mirror of
https://github.com/material-components/material-components-android.git
synced 2026-01-16 18:01:42 +08:00
438 lines
15 KiB
Java
438 lines
15 KiB
Java
/*
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* Copyright 2018 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.google.android.material.dialog;
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import com.google.android.material.R;
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import static com.google.android.material.internal.ThemeEnforcement.createThemedContext;
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import android.content.Context;
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import android.content.DialogInterface.OnCancelListener;
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import android.content.DialogInterface.OnClickListener;
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import android.content.DialogInterface.OnDismissListener;
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import android.content.DialogInterface.OnKeyListener;
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import android.content.DialogInterface.OnMultiChoiceClickListener;
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import android.content.res.ColorStateList;
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import android.content.res.Resources.Theme;
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import android.database.Cursor;
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import android.graphics.Rect;
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import android.graphics.drawable.Drawable;
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import android.os.Build;
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import android.os.Build.VERSION_CODES;
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import androidx.annotation.ArrayRes;
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import androidx.annotation.AttrRes;
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import androidx.annotation.Dimension;
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import androidx.annotation.DrawableRes;
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import androidx.annotation.NonNull;
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import androidx.annotation.Nullable;
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import androidx.annotation.Px;
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import androidx.annotation.StringRes;
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import androidx.annotation.StyleRes;
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import com.google.android.material.shape.MaterialShapeDrawable;
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import androidx.core.view.ViewCompat;
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import androidx.appcompat.app.AlertDialog;
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import androidx.appcompat.view.ContextThemeWrapper;
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import android.util.TypedValue;
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import android.view.View;
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import android.view.Window;
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import android.widget.AdapterView;
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import android.widget.ListAdapter;
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import com.google.android.material.color.MaterialColors;
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import com.google.android.material.resources.MaterialAttributes;
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/**
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* An extension of {@link AlertDialog.Builder} for use with a Material theme (e.g.,
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* Theme.MaterialComponents).
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*
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* <p>This Builder must be used in order for AlertDialog objects to respond to color and shape
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* theming provided by Material themes.
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*
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* <p>The type of dialog returned is still an {@link AlertDialog}; there is no specific Material
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* implementation of {@link AlertDialog}.
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*/
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public class MaterialAlertDialogBuilder extends AlertDialog.Builder {
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@AttrRes private static final int DEF_STYLE_ATTR = R.attr.alertDialogStyle;
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@StyleRes private static final int DEF_STYLE_RES = R.style.MaterialAlertDialog_MaterialComponents;
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@AttrRes
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private static final int MATERIAL_ALERT_DIALOG_THEME_OVERLAY = R.attr.materialAlertDialogTheme;
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@Nullable private Drawable background;
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@NonNull @Dimension private final Rect backgroundInsets;
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private static int getMaterialAlertDialogThemeOverlay(@NonNull Context context) {
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TypedValue materialAlertDialogThemeOverlay =
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MaterialAttributes.resolve(context, MATERIAL_ALERT_DIALOG_THEME_OVERLAY);
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if (materialAlertDialogThemeOverlay == null) {
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return 0;
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}
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return materialAlertDialogThemeOverlay.data;
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}
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private static Context createMaterialAlertDialogThemedContext(@NonNull Context context) {
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int themeOverlayId = getMaterialAlertDialogThemeOverlay(context);
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Context themedContext = createThemedContext(context, null, DEF_STYLE_ATTR, DEF_STYLE_RES);
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if (themeOverlayId == 0) {
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return themedContext;
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}
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return new ContextThemeWrapper(themedContext, themeOverlayId);
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}
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private static int getOverridingThemeResId(@NonNull Context context, int overrideThemeResId) {
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return overrideThemeResId == 0
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? getMaterialAlertDialogThemeOverlay(context)
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: overrideThemeResId;
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}
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public MaterialAlertDialogBuilder(Context context) {
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this(context, 0);
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}
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public MaterialAlertDialogBuilder(Context context, int overrideThemeResId) {
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// Only pass in 0 for overrideThemeResId if both overrideThemeResId and
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// MATERIAL_ALERT_DIALOG_THEME_OVERLAY are 0 otherwise alertDialogTheme will override both.
