我想創建我的第一個 Spinner。
作業正常，但如果我嘗試放置“展開更多”箭頭，則會引發例外。
如果我從gradient_spinner.xml 中洗掉專案/位圖部分，則可以正常作業而不會出錯。
布局/activity_settings.xml：
<LinearLayout
style="?metaButtonBarStyle"
android:id="@ id/activity_settings_ll03_hori"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical"
android:paddingTop="10dp"
android:layout_marginBottom="10dp"
android:background="@drawable/button_draw_head_yellow"
>
<TextView
android:id="@ id/storesSettingsTextview"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:gravity="center"
android:text="@string/store_settings"
android:textColor="@color/dark_grey"
android:textSize="20sp"
android:textStyle="bold" />
<Spinner
android:id="@ id/storeList"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
style="@style/Widget.App.Spinner"
/>
</LinearLayout>
樣式檔案
<resources>
<!-- Base application theme. -->
<style name="AppTheme" parent="@style/Theme.AppCompat">
<!-- Customize your theme here. -->
<item name="colorPrimary">@color/colorPrimary</item>
<item name="colorPrimaryDark">@color/colorPrimaryDark</item>
<item name="colorAccent">@color/colorAccent</item>
<item name="spinnerStyle">@style/Widget.App.Spinner</item>
<item name="android:spinnerStyle">@style/Widget.App.Spinner</item>
</style>
<style name="CheckBoxGreyGreen" parent="@style/Theme.AppCompat.Light">
<item name="colorControlNormal">@color/dark_grey</item>
<item name="colorControlActivated">@color/box_green</item>
</style>
<style name="RadioButtonGreyGreen" parent="@style/Theme.AppCompat.Light">
<item name="colorControlNormal">@color/dark_grey</item>
<item name="colorControlActivated">@color/box_green</item>
</style>
<style name="Widget.App.Spinner" parent="@style/Widget.AppCompat.Spinner">
<item name="android:layout_width">match_parent</item>
<item name="android:layout_height">wrap_content</item>
<item name="android:background">@drawable/gradient_spinner</item>
<item name="android:layout_margin">10dp</item>
<item name="android:paddingLeft">2dp</item>
<item name="android:paddingRight">2dp</item>
<item name="android:paddingTop">1dp</item>
<item name="android:paddingBottom">1dp</item>
<item name="android:popupBackground">@color/light_grey_bg</item>
</style>
</resources>
drawable/gradient_spinner.xml（不是漸變）
<item>
<layer-list>
<item>
<shape android:shape="rectangle">
<stroke android:width="1dp" android:color="#727c82" />
<corners android:radius="5dp" />
<padding android:bottom="3dp" android:left="3dp" android:right="3dp" android:top="3dp" />
</shape>
</item>
<item>
<bitmap
android:src="@drawable/ic_expand_more_black_24dp"
android:tint="@color/colorPrimary"
android:gravity="bottom|right"/>
</item>>
</layer-list>
</item>
下拉內容設計activity_store_list.xml
<?xml version="1.0" encoding="utf-8"?>
<!-- Single List Item Design -->
<TextView xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@ id/label"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:paddingLeft="18dip"
android:paddingTop="8dip"
android:paddingRight="8dip"
android:paddingBottom="8dip"
android:textSize="16sp"
android:textColor="@color/dark_grey"
android:textStyle="bold" >
</TextView>
箭頭可繪制/ic_expand_more_black_24dp.xml
<vector xmlns:android="http://schemas.android.com/apk/res/android"
android:width="24dp"
android:height="24dp"
android:viewportWidth="24"
android:viewportHeight="24">
<path
android:pathData="M16.59,8.59L12,13.17 7.41,8.59 6,10l6,6 6,-6z"
android:fillColor="#000000"/>
</vector>
AppCompActivity部分，其中config，spinner
val adapter: ArrayAdapter<*> = ArrayAdapter<String>(this, R.layout.activity_store_list, storeList )
val listSpinner= findViewById<View>(R.id.storeList) as Spinner
listSpinner.onItemSelectedListener
listSpinner.adapter = adapter
listSpinner.setSelection(ItemPosition)
listSpinner.onItemSelectedListener = this
我閱讀了許多其他堆疊流執行緒并嘗試這樣做，但對我不起作用。例如：洗掉位圖并使用箭頭項：這也拋出例外：錯誤膨脹類 Spinner
<item>
<layer-list>
<item>
<shape android:shape="rectangle">
<stroke android:width="1dp" android:color="#727c82" />
<corners android:radius="5dp" />
<padding android:bottom="3dp" android:left="3dp" android:right="3dp" android:top="3dp" />
</shape>
</item>
<item
android:src="@drawable/ic_expand_more_black_24dp"
android:tint="@color/colorPrimary"
android:gravity="bottom|right">
</item>
</layer-list>
</item>
日志：
2021-11-19 16:29:49.249 22334-22334/hu.fherp.application D/AndroidRuntime: Shutting down VM
