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TextInputLayout.java
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/*
* Copyright (C) 2015 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.google.android.material.textfield;
import com.google.android.material.R;
import static androidx.annotation.RestrictTo.Scope.LIBRARY_GROUP;
import static com.google.android.material.textfield.EditTextUtils.isEditable;
import static com.google.android.material.textfield.IndicatorViewController.COUNTER_INDEX;
import static com.google.android.material.theme.overlay.MaterialThemeOverlay.wrap;
import android.animation.ValueAnimator;
import android.annotation.TargetApi;
import android.content.Context;
import android.content.res.ColorStateList;
import android.content.res.Configuration;
import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.Paint;
import android.graphics.PorterDuff;
import android.graphics.Rect;
import android.graphics.RectF;
import android.graphics.Typeface;
import android.graphics.drawable.ColorDrawable;
import android.graphics.drawable.Drawable;
import android.graphics.drawable.LayerDrawable;
import android.graphics.drawable.RippleDrawable;
import android.graphics.drawable.StateListDrawable;
import android.os.Build.VERSION;
import android.os.Build.VERSION_CODES;
import android.os.Parcel;
import android.os.Parcelable;
import androidx.appcompat.content.res.AppCompatResources;
import androidx.appcompat.widget.AppCompatDrawableManager;
import androidx.appcompat.widget.AppCompatTextView;
import androidx.appcompat.widget.TintTypedArray;
import android.text.Editable;
import android.text.StaticLayout;
import android.text.TextPaint;
import android.text.TextUtils;
import android.text.TextWatcher;
import android.util.AttributeSet;
import android.util.Log;
import android.util.SparseArray;
import android.view.Gravity;
import android.view.View;
import android.view.ViewGroup;
import android.view.ViewStructure;
import android.view.ViewTreeObserver.OnGlobalLayoutListener;
import android.view.accessibility.AccessibilityEvent;
import android.widget.AutoCompleteTextView;
import android.widget.EditText;
import android.widget.FrameLayout;
import android.widget.ImageView.ScaleType;
import android.widget.LinearLayout;
import android.widget.TextView;
import androidx.annotation.ColorInt;
import androidx.annotation.ColorRes;
import androidx.annotation.DimenRes;
import androidx.annotation.DrawableRes;
import androidx.annotation.IntDef;
import androidx.annotation.IntRange;
import androidx.annotation.NonNull;
import androidx.annotation.Nullable;
import androidx.annotation.Px;
import androidx.annotation.RequiresApi;
import androidx.annotation.RestrictTo;
import androidx.annotation.StringRes;
import androidx.annotation.StyleRes;
import androidx.annotation.VisibleForTesting;
import androidx.core.content.ContextCompat;
import androidx.core.graphics.drawable.DrawableCompat;
import androidx.core.text.BidiFormatter;
import androidx.core.view.AccessibilityDelegateCompat;
import androidx.core.view.ViewCompat;
import androidx.core.view.accessibility.AccessibilityNodeInfoCompat;
import androidx.core.widget.TextViewCompat;
import androidx.customview.view.AbsSavedState;
import androidx.transition.Fade;
import androidx.transition.TransitionManager;
import com.google.android.material.animation.AnimationUtils;
import com.google.android.material.color.MaterialColors;
import com.google.android.material.internal.CheckableImageButton;
import com.google.android.material.internal.CollapsingTextHelper;
import com.google.android.material.internal.DescendantOffsetUtils;
import com.google.android.material.internal.StaticLayoutBuilderCompat;
import com.google.android.material.internal.StaticLayoutBuilderCompat.StaticLayoutBuilderCompatException;
import com.google.android.material.internal.ThemeEnforcement;
import com.google.android.material.internal.ViewUtils;
import com.google.android.material.motion.MotionUtils;
import com.google.android.material.resources.MaterialResources;
import com.google.android.material.shape.CornerFamily;
import com.google.android.material.shape.CornerTreatment;
import com.google.android.material.shape.MaterialShapeDrawable;
import com.google.android.material.shape.ShapeAppearanceModel;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.util.LinkedHashSet;
/**
* Layout which wraps a {@link TextInputEditText}, {@link android.widget.EditText}, or descendant to
* show a floating label when the hint is hidden while the user inputs text.
*
* <p>Also supports:
*
* <ul>
* <li>Showing an error via {@link #setErrorEnabled(boolean)} and {@link #setError(CharSequence)},
* along with showing an error icon via {@link #setErrorIconDrawable}
* <li>Showing helper text via {@link #setHelperTextEnabled(boolean)} and {@link
* #setHelperText(CharSequence)}
* <li>Showing placeholder text via {@link #setPlaceholderText(CharSequence)}
* <li>Showing prefix text via {@link #setPrefixText(CharSequence)}
* <li>Showing suffix text via {@link #setSuffixText(CharSequence)}
* <li>Showing a character counter via {@link #setCounterEnabled(boolean)} and {@link
* #setCounterMaxLength(int)}
* <li>Password visibility toggling via {@link #setEndIconMode(int)} API and related attribute. If
* set, a button is displayed to toggle between the password being displayed as plain-text or
* disguised, when your EditText is set to display a password.
* <li>Clearing text functionality via {@link #setEndIconMode(int)} API and related attribute. If
* set, a button is displayed when text is present and clicking it clears the EditText field.
* <li>Showing a custom icon specified via {@link #setEndIconMode(int)} API and related attribute.
