在自定义 BaseAdapter 子类中使用 Butter Knife 导致“无法注入视图"错误 [英] Using Butter Knife in Custom BaseAdapter SubClass Results in "Unable to inject views" error
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问题描述
我正在尝试使用 Butter Knife 来简化自定义 BaseAdapter 类的创建.我正在按照这里的例子:http://jakewharton.github.io/butterknife/ 在另一个用途是简化列表适配器内的视图持有者模式."部分.不幸的是，每次为列表中的每个项目创建 ViewHolder 时，我都会收到无法注入视图"错误.
I'm attempting to use Butter Knife to simplify creation of a custom BaseAdapter class. I'm following the example here: http://jakewharton.github.io/butterknife/ under the "Another use is simplifying the view holder pattern inside of a list adapter." section. Unfortunately, I am getting an "Unable to inject views" error each time the ViewHolder is created for each item in the list.
这是我的代码:
public class ButterknifeCustomBaseAdapter extends BaseAdapter{
@Override
public int getCount() {
return arrayListNames.size();
}
@Override
public Name getItem(int iPosition) {
return arrayListNames.get(iPosition);
}
@Override
public long getItemId(int iID) {
return 0;
}
LayoutInflater inflater;
ArrayList<Name> arrayListNames = new ArrayList<Name>();
static Context context;
Activity activity;
public ButterknifeCustomBaseAdapter(Context context, ArrayList<Name> names, Activity activity) {
arrayListNames = names;
this.context = context;
inflater = LayoutInflater.from(this.context);
}
static class ViewHolder implements View.OnClickListener {
@InjectView(R.id.textViewFullName) TextView textViewFullName;
@InjectView(R.id.imageButtonDeleteName) TextView imageButtonDeleteName;
@OnClick(R.id.imageButtonDeleteName)
public void onClick(View view) {
((NameActivity)context).DeleteUser((Name)view.getTag());
}
public ViewHolder(View view) {
ButterKnife.inject(this, view);
}
}
@Override public View getView(int position, View convertView, ViewGroup parent) {
ViewHolder viewHolder;
if (convertView != null) {
viewHolder = (ViewHolder) convertView.getTag();
} else {
convertView = inflater.inflate(R.layout.item_name, parent, false);
viewHolder = new ViewHolder(convertView);
convertView.setTag(viewHolder);
}
viewHolder.textViewFullName.setText(((Name)getItem(position)).GetFullName());
L.l("ArrayAdapterName", ((Name)getItem(position)).GetID() + " inserted in list | position = " + position);
viewHolder.imageButtonDeleteName.setTag((Name)getItem(position));
return convertView;
}
}
错误发生在ButterKnife.Inject(this, view);"线.每次为我放入列表的每个项目创建视图持有者时，也会发生这种情况.有人知道如何使这项工作按应有的方式进行吗?
The error happens at the "ButterKnife.Inject(this, view);" line. It also happens each time the view holder is created for each item I am putting in the list. Does anybody know how to make this work the way it should?
回复杰克沃顿的评论首先，让我感谢您开发这个工具.与我刚开始时相比，它让 Android 开发变得更加有趣.
In reply to Jake Wharton's comment First, let me say thank you for developing this tool. It has made android development much more enjoyable than it was when I first started.
