我正在使用一个应用程序，该应用程序涉及应一个接一个出现的对话框。我的意思是，当我单击第一个对话框的肯定按钮时，它应该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:指定的子项已经有父项。您必须首先在子项的父项上调用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>
最佳答案
听了你的经历后，我可以想到另一个解决方案。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;
在类里面 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;
}
}
然后再次在 showBusinessCallPopup() 中，
if(dialog == null) {
dialog = build.create();
}
希望这对您有帮助。
关于java - 如何在第一个对话框上调用removeView()以显示第2个对话框，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/50464865/