您好，一旦我展示了RecyclerView，无论如何，我都会遵循Stack Overflow和YouTube中的所有教程，然后我需要毫无问题地完成其他事情。无论如何，我唯一的问题是正按钮和负按钮消失了。我认为问题可能是我在XML中所做的事情与视图中的按钮重叠，但是RecyclerView中只有3个项目，所以这是我的最大疑问。我在onLongClick中创建了对话框，然后添加了RecyclerView方法来获取行中的位置和数据，这就是为什么我不能在另一个地方调用alertDialog.setPositiveButton（）的原因。要获得一些帮助，这是一个很大的挑战。
这是我的XML
<androidx.core.widget.NestedScrollView xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<TextView
android:id="@+id/text_adm_asigna_asesor"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center_horizontal"
android:layout_marginTop="10dp"
android:fontFamily="@font/poppins_bold"
android:text="Asigna un asesor"
android:textColor="@android:color/black"
android:textSize="18sp"
android:textStyle="bold" />
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<androidx.recyclerview.widget.RecyclerView
android:id="@+id/list"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_marginLeft="30dp"
android:visibility="visible"
android:layout_marginRight="30dp" />
<LinearLayout
android:id="@+id/linear_dialog_testDrive"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="horizontal"
android:visibility="gone"
>
<de.hdodenhof.circleimageview.CircleImageView
android:id="@+id/circle_imagen_seleccion_alert"
android:layout_width="70dp"
android:layout_height="70dp"
android:visibility="gone"
android:src="@drawable/lifeon_logo"
android:layout_marginLeft="40dp">
</de.hdodenhof.circleimageview.CircleImageView>
<TextView
android:id="@+id/alert_cambia_test_drive_nombre"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:fontFamily="@font/poppins_bold"
android:textColor="@android:color/black"
android:text="@string/nombre"
android:visibility="gone"
android:layout_marginLeft="30dp">
</TextView>
</LinearLayout>
<Button
android:id="@+id/cambiar_seleccion_alert_test_drive"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:padding="10dp"
android:background="@drawable/button_shape"
android:text="@string/cambiar_seleccion"
android:layout_gravity="center_horizontal"
android:visibility="gone"
>
</Button>
</LinearLayout>
</LinearLayout>
</androidx.core.widget.NestedScrollView>
这是Java代码
recyclerView.addOnItemTouchListener(new RecyclerTouchListener(getActivity(), recyclerView, new RecyclerTouchListener.ClickListener() {
@Override
public void onClick(View view, int position) {
}
@Override
public void onLongClick(View view, int position) {
asesores.clear();
ParseObject itemTestDrive = listadoTestDrive.get(position);
testDriveObjectId = itemTestDrive.getObjectId();
LayoutInflater inflater = getLayoutInflater();
View convertView = LayoutInflater.from(getApplicationContext()).inflate(R.layout.activity_agreements, null);
alertDialog.setView(convertView);
RecyclerView list = convertView.findViewById(R.id.list);
TextView txt = convertView.findViewById(R.id.text_adm_asigna_asesor);
CircleImageView ima=convertView.findViewById(R.id.circle_imagen_seleccion_alert);
TextView txtNombreSeleccion=convertView.findViewById(R.id.alert_cambia_test_drive_nombre);
Button botonCambiarSeleccion=convertView.findViewById(R.id.cambiar_seleccion_alert_test_drive);
LinearLayout linearLayout=convertView.findViewById(R.id.linear_dialog_testDrive);
botonCambiarSeleccion.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
list.setVisibility(View.VISIBLE);
ima.setVisibility(View.GONE);
txtNombreSeleccion.setVisibility(View.GONE);
botonCambiarSeleccion.setVisibility(View.GONE);
linearLayout.setVisibility(View.GONE);
}
});
ParseQuery<ParseObject> query1 = ParseQuery.getQuery("CitaTestDrive");
query1.include("ComercialAsignado");
query1.getInBackground(testDriveObjectId, new GetCallback<ParseObject>() {
@Override
public void done(ParseObject object, ParseException e) {
if (object.getParseObject("ComercialAsignado") != null) {
txt.setText(getActivity().getResources().getString(R.string.Advertencia_asignacion_a_alguien));
}
}
});
ParseUser user = ParseUser.getCurrentUser();
