FloatingActionButton.java revision 097e80a3c5518c6bf2e9f3f9b55ed9f4b5cc37e8
19840efe3dbdc7026521da8576574c55120782f6cChris Banes/* 29840efe3dbdc7026521da8576574c55120782f6cChris Banes * Copyright (C) 2015 The Android Open Source Project 39840efe3dbdc7026521da8576574c55120782f6cChris Banes * 49840efe3dbdc7026521da8576574c55120782f6cChris Banes * Licensed under the Apache License, Version 2.0 (the "License"); 59840efe3dbdc7026521da8576574c55120782f6cChris Banes * you may not use this file except in compliance with the License. 69840efe3dbdc7026521da8576574c55120782f6cChris Banes * You may obtain a copy of the License at 79840efe3dbdc7026521da8576574c55120782f6cChris Banes * 89840efe3dbdc7026521da8576574c55120782f6cChris Banes * http://www.apache.org/licenses/LICENSE-2.0 99840efe3dbdc7026521da8576574c55120782f6cChris Banes * 109840efe3dbdc7026521da8576574c55120782f6cChris Banes * Unless required by applicable law or agreed to in writing, software 119840efe3dbdc7026521da8576574c55120782f6cChris Banes * distributed under the License is distributed on an "AS IS" BASIS, 129840efe3dbdc7026521da8576574c55120782f6cChris Banes * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 139840efe3dbdc7026521da8576574c55120782f6cChris Banes * See the License for the specific language governing permissions and 149840efe3dbdc7026521da8576574c55120782f6cChris Banes * limitations under the License. 159840efe3dbdc7026521da8576574c55120782f6cChris Banes */ 169840efe3dbdc7026521da8576574c55120782f6cChris Banes 179840efe3dbdc7026521da8576574c55120782f6cChris Banespackage android.support.design.widget; 189840efe3dbdc7026521da8576574c55120782f6cChris Banes 199840efe3dbdc7026521da8576574c55120782f6cChris Banesimport android.annotation.TargetApi; 209840efe3dbdc7026521da8576574c55120782f6cChris Banesimport android.content.Context; 219840efe3dbdc7026521da8576574c55120782f6cChris Banesimport android.content.res.ColorStateList; 229840efe3dbdc7026521da8576574c55120782f6cChris Banesimport android.content.res.TypedArray; 239840efe3dbdc7026521da8576574c55120782f6cChris Banesimport android.graphics.PorterDuff; 249840efe3dbdc7026521da8576574c55120782f6cChris Banesimport android.graphics.Rect; 259840efe3dbdc7026521da8576574c55120782f6cChris Banesimport android.graphics.drawable.Drawable; 269840efe3dbdc7026521da8576574c55120782f6cChris Banesimport android.os.Build; 277a13c8489daca7915623dd673df49de2d1a0bf30Chris Banesimport android.support.annotation.ColorInt; 287a13c8489daca7915623dd673df49de2d1a0bf30Chris Banesimport android.support.annotation.NonNull; 299840efe3dbdc7026521da8576574c55120782f6cChris Banesimport android.support.annotation.Nullable; 309840efe3dbdc7026521da8576574c55120782f6cChris Banesimport android.support.design.R; 310ad7ef59b28d8ffafd551d2756b5a8ec47c90682Mark Weiimport android.support.design.widget.FloatingActionButtonImpl.InternalVisibilityChangedListener; 32b7f9224b1495db47eb8fd813b5912250e900770aChris Banesimport android.support.v4.view.ViewCompat; 339840efe3dbdc7026521da8576574c55120782f6cChris Banesimport android.util.AttributeSet; 34097e80a3c5518c6bf2e9f3f9b55ed9f4b5cc37e8Chris Banesimport android.util.Log; 3514d064edb3e4a16a3b90a4a850560177bea1e60dChris Banesimport android.view.View; 363531cb37189bcbd3039056f959e0916dff645d0aChris Banesimport android.widget.ImageButton; 379840efe3dbdc7026521da8576574c55120782f6cChris Banesimport android.widget.ImageView; 389840efe3dbdc7026521da8576574c55120782f6cChris Banes 39a6a508b2296730ca6954aaebcca52a9962a5cb55Chris Banesimport java.util.List; 40b7f9224b1495db47eb8fd813b5912250e900770aChris Banes 419840efe3dbdc7026521da8576574c55120782f6cChris Banes/** 429840efe3dbdc7026521da8576574c55120782f6cChris Banes * Floating action buttons are used for a special type of promoted action. They are distinguished 4314d064edb3e4a16a3b90a4a850560177bea1e60dChris Banes * by a circled icon floating above the UI and have special motion behaviors related to morphing, 449840efe3dbdc7026521da8576574c55120782f6cChris Banes * launching, and the transferring anchor point. 