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super(
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createMaterialAlertDialogThemedContext(context),
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getOverridingThemeResId(context, overrideThemeResId));
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// Ensure we are using the correctly themed context rather than the context that was passed in.
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context = getContext();
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Theme theme = context.getTheme();
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backgroundInsets =
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MaterialDialogs.getDialogBackgroundInsets(context, DEF_STYLE_ATTR, DEF_STYLE_RES);
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int surfaceColor =
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MaterialColors.getColor(context, R.attr.colorSurface, getClass().getCanonicalName());
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MaterialShapeDrawable materialShapeDrawable =
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new MaterialShapeDrawable(context, null, DEF_STYLE_ATTR, DEF_STYLE_RES);
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materialShapeDrawable.initializeElevationOverlay(context);
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materialShapeDrawable.setFillColor(ColorStateList.valueOf(surfaceColor));
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// dialogCornerRadius first appeared in Android Pie
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if (Build.VERSION.SDK_INT >= VERSION_CODES.P) {
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TypedValue dialogCornerRadiusValue = new TypedValue();
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theme.resolveAttribute(android.R.attr.dialogCornerRadius, dialogCornerRadiusValue, true);
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float dialogCornerRadius =
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dialogCornerRadiusValue.getDimension(getContext().getResources().getDisplayMetrics());
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if (dialogCornerRadiusValue.type == TypedValue.TYPE_DIMENSION && dialogCornerRadius >= 0) {
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materialShapeDrawable.setCornerRadius(dialogCornerRadius);
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}
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}
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background = materialShapeDrawable;
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}
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@Override
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public AlertDialog create() {
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AlertDialog alertDialog = super.create();
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Window window = alertDialog.getWindow();
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/* {@link Window#getDecorView()} should be called before any changes are made to the Window
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* as it locks in attributes and affects layout. */
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View decorView = window.getDecorView();
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if (background instanceof MaterialShapeDrawable) {
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((MaterialShapeDrawable) background).setElevation(ViewCompat.getElevation(decorView));
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}
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Drawable insetDrawable = MaterialDialogs.insetDrawable(background, backgroundInsets);
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window.setBackgroundDrawable(insetDrawable);
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decorView.setOnTouchListener(new InsetDialogOnTouchListener(alertDialog, backgroundInsets));
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return alertDialog;
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}
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@Nullable
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public Drawable getBackground() {
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return background;
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}
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@NonNull
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public MaterialAlertDialogBuilder setBackground(Drawable background) {
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this.background = background;
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return this;
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}
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@NonNull
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public MaterialAlertDialogBuilder setBackgroundInsetStart(@Px int backgroundInsetStart) {
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if (Build.VERSION.SDK_INT >= VERSION_CODES.JELLY_BEAN_MR1
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&& getContext().getResources().getConfiguration().getLayoutDirection()
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== ViewCompat.LAYOUT_DIRECTION_RTL) {
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backgroundInsets.right = backgroundInsetStart;
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} else {
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backgroundInsets.left = backgroundInsetStart;
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}
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return this;
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}
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@NonNull
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public MaterialAlertDialogBuilder setBackgroundInsetTop(@Px int backgroundInsetTop) {
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backgroundInsets.top = backgroundInsetTop;
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return this;
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}
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@NonNull
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public MaterialAlertDialogBuilder setBackgroundInsetEnd(@Px int backgroundInsetEnd) {
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if (Build.VERSION.SDK_INT >= VERSION_CODES.JELLY_BEAN_MR1
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&& getContext().getResources().getConfiguration().getLayoutDirection()
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== ViewCompat.LAYOUT_DIRECTION_RTL) {
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backgroundInsets.left = backgroundInsetEnd;
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} else {
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backgroundInsets.right = backgroundInsetEnd;
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}
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return this;
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}
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@NonNull
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public MaterialAlertDialogBuilder setBackgroundInsetBottom(@Px int backgroundInsetBottom) {
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backgroundInsets.bottom = backgroundInsetBottom;
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return this;
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}
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// The following methods are all pass-through methods used to specify the return type for the
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// builder chain.