* You should specify a drawable and content description for the icon. Optionally, you can
* also specify an {@link android.view.View.OnClickListener}, an {@link
* OnEditTextAttachedListener} and an {@link OnEndIconChangedListener}.
* <p><strong>Note:</strong> When using an end icon, the 'end' compound drawable of the
* EditText will be overridden while the end icon view is visible. To ensure that any existing
* drawables are restored correctly, you should set those compound drawables relatively
* (start/end), as opposed to absolutely (left/right).
* <li>Showing a start icon via {@link #setStartIconDrawable(Drawable)} API and related attribute.
* You should specify a content description for the icon. Optionally, you can also specify an
* {@link android.view.View.OnClickListener} for it.
* <p><strong>Note:</strong> Use the {@link #setStartIconDrawable(Drawable)} API in place of
* setting a start/left compound drawable on the EditText. When using a start icon, the
* 'start/left' compound drawable of the EditText will be overridden.
* <li>Showing a button that when clicked displays a dropdown menu. The selected option is
* displayed above the dropdown. You need to use an {@link AutoCompleteTextView} instead of a
* {@link TextInputEditText} as the input text child, and a
* Widget.MaterialComponents.TextInputLayout.(...).ExposedDropdownMenu style.
* <p>To disable user input you should set
* <pre>android:editable="false"</pre>
* on the {@link AutoCompleteTextView}.
* </ul>
*
* <p>The {@link TextInputEditText} class is provided to be used as the input text child of this
* layout. Using TextInputEditText instead of an EditText provides accessibility support for the
* text field and allows TextInputLayout greater control over the visual aspects of the text field.
* This is an example usage:
*
* <pre>
* <com.google.android.material.textfield.TextInputLayout
* android:layout_width="match_parent"
* android:layout_height="wrap_content"
* android:hint="@string/form_username">
*
* <com.google.android.material.textfield.TextInputEditText
* android:layout_width="match_parent"
* android:layout_height="wrap_content"/>
*
* </com.google.android.material.textfield.TextInputLayout>
* </pre>
*
* The hint should be set on the TextInputLayout, rather than the EditText. If a hint is specified
* on the child EditText in XML, the TextInputLayout might still work correctly; TextInputLayout
* will use the EditText's hint as its floating label. However, future calls to modify the hint will
* not update TextInputLayout's hint. To avoid unintended behavior, call {@link
* TextInputLayout#setHint(CharSequence)} and {@link TextInputLayout#getHint()} on TextInputLayout,
* instead of on EditText.
*
* <p>If you construct the {@link TextInputEditText} child of a {@link TextInputLayout}
* programmatically, you should use {@link TextInputLayout}'s {@code context} to create the view.
* This will allow {@link TextInputLayout} to pass along the appropriate styling to the {@link
* TextInputEditText}.
*
* <p>If the {@link EditText} child is not a {@link TextInputEditText}, make sure to set the {@link
* EditText}'s {@code android:background} to {@code null} when using an outlined or filled text
* field. This allows {@link TextInputLayout} to set the {@link EditText}'s background to an
* outlined or filled box, respectively.
*
* <p><strong>Note:</strong> The actual view hierarchy present under TextInputLayout is
* <strong>NOT</strong> guaranteed to match the view hierarchy as written in XML. As a result, calls
* to {@code getParent()} on children of the TextInputLayout -- such as a TextInputEditText -- may
* not return the TextInputLayout itself, but rather an intermediate View. If you need to access a
* View directly, set an {@code android:id} and use {@link View#findViewById(int)}.
*
* <p>For more information, see the <a
* href="https://github.com/material-components/material-components-android/blob/master/docs/components/TextField.md">component
* developer guidance</a> and <a href="https://material.io/components/text-fields/overview">design
* guidelines</a>.
*/
public class TextInputLayout extends LinearLayout implements OnGlobalLayoutListener {
private static final String TAG = "TextInputLayout";
private static final int DEF_STYLE_RES = R.style.Widget_Design_TextInputLayout;
/** Duration for the label's scale up and down animations. */
private static final int LABEL_SCALE_ANIMATION_DURATION = 167;
private static final int DEFAULT_PLACEHOLDER_FADE_DURATION = 87;
private static final int PLACEHOLDER_START_DELAY = 67;
private static final int INVALID_MAX_LENGTH = -1;
private static final int NO_WIDTH = -1;
private static final int[][] EDIT_TEXT_BACKGROUND_RIPPLE_STATE =
new int[][] {
new int[] {android.R.attr.state_pressed}, new int[] {},
};
private static final String LOG_TAG = "TextInputLayout";
@NonNull private final FrameLayout inputFrame;
@NonNull private final StartCompoundLayout startLayout;
@NonNull private final EndCompoundLayout endLayout;
private final int extraSpaceBetweenPlaceholderAndHint;
EditText editText;
private CharSequence originalHint;
private int minEms = NO_WIDTH;
private int maxEms = NO_WIDTH;
private int minWidth = NO_WIDTH;
private int maxWidth = NO_WIDTH;
private final IndicatorViewController indicatorViewController = new IndicatorViewController(this);
/** Interface definition for a length counter. */
public interface LengthCounter {
/**
* Counts the length of the text and returns it.
*
* @param text The text to count the length for.
* @return The count that the counter should be updated with.