这是完整的堆栈跟踪:
05-04 07:29:01.991 2424-2424/com.murach.databasehomework E/AndroidRuntime﹕ FATAL EXCEPTION: main
java.lang.RuntimeException: Unable to inject views for com.murach.databasehomework.ButterknifeCustomBaseAdapter$ViewHolder@52700878
at butterknife.ButterKnife.inject(ButterKnife.java:221)
at butterknife.ButterKnife.inject(ButterKnife.java:184)
at com.murach.databasehomework.ButterknifeCustomBaseAdapter$ViewHolder.<init>(ButterknifeCustomBaseAdapter.java:59)
at com.murach.databasehomework.ButterknifeCustomBaseAdapter.getView(ButterknifeCustomBaseAdapter.java:70)
at android.widget.AbsListView.obtainView(AbsListView.java:2177)
at android.widget.ListView.makeAndAddView(ListView.java:1840)
at android.widget.ListView.fillDown(ListView.java:675)
at android.widget.ListView.fillFromTop(ListView.java:736)
at android.widget.ListView.layoutChildren(ListView.java:1655)
at android.widget.AbsListView.onLayout(AbsListView.java:2012)
at android.view.View.layout(View.java:14289)
at android.view.ViewGroup.layout(ViewGroup.java:4562)
at android.widget.RelativeLayout.onLayout(RelativeLayout.java:1076)
at android.view.View.layout(View.java:14289)
at android.view.ViewGroup.layout(ViewGroup.java:4562)
at android.widget.FrameLayout.onLayout(FrameLayout.java:448)
at android.view.View.layout(View.java:14289)
at android.view.ViewGroup.layout(ViewGroup.java:4562)
at com.android.internal.widget.ActionBarOverlayLayout.onLayout(ActionBarOverlayLayout.java:349)
at android.view.View.layout(View.java:14289)
at android.view.ViewGroup.layout(ViewGroup.java:4562)
at android.widget.FrameLayout.onLayout(FrameLayout.java:448)
at android.view.View.layout(View.java:14289)
at android.view.ViewGroup.layout(ViewGroup.java:4562)
at android.view.ViewRootImpl.performLayout(ViewRootImpl.java:1976)
at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:1730)
at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:1004)
at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:5481)
at android.view.Choreographer$CallbackRecord.run(Choreographer.java:749)
at android.view.Choreographer.doCallbacks(Choreographer.java:562)
at android.view.Choreographer.doFrame(Choreographer.java:532)
at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:735)
at android.os.Handler.handleCallback(Handler.java:730)
at android.os.Handler.dispatchMessage(Handler.java:92)
at android.os.Looper.loop(Looper.java:137)
at android.app.ActivityThread.main(ActivityThread.java:5103)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:525)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:737)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:553)
at dalvik.system.NativeStart.main(Native Method)
Caused by: java.lang.reflect.InvocationTargetException
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:525)
at butterknife.ButterKnife.inject(ButterKnife.java:216)
at butterknife.ButterKnife.inject(ButterKnife.java:184)
at com.murach.databasehomework.ButterknifeCustomBaseAdapter$ViewHolder.<init>(ButterknifeCustomBaseAdapter.java:59)
at com.murach.databasehomework.ButterknifeCustomBaseAdapter.getView(ButterknifeCustomBaseAdapter.java:70)
at android.widget.AbsListView.obtainView(AbsListView.java:2177)
at android.widget.ListView.makeAndAddView(ListView.java:1840)
at android.widget.ListView.fillDown(ListView.java:675)
at android.widget.ListView.fillFromTop(ListView.java:736)
at android.widget.ListView.layoutChildren(ListView.java:1655)
at android.widget.AbsListView.onLayout(AbsListView.java:2012)
at android.view.View.layout(View.java:14289)
at android.view.ViewGroup.layout(ViewGroup.java:4562)
at android.widget.RelativeLayout.onLayout(RelativeLayout.java:1076)
at android.view.View.layout(View.java:14289)
at android.view.ViewGroup.layout(ViewGroup.java:4562)
at android.widget.FrameLayout.onLayout(FrameLayout.java:448)
at android.view.View.layout(View.java:14289)
at android.view.ViewGroup.layout(ViewGroup.java:4562)
at com.android.internal.widget.ActionBarOverlayLayout.onLayout(ActionBarOverlayLayout.java:349)
at android.view.View.layout(View.java:14289)
at android.view.ViewGroup.layout(ViewGroup.java:4562)
at android.widget.FrameLayout.onLayout(FrameLayout.java:448)
at android.view.View.layout(View.java:14289)
at android.view.ViewGroup.layout(ViewGroup.java:4562)
at android.view.ViewRootImpl.performLayout(ViewRootImpl.java:1976)