ParseObject sucursal = user.getParseObject("PerteneceSucursal");
String sucurObjectId = sucursal.getObjectId();
ParseQuery<ParseUser> query = ParseUser.getQuery();
ParseObject suc = ParseObject.createWithoutData("Sucursal", sucurObjectId);
query.whereEqualTo("PerteneceSucursal", suc);
query.include("PerteneceSucursal");
query.whereEqualTo("Rol","Asesor");
query.findInBackground(new FindCallback<ParseUser>() {
@Override
public void done(List<ParseUser> objects, ParseException e) {
if (e == null) {
for (ParseUser obj : objects) {
asesores.add(obj);
}
list.setLayoutManager(new LinearLayoutManager(getApplicationContext()));
list.setHasFixedSize(true);
ListAsesorAdminAsignaTestDrive adapter = new ListAsesorAdminAsignaTestDrive(getApplicationContext(), asesores);
list.setAdapter(adapter);
}
}
});
list.addOnItemTouchListener(new RecyclerTouchListener(getActivity(), list, new RecyclerTouchListener.ClickListener() {
@Override
public void onClick(View view, int position) {
ParseUser item = asesores.get(position);
list.setVisibility(view.GONE);
ima.setVisibility(view.VISIBLE);
txtNombreSeleccion.setVisibility(view.VISIBLE);
botonCambiarSeleccion.setVisibility(View.VISIBLE);
linearLayout.setVisibility(View.VISIBLE);
ParseFile parseFile = item.getParseFile("Avatar");
if (parseFile != null) {
parseFile.getDataInBackground(new GetDataCallback() {
@Override
public void done(byte[] data, ParseException e) {
if (e == null) {
Bitmap bmp = BitmapFactory.decodeByteArray(data, 0, data.length);
if (bmp != null) {
ima.setImageBitmap(bmp);
}
}
}
});
}
String asesorObjectId = item.getObjectId();
String asesorNombre = item.getString("Nombre");
txtNombreSeleccion.setText(asesorNombre);
alertDialog.setPositiveButton(getApplicationContext().getResources().getString(R.string.guardar), new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
ParseQuery<ParseObject> query = ParseQuery.getQuery("CitaTestDrive");
query.getInBackground(testDriveObjectId, new GetCallback<ParseObject>() {
@Override
public void done(ParseObject object, ParseException e) {
object.put("ComercialAsignado", ParseObject.createWithoutData("_User", asesorObjectId));
object.put("PendienteAsignacionAdmin", "Asignado");
object.saveInBackground(new SaveCallback() {
@Override
public void done(ParseException e) {
if (e == null) {
Toast.makeText(getApplicationContext(), "Test drive asignado a:" + asesorNombre, Toast.LENGTH_LONG).show();
} else {
Toast.makeText(getApplicationContext(), e.toString(), Toast.LENGTH_LONG).show();
}
}
});
}
});
adapter.notifyDataSetChanged();
}
});
alertDialog.setNegativeButton("Cancel", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
dialog.dismiss();
}
});
}
@Override
public void onLongClick(View view, int position) {
}
}));
list.setLayoutManager(new LinearLayoutManager(getApplicationContext()));
list.setHasFixedSize(true);
ListAsesorAdminAsignaTestDrive adapter = new ListAsesorAdminAsignaTestDrive(getApplicationContext(), asesores);
list.setAdapter(adapter);
alertDialog.show();
}
}));
如果您不知道正确的答案或解决方法，请不要回答。
更新： Android疯了！！。当我进行第一个onLongClick时，警报对话框仍然无法工作，因为我没有办法返回，所以我在警报对话框的外部单击它消失了然后我再点击一次，它就可以工作了！！！这很奇怪为什么会发生？？？？一切都没有改变。
I。声明对话框背景的自定义drawable.xml。
android:insetLeft="16dp"
android:insetTop="16dp"
android:insetRight="16dp"
android:insetBottom="16dp">
<shape android:shape="rectangle">
<corners android:radius="2dp" />
<solid android:color="@color/indigo" />
</shape>
II。在您的styles.xml文件中声明自定义样式。
<!--buttons color-->
<item name="colorAccent">@color/pink</item>
<!--title and message color-->
<item name="android:textColorPrimary">@android:color/white</item>
<!--dialog background-->
<item name="android:windowBackground">@drawable/drawable</item>
III。创建对话框并将样式用作AlertDialog.Builder中的参数。
AlertDialog.Builder builder =新的AlertDialog.Builder（this，R.style.MyDialogTheme）;
AlertDialog对话框= builder.create（）;
dialog.show（）;