*/
int countLength(@Nullable Editable text);
}
boolean counterEnabled;
private int counterMaxLength;
private boolean counterOverflowed;
@NonNull
private LengthCounter lengthCounter = (Editable text) -> text != null ? text.length() : 0;
@Nullable private TextView counterView;
private int counterOverflowTextAppearance;
private int counterTextAppearance;
private CharSequence placeholderText;
private boolean placeholderEnabled;
private TextView placeholderTextView;
@Nullable private ColorStateList placeholderTextColor;
private int placeholderTextAppearance;
@Nullable private Fade placeholderFadeIn;
@Nullable private Fade placeholderFadeOut;
@Nullable private ColorStateList counterTextColor;
@Nullable private ColorStateList counterOverflowTextColor;
@Nullable private ColorStateList cursorColor;
@Nullable private ColorStateList cursorErrorColor;
private boolean hintEnabled;
private CharSequence hint;
/**
* {@code true} when providing a hint on behalf of a child {@link EditText}. If the child is an
* instance of {@link TextInputEditText}, this value defines the behavior of its {@link
* TextInputEditText#getHint()} method.
*/
private boolean isProvidingHint;
@Nullable private MaterialShapeDrawable boxBackground;
private MaterialShapeDrawable outlinedDropDownMenuBackground;
private StateListDrawable filledDropDownMenuBackground;
private boolean boxBackgroundApplied;
@Nullable private MaterialShapeDrawable boxUnderlineDefault;
@Nullable private MaterialShapeDrawable boxUnderlineFocused;
@NonNull private ShapeAppearanceModel shapeAppearanceModel;
private boolean areCornerRadiiRtl;
private final int boxLabelCutoutPaddingPx;
@BoxBackgroundMode private int boxBackgroundMode;
private int boxCollapsedPaddingTopPx;
private int boxStrokeWidthPx;
private int boxStrokeWidthDefaultPx;
private int boxStrokeWidthFocusedPx;
@ColorInt private int boxStrokeColor;
@ColorInt private int boxBackgroundColor;
/**
* Values for box background mode. There is either a filled background, an outline background, or
* no background.
*/
@IntDef({BOX_BACKGROUND_NONE, BOX_BACKGROUND_FILLED, BOX_BACKGROUND_OUTLINE})
@Retention(RetentionPolicy.SOURCE)
public @interface BoxBackgroundMode {}
public static final int BOX_BACKGROUND_NONE = 0;
public static final int BOX_BACKGROUND_FILLED = 1;
public static final int BOX_BACKGROUND_OUTLINE = 2;
private final Rect tmpRect = new Rect();
private final Rect tmpBoundsRect = new Rect();
private final RectF tmpRectF = new RectF();
private Typeface typeface;
@Nullable private Drawable startDummyDrawable;
private int startDummyDrawableWidth;
/**
* Values for the end icon mode.
*
* @hide
*/
@RestrictTo(LIBRARY_GROUP)
@IntDef({
END_ICON_CUSTOM,
END_ICON_NONE,
END_ICON_PASSWORD_TOGGLE,
END_ICON_CLEAR_TEXT,
END_ICON_DROPDOWN_MENU
})
@Retention(RetentionPolicy.SOURCE)
public @interface EndIconMode {}
/**
* The TextInputLayout will show a custom icon specified by the user.
*
* @see #setEndIconMode(int)
* @see #getEndIconMode()
* @see #setEndIconDrawable(Drawable)
* @see #setEndIconContentDescription(CharSequence)
* @see #setEndIconOnClickListener(OnClickListener) (optionally)
* @see #addOnEditTextAttachedListener(OnEditTextAttachedListener) (optionally)
* @see #addOnEndIconChangedListener(OnEndIconChangedListener) (optionally)
*/
public static final int END_ICON_CUSTOM = -1;
/**
* Default for the TextInputLayout. It will not display an end icon.
*
* @see #setEndIconMode(int)
* @see #getEndIconMode()
*/
public static final int END_ICON_NONE = 0;
/**
* The TextInputLayout will show a password toggle button if its EditText displays a password.
* When this end icon is clicked, the password is shown as plain-text if it was disguised, or
* vice-versa.
*
* @see #setEndIconMode(int)
* @see #getEndIconMode()
*/
public static final int END_ICON_PASSWORD_TOGGLE = 1;
/**
* The TextInputLayout will show a clear text button while there is input in the EditText.
* Clicking it will clear out the text and hide the icon.
*
* @see #setEndIconMode(int)
* @see #getEndIconMode()
*/
public static final int END_ICON_CLEAR_TEXT = 2;
/**
* The TextInputLayout will show a dropdown button if the EditText is an {@link
* AutoCompleteTextView} and a {@code
* Widget.MaterialComponents.TextInputLayout.(...).ExposedDropdownMenu} style is being used.
*
* <p>Clicking the button will display a popup with a list of options. The current selected option
* is displayed on the EditText.
*/
public static final int END_ICON_DROPDOWN_MENU = 3;
/**
* Callback interface invoked when the view's {@link EditText} is attached, or from {@link
* #addOnEditTextAttachedListener(OnEditTextAttachedListener)} if the edit text is already
* present.
*
* @see #addOnEditTextAttachedListener(OnEditTextAttachedListener)
*/
public interface OnEditTextAttachedListener {
/**
* Called when the {@link EditText} is attached, or from {@link
* #addOnEditTextAttachedListener(OnEditTextAttachedListener)} if the edit text is already
* present.