at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:1730)
at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:1004)
at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:5481)
at android.view.Choreographer$CallbackRecord.run(Choreographer.java:749)
at android.view.Choreographer.doCallbacks(Choreographer.java:562)
at android.view.Choreographer.doFrame(Choreographer.java:532)
at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:735)
at android.os.Handler.handleCallback(Handler.java:730)
at android.os.Handler.dispatchMessage(Handler.java:92)
at android.os.Looper.loop(Looper.java:137)
at android.app.ActivityThread.main(ActivityThread.java:5103)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:525)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:737)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:553)
at dalvik.system.NativeStart.main(Native Method)
Caused by: java.lang.ClassCastException: android.widget.ImageButton cannot be cast to android.widget.TextView
at com.murach.databasehomework.ButterknifeCustomBaseAdapter$ViewHolder$$ViewInjector.inject(ButterknifeCustomBaseAdapter$ViewHolder$$ViewInjector.java:13)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:525)
at butterknife.ButterKnife.inject(ButterKnife.java:216)
at butterknife.ButterKnife.inject(ButterKnife.java:184)
at com.murach.databasehomework.ButterknifeCustomBaseAdapter$ViewHolder.<init>(ButterknifeCustomBaseAdapter.java:59)
at com.murach.databasehomework.ButterknifeCustomBaseAdapter.getView(ButterknifeCustomBaseAdapter.java:70)
at android.widget.AbsListView.obtainView(AbsListView.java:2177)
at android.widget.ListView.makeAndAddView(ListView.java:1840)
at android.widget.ListView.fillDown(ListView.java:675)
at android.widget.ListView.fillFromTop(ListView.java:736)
at android.widget.ListView.layoutChildren(ListView.java:1655)
at android.widget.AbsListView.onLayout(AbsListView.java:2012)
at android.view.View.layout(View.java:14289)
at android.view.ViewGroup.layout(ViewGroup.java:4562)
at android.widget.RelativeLayout.onLayout(RelativeLayout.java:1076)
at android.view.View.layout(View.java:14289)
at android.view.ViewGroup.layout(ViewGroup.java:4562)
at android.widget.FrameLayout.onLayout(FrameLayout.java:448)
at android.view.View.layout(View.java:14289)
at android.view.ViewGroup.layout(ViewGroup.java:4562)
at com.android.internal.widget.ActionBarOverlayLayout.onLayout(ActionBarOverlayLayout.java:349)
at android.view.View.layout(View.java:14289)
at android.view.ViewGroup.layout(ViewGroup.java:4562)
at android.widget.FrameLayout.onLayout(FrameLayout.java:448)
at android.view.View.layout(View.java:14289)
at android.view.ViewGroup.layout(ViewGroup.java:4562)
at android.view.ViewRootImpl.performLayout(ViewRootImpl.java:1976)
at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:1730)
at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:1004)
at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:5481)
at android.view.Choreographer$CallbackRecord.run(Choreographer.java:749)
at android.view.Choreographer.doCallbacks(Choreographer.java:562)
at android.view.Choreographer.doFrame(Choreographer.java:532)
at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:735)
at android.os.Handler.handleCallback(Handler.java:730)
at android.os.Handler.dispatchMessage(Handler.java:92)
at android.os.Looper.loop(Looper.java:137)
at android.app.ActivityThread.main(ActivityThread.java:5103)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:525)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:737)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:553)
at dalvik.system.NativeStart.main(Native Method)
推荐答案
检查您的 @InjectView 是否具有正确的类型.我使用了 ImageView 而不是 LinearLayout.这也可能是你的问题.
Check if your @InjectViews has correct type. I've used ImageView instead of LinearLayout. That might be your problem too.
更新:
确保您没有将 ButterKnife 的 @OnItemClick(R.id.non_list_view) 与非 ListView 一起使用.我将它用于 android.support.v7.widget.RecyclerView 导致以下异常:
Make sure you are not using ButterKnife's @OnItemClick(R.id.non_list_view) with a non ListView. I was using it for a android.support.v7.widget.RecyclerView which was causing following exception:
java.lang.RuntimeException: Unable to inject views for MyFragment{... id=.... android:switcher:...}
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