459840efe3dbdc7026521da8576574c55120782f6cChris Banes * 469fb154338a62edc2c57dc036895199d6f1769400Chris Banes * <p>Floating action buttons come in two sizes: the default and the mini. The size can be 479fb154338a62edc2c57dc036895199d6f1769400Chris Banes * controlled with the {@code fabSize} attribute.</p> 489fb154338a62edc2c57dc036895199d6f1769400Chris Banes * 499fb154338a62edc2c57dc036895199d6f1769400Chris Banes * <p>As this class descends from {@link ImageView}, you can control the icon which is displayed 509fb154338a62edc2c57dc036895199d6f1769400Chris Banes * via {@link #setImageDrawable(Drawable)}.</p> 519fb154338a62edc2c57dc036895199d6f1769400Chris Banes * 529fb154338a62edc2c57dc036895199d6f1769400Chris Banes * <p>The background color of this view defaults to the your theme's {@code colorAccent}. If you 539fb154338a62edc2c57dc036895199d6f1769400Chris Banes * wish to change this at runtime then you can do so via 549fb154338a62edc2c57dc036895199d6f1769400Chris Banes * {@link #setBackgroundTintList(ColorStateList)}.</p> 559fb154338a62edc2c57dc036895199d6f1769400Chris Banes * 569fb154338a62edc2c57dc036895199d6f1769400Chris Banes * @attr ref android.support.design.R.styleable#FloatingActionButton_fabSize 579840efe3dbdc7026521da8576574c55120782f6cChris Banes */ 58b7f9224b1495db47eb8fd813b5912250e900770aChris Banes@CoordinatorLayout.DefaultBehavior(FloatingActionButton.Behavior.class) 593531cb37189bcbd3039056f959e0916dff645d0aChris Banespublic class FloatingActionButton extends ImageButton { 609840efe3dbdc7026521da8576574c55120782f6cChris Banes 61097e80a3c5518c6bf2e9f3f9b55ed9f4b5cc37e8Chris Banes private static final String LOG_TAG = "FloatingActionButton"; 62097e80a3c5518c6bf2e9f3f9b55ed9f4b5cc37e8Chris Banes 630ad7ef59b28d8ffafd551d2756b5a8ec47c90682Mark Wei /** 640ad7ef59b28d8ffafd551d2756b5a8ec47c90682Mark Wei * Callback to be invoked when the visibility of a FloatingActionButton changes. 650ad7ef59b28d8ffafd551d2756b5a8ec47c90682Mark Wei */ 660ad7ef59b28d8ffafd551d2756b5a8ec47c90682Mark Wei public abstract static class OnVisibilityChangedListener { 670ad7ef59b28d8ffafd551d2756b5a8ec47c90682Mark Wei /** 680ad7ef59b28d8ffafd551d2756b5a8ec47c90682Mark Wei * Called when a FloatingActionButton has been 690ad7ef59b28d8ffafd551d2756b5a8ec47c90682Mark Wei * {@link #show(OnVisibilityChangedListener) shown}. 700ad7ef59b28d8ffafd551d2756b5a8ec47c90682Mark Wei * 710ad7ef59b28d8ffafd551d2756b5a8ec47c90682Mark Wei * @param fab the FloatingActionButton that was shown. 720ad7ef59b28d8ffafd551d2756b5a8ec47c90682Mark Wei */ 730ad7ef59b28d8ffafd551d2756b5a8ec47c90682Mark Wei public void onShown(FloatingActionButton fab) {} 740ad7ef59b28d8ffafd551d2756b5a8ec47c90682Mark Wei 750ad7ef59b28d8ffafd551d2756b5a8ec47c90682Mark Wei /** 760ad7ef59b28d8ffafd551d2756b5a8ec47c90682Mark Wei * Called when a FloatingActionButton has been 770ad7ef59b28d8ffafd551d2756b5a8ec47c90682Mark Wei * {@link #hide(OnVisibilityChangedListener) hidden}. 780ad7ef59b28d8ffafd551d2756b5a8ec47c90682Mark Wei * 790ad7ef59b28d8ffafd551d2756b5a8ec47c90682Mark Wei * @param fab the FloatingActionButton that was hidden. 