*
* @param textInputLayout the {@link TextInputLayout}
*/
void onEditTextAttached(@NonNull TextInputLayout textInputLayout);
}
/**
* Callback interface invoked when the view's end icon changes.
*
* @see #setEndIconMode(int)
*/
public interface OnEndIconChangedListener {
/**
* Called when the end icon changes.
*
* @param textInputLayout the {@link TextInputLayout}
* @param previousIcon the end icon mode the view previously had set
*/
void onEndIconChanged(@NonNull TextInputLayout textInputLayout, @EndIconMode int previousIcon);
}
private final LinkedHashSet<OnEditTextAttachedListener> editTextAttachedListeners =
new LinkedHashSet<>();
@Nullable private Drawable endDummyDrawable;
private int endDummyDrawableWidth;
private Drawable originalEditTextEndDrawable;
private ColorStateList defaultHintTextColor;
private ColorStateList focusedTextColor;
@ColorInt private int defaultStrokeColor;
@ColorInt private int hoveredStrokeColor;
@ColorInt private int focusedStrokeColor;
private ColorStateList strokeErrorColor;
@ColorInt private int defaultFilledBackgroundColor;
@ColorInt private int disabledFilledBackgroundColor;
@ColorInt private int focusedFilledBackgroundColor;
@ColorInt private int hoveredFilledBackgroundColor;
@ColorInt private int disabledColor;
int originalEditTextMinimumHeight;
// Only used for testing
private boolean hintExpanded;
final CollapsingTextHelper collapsingTextHelper = new CollapsingTextHelper(this);
private boolean expandedHintEnabled;
private boolean hintAnimationEnabled;
private ValueAnimator animator;
private boolean inDrawableStateChanged;
private boolean restoringSavedState;
private boolean globalLayoutListenerAdded = false;
public TextInputLayout(@NonNull Context context) {
this(context, null);
}
public TextInputLayout(@NonNull Context context, @Nullable AttributeSet attrs) {
this(context, attrs, R.attr.textInputStyle);
}
public TextInputLayout(@NonNull Context context, @Nullable AttributeSet attrs, int defStyleAttr) {
super(wrap(context, attrs, defStyleAttr, DEF_STYLE_RES), attrs, defStyleAttr);
// Ensure we are using the correctly themed context rather than the context that was passed in.
context = getContext();
setOrientation(VERTICAL);
setWillNotDraw(false);
setAddStatesFromChildren(true);
inputFrame = new FrameLayout(context);
inputFrame.setAddStatesFromChildren(true);
collapsingTextHelper.setTextSizeInterpolator(AnimationUtils.LINEAR_INTERPOLATOR);
collapsingTextHelper.setPositionInterpolator(AnimationUtils.LINEAR_INTERPOLATOR);
collapsingTextHelper.setCollapsedTextGravity(Gravity.TOP | Gravity.START);
final TintTypedArray a =
ThemeEnforcement.obtainTintedStyledAttributes(
context,
attrs,
R.styleable.TextInputLayout,
defStyleAttr,
DEF_STYLE_RES,
R.styleable.TextInputLayout_counterTextAppearance,
R.styleable.TextInputLayout_counterOverflowTextAppearance,
R.styleable.TextInputLayout_errorTextAppearance,
R.styleable.TextInputLayout_helperTextTextAppearance,
R.styleable.TextInputLayout_hintTextAppearance);
startLayout = new StartCompoundLayout(this, a);
hintEnabled = a.getBoolean(R.styleable.TextInputLayout_hintEnabled, true);
setHint(a.getText(R.styleable.TextInputLayout_android_hint));
hintAnimationEnabled = a.getBoolean(R.styleable.TextInputLayout_hintAnimationEnabled, true);
expandedHintEnabled = a.getBoolean(R.styleable.TextInputLayout_expandedHintEnabled, true);
if (a.hasValue(R.styleable.TextInputLayout_android_minEms)) {
setMinEms(a.getInt(R.styleable.TextInputLayout_android_minEms, NO_WIDTH));
} else if (a.hasValue(R.styleable.TextInputLayout_android_minWidth)) {
setMinWidth(a.getDimensionPixelSize(R.styleable.TextInputLayout_android_minWidth, NO_WIDTH));
}
if (a.hasValue(R.styleable.TextInputLayout_android_maxEms)) {
setMaxEms(a.getInt(R.styleable.TextInputLayout_android_maxEms, NO_WIDTH));
} else if (a.hasValue(R.styleable.TextInputLayout_android_maxWidth)) {
setMaxWidth(a.getDimensionPixelSize(R.styleable.TextInputLayout_android_maxWidth, NO_WIDTH));
}
shapeAppearanceModel =
ShapeAppearanceModel.builder(context, attrs, defStyleAttr, DEF_STYLE_RES).build();
boxLabelCutoutPaddingPx =
context
.getResources()
.getDimensionPixelOffset(R.dimen.mtrl_textinput_box_label_cutout_padding);
boxCollapsedPaddingTopPx =
a.getDimensionPixelOffset(R.styleable.TextInputLayout_boxCollapsedPaddingTop, 0);
extraSpaceBetweenPlaceholderAndHint =
getResources().getDimensionPixelSize(R.dimen.m3_multiline_hint_filled_text_extra_space);
boxStrokeWidthDefaultPx =
a.getDimensionPixelSize(
R.styleable.TextInputLayout_boxStrokeWidth,
context
.getResources()
.getDimensionPixelSize(R.dimen.mtrl_textinput_box_stroke_width_default));
boxStrokeWidthFocusedPx =
a.getDimensionPixelSize(
R.styleable.TextInputLayout_boxStrokeWidthFocused,
