Android 如何在DialogAlert中创建RecyclerView
我在DialogAlert中的RecyclerView有一些问题。我有如下自定义对话框警报： 我的第一个对话框Alert工作正常，因为它只显示一些编辑文本。但我有一些错误，当图像infodrawable左在编辑文本点击。它总是强制停止。我读书，但这不是工作。这是我的日志：Android 如何在DialogAlert中创建RecyclerView,android,android-recyclerview,android-alertdialog,Android,Android Recyclerview,Android Alertdialog,我在DialogAlert中的RecyclerView有一些问题。我有如下自定义对话框警报： 我的第一个对话框Alert工作正常，因为它只显示一些编辑文本。但我有一些错误，当图像infodrawable左在编辑文本点击。它总是强制停止。我读书，但这不是工作。这是我的日志： E/InputEventReceiver: Exception dispatching input event. E/MessageQueue-JNI: Exception in MessageQueue callback:
E/InputEventReceiver: Exception dispatching input event.
E/MessageQueue-JNI: Exception in MessageQueue callback: handleReceiveCallback
E/MessageQueue-JNI: java.lang.NullPointerException: Attempt to invoke virtual method 'void android.support.v7.widget.RecyclerView.setAdapter(android.support.v7.widget.RecyclerView$Adapter)' on a null object reference
at com.example.development_laptop.vhp_restotemp.TableActivityOnline$11.onTouch(TableActivityOnline.java:412)
at android.view.View.dispatchTouchEvent(View.java:9290)
at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2553)
at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2254)
at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2553)
at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2254)
at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2553)
at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2254)
at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2553)
at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2254)
at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2553)
at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2254)
at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2553)
at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2254)
at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2553)
at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2254)
at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2553)
at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2254)
at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2553)
at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2254)
at com.android.internal.policy.PhoneWindow$DecorView.superDispatchTouchEvent(PhoneWindow.java:2403)
at com.android.internal.policy.PhoneWindow.superDispatchTouchEvent(PhoneWindow.java:1737)
at android.app.Dialog.dispatchTouchEvent(Dialog.java:787)
at android.support.v7.view.WindowCallbackWrapper.dispatchTouchEvent(WindowCallbackWrapper.java:63)
at com.android.internal.policy.PhoneWindow$DecorView.dispatchTouchEvent(PhoneWindow.java:2364)
at android.view.View.dispatchPointerEvent(View.java:9514)
at android.view.ViewRootImpl$ViewPostImeInputStage.processPointerEvent(ViewRootImpl.java:4230)
at android.view.ViewRootImpl$ViewPostImeInputStage.onProcess(ViewRootImpl.java:4096)
at android.view.ViewRootImpl$InputStage.deliver(ViewRootImpl.java:3642)
at android.view.ViewRootImpl$InputStage.onDeliverToNext(ViewRootImpl.java:3695)
at android.view.ViewRootImpl$InputStage.forward(ViewRootImpl.java:3661)
at android.view.ViewRootImpl$AsyncInputStage.forward(ViewRootImpl.java:3787)
at android.view.ViewRootImpl$InputStage.apply(ViewRootImpl.java:3669)
at android.view.ViewRootImpl$AsyncInputStage.apply(ViewRootImpl.java:3844)
at android.view.ViewRootImpl$InputStage.deliver(ViewRootImpl.java:3642)
at android.view.ViewRootImpl$InputStage.onDeliverToNext(ViewRootImpl.java:3695)
at android.view.ViewRootImpl$InputStage.forward(ViewRootImpl.java:3661)
at android.view.ViewRootImpl$InputStage.apply(ViewRootImpl.java:3669)
at android.view.ViewRootImpl$InputStage.deliver(ViewRootImpl.java:3642)
at android.view.ViewRootImpl.deliverInputEvent(ViewRootImpl.java:5922)
at android.view.ViewRootImpl.doProcessInputEvents(ViewRootImpl.java:5896)
at android.view.ViewRootImpl.enqueueInputEvent(ViewRootImpl.java:5857)
at android.view.ViewRootImpl$WindowInputEventReceiver.onInputEvent(ViewRootImpl.java:6025)
at android.view.InputEventReceiver.dispatchInputEvent(InputEventReceiver.java:185)
at android.os.MessageQueue.nativePollOnce(Native Method)
at android.os.MessageQueue.next(MessageQueue.java:323)
at android.os.Looper.loop(Looper.java:135)
at android.app.ActivityThread.main(ActivityThread.java:5417)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616)
D/AndroidRuntime: Shutting down VM
E/AndroidRuntime: FATAL EXCEPTION: main
Process: com.example.development_laptop.vhp_restotemp, PID: 4011