800ad7ef59b28d8ffafd551d2756b5a8ec47c90682Mark Wei */ 810ad7ef59b28d8ffafd551d2756b5a8ec47c90682Mark Wei public void onHidden(FloatingActionButton fab) {} 820ad7ef59b28d8ffafd551d2756b5a8ec47c90682Mark Wei } 830ad7ef59b28d8ffafd551d2756b5a8ec47c90682Mark Wei 849840efe3dbdc7026521da8576574c55120782f6cChris Banes // These values must match those in the attrs declaration 859840efe3dbdc7026521da8576574c55120782f6cChris Banes private static final int SIZE_MINI = 1; 869840efe3dbdc7026521da8576574c55120782f6cChris Banes private static final int SIZE_NORMAL = 0; 879840efe3dbdc7026521da8576574c55120782f6cChris Banes 889840efe3dbdc7026521da8576574c55120782f6cChris Banes private ColorStateList mBackgroundTint; 899840efe3dbdc7026521da8576574c55120782f6cChris Banes private PorterDuff.Mode mBackgroundTintMode; 909840efe3dbdc7026521da8576574c55120782f6cChris Banes 91cd78954a2b32d9c22686f12c194fac7e49566cf6Chris Banes private int mBorderWidth; 929840efe3dbdc7026521da8576574c55120782f6cChris Banes private int mRippleColor; 939840efe3dbdc7026521da8576574c55120782f6cChris Banes private int mSize; 949840efe3dbdc7026521da8576574c55120782f6cChris Banes private int mContentPadding; 959840efe3dbdc7026521da8576574c55120782f6cChris Banes 969840efe3dbdc7026521da8576574c55120782f6cChris Banes private final Rect mShadowPadding; 979840efe3dbdc7026521da8576574c55120782f6cChris Banes 989840efe3dbdc7026521da8576574c55120782f6cChris Banes private final FloatingActionButtonImpl mImpl; 999840efe3dbdc7026521da8576574c55120782f6cChris Banes 1009840efe3dbdc7026521da8576574c55120782f6cChris Banes public FloatingActionButton(Context context) { 1019840efe3dbdc7026521da8576574c55120782f6cChris Banes this(context, null); 1029840efe3dbdc7026521da8576574c55120782f6cChris Banes } 1039840efe3dbdc7026521da8576574c55120782f6cChris Banes 1049840efe3dbdc7026521da8576574c55120782f6cChris Banes public FloatingActionButton(Context context, AttributeSet attrs) { 1059840efe3dbdc7026521da8576574c55120782f6cChris Banes this(context, attrs, 0); 1069840efe3dbdc7026521da8576574c55120782f6cChris Banes } 1079840efe3dbdc7026521da8576574c55120782f6cChris Banes 1089840efe3dbdc7026521da8576574c55120782f6cChris Banes public FloatingActionButton(Context context, AttributeSet attrs, int defStyleAttr) { 1099840efe3dbdc7026521da8576574c55120782f6cChris Banes super(context, attrs, defStyleAttr); 1109840efe3dbdc7026521da8576574c55120782f6cChris Banes 111809bb62055ad42b88f3a69308be222801b89fbd9Chris Banes ThemeUtils.checkAppCompatTheme(context); 112809bb62055ad42b88f3a69308be222801b89fbd9Chris Banes 1139840efe3dbdc7026521da8576574c55120782f6cChris Banes mShadowPadding = new Rect(); 1149840efe3dbdc7026521da8576574c55120782f6cChris Banes 1159840efe3dbdc7026521da8576574c55120782f6cChris Banes TypedArray a = context.obtainStyledAttributes(attrs, 1169840efe3dbdc7026521da8576574c55120782f6cChris Banes R.styleable.FloatingActionButton, defStyleAttr, 1179840efe3dbdc7026521da8576574c55120782f6cChris Banes R.style.Widget_Design_FloatingActionButton); 1189840efe3dbdc7026521da8576574c55120782f6cChris Banes mBackgroundTint = a.getColorStateList(R.styleable.FloatingActionButton_backgroundTint); 1199840efe3dbdc7026521da8576574c55120782f6cChris Banes mBackgroundTintMode = parseTintMode(a.getInt( 1209840efe3dbdc7026521da8576574c55120782f6cChris Banes R.styleable.FloatingActionButton_backgroundTintMode, -1), null); 1219840efe3dbdc7026521da8576574c55120782f6cChris Banes mRippleColor = a.getColor(R.styleable.FloatingActionButton_rippleColor, 0); 1229840efe3dbdc7026521da8576574c55120782f6cChris Banes mSize = a.getInt(R.styleable.FloatingActionButton_fabSize, SIZE_NORMAL); 123cd78954a2b32d9c22686f12c194fac7e49566cf6Chris Banes mBorderWidth = a.getDimensionPixelSize(R.styleable.FloatingActionButton_borderWidth, 0); 1249840efe3dbdc7026521da8576574c55120782f6cChris Banes final float elevation = a.getDimension(R.styleable.FloatingActionButton_elevation, 0f); 1259840efe3dbdc7026521da8576574c55120782f6cChris Banes final float pressedTranslationZ = a.getDimension( 1269840efe3dbdc7026521da8576574c55120782f6cChris Banes R.styleable.FloatingActionButton_pressedTranslationZ, 0f); 1279840efe3dbdc7026521da8576574c55120782f6cChris