我在实现对话框中的数据绑定时遇到问题。有可能吗?
下面是我的xml。
<data>
<variable
name="olaBooking"
type="com.example.myapp.viewmodels.ViewModel" />
</data>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent">
<android.support.v7.widget.CardView
android:id="@+id/cv"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_margin="15dp"
android:elevation="4dp"
android:padding="15dp">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical">
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="@color/colorPrimary"
android:gravity="center"
android:padding="15dp"
android:text="OLA Cab Booked !"
android:textAppearance="@style/TextAppearance.AppCompat.Body1" />
<View
android:layout_width="match_parent"
android:layout_height="2dp"
android:background="@color/colorPrimaryDark" />
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:gravity="start|center"
android:padding="15dp"
android:text="Car Details" />
<View
android:layout_width="match_parent"
android:layout_height="2dp"
android:background="@color/colorPrimaryDark" />
<TextView
android:id="@+id/driverName"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:padding="5dp"
android:text="@{olaBooking.driverName}" />
<TextView
android:id="@+id/carModel"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:padding="5dp"
android:text="@{olaBooking.getCarName}" />
<TextView
android:id="@+id/carNo"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:padding="5dp"
android:text="@{olaBooking.getCabNo}" />
<TextView
android:id="@+id/eta"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:padding="5dp"
android:text="@{olaBooking.getEta}" />
</LinearLayout>
</android.support.v7.widget.CardView>
</LinearLayout>
我想把上面的布局绑定到一个对话框中。这怎么可能呢?下面是我尝试过的java代码,但它不起作用
dialog.setContentView(R.layout.dialog_ola_booking_confirmed);
DialogOlaBookingConfirmedBinding binding = DataBindingUtil.inflate(
LayoutInflater.from(dialog.getContext()),
R.layout.dialog_ola_booking_confirmed,
(ViewGroup) dialog.findViewById(R.id.cv),
false);
ViewModel viewModel = new ViewModel(this, event.olaBooking);
发布于 2016-04-15 23:33:13
可以在对话框中使用数据绑定,首先要让绑定在对话框上工作,你应该先膨胀它,然后将它传递给setContentView,如下所示。
DialogOlaBookingConfirmedBinding binding = DataBindingUtil.inflate(LayoutInflater.from(getContext()), R.layout. dialog_ola_booking_confirmed, null, false);
setContentView(binding.getRoot());
然后,您可以传递viewModel:
binding.setViewModel(new ViewModel(this, event.olaBooking));
现在你可以看到它是如何工作的。
发布于 2016-07-26 16:38:36
下面是一个使用数据绑定的AlertDialog的完整示例:
import android.app.Dialog;
import android.databinding.DataBindingUtil;
import android.os.Bundle;
import android.support.annotation.NonNull;
import android.support.annotation.Nullable;
import android.support.v4.app.DialogFragment;
import android.support.v4.app.FragmentActivity;
import android.support.v7.app.AlertDialog;
import android.view.LayoutInflater;
public class MyDialog extends DialogFragment {
private static final String KEY_MY_INFO = "KEY_MY_INFO";
private String myInfo;
public static MyDialog newInstance(String myInfo) {
MyDialog dialog = new MyDialog();
Bundle bundle = new Bundle();
bundle.putString(KEY_MY_INFO, myInfo);
dialog.setArguments(bundle);
return dialog;
}
@Override
public void onCreate(@Nullable Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
myInfo = getArguments().getString(KEY_MY_INFO);
}
@NonNull
@Override
public Dialog onCreateDialog(Bundle savedInstanceState) {
FragmentActivity activity = getActivity();
MyInfoBinding binding = DataBindingUtil.inflate(LayoutInflater.from(getContext()),
R.layout.my_info_dialog_layout, null, false);
binding.setMyInfo(myInfo);
return new AlertDialog.Builder(activity, R.style.AppCompatAlertDialogStyle)
.setView(binding.getRoot())
.create();
}
}
发布于 2017-04-05 19:15:15
您可以在不调用getRoot()的情况下执行相同的操作。
View view = LayoutInflater.from(getContext()).inflate(R.layout.dialog_delete_confirmation, null, false);
mBinding = DialogDeleteConfirmationBinding.bind(view);
mBinding.setViewModel(viewModel);
builder.setView(view);
builder.create();
https://stackoverflow.com/questions/34967868
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