context
.getResources()
.getDimensionPixelSize(R.dimen.mtrl_textinput_box_stroke_width_focused));
boxStrokeWidthPx = boxStrokeWidthDefaultPx;
float boxCornerRadiusTopStart =
a.getDimension(R.styleable.TextInputLayout_boxCornerRadiusTopStart, -1f);
float boxCornerRadiusTopEnd =
a.getDimension(R.styleable.TextInputLayout_boxCornerRadiusTopEnd, -1f);
float boxCornerRadiusBottomEnd =
a.getDimension(R.styleable.TextInputLayout_boxCornerRadiusBottomEnd, -1f);
float boxCornerRadiusBottomStart =
a.getDimension(R.styleable.TextInputLayout_boxCornerRadiusBottomStart, -1f);
ShapeAppearanceModel.Builder shapeBuilder = shapeAppearanceModel.toBuilder();
if (boxCornerRadiusTopStart >= 0) {
shapeBuilder.setTopLeftCornerSize(boxCornerRadiusTopStart);
}
if (boxCornerRadiusTopEnd >= 0) {
shapeBuilder.setTopRightCornerSize(boxCornerRadiusTopEnd);
}
if (boxCornerRadiusBottomEnd >= 0) {
shapeBuilder.setBottomRightCornerSize(boxCornerRadiusBottomEnd);
}
if (boxCornerRadiusBottomStart >= 0) {
shapeBuilder.setBottomLeftCornerSize(boxCornerRadiusBottomStart);
}
shapeAppearanceModel = shapeBuilder.build();
ColorStateList filledBackgroundColorStateList =
MaterialResources.getColorStateList(
context, a, R.styleable.TextInputLayout_boxBackgroundColor);
if (filledBackgroundColorStateList != null) {
defaultFilledBackgroundColor = filledBackgroundColorStateList.getDefaultColor();
boxBackgroundColor = defaultFilledBackgroundColor;
if (filledBackgroundColorStateList.isStateful()) {
disabledFilledBackgroundColor =
filledBackgroundColorStateList.getColorForState(
new int[] {-android.R.attr.state_enabled}, -1);
focusedFilledBackgroundColor =
filledBackgroundColorStateList.getColorForState(
new int[] {android.R.attr.state_focused, android.R.attr.state_enabled}, -1);
hoveredFilledBackgroundColor =
filledBackgroundColorStateList.getColorForState(
new int[] {android.R.attr.state_hovered, android.R.attr.state_enabled}, -1);
} else {
focusedFilledBackgroundColor = defaultFilledBackgroundColor;
ColorStateList mtrlFilledBackgroundColorStateList =
AppCompatResources.getColorStateList(context, R.color.mtrl_filled_background_color);
disabledFilledBackgroundColor =
mtrlFilledBackgroundColorStateList.getColorForState(
new int[] {-android.R.attr.state_enabled}, -1);
hoveredFilledBackgroundColor =
mtrlFilledBackgroundColorStateList.getColorForState(
new int[] {android.R.attr.state_hovered}, -1);
}
} else {
boxBackgroundColor = Color.TRANSPARENT;
defaultFilledBackgroundColor = Color.TRANSPARENT;
disabledFilledBackgroundColor = Color.TRANSPARENT;
focusedFilledBackgroundColor = Color.TRANSPARENT;
hoveredFilledBackgroundColor = Color.TRANSPARENT;
}
if (a.hasValue(R.styleable.TextInputLayout_android_textColorHint)) {
defaultHintTextColor =
focusedTextColor = a.getColorStateList(R.styleable.TextInputLayout_android_textColorHint);
}
ColorStateList boxStrokeColorStateList =
MaterialResources.getColorStateList(context, a, R.styleable.TextInputLayout_boxStrokeColor);
// Default values for stroke colors if boxStrokeColorStateList is not stateful
focusedStrokeColor = a.getColor(R.styleable.TextInputLayout_boxStrokeColor, Color.TRANSPARENT);
defaultStrokeColor =
ContextCompat.getColor(context, R.color.mtrl_textinput_default_box_stroke_color);
disabledColor = ContextCompat.getColor(context, R.color.mtrl_textinput_disabled_color);
hoveredStrokeColor =
ContextCompat.getColor(context, R.color.mtrl_textinput_hovered_box_stroke_color);
// Values from boxStrokeColorStateList
if (boxStrokeColorStateList != null) {
setBoxStrokeColorStateList(boxStrokeColorStateList);
}
if (a.hasValue(R.styleable.TextInputLayout_boxStrokeErrorColor)) {
setBoxStrokeErrorColor(
MaterialResources.getColorStateList(
context, a, R.styleable.TextInputLayout_boxStrokeErrorColor));
}
final int hintAppearance = a.getResourceId(R.styleable.TextInputLayout_hintTextAppearance, -1);
if (hintAppearance != -1) {
setHintTextAppearance(a.getResourceId(R.styleable.TextInputLayout_hintTextAppearance, 0));
}
cursorColor = a.getColorStateList(R.styleable.TextInputLayout_cursorColor);
cursorErrorColor = a.getColorStateList(R.styleable.TextInputLayout_cursorErrorColor);
final int errorTextAppearance =
a.getResourceId(R.styleable.TextInputLayout_errorTextAppearance, 0);
final CharSequence errorContentDescription =
a.getText(R.styleable.TextInputLayout_errorContentDescription);
final int errorAccessibilityLiveRegion =
a.getInt(
R.styleable.TextInputLayout_errorAccessibilityLiveRegion,
ViewCompat.ACCESSIBILITY_LIVE_REGION_POLITE);
final boolean errorEnabled = a.getBoolean(R.styleable.TextInputLayout_errorEnabled, false);
final int helperTextTextAppearance =
a.getResourceId(R.styleable.TextInputLayout_helperTextTextAppearance, 0);