--------- beginning of crash
2021-11-19 16:29:49.254 22334-22334/hu.fherp.application E/AndroidRuntime: FATAL EXCEPTION: main
Process: hu.fherp.application, PID: 22334
java.lang.RuntimeException: Unable to start activity ComponentInfo{hu.fherp.application/hu.fherp.application.SettingsActivity}: android.view.InflateException: Binary XML file line #170 in hu.fherp.application:layout/activity_settings: Binary XML file line #170 in hu.fherp.application:layout/activity_settings: Error inflating class Spinner
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:3792)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:3968)
at android.app.servertransaction.LaunchActivityItem.execute(LaunchActivityItem.java:85)
at android.app.servertransaction.TransactionExecutor.executeCallbacks(TransactionExecutor.java:135)
at android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:95)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2307)
at android.os.Handler.dispatchMessage(Handler.java:106)
at android.os.Looper.loop(Looper.java:246)
at android.app.ActivityThread.main(ActivityThread.java:8512)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:602)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1139)
Caused by: android.view.InflateException: Binary XML file line #170 in hu.fherp.application:layout/activity_settings: Binary XML file line #170 in hu.fherp.application:layout/activity_settings: Error inflating class Spinner
Caused by: android.view.InflateException: Binary XML file line #170 in hu.fherp.application:layout/activity_settings: Error inflating class Spinner
Caused by: android.content.res.Resources$NotFoundException: Drawable hu.fherp.application:drawable/gradient_spinner with resource ID #0x7f07006a
Caused by: android.content.res.Resources$NotFoundException: File res/drawable/gradient_spinner.xml from drawable resource ID #0x7f07006a
at android.content.res.ResourcesImpl.loadDrawableForCookie(ResourcesImpl.java:1104)
at android.content.res.ResourcesImpl.loadDrawable(ResourcesImpl.java:795)
at android.content.res.Resources.loadDrawable(Resources.java:1098)
at android.content.res.TypedArray.getDrawableForDensity(TypedArray.java:1006)
at android.content.res.TypedArray.getDrawable(TypedArray.java:981)
at android.view.View.<init>(View.java:5954)
at android.view.ViewGroup.<init>(ViewGroup.java:715)
at android.widget.AdapterView.<init>(AdapterView.java:305)
at android.widget.AbsSpinner.<init>(AbsSpinner.java:74)
at android.widget.Spinner.<init>(Spinner.java:258)
at android.widget.Spinner.<init>(Spinner.java:225)
at android.widget.Spinner.<init>(Spinner.java:175)
at androidx.appcompat.widget.AppCompatSpinner.<init>(AppCompatSpinner.java:209)
at androidx.appcompat.widget.AppCompatSpinner.<init>(AppCompatSpinner.java:180)
at androidx.appcompat.widget.AppCompatSpinner.<init>(AppCompatSpinner.java:160)
at androidx.appcompat.widget.AppCompatSpinner.<init>(AppCompatSpinner.java:144)
at androidx.appcompat.app.AppCompatViewInflater.createSpinner(AppCompatViewInflater.java:214)
at androidx.appcompat.app.AppCompatViewInflater.createView(AppCompatViewInflater.java:131)
at androidx.appcompat.app.AppCompatDelegateImpl.createView(AppCompatDelegateImpl.java:1563)
at androidx.appcompat.app.AppCompatDelegateImpl.onCreateView(AppCompatDelegateImpl.java:1614)
at android.view.LayoutInflater.tryCreateView(LayoutInflater.java:1059)
at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:995)
at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:959)
at android.view.LayoutInflater.rInflate(LayoutInflater.java:1121)
at android.view.LayoutInflater.rInflateChildren(LayoutInflater.java:1082)
at android.view.LayoutInflater.rInflate(LayoutInflater.java:1124)
at android.view.LayoutInflater.rInflateChildren(LayoutInflater.java:1082)
at android.view.LayoutInflater.rInflate(LayoutInflater.java:1124)
2021-11-19 16:29:49.259 22334-22334/hu.fherp.application E/AndroidRuntime: at android.view.LayoutInflater.rInflateChildren(LayoutInflater.java:1082)
at android.view.LayoutInflater.rInflate(LayoutInflater.java:1124)
at android.view.LayoutInflater.rInflateChildren(LayoutInflater.java:1082)
at android.view.LayoutInflater.rInflate(LayoutInflater.java:1124)