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@NonNull
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@Override
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public MaterialAlertDialogBuilder setTitle(@StringRes int titleId) {
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return (MaterialAlertDialogBuilder) super.setTitle(titleId);
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}
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@NonNull
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@Override
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public MaterialAlertDialogBuilder setTitle(@Nullable CharSequence title) {
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return (MaterialAlertDialogBuilder) super.setTitle(title);
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}
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@NonNull
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@Override
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public MaterialAlertDialogBuilder setCustomTitle(@Nullable View customTitleView) {
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return (MaterialAlertDialogBuilder) super.setCustomTitle(customTitleView);
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}
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@NonNull
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@Override
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public MaterialAlertDialogBuilder setMessage(@StringRes int messageId) {
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return (MaterialAlertDialogBuilder) super.setMessage(messageId);
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}
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@NonNull
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@Override
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public MaterialAlertDialogBuilder setMessage(@Nullable CharSequence message) {
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return (MaterialAlertDialogBuilder) super.setMessage(message);
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}
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@NonNull
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@Override
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public MaterialAlertDialogBuilder setIcon(@DrawableRes int iconId) {
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return (MaterialAlertDialogBuilder) super.setIcon(iconId);
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}
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@NonNull
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@Override
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public MaterialAlertDialogBuilder setIcon(@Nullable Drawable icon) {
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return (MaterialAlertDialogBuilder) super.setIcon(icon);
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}
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@NonNull
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@Override
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public MaterialAlertDialogBuilder setIconAttribute(@AttrRes int attrId) {
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return (MaterialAlertDialogBuilder) super.setIconAttribute(attrId);
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}
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@NonNull
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@Override
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public MaterialAlertDialogBuilder setPositiveButton(
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@StringRes int textId, final OnClickListener listener) {
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return (MaterialAlertDialogBuilder) super.setPositiveButton(textId, listener);
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}
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@NonNull
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@Override
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public MaterialAlertDialogBuilder setPositiveButton(
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CharSequence text, final OnClickListener listener) {
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return (MaterialAlertDialogBuilder) super.setPositiveButton(text, listener);
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}
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@NonNull
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@Override
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public MaterialAlertDialogBuilder setPositiveButtonIcon(Drawable icon) {
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return (MaterialAlertDialogBuilder) super.setPositiveButtonIcon(icon);
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}
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@NonNull
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@Override
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public MaterialAlertDialogBuilder setNegativeButton(
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@StringRes int textId, final OnClickListener listener) {
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return (MaterialAlertDialogBuilder) super.setNegativeButton(textId, listener);
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}
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@NonNull
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@Override
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public MaterialAlertDialogBuilder setNegativeButton(
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CharSequence text, final OnClickListener listener) {
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return (MaterialAlertDialogBuilder) super.setNegativeButton(text, listener);
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}
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@NonNull
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@Override
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public MaterialAlertDialogBuilder setNegativeButtonIcon(Drawable icon) {
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return (MaterialAlertDialogBuilder) super.setNegativeButtonIcon(icon);
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}
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@NonNull
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@Override
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public MaterialAlertDialogBuilder setNeutralButton(
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@StringRes int textId, final OnClickListener listener) {
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return (MaterialAlertDialogBuilder) super.setNeutralButton(textId, listener);
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}
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@NonNull
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@Override
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public MaterialAlertDialogBuilder setNeutralButton(
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CharSequence text, final OnClickListener listener) {
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return (MaterialAlertDialogBuilder) super.setNeutralButton(text, listener);
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}
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@NonNull
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@Override
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public MaterialAlertDialogBuilder setNeutralButtonIcon(Drawable icon) {
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return (MaterialAlertDialogBuilder) super.setNeutralButtonIcon(icon);
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}
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@NonNull
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@Override
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public MaterialAlertDialogBuilder setCancelable(boolean cancelable) {
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return (MaterialAlertDialogBuilder) super.setCancelable(cancelable);
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}
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@NonNull
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@Override
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public MaterialAlertDialogBuilder setOnCancelListener(OnCancelListener onCancelListener) {
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return (MaterialAlertDialogBuilder) super.setOnCancelListener(onCancelListener);
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}