java.lang.NullPointerException: Attempt to invoke virtual method 'void android.support.v7.widget.RecyclerView.setAdapter(android.support.v7.widget.RecyclerView$Adapter)' on a null object reference
at com.example.development_laptop.vhp_restotemp.TableActivityOnline$11.onTouch(TableActivityOnline.java:412)
at android.view.View.dispatchTouchEvent(View.java:9290)
at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2553)
at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2254)
at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2553)
at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2254)
at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2553)
at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2254)
at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2553)
at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2254)
at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2553)
at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2254)
at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2553)
at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2254)
at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2553)
at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2254)
at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2553)
at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2254)
at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2553)
at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2254)
at com.android.internal.policy.PhoneWindow$DecorView.superDispatchTouchEvent(PhoneWindow.java:2403)
at com.android.internal.policy.PhoneWindow.superDispatchTouchEvent(PhoneWindow.java:1737)
at android.app.Dialog.dispatchTouchEvent(Dialog.java:787)
at android.support.v7.view.WindowCallbackWrapper.dispatchTouchEvent(WindowCallbackWrapper.java:63)
at com.android.internal.policy.PhoneWindow$DecorView.dispatchTouchEvent(PhoneWindow.java:2364)
at android.view.View.dispatchPointerEvent(View.java:9514)
at android.view.ViewRootImpl$ViewPostImeInputStage.processPointerEvent(ViewRootImpl.java:4230)
at android.view.ViewRootImpl$ViewPostImeInputStage.onProcess(ViewRootImpl.java:4096)
at android.view.ViewRootImpl$InputStage.deliver(ViewRootImpl.java:3642)
at android.view.ViewRootImpl$InputStage.onDeliverToNext(ViewRootImpl.java:3695)
at android.view.ViewRootImpl$InputStage.forward(ViewRootImpl.java:3661)
at android.view.ViewRootImpl$AsyncInputStage.forward(ViewRootImpl.java:3787)
at android.view.ViewRootImpl$InputStage.apply(ViewRootImpl.java:3669)
at android.view.ViewRootImpl$AsyncInputStage.apply(ViewRootImpl.java:3844)
at android.view.ViewRootImpl$InputStage.deliver(ViewRootImpl.java:3642)
at android.view.ViewRootImpl$InputStage.onDeliverToNext(ViewRootImpl.java:3695)
at android.view.ViewRootImpl$InputStage.forward(ViewRootImpl.java:3661)
at android.view.ViewRootImpl$InputStage.apply(ViewRootImpl.java:3669)
at android.view.ViewRootImpl$InputStage.deliver(ViewRootImpl.java:3642)
at android.view.ViewRootImpl.deliverInputEvent(ViewRootImpl.java:5922)
at android.view.ViewRootImpl.doProcessInputEvents(ViewRootImpl.java:5896)
at android.view.ViewRootImpl.enqueueInputEvent(ViewRootImpl.java:5857)
at android.view.ViewRootImpl$WindowInputEventReceiver.onInputEvent(ViewRootImpl.java:6025)
at android.view.InputEventReceiver.dispatchInputEvent(InputEventReceiver.java:185)
at android.os.MessageQueue.nativePollOnce(Native Method)
at android.os.MessageQueue.next(MessageQueue.java:323)
at android.os.Looper.loop(Looper.java:135)
at android.app.ActivityThread.main(ActivityThread.java:5417)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726)
at com.android.internal.os.ZygoteInit.mai
public void openTableActivityDialog() {
AlertDialog.Builder dialogBuilder = new AlertDialog.Builder(this);
LayoutInflater inflater = this.getLayoutInflater();
final View dialogView = inflater.inflate(R.layout.open_table_activity, null);
dialogBuilder.setView(dialogView);
final EditText edt_guestName_OpenActivity = (EditText) dialogView.findViewById(R.id.edt_guestname_openActivity);
final EditText edt_pax_OpenActivity = (EditText) dialogView.findViewById(R.id.edt_pax_openActivity);
final EditText edt_room_OpenActivity = (EditText) dialogView.findViewById(R.id.edt_room_openActivity);
edt_room_OpenActivity.setOnTouchListener(new View.OnTouchListener() {
@Override
public boolean onTouch(View v, MotionEvent event) {
final int DRAWABLE_RIGHT = 2;
if(event.getAction() == MotionEvent.ACTION_UP) {
if(event.getRawX() >= (edt_room_OpenActivity.getRight() - edt_room_OpenActivity.