Banes a.recycle(); 1289840efe3dbdc7026521da8576574c55120782f6cChris Banes 1299840efe3dbdc7026521da8576574c55120782f6cChris Banes final ShadowViewDelegate delegate = new ShadowViewDelegate() { 1309840efe3dbdc7026521da8576574c55120782f6cChris Banes @Override 1319840efe3dbdc7026521da8576574c55120782f6cChris Banes public float getRadius() { 1329840efe3dbdc7026521da8576574c55120782f6cChris Banes return getSizeDimension() / 2f; 1339840efe3dbdc7026521da8576574c55120782f6cChris Banes } 1349840efe3dbdc7026521da8576574c55120782f6cChris Banes 1359840efe3dbdc7026521da8576574c55120782f6cChris Banes @Override 1369840efe3dbdc7026521da8576574c55120782f6cChris Banes public void setShadowPadding(int left, int top, int right, int bottom) { 1379840efe3dbdc7026521da8576574c55120782f6cChris Banes mShadowPadding.set(left, top, right, bottom); 1389840efe3dbdc7026521da8576574c55120782f6cChris Banes 1399840efe3dbdc7026521da8576574c55120782f6cChris Banes setPadding(left + mContentPadding, top + mContentPadding, 1409840efe3dbdc7026521da8576574c55120782f6cChris Banes right + mContentPadding, bottom + mContentPadding); 1419840efe3dbdc7026521da8576574c55120782f6cChris Banes } 1429840efe3dbdc7026521da8576574c55120782f6cChris Banes 1439840efe3dbdc7026521da8576574c55120782f6cChris Banes @Override 1449840efe3dbdc7026521da8576574c55120782f6cChris Banes public void setBackgroundDrawable(Drawable background) { 1459840efe3dbdc7026521da8576574c55120782f6cChris Banes FloatingActionButton.super.setBackgroundDrawable(background); 1469840efe3dbdc7026521da8576574c55120782f6cChris Banes } 1479840efe3dbdc7026521da8576574c55120782f6cChris Banes }; 1489840efe3dbdc7026521da8576574c55120782f6cChris Banes 149be48ed9161c09c4b2178ab6dbe28638222809fc7Chris Banes final int sdk = Build.VERSION.SDK_INT; 150be48ed9161c09c4b2178ab6dbe28638222809fc7Chris Banes if (sdk >= 21) { 1519840efe3dbdc7026521da8576574c55120782f6cChris Banes mImpl = new FloatingActionButtonLollipop(this, delegate); 1529ec922c215ed95a4bbd8bd7940e81dcfe6926893Chris Banes } else if (sdk >= 14) { 1539ec922c215ed95a4bbd8bd7940e81dcfe6926893Chris Banes mImpl = new FloatingActionButtonIcs(this, delegate); 1549840efe3dbdc7026521da8576574c55120782f6cChris Banes } else { 1559840efe3dbdc7026521da8576574c55120782f6cChris Banes mImpl = new FloatingActionButtonEclairMr1(this, delegate); 1569840efe3dbdc7026521da8576574c55120782f6cChris Banes } 1579840efe3dbdc7026521da8576574c55120782f6cChris Banes 158a577676a64e5353b8ec927117151aa6be84adf66Chris Banes final int maxContentSize = (int) getResources().getDimension( 159a577676a64e5353b8ec927117151aa6be84adf66Chris Banes R.dimen.design_fab_content_size); 1609840efe3dbdc7026521da8576574c55120782f6cChris Banes mContentPadding = (getSizeDimension() - maxContentSize) / 2; 1619840efe3dbdc7026521da8576574c55120782f6cChris Banes 162097e80a3c5518c6bf2e9f3f9b55ed9f4b5cc37e8Chris Banes mImpl.setBackgroundDrawable(mBackgroundTint, mBackgroundTintMode, 163097e80a3c5518c6bf2e9f3f9b55ed9f4b5cc37e8Chris Banes mRippleColor, mBorderWidth); 1649840efe3dbdc7026521da8576574c55120782f6cChris Banes mImpl.setElevation(elevation); 1659840efe3dbdc7026521da8576574c55120782f6cChris Banes mImpl.setPressedTranslationZ(pressedTranslationZ); 1669840efe3dbdc7026521da8576574c55120782f6cChris Banes } 1679840efe3dbdc7026521da8576574c55120782f6cChris Banes 1689840efe3dbdc7026521da8576574c55120782f6cChris Banes @Override 1699840efe3dbdc7026521da8576574c55120782f6cChris Banes protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { 1709840efe3dbdc7026521da8576574c55120782f6cChris Banes final int preferredSize = getSizeDimension(); 1719840efe3dbdc7026521da8576574c55120782f6cChris Banes 1729840efe3dbdc7026521da8576574c55120782f6cChris Banes final int w = resolveAdjustedSize(preferredSize, widthMeasureSpