);
categorySpinnerMenuitem = (Spinner) spinner;
categorySpinnerMenuitem.setAdapter(mSpinnerAdapter);
This is the CustomSpinnerTitleLayout set to the adapter: 这是设置为适配器的CustomSpinnerTitleLayout:
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="horizontal"
style="?android:attr/spinnerDropDownItemStyle"
android:paddingRight="0dp" >
<ImageView
android:id="@+id/spinner_image"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="@drawable/icon"
android:layout_gravity="center"
android:paddingRight="0dp"
/>
</LinearLayout>
This is the Theme where I add the 9 patch 这是我添加9补丁的主题
<resources>
<style name="CustomTheme" parent="@style/Theme.AppCompat.Light.DarkActionBar">
<item name="android:spinnerDropDownItemStyle">@style/customActionBarDropDownStyle</item>
</style>
<style name="customActionBarDropDownStyle" parent="@android:style/Widget.Holo.Light.ListView" >
<item name="android:background">@drawable/spinner9patch</item>
</style>
</resources>
I'm obviously doing something wrong, but what? 我显然做错了什么,但是什么? I've tried to set the spinnerDropDownItemStyle and the spinnerStyle at the Spinner in the first layout file, what didn't do anything.
我试图在第一个布局文件中的Spinner处设置spinnerDropDownItemStyle和spinnerStyle,什么都没做。 What am I doing wrong here?
我在这做错了什么?
Thanks in advance!! 提前致谢!!
Create an XML in drawable folder with any name for example spinner_bg.xml
and add the following lines 在可绘制文件夹中使用任何名称创建XML,例如
spinner_bg.xml
并添加以下行
<?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/spinner_ab_default_holo_dark_am" /> // you can use any other image here, instead of default_holo_dark_am
</item>
</layer-list></item>
</selector>
Add the following lines to your styles.xml
which is inside values folder styles.xml
添加到styles.xml
文件夹内的styles.xml
中
<style name="spinner_style" >
<item name="android:background">@drawable/spinner_bg</item>
<item name="android:layout_marginLeft">10dp</item>
<item name="android:layout_marginRight">10dp</item>
<item name="android:layout_marginBottom">10dp</item>
<item name="android:paddingLeft">8dp</item>
<item name="android:paddingTop">5dp</item>
<item name="android:paddingBottom">5dp</item>
Now add this style to your spinner as 现在将此样式添加到您的微调器中
<Spinner
android:id="@+id/spinner1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
style="@style/spinner_style"
android:popupBackground="#cccccc" />
我真的建议你在网上检查这个,只需制作你的自定义微调器,然后下载文件http://jgilfelt.github.io/android-actionbarstylegenerator/
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