getCompoundDrawables()[DRAWABLE_RIGHT].getBounds().width())) {
AlertDialog.Builder dialogBuilderRoomList = new AlertDialog.Builder(TableActivityOnline.this);
LayoutInflater inflater = TableActivityOnline.this.getLayoutInflater();
final View dialogView = inflater.inflate(R.layout.guestname_list_activity, null);
dialogBuilderRoomList.setView(dialogView);
filteredGuestRoomList = new JSONArray();
final GenericAdapter adapterGuestNameList;
final RecyclerView recyclerViewGuestNameList = (RecyclerView) dialogView.findViewById(R.id.recyclerViewGuestNameList);
final LinearLayoutManager mLinearLayoutManager = new LinearLayoutManager(TableActivityOnline.this);
recyclerViewGuestNameList.setLayoutManager(mLinearLayoutManager);
loadGuestRoom();
adapterGuestNameList = new GenericAdapter(recyclerViewGuestNameList);
recyclerViewGuestNameList.setAdapter(adapterGuestNameList);
adapterGuestNameList.setOnRecyclerViewListener(new GenericAdapter.OnRecyclerViewListener() {
@Override
public void OnRecyclerViewItemClicked(RecyclerView recyclerView, int position) {
}
@Override
public void OnRecyclerViewItemBind(RecyclerView recyclerView, GenericAdapter.GenericHolder view, int position) {
try {
JSONObject currGuestNameList = filteredGuestRoomList.getJSONObject(position);
view.txtArticlesName.setText(currGuestNameList.getString("name"));
view.txtArticlesName.setTextSize(15);
view.txtArticlesName.setTextColor(Color.BLUE);
view.txtArticlesPrice.setText(currGuestNameList.getString("zinr"));
view.txtArticlesPrice.setTextSize(15);
view.txtArticlesPrice.setTextColor(Color.BLUE);
view.itemView.setBackgroundResource(R.color.colorWhite);
} catch (JSONException e) {
e.printStackTrace();
}
}
@Override
public int OnRecyclerViewItemCount(RecyclerView recyclerView) {
return filteredGuestRoomList.length();
}
});
dialogBuilderRoomList.setNegativeButton("", new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int whichButton) {
}
});
AlertDialog alertDialog = dialogBuilderRoomList.create();
alertDialog.show();
return true;
}
}
return false;
}
});
checkingOpenTable();
try {
dialogBuilder.setTitle("Table " + currTable.getString("tischnr"));
} catch (JSONException e) {
e.printStackTrace();
}
dialogBuilder.setPositiveButton("Confirm Table", new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int whichButton) {
}
});
dialogBuilder.setNegativeButton("", new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int whichButton) {
}
});
AlertDialog alertDialog = dialogBuilder.create();
alertDialog.show();
}
我试图在public类中声明RecyclerView，但仍然得到相同的错误。任何回答都会对我有帮助。谢谢您的RecyclerView位于R.layout.guestname\u list\u活动（即dialogView）膨胀的视图中，因此您的初始化应该是
final RecyclerView recyclerViewGuestNameList = (RecyclerView) dialogView.findViewById(R.id.recyclerViewGuestNameList);
也就是说，对话框中的对话框并不是实现这一点的最佳方式。为什么不在第二个对话框中进行相对布局？在第二个alertdialog中，我想检索一些JSON数据，所以我需要LinearLayoutManager中的RecyclerView，但是遇到了这个错误。但是如何设置setLayoutManager？你是什么意思？您已经在代码的下一行设置了布局管理器。我的意思是我的适配器声明，我尝试了您的代码，并在空对象引用@akash93上将错误更改为我的适配器。该错误消息没有意义。。我的适配器是什么意思？。发布新错误的日志