如何在第一个对话框上调用 removeView() 以显示第 2 个对话框

Question

我正在使用一个涉及对话框的应用程序，这些对话框应该一个接一个地出现。我的意思是，当我单击第一个对话框的肯定按钮时，它应该会弹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，它会导致应用程序崩溃。

我收到一条错误消息 "java.lang.IllegalStateException: The specified child already has a parent. You must call removeView() on the child's parent first."

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

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。我在这个 post 中包含了 xml 因为我在某处读到文本框的高度和宽度的定义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>

Answer 1

调用前

CallClassification.showBusinessCallPopup(context, call);

你需要打电话给

dialog.dismiss();

在同一个 onClick() 中。

希望这能解决您的问题。

Answer 2

听了你的经历，我又想到了一个解决办法。不要在每个方法中声明 AlertDialog 变量，而是声明一个全局变量，这样您就可以确保在任何实例中只显示一个对话框。

声明时，使

AlertDialog dialog = null;

在class 然后，

    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;
}
}

然后再次在 showBusinessCallPopup() 中，

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

希望对您有所帮助。

Answer 3

在您的第二个代码中，您添加了两次视图，也许您应该删除其中一个。

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

:)

如何在第一个对话框上调用 removeView() 以显示第 2 个对话框

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