final boolean helperTextEnabled =
a.getBoolean(R.styleable.TextInputLayout_helperTextEnabled, false);
final CharSequence helperText = a.getText(R.styleable.TextInputLayout_helperText);
final int placeholderTextAppearance =
a.getResourceId(R.styleable.TextInputLayout_placeholderTextAppearance, 0);
final CharSequence placeholderText = a.getText(R.styleable.TextInputLayout_placeholderText);
final boolean counterEnabled = a.getBoolean(R.styleable.TextInputLayout_counterEnabled, false);
setCounterMaxLength(a.getInt(R.styleable.TextInputLayout_counterMaxLength, INVALID_MAX_LENGTH));
counterTextAppearance = a.getResourceId(R.styleable.TextInputLayout_counterTextAppearance, 0);
counterOverflowTextAppearance =
a.getResourceId(R.styleable.TextInputLayout_counterOverflowTextAppearance, 0);
setBoxBackgroundMode(
a.getInt(R.styleable.TextInputLayout_boxBackgroundMode, BOX_BACKGROUND_NONE));
setErrorContentDescription(errorContentDescription);
setErrorAccessibilityLiveRegion(errorAccessibilityLiveRegion);
setCounterOverflowTextAppearance(counterOverflowTextAppearance);
setHelperTextTextAppearance(helperTextTextAppearance);
setErrorTextAppearance(errorTextAppearance);
setCounterTextAppearance(counterTextAppearance);
setPlaceholderText(placeholderText);
setPlaceholderTextAppearance(placeholderTextAppearance);
if (a.hasValue(R.styleable.TextInputLayout_errorTextColor)) {
setErrorTextColor(a.getColorStateList(R.styleable.TextInputLayout_errorTextColor));
}
if (a.hasValue(R.styleable.TextInputLayout_helperTextTextColor)) {
setHelperTextColor(a.getColorStateList(R.styleable.TextInputLayout_helperTextTextColor));
}
if (a.hasValue(R.styleable.TextInputLayout_hintTextColor)) {
setHintTextColor(a.getColorStateList(R.styleable.TextInputLayout_hintTextColor));
}
if (a.hasValue(R.styleable.TextInputLayout_counterTextColor)) {
setCounterTextColor(a.getColorStateList(R.styleable.TextInputLayout_counterTextColor));
}
if (a.hasValue(R.styleable.TextInputLayout_counterOverflowTextColor)) {
setCounterOverflowTextColor(
a.getColorStateList(R.styleable.TextInputLayout_counterOverflowTextColor));
}
if (a.hasValue(R.styleable.TextInputLayout_placeholderTextColor)) {
setPlaceholderTextColor(
a.getColorStateList(R.styleable.TextInputLayout_placeholderTextColor));
}
endLayout = new EndCompoundLayout(this, a);
final boolean enabled = a.getBoolean(R.styleable.TextInputLayout_android_enabled, true);
setHintMaxLines(a.getInt(R.styleable.TextInputLayout_hintMaxLines, 1));
a.recycle();
// For accessibility, consider TextInputLayout itself to be a simple container for an EditText,
// and do not expose it to accessibility services.
setImportantForAccessibility(View.IMPORTANT_FOR_ACCESSIBILITY_NO);
// For autofill to work as intended, TextInputLayout needs to pass the hint text to the nested
// EditText so marking it as IMPORTANT_FOR_AUTOFILL_YES.
if (VERSION.SDK_INT >= VERSION_CODES.O) {
setImportantForAutofill(View.IMPORTANT_FOR_AUTOFILL_YES);
}
inputFrame.addView(startLayout);
inputFrame.addView(endLayout);
addView(inputFrame);
// TextInputLayout#setEnabled sets the enabled state not only for TextInputLayout itself but
// also for child views, so the method is called (and should be called) only after all child
// views have been added.
setEnabled(enabled);
setHelperTextEnabled(helperTextEnabled);
setErrorEnabled(errorEnabled);
setCounterEnabled(counterEnabled);
setHelperText(helperText);
}
@Override
public void onGlobalLayout() {
endLayout.getViewTreeObserver().removeOnGlobalLayoutListener(this);
globalLayoutListenerAdded = false;
boolean updatedHeight = updateEditTextHeightBasedOnIcon();
boolean updatedIcon = updateDummyDrawables();
if (updatedHeight || updatedIcon) {
editText.post(() -> editText.requestLayout());
}
}
@Override
public void addView(
@NonNull View child, int index, @NonNull final ViewGroup.LayoutParams params) {
if (child instanceof EditText) {
// Make sure that the EditText is vertically at the bottom, so that it sits on the
// EditText's underline
FrameLayout.LayoutParams flp = new FrameLayout.LayoutParams(params);
flp.gravity = Gravity.CENTER_VERTICAL | (flp.gravity & ~Gravity.VERTICAL_GRAVITY_MASK);
inputFrame.addView(child, flp);
// Now use the EditText's LayoutParams as our own and update them to make enough space
// for the label
inputFrame.setLayoutParams(params);
updateInputLayoutMargins();
setEditText((EditText) child);
} else {
// Carry on adding the View...
super.addView(child, index, params);
}
}
@NonNull
MaterialShapeDrawable getBoxBackground() {
if (boxBackgroundMode == BOX_BACKGROUND_FILLED || boxBackgroundMode == BOX_BACKGROUND_OUTLINE) {
return boxBackground;
}
throw new IllegalStateException();
}
/**
* Set the box background mode (filled, outline, or none).