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@NonNull
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@Override
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public MaterialAlertDialogBuilder setOnDismissListener(OnDismissListener onDismissListener) {
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return (MaterialAlertDialogBuilder) super.setOnDismissListener(onDismissListener);
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}
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@NonNull
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@Override
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public MaterialAlertDialogBuilder setOnKeyListener(OnKeyListener onKeyListener) {
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return (MaterialAlertDialogBuilder) super.setOnKeyListener(onKeyListener);
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}
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@NonNull
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@Override
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public MaterialAlertDialogBuilder setItems(
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@ArrayRes int itemsId, final OnClickListener listener) {
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return (MaterialAlertDialogBuilder) super.setItems(itemsId, listener);
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}
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@NonNull
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@Override
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public MaterialAlertDialogBuilder setItems(CharSequence[] items, final OnClickListener listener) {
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return (MaterialAlertDialogBuilder) super.setItems(items, listener);
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}
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@NonNull
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@Override
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public MaterialAlertDialogBuilder setAdapter(
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final ListAdapter adapter, final OnClickListener listener) {
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return (MaterialAlertDialogBuilder) super.setAdapter(adapter, listener);
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}
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@NonNull
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@Override
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public MaterialAlertDialogBuilder setCursor(
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final Cursor cursor, final OnClickListener listener, String labelColumn) {
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return (MaterialAlertDialogBuilder) super.setCursor(cursor, listener, labelColumn);
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}
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@NonNull
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@Override
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public MaterialAlertDialogBuilder setMultiChoiceItems(
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@ArrayRes int itemsId, boolean[] checkedItems, final OnMultiChoiceClickListener listener) {
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return (MaterialAlertDialogBuilder) super.setMultiChoiceItems(itemsId, checkedItems, listener);
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}
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@NonNull
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@Override
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public MaterialAlertDialogBuilder setMultiChoiceItems(
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CharSequence[] items, boolean[] checkedItems, final OnMultiChoiceClickListener listener) {
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return (MaterialAlertDialogBuilder) super.setMultiChoiceItems(items, checkedItems, listener);
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}
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@NonNull
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@Override
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public MaterialAlertDialogBuilder setMultiChoiceItems(
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Cursor cursor,
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String isCheckedColumn,
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String labelColumn,
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final OnMultiChoiceClickListener listener) {
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return (MaterialAlertDialogBuilder)
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super.setMultiChoiceItems(cursor, isCheckedColumn, labelColumn, listener);
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}
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@NonNull
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@Override
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public MaterialAlertDialogBuilder setSingleChoiceItems(
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@ArrayRes int itemsId, int checkedItem, final OnClickListener listener) {
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return (MaterialAlertDialogBuilder) super.setSingleChoiceItems(itemsId, checkedItem, listener);
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}
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@NonNull
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@Override
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public MaterialAlertDialogBuilder setSingleChoiceItems(
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Cursor cursor, int checkedItem, String labelColumn, final OnClickListener listener) {
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return (MaterialAlertDialogBuilder)
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super.setSingleChoiceItems(cursor, checkedItem, labelColumn, listener);
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}
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@NonNull
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@Override
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public MaterialAlertDialogBuilder setSingleChoiceItems(
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CharSequence[] items, int checkedItem, final OnClickListener listener) {
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return (MaterialAlertDialogBuilder) super.setSingleChoiceItems(items, checkedItem, listener);
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}
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@NonNull
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@Override
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public MaterialAlertDialogBuilder setSingleChoiceItems(
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ListAdapter adapter, int checkedItem, final OnClickListener listener) {
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return (MaterialAlertDialogBuilder) super.setSingleChoiceItems(adapter, checkedItem, listener);
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}
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@NonNull
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@Override
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public MaterialAlertDialogBuilder setOnItemSelectedListener(
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final AdapterView.OnItemSelectedListener listener) {
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return (MaterialAlertDialogBuilder) super.setOnItemSelectedListener(listener);
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}
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@NonNull
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@Override
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public MaterialAlertDialogBuilder setView(int layoutResId) {
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return (MaterialAlertDialogBuilder) super.setView(layoutResId);
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}
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@NonNull
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@Override
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public MaterialAlertDialogBuilder setView(View view) {
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return (MaterialAlertDialogBuilder) super.setView(view);
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}
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}
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