android - 如何将填充添加到 ListView 的默认分隔符中？

Question

我只想向我的 ListView 分隔符添加左右填充，因为每一行在屏幕的最左侧应该有一个纯色，如果我向整个列表添加填充，这些颜色也会被填充。我知道我可以制作自己的分隔线，但我就是找不到默认分隔线的可绘制对象。

我试过像这样制作可绘制对象:

    <View xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:paddingLeft="16dp"
    android:paddingRight="16dp"
    android:background="?android:attr/listDivider" />

然后将其设为分隔线:

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="@drawable/background_pattern" >

<ListView
    android:id="@+id/status_list"
    android:layout_width="match_parent"
    android:layout_height="fill_parent"
    android:divider="@drawable/list_divider"
    android:headerDividersEnabled="false"
    android:footerDividersEnabled="false" >
</ListView>

但是 app force 以此结束:

02-20 18:02:15.374: E/AndroidRuntime(13457): FATAL EXCEPTION: main02-20 18:02:15.374: E/AndroidRuntime(13457): android.view.InflateException: Binary XML file line #7: Error inflating class android.widget.ListView02-20 18:02:15.374: E/AndroidRuntime(13457):    at android.view.LayoutInflater.createView(LayoutInflater.java:613)02-20 18:02:15.374: E/AndroidRuntime(13457):    at com.android.internal.policy.impl.PhoneLayoutInflater.onCreateView(PhoneLayoutInflater.java:56)02-20 18:02:15.374: E/AndroidRuntime(13457):    at android.view.LayoutInflater.onCreateView(LayoutInflater.java:660)02-20 18:02:15.374: E/AndroidRuntime(13457):    at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:685)02-20 18:02:15.374: E/AndroidRuntime(13457):    at android.view.LayoutInflater.rInflate(LayoutInflater.java:746)02-20 18:02:15.374: E/AndroidRuntime(13457):    at android.view.LayoutInflater.inflate(LayoutInflater.java:489)02-20 18:02:15.374: E/AndroidRuntime(13457):    at android.view.LayoutInflater.inflate(LayoutInflater.java:396)02-20 18:02:15.374: E/AndroidRuntime(13457):    at com.bitnation.tubeappy.StatusFragment.onCreateView(StatusFragment.java:79)02-20 18:02:15.374: E/AndroidRuntime(13457):    at android.support.v4.app.Fragment.performCreateView(Fragment.java:1460)02-20 18:02:15.374: E/AndroidRuntime(13457):    at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:911)02-20 18:02:15.374: E/AndroidRuntime(13457):    at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:1088)02-20 18:02:15.374: E/AndroidRuntime(13457):    at android.support.v4.app.BackStackRecord.run(BackStackRecord.java:682)02-20 18:02:15.374: E/AndroidRuntime(13457):    at android.support.v4.app.FragmentManagerImpl.execPendingActions(FragmentManager.java:1444)02-20 18:02:15.374: E/AndroidRuntime(13457):    at android.support.v4.app.FragmentManagerImpl.executePendingTransactions(FragmentManager.java:461)02-20 18:02:15.374: E/AndroidRuntime(13457):    at android.support.v4.app.FragmentPagerAdapter.finishUpdate(FragmentPagerAdapter.java:141)02-20 18:02:15.374: E/AndroidRuntime(13457):    at android.support.v4.view.ViewPager.populate(ViewPager.java:1012)02-20 18:02:15.374: E/AndroidRuntime(13457):    at android.support.v4.view.ViewPager.populate(ViewPager.java:881)02-20 18:02:15.374: E/AndroidRuntime(13457):    at android.support.v4.view.ViewPager.onMeasure(ViewPager.java:1366)02-20 18:02:15.374: E/AndroidRuntime(13457):    at android.view.View.measure(View.java:15518)02-20 18:02:15.374: E/AndroidRuntime(13457):    at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:4825)02-20 18:02:15.374: E/AndroidRuntime(13457):    at android.widget.FrameLayout.onMeasure(FrameLayout.java:310)02-20 18:02:15.374: E/AndroidRuntime(13457):    at android.view.View.measure(View.java:15518)02-20 18:02:15.374: E/AndroidRuntime(13457):    at android.widget.LinearLayout.measureVertical(LinearLayout.java:847)02-20 18:02:15.374: E/AndroidRuntime(13457):    at android.widget.LinearLayout.onMeasure(LinearLayout.java:588)02-20 18:02:15.374: E/AndroidRuntime(13457):    at android.view.View.measure(View.java:15518)02-20 18:02:15.374: E/AndroidRuntime(13457):    at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:4825)02-20 