mirror of
https://github.com/material-components/material-components-android.git
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ab2fec6da4
Bazel is happier if Java/Java test roots are named 'java' and 'javatests', and
this will mean that once we create a BUILD file for
android/support/design/{widget,internal}/ we'll no longer need a custom package
specified in our build (which tends to cause build problems that manifest quite
weirdly). This commit doesn't attempt to refactor the build at all yet, and is
just a pure move.
PiperOrigin-RevId: 178060739
303 lines
9.9 KiB
Java
303 lines
9.9 KiB
Java
/*
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* Copyright (C) 2016 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 android.support.design.internal;
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import static android.support.annotation.RestrictTo.Scope.LIBRARY_GROUP;
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import android.content.Context;
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import android.content.res.ColorStateList;
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import android.content.res.Resources;
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import android.graphics.drawable.Drawable;
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import android.support.annotation.NonNull;
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import android.support.annotation.RestrictTo;
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import android.support.design.R;
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import android.support.design.widget.BottomNavigationView;
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import android.support.design.widget.BottomNavigationView.LabelVisibilityMode;
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import android.support.v4.content.ContextCompat;
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import android.support.v4.graphics.drawable.DrawableCompat;
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import android.support.v4.view.PointerIconCompat;
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import android.support.v4.view.ViewCompat;
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import android.support.v7.view.menu.MenuItemImpl;
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import android.support.v7.view.menu.MenuView;
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import android.support.v7.widget.TooltipCompat;
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import android.util.AttributeSet;
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import android.view.Gravity;
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import android.view.LayoutInflater;
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import android.view.View;
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import android.widget.FrameLayout;
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import android.widget.ImageView;
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import android.widget.TextView;
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/** @hide */
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@RestrictTo(LIBRARY_GROUP)
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public class BottomNavigationItemView extends FrameLayout implements MenuView.ItemView {
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public static final int INVALID_ITEM_POSITION = -1;
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private static final int[] CHECKED_STATE_SET = {android.R.attr.state_checked};
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private final int mDefaultMargin;
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private final int mShiftAmount;
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private final float mScaleUpFactor;
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private final float mScaleDownFactor;
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private boolean mShiftingMode;
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private int labelVisibilityMode;
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private ImageView mIcon;
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private final TextView mSmallLabel;
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private final TextView mLargeLabel;
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private int mItemPosition = INVALID_ITEM_POSITION;
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private MenuItemImpl mItemData;
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private ColorStateList mIconTint;
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public BottomNavigationItemView(@NonNull Context context) {
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this(context, null);
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}
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public BottomNavigationItemView(@NonNull Context context, AttributeSet attrs) {
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this(context, attrs, 0);
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}
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public BottomNavigationItemView(Context context, AttributeSet attrs, int defStyleAttr) {
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super(context, attrs, defStyleAttr);
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final Resources res = getResources();
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int inactiveLabelSize = res.getDimensionPixelSize(R.dimen.design_bottom_navigation_text_size);
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int activeLabelSize =
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res.getDimensionPixelSize(R.dimen.design_bottom_navigation_active_text_size);
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mDefaultMargin = res.getDimensionPixelSize(R.dimen.design_bottom_navigation_margin);
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mShiftAmount = inactiveLabelSize - activeLabelSize;
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mScaleUpFactor = 1f * activeLabelSize / inactiveLabelSize;
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mScaleDownFactor = 1f * inactiveLabelSize / activeLabelSize;
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LayoutInflater.from(context).inflate(R.layout.design_bottom_navigation_item, this, true);
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setBackgroundResource(R.drawable.design_bottom_navigation_item_background);
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mIcon = findViewById(R.id.icon);
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mSmallLabel = findViewById(R.id.smallLabel);
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mLargeLabel = findViewById(R.id.largeLabel);
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}
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@Override
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public void initialize(MenuItemImpl itemData, int menuType) {
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mItemData = itemData;
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setCheckable(itemData.isCheckable());
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setChecked(itemData.isChecked());
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setEnabled(itemData.isEnabled());
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setIcon(itemData.getIcon());
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setTitle(itemData.getTitle());
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setId(itemData.getItemId());
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setContentDescription(itemData.getContentDescription());
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TooltipCompat.setTooltipText(this, itemData.getTooltipText());
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setVisibility(itemData.isVisible() ? View.VISIBLE : View.GONE);
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}
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public void setItemPosition(int position) {
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mItemPosition = position;
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}
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public int getItemPosition() {
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return mItemPosition;
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}
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public void setShiftingMode(boolean enabled) {
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if (mShiftingMode != enabled) {
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mShiftingMode = enabled;
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boolean initialized = mItemData != null;
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if (initialized) {
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setChecked(mItemData.isChecked());
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}
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}
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}
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public void setLabelVisibilityMode(@LabelVisibilityMode int mode) {
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if (labelVisibilityMode != mode) {
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labelVisibilityMode = mode;
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boolean initialized = mItemData != null;
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if (initialized) {
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setChecked(mItemData.isChecked());
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}
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}
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}
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@Override
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public MenuItemImpl getItemData() {
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return mItemData;
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}
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@Override
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public void setTitle(CharSequence title) {
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mSmallLabel.setText(title);
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mLargeLabel.setText(title);
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}
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@Override
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public void setCheckable(boolean checkable) {
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refreshDrawableState();
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}
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@Override
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public void setChecked(boolean checked) {