at android.view.LayoutInflater.rInflateChildren(LayoutInflater.java:1082)
at android.view.LayoutInflater.inflate(LayoutInflater.java:680)
at android.view.LayoutInflater.inflate(LayoutInflater.java:532)
at android.view.LayoutInflater.inflate(LayoutInflater.java:479)
at androidx.appcompat.app.AppCompatDelegateImpl.setContentView(AppCompatDelegateImpl.java:699)
at androidx.appcompat.app.AppCompatActivity.setContentView(AppCompatActivity.java:195)
at hu.fherp.application.SettingsActivity.onCreate(SettingsActivity.kt:21)
at android.app.Activity.performCreate(Activity.java:8198)
at android.app.Activity.performCreate(Activity.java:8182)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1309)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:3765)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:3968)
at android.app.servertransaction.LaunchActivityItem.execute(LaunchActivityItem.java:85)
at android.app.servertransaction.TransactionExecutor.executeCallbacks(TransactionExecutor.java:135)
at android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:95)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2307)
at android.os.Handler.dispatchMessage(Handler.java:106)
at android.os.Looper.loop(Looper.java:246)
at android.app.ActivityThread.main(ActivityThread.java:8512)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:602)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1139)
Caused by: org.xmlpull.v1.XmlPullParserException: Binary XML file line #17: <bitmap> requires a valid 'src' attribute
at android.graphics.drawable.BitmapDrawable.updateStateFromTypedArray(BitmapDrawable.java:854)
at android.graphics.drawable.BitmapDrawable.inflate(BitmapDrawable.java:775)
at android.graphics.drawable.DrawableInflater.inflateFromXmlForDensity(DrawableInflater.java:148)
at android.graphics.drawable.Drawable.createFromXmlInnerForDensity(Drawable.java:1429)
at android.graphics.drawable.Drawable.createFromXmlInner(Drawable.java:1418)
at android.graphics.drawable.LayerDrawable.inflateLayers(LayerDrawable.java:284)
at android.graphics.drawable.LayerDrawable.inflate(LayerDrawable.java:199)
at android.graphics.drawable.DrawableInflater.inflateFromXmlForDensity(DrawableInflater.java:148)
at android.graphics.drawable.Drawable.createFromXmlInnerForDensity(Drawable.java:1429)
at android.graphics.drawable.Drawable.createFromXmlInner(Drawable.java:1418)
at android.graphics.drawable.StateListDrawable.inflateChildElements(StateListDrawable.java:199)
at android.graphics.drawable.StateListDrawable.inflate(StateListDrawable.java:126)
at android.graphics.drawable.DrawableInflater.inflateFromXmlForDensity(DrawableInflater.java:148)
at android.graphics.drawable.Drawable.createFromXmlInnerForDensity(Drawable.java:1429)
at android.graphics.drawable.Drawable.createFromXmlForDensity(Drawable.java:1388)
at android.content.res.ResourcesImpl.loadXmlDrawable(ResourcesImpl.java:1167)
at android.content.res.ResourcesImpl.loadDrawableForCookie(ResourcesImpl.java:1064)
... 53 more
任何的想法？
uj5u.com熱心網友回復：
Caused by: android.view.InflateException: Binary XML file line #170 in
hu.fherp.application:layout/activity_settings: Binary XML file line #170 in
hu.fherp.application:layout/activity_settings: Error inflating class Spinner
...
Caused by: android.content.res.Resources$NotFoundException:
File res/drawable/gradient_spinner.xml from drawable resource ID #0x7f07006a
Caused by: org.xmlpull.v1.XmlPullParserException: Binary XML file line #17:
<bitmap> requires a valid 'src' attribute
我猜這是兩個不同的錯誤。
一個<bitmap>資源具有指向一個位圖影像，也就是為.jpg，gif或png格式。你不能使用矢量 drawable 作為它的src，那些不是位圖。
如果要改用矢量可繪制物件，則需要使用android:drawable代替android:src. 您還layer-list需要成為 drawable 的父元素：
<?xml version="1.0" encoding="utf-8"?>
<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
<item>
<shape android:shape="rectangle">
<stroke android:width="1dp" android:color="#727c82" />
<corners android:radius="5dp" />
<padding android:bottom="3dp" android:left="3dp" android:right="3dp" android:top="3dp" />
</shape>
</item>
<item
android:drawable="@drawable/ic_expand_more_black_24dp"
android:tint="@color/colorPrimary"
android:gravity="bottom|right">
</item>
</layer-list>
我不知道這是否會解決未找到的崩潰gradient_spinner.xml，您發布的代碼不應該編譯，所以很難知道，但這至少應該給您一些東西看看
轉載請註明出處，本文鏈接：https://www.uj5u.com/qiye/361494.html