*
* <p>May be one of {@link #BOX_BACKGROUND_NONE}, {@link #BOX_BACKGROUND_FILLED}, or {@link
* #BOX_BACKGROUND_OUTLINE}.
*
* <p>Note: This method defines TextInputLayout's internal behavior (for example, it allows the
* hint to be displayed inline with the stroke in a cutout), but doesn't set all attributes that
* are set in the styles provided for the box background modes. To achieve the look of an outlined
* or filled text field, supplement this method with other methods that modify the box, such as
* {@link #setBoxStrokeColor(int)} and {@link #setBoxBackgroundColor(int)}.
*
* @param boxBackgroundMode box's background mode
* @throws IllegalArgumentException if boxBackgroundMode is not a @BoxBackgroundMode constant
*/
public void setBoxBackgroundMode(@BoxBackgroundMode int boxBackgroundMode) {
if (boxBackgroundMode == this.boxBackgroundMode) {
return;
}
this.boxBackgroundMode = boxBackgroundMode;
if (editText != null) {
onApplyBoxBackgroundMode();
}
}
/**
* Get the box background mode (filled, outline, or none).
*
* <p>May be one of {@link #BOX_BACKGROUND_NONE}, {@link #BOX_BACKGROUND_FILLED}, or {@link
* #BOX_BACKGROUND_OUTLINE}.
*/
@BoxBackgroundMode
public int getBoxBackgroundMode() {
return boxBackgroundMode;
}
private void onApplyBoxBackgroundMode() {
assignBoxBackgroundByMode();
updateEditTextBoxBackgroundIfNeeded();
updateTextInputBoxState();
updateBoxCollapsedPaddingTop();
adjustFilledEditTextPaddingForLargeFont();
if (boxBackgroundMode != BOX_BACKGROUND_NONE) {
updateInputLayoutMargins();
}
setDropDownMenuBackgroundIfNeeded();
}
private void assignBoxBackgroundByMode() {
switch (boxBackgroundMode) {
case BOX_BACKGROUND_FILLED:
boxBackground = new MaterialShapeDrawable(shapeAppearanceModel);
boxUnderlineDefault = new MaterialShapeDrawable();
boxUnderlineFocused = new MaterialShapeDrawable();
break;
case BOX_BACKGROUND_OUTLINE:
if (hintEnabled && !(boxBackground instanceof CutoutDrawable)) {
boxBackground = CutoutDrawable.create(shapeAppearanceModel);
} else {
boxBackground = new MaterialShapeDrawable(shapeAppearanceModel);
}
boxUnderlineDefault = null;
boxUnderlineFocused = null;
break;
case BOX_BACKGROUND_NONE:
boxBackground = null;
boxUnderlineDefault = null;
boxUnderlineFocused = null;
break;
default:
throw new IllegalArgumentException(
boxBackgroundMode + " is illegal; only @BoxBackgroundMode constants are supported.");
}
}
void updateEditTextBoxBackgroundIfNeeded() {
if (editText == null
|| boxBackground == null
// Only set boxBackground when edit text doesn't provide its own background.
|| (!boxBackgroundApplied && editText.getBackground() != null)
|| boxBackgroundMode == BOX_BACKGROUND_NONE) {
return;
}
updateEditTextBoxBackground();
boxBackgroundApplied = true;
}
private void updateEditTextBoxBackground() {
Drawable editTextBoxBackground = getEditTextBoxBackground();
editText.setBackground(editTextBoxBackground);
}
@Nullable
private Drawable getEditTextBoxBackground() {
if (!(editText instanceof AutoCompleteTextView) || isEditable(editText)) {
return boxBackground;
}
int rippleColor =
MaterialColors.getColor(
editText, androidx.appcompat.R.attr.colorControlHighlight);
if (boxBackgroundMode == TextInputLayout.BOX_BACKGROUND_OUTLINE) {
return getOutlinedBoxBackgroundWithRipple(
getContext(), boxBackground, rippleColor, EDIT_TEXT_BACKGROUND_RIPPLE_STATE);
} else if (boxBackgroundMode == TextInputLayout.BOX_BACKGROUND_FILLED) {
return getFilledBoxBackgroundWithRipple(
boxBackground, boxBackgroundColor, rippleColor, EDIT_TEXT_BACKGROUND_RIPPLE_STATE);
}
// Should not happen.