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mLargeLabel.setPivotX(mLargeLabel.getWidth() / 2);
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mLargeLabel.setPivotY(mLargeLabel.getBaseline());
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mSmallLabel.setPivotX(mSmallLabel.getWidth() / 2);
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mSmallLabel.setPivotY(mSmallLabel.getBaseline());
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switch (labelVisibilityMode) {
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case BottomNavigationView.LABEL_VISIBILITY_LEGACY:
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if (mShiftingMode) {
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if (checked) {
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setViewLayoutParams(mIcon, mDefaultMargin, Gravity.CENTER_HORIZONTAL | Gravity.TOP);
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setViewValues(mLargeLabel, 1f, 1f, VISIBLE);
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} else {
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setViewLayoutParams(mIcon, mDefaultMargin, Gravity.CENTER);
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setViewValues(mLargeLabel, 0.5f, 0.5f, INVISIBLE);
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}
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mSmallLabel.setVisibility(INVISIBLE);
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} else {
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if (checked) {
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setViewLayoutParams(
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mIcon, mDefaultMargin + mShiftAmount, Gravity.CENTER_HORIZONTAL | Gravity.TOP);
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setViewValues(mLargeLabel, 1f, 1f, VISIBLE);
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setViewValues(mSmallLabel, mScaleUpFactor, mScaleUpFactor, INVISIBLE);
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} else {
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setViewLayoutParams(mIcon, mDefaultMargin, Gravity.CENTER_HORIZONTAL | Gravity.TOP);
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setViewValues(mLargeLabel, mScaleDownFactor, mScaleDownFactor, INVISIBLE);
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setViewValues(mSmallLabel, 1f, 1f, VISIBLE);
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}
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}
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break;
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case BottomNavigationView.LABEL_VISIBILITY_SELECTED:
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if (checked) {
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setViewLayoutParams(mIcon, mDefaultMargin, Gravity.CENTER_HORIZONTAL | Gravity.TOP);
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setViewValues(mLargeLabel, 1f, 1f, VISIBLE);
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} else {
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setViewLayoutParams(mIcon, mDefaultMargin, Gravity.CENTER);
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setViewValues(mLargeLabel, 0.5f, 0.5f, INVISIBLE);
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}
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mSmallLabel.setVisibility(INVISIBLE);
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break;
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case BottomNavigationView.LABEL_VISIBILITY_LABELED:
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if (checked) {
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setViewLayoutParams(
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mIcon, mDefaultMargin + mShiftAmount, Gravity.CENTER_HORIZONTAL | Gravity.TOP);
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setViewValues(mLargeLabel, 1f, 1f, VISIBLE);
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setViewValues(mSmallLabel, mScaleUpFactor, mScaleUpFactor, INVISIBLE);
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} else {
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setViewLayoutParams(mIcon, mDefaultMargin, Gravity.CENTER_HORIZONTAL | Gravity.TOP);
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setViewValues(mLargeLabel, mScaleDownFactor, mScaleDownFactor, INVISIBLE);
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setViewValues(mSmallLabel, 1f, 1f, VISIBLE);
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}
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break;
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case BottomNavigationView.LABEL_VISIBILITY_UNLABELED:
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setViewLayoutParams(mIcon, mDefaultMargin, Gravity.CENTER);
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mLargeLabel.setVisibility(GONE);
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mSmallLabel.setVisibility(GONE);
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break;
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default:
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break;
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}
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refreshDrawableState();
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}
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private void setViewLayoutParams(@NonNull View view, int topMargin, int gravity) {
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LayoutParams viewParams = (LayoutParams) view.getLayoutParams();
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viewParams.topMargin = topMargin;
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viewParams.gravity = gravity;
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view.setLayoutParams(viewParams);
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}
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private void setViewValues(@NonNull View view, float scaleX, float scaleY, int visibility) {
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view.setScaleX(scaleX);
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view.setScaleY(scaleY);
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view.setVisibility(visibility);
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}
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@Override
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public void setEnabled(boolean enabled) {
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super.setEnabled(enabled);
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mSmallLabel.setEnabled(enabled);
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mLargeLabel.setEnabled(enabled);
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mIcon.setEnabled(enabled);
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if (enabled) {
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ViewCompat.setPointerIcon(
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this, PointerIconCompat.getSystemIcon(getContext(), PointerIconCompat.TYPE_HAND));
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} else {
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ViewCompat.setPointerIcon(this, null);
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}
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}
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@Override
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public int[] onCreateDrawableState(final int extraSpace) {
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final int[] drawableState = super.onCreateDrawableState(extraSpace + 1);
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if (mItemData != null && mItemData.isCheckable() && mItemData.isChecked()) {
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mergeDrawableStates(drawableState, CHECKED_STATE_SET);
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}
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return drawableState;
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}
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@Override
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public void setShortcut(boolean showShortcut, char shortcutKey) {}
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@Override
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public void setIcon(Drawable icon) {
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if (icon != null) {
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Drawable.ConstantState state = icon.getConstantState();
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icon = DrawableCompat.wrap(state == null ? icon : state.newDrawable()).mutate();
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DrawableCompat.setTintList(icon, mIconTint);
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}
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mIcon.setImageDrawable(icon);
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}
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@Override
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public boolean prefersCondensedTitle() {
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return false;
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}
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@Override
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public boolean showsIcon() {
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return true;
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}
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public void setIconTintList(ColorStateList tint) {
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mIconTint = tint;
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if (mItemData != null) {
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// Update the icon so that the tint takes effect
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setIcon(mItemData.getIcon());
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}
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}
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public void setTextColor(ColorStateList color) {
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mSmallLabel.setTextColor(color);
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mLargeLabel.setTextColor(color);
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}
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public void setItemBackground(int background) {
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Drawable backgroundDrawable =
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background == 0 ? null : ContextCompat.getDrawable(getContext(), background);
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ViewCompat.setBackground(this, backgroundDrawable);
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}
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}
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