如何在第一个对话框上调用removeView（）以显示对话框编号2

Posted 2021-04-16

我正在使用一个应用程序，该应用程序涉及应该一个接一个出现的对话框。我的意思是，当我点击第一个对话框的正面按钮时，它应该调出另一个第二个对话框。我面临的问题是第二个对话框，第二个对话框不会弹出，导致应用程序崩溃。

我收到一条错误，上面写着“java.lang.IllegalStateException：指定的子节点已经有父节点。您必须首先在子节点的父节点上调用removeView（）。”

public static void showBusinessOrPrivateStartDialog(final Context context, final CallLogEntry call)
       {
          if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M)
          {
             // If new version of android, then check permission
             if (!Settings.canDrawOverlays(context))
             {
                Log.e(TAG, "Permission Denied: Draw overlays (for popup)");
                return;
             }
          }

          LayoutInflater inflater = (LayoutInflater)context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
          //View view = inflater.inflate(R.layout.dialog_call_type, null);

          AlertDialog.Builder builder = new AlertDialog.Builder(context, Theme_Material_Light_Dialog_Alert);

          builder.setTitle("Was this a private or a business call?");
          builder.setMessage("Please select a call type");
          builder.setIcon(R.drawable.ic_deviceinsight);
          builder.setCancelable(true);
          //builder.setView(view);

          builder.setOnCancelListener(new DialogInterface.OnCancelListener() {
             @Override
             public void onCancel(DialogInterface dialog) {
                // Occurs when user cancels the dialog, or clicks somewhere else in the screen or presses the back button
                Log.i(TAG, "cancelled");

                saveCallEntry(context, call, CLASSIFICATION_TYPE_BUSINESS, "", true, "");
             }
          });

          builder.setPositiveButton("Business", new DialogInterface.OnClickListener() {
             public void onClick(DialogInterface dialog, int which) {
                CallClassification.showBusinessCallPopup(context, call);
             }
          });
          builder.setNegativeButton("Private", new DialogInterface.OnClickListener() {
             public void onClick(DialogInterface dialog, int which) {
                saveCallEntry(context, call, CLASSIFICATION_TYPE_PRIVATE, "", false, "");
             }
          });

          AlertDialog dialog = builder.create();
          // Rather use something like TYPE_SYSTEM_ALERT, if possible.
          dialog.getWindow().setType(WindowManager.LayoutParams.TYPE_SYSTEM_ALERT); // TYPE_SYSTEM_ERROR
          dialog.show();
       }

这是第二个对话框的第二种方法，我的应用程序在dialog.show上崩溃

public static void showBusinessCallPopup(final Context context, final CallLogEntry call)
       {
          // NEW NRF
          if (AppPreferences.isNRF(context)) {
             CallItem callItem = saveCallEntry(context, call, CLASSIFICATION_TYPE_BUSINESS, "", false, "");

             // SHOW NEW FORM
             Intent intent = new Intent(context, CallClassificationFormActivity.class);
             intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
             EventBus.getDefault().postSticky(callItem);
             context.startActivity(intent);

             return;
          }

          if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M)
          {
             // If new version of android, then check permission
             if (!Settings.canDrawOverlays(context))
             {
                Log.e(TAG, "Permission Denied: Draw overlays (for popup)");
                return;
             }
          }

          LayoutInflater inflater = (LayoutInflater)context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
          View view = inflater.inflate(R.layout.dialog_call_details, null);

          AlertDialog.Builder builder = new AlertDialog.Builder(context, Theme_Material_Light_Dialog_Alert);

          String toOrFrom = call.Type == CallLog.Calls.INCOMING_TYPE ? "from" : "to";

          //builder.setTitle("Business call");
          builder.setCustomTitle(view);
          //builder.setMessage("Please enter reference details for the call " + toOrFrom + " " + call.Number);
          //builder.setIcon(R.drawable.ic_deviceinsight);
          builder.setCancelable(true);
          builder.setView(view);

          final EditText etReference = (EditText)view.findViewById(R.id.etReference);
          final EditText etComment = (EditText)view.findViewById(R.id.etComment);

          builder.setPositiveButton("Confirm", new DialogInterface.OnClickListener() {
             public void onClick(DialogInterface dialog, int which) {