18:02:15.374: E/AndroidRuntime(13457):    at android.widget.FrameLayout.onMeasure(FrameLayout.java:310)02-20 18:02:15.374: E/AndroidRuntime(13457):    at com.android.internal.policy.impl.PhoneWindow$DecorView.onMeasure(PhoneWindow.java:2176)02-20 18:02:15.374: E/AndroidRuntime(13457):    at android.view.View.measure(View.java:15518)02-20 18:02:15.374: E/AndroidRuntime(13457):    at android.view.ViewRootImpl.performMeasure(ViewRootImpl.java:1874)02-20 18:02:15.374: E/AndroidRuntime(13457):    at android.view.ViewRootImpl.measureHierarchy(ViewRootImpl.java:1089)02-20 18:02:15.374: E/AndroidRuntime(13457):    at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:1265)02-20 18:02:15.374: E/AndroidRuntime(13457):    at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:989)02-20 18:02:15.374: E/AndroidRuntime(13457):    at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:4351)02-20 18:02:15.374: E/AndroidRuntime(13457):    at android.view.Choreographer$CallbackRecord.run(Choreographer.java:749)02-20 18:02:15.374: E/AndroidRuntime(13457):    at android.view.Choreographer.doCallbacks(Choreographer.java:562)02-20 18:02:15.374: E/AndroidRuntime(13457):    at android.view.Choreographer.doFrame(Choreographer.java:532)02-20 18:02:15.374: E/AndroidRuntime(13457):    at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:735)02-20 18:02:15.374: E/AndroidRuntime(13457):    at android.os.Handler.handleCallback(Handler.java:725)02-20 18:02:15.374: E/AndroidRuntime(13457):    at android.os.Handler.dispatchMessage(Handler.java:92)02-20 18:02:15.374: E/AndroidRuntime(13457):    at android.os.Looper.loop(Looper.java:137)02-20 18:02:15.374: E/AndroidRuntime(13457):    at android.app.ActivityThread.main(ActivityThread.java:5041)02-20 18:02:15.374: E/AndroidRuntime(13457):    at java.lang.reflect.Method.invokeNative(Native Method)02-20 18:02:15.374: E/AndroidRuntime(13457):    at java.lang.reflect.Method.invoke(Method.java:511)02-20 18:02:15.374: E/AndroidRuntime(13457):    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:793)02-20 18:02:15.374: E/AndroidRuntime(13457):    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:560)02-20 18:02:15.374: E/AndroidRuntime(13457):    at dalvik.system.NativeStart.main(Native Method)02-20 18:02:15.374: E/AndroidRuntime(13457): Caused by: java.lang.reflect.InvocationTargetException02-20 18:02:15.374: E/AndroidRuntime(13457):    at java.lang.reflect.Constructor.constructNative(Native Method)02-20 18:02:15.374: E/AndroidRuntime(13457):    at java.lang.reflect.Constructor.newInstance(Constructor.java:417)02-20 18:02:15.374: E/AndroidRuntime(13457):    at android.view.LayoutInflater.createView(LayoutInflater.java:587)02-20 18:02:15.374: E/AndroidRuntime(13457):    ... 46 more02-20 18:02:15.374: E/AndroidRuntime(13457): Caused by: android.content.res.Resources$NotFoundException: File res/drawable/list_divider.xml from drawable resource ID #0x7f02000702-20 18:02:15.374: E/AndroidRuntime(13457):    at android.content.res.Resources.loadDrawable(Resources.java:1953)02-20 18:02:15.374: E/AndroidRuntime(13457):    at android.content.res.TypedArray.getDrawable(TypedArray.java:601)02-20 18:02:15.374: E/AndroidRuntime(13457):    at android.widget.ListView.(ListView.java:155)02-20 18:02:15.374: E/AndroidRuntime(13457):    at android.widget.ListView.(ListView.java:139)02-20 18:02:15.374: E/AndroidRuntime(13457):    ... 49 more

Answer 1

这就是问题所在，android:divider 需要一个 @drawable 或 @color(请参阅 docs)，但您给出了它是保存在 @drawable 文件夹下的 @layout(这就是它编译的原因)，但在运行时崩溃。

android.content.res.Resources$NotFoundException: File res/drawable/list_divider.xml from drawable resource ID #0x7f020007

不幸的是，我认为没有任何好的方法可以引用默认的 android 可绘制列表分隔符 AND 同时覆盖其填充/边界。如果您获得了可绘制对象的源文件，则可以编辑 9.png 文件的可拉伸(stretch)/内容区域以调整其填充，但这相当乏味。

这是我找到的解决方法(并且工作正常):设置android:divider="@null"，然后添加分隔符View 到 row_layout.xml 的底部(用于绑定(bind)到 ListView)。基本上你会伪造分隔线，它会在每一行内而不是在它们之间，但对用户来说它看起来是一样的。然后，您将能够控制分隔符的填充与每一行的填充分开，这是您的目标。