return null;
}
private static Drawable getOutlinedBoxBackgroundWithRipple(
Context context, MaterialShapeDrawable boxBackground, int rippleColor, int[][] states) {
LayerDrawable editTextBackground;
int surfaceColor = MaterialColors.getColor(context, R.attr.colorSurface, "TextInputLayout");
MaterialShapeDrawable rippleBackground =
new MaterialShapeDrawable(boxBackground.getShapeAppearanceModel());
int pressedBackgroundColor = MaterialColors.layer(rippleColor, surfaceColor, 0.1f);
int[] rippleBackgroundColors = new int[] { pressedBackgroundColor, Color.TRANSPARENT };
rippleBackground.setFillColor(new ColorStateList(states, rippleBackgroundColors));
rippleBackground.setTint(surfaceColor);
int[] colors = new int[] {pressedBackgroundColor, surfaceColor};
ColorStateList rippleColorStateList = new ColorStateList(states, colors);
MaterialShapeDrawable mask =
new MaterialShapeDrawable(boxBackground.getShapeAppearanceModel());
mask.setTint(Color.WHITE);
Drawable rippleDrawable = new RippleDrawable(rippleColorStateList, rippleBackground, mask);
Drawable[] layers = {rippleDrawable, boxBackground};
editTextBackground = new LayerDrawable(layers);
return editTextBackground;
}
private static Drawable getFilledBoxBackgroundWithRipple(
MaterialShapeDrawable boxBackground,
int boxBackgroundColor,
int rippleColor,
int[][] states) {
int pressedBackgroundColor = MaterialColors.layer(rippleColor, boxBackgroundColor, 0.1f);
int[] colors = new int[] { pressedBackgroundColor, boxBackgroundColor };
ColorStateList rippleColorStateList = new ColorStateList(states, colors);
return new RippleDrawable(rippleColorStateList, boxBackground, boxBackground);
}
private void setDropDownMenuBackgroundIfNeeded() {
if (!(editText instanceof AutoCompleteTextView)) {
return;
}
AutoCompleteTextView autoCompleteTextView = (AutoCompleteTextView) editText;
if (autoCompleteTextView.getDropDownBackground() == null) {
if (boxBackgroundMode == BOX_BACKGROUND_OUTLINE) {
autoCompleteTextView.setDropDownBackgroundDrawable(
getOrCreateOutlinedDropDownMenuBackground());
} else if (boxBackgroundMode == BOX_BACKGROUND_FILLED) {
autoCompleteTextView.setDropDownBackgroundDrawable(
getOrCreateFilledDropDownMenuBackground());
}
}
}
private Drawable getOrCreateOutlinedDropDownMenuBackground() {
if (outlinedDropDownMenuBackground == null) {
outlinedDropDownMenuBackground = getDropDownMaterialShapeDrawable(true);
}
return outlinedDropDownMenuBackground;
}
private Drawable getOrCreateFilledDropDownMenuBackground() {
if (filledDropDownMenuBackground == null) {
filledDropDownMenuBackground = new StateListDrawable();
filledDropDownMenuBackground.addState(
new int[] {android.R.attr.state_above_anchor},
getOrCreateOutlinedDropDownMenuBackground());
filledDropDownMenuBackground.addState(new int[] {}, getDropDownMaterialShapeDrawable(false));
}
return filledDropDownMenuBackground;
}
private MaterialShapeDrawable getDropDownMaterialShapeDrawable(boolean roundedTopCorners) {
float cornerRadius =
getResources().getDimensionPixelOffset(R.dimen.mtrl_shape_corner_size_small_component);
float topCornerRadius = roundedTopCorners ? cornerRadius : 0;
float elevation =
editText instanceof MaterialAutoCompleteTextView
? ((MaterialAutoCompleteTextView) editText).getPopupElevation()
: getResources().getDimensionPixelOffset(
R.dimen.m3_comp_outlined_autocomplete_menu_container_elevation);
int verticalPadding =
getResources()
.getDimensionPixelOffset(R.dimen.mtrl_exposed_dropdown_menu_popup_vertical_padding);
ShapeAppearanceModel shapeAppearanceModel =
ShapeAppearanceModel.builder()
.setTopLeftCornerSize(topCornerRadius)
.setTopRightCornerSize(topCornerRadius)
.setBottomLeftCornerSize(cornerRadius)
.setBottomRightCornerSize(cornerRadius)
.build();
ColorStateList dropDownBackgroundTint = null;
if (editText instanceof MaterialAutoCompleteTextView) {
MaterialAutoCompleteTextView materialAutoCompleteTextView =
((MaterialAutoCompleteTextView) editText);
dropDownBackgroundTint = materialAutoCompleteTextView.getDropDownBackgroundTintList();
}
MaterialShapeDrawable popupDrawable =
MaterialShapeDrawable.createWithElevationOverlay(
getContext(), elevation, dropDownBackgroundTint);
popupDrawable.setShapeAppearanceModel(shapeAppearanceModel);
popupDrawable.setPadding(0, verticalPadding, 0, verticalPadding);
return popupDrawable;
}
private void updateBoxCollapsedPaddingTop() {
if (boxBackgroundMode == BOX_BACKGROUND_FILLED) {
if (MaterialResources.isFontScaleAtLeast2_0(getContext())) {
boxCollapsedPaddingTopPx =
getResources()
.getDimensionPixelSize(R.dimen.material_font_2_0_box_collapsed_padding_top);
} else if (MaterialResources.isFontScaleAtLeast1_3(getContext())) {
boxCollapsedPaddingTopPx =
getResources()
.getDimensionPixelSize(R.dimen.material_font_1_3_box_collapsed_padding_top);
}
}
}