                String reference = etReference.getText().toString();
                String comment = etComment.getText().toString();

                saveCallEntry(context, call, CLASSIFICATION_TYPE_BUSINESS, reference, false, comment);
             }
          });
          builder.setOnCancelListener(new DialogInterface.OnCancelListener() {
             @Override
             public void onCancel(DialogInterface dialog) {
                Log.i(TAG, "cancelled");
             }
          });

          AlertDialog dialog = builder.create();
          dialog.getWindow().setType(WindowManager.LayoutParams.TYPE_SYSTEM_ALERT); // TYPE_SYSTEM_ERROR
          dialog.show();
       }

这是我的xml。我在这篇文章中包含了xml，因为我在某处读到了定义文本框的高度和宽度的方式可能会导致问题。

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
              xmlns:app="http://schemas.android.com/apk/res-auto"
              xmlns:tools="http://schemas.android.com/tools"
              android:id="@+id/layout"
              android:layout_width="match_parent"
              android:layout_height="wrap_content"
              android:orientation="vertical"
              android:paddingLeft="5dp"
              android:paddingRight="5dp"
              android:paddingTop="5dp"
              tools:context=".calls.CallClassification">

  <TextView
         android:id="@+id/tvMessage"
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
         android:layout_marginBottom="5dp"
         android:padding="5dp"
         android:text="Please enter reference details for the call "
         android:textColor="@color/colorPrimaryDark"
         android:textSize="16sp"/>

   <AutoCompleteTextView
         android:id="@+id/etReference"
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
         android:backgroundTint="@color/colorAccent"
         android:hint="Matter Code *"
         android:imeOptions="actionNext"
         android:inputType="text"
         android:maxLength="255"
         android:text=""
         android:textColor="@color/colorPrimary"
         android:textColorHint="@color/colorTextHint"
         android:textSize="14sp"/>

   <CheckBox
         android:id="@+id/cbBillable"
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
         android:layout_marginLeft="5dp"
         android:layout_marginRight="5dp"
         android:button="@null"
         android:buttonTint="@color/colorAccent"
         android:checked="true"
         android:drawableRight="?android:attr/listChoiceIndicatorMultiple"
         android:paddingBottom="3dp"
         android:paddingTop="3dp"
         android:text="Billable"
         android:textColor="@color/colorPrimaryDark"
         android:textSize="14sp"/>

   <EditText
         android:id="@+id/etComment"
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
         android:backgroundTint="@color/colorAccent"
         android:hint="Enter comment"
         android:imeOptions="actionDone"
         android:inputType="text"
         android:lines="1"
         android:maxLength="1000"
         android:maxLines="4"
         android:minLines="1"
         android:text=""
         android:textColor="@color/colorPrimary"
         android:textColorHint="@color/colorTextHint"
         android:textSize="14sp"/>

   <LinearLayout
         android:layout_width="match_parent"
         android:layout_height="match_parent"
         android:orientation="horizontal">

      <Button
            android:id="@+id/bCancel"
            style="@style/Widget.AppCompat.Button.Borderless.Colored"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_weight="1"
            android:text="Cancel"/>

      <Button
            android:id="@+id/bOk"
            style="@style/Widget.AppCompat.Button.Borderless.Colored"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_weight="1"
            android:text="GO"/>
   </LinearLayout>


</LinearLayout>

答案

在听取了您的经验后，我想到了另一种解决方案。不是在每个方法中声明AlertDialog变量，而是声明一个全局变量，以便确保在任何实例中只显示一个Dialog。

在宣布时，制作

AlertDialog对话框= null;

在课堂上然后在，

    showBusinessOrPrivateStartDialog() {
    if(dialog == null) {
    dialog = build.create();
    }
    }


    builder.setPositiveButton("Business", new DialogInterface.OnClickListener() {
          public void onClick(DialogInterface dialog, int which) {
                    dialog.dismiss();
                    CallClassification.showBusinessCallPopup(context, call);
                 }
              });

builder.setOnDismissListener(new OnDismissListener() {
public void onDismiss() {
dialog = null;
}
}

然后再在showBusinessCallPopup（）中，

if(dialog == null) {
    dialog = build.create();
    }

希望这对你有所帮助。

另一答案

在打电话之前

CallClassification.showBusinessCallPopup（context，call）;

你需要打电话

dialog.dismiss（）;

在同一个onClick（）中。

希望这能解决你的问题。

另一答案

在第二个代码中，您要添加两次视图，也许您应该删除其中一个。

    builder.setCustomTitle(view); -> Here
    builder.setCancelable(true);
    builder.setView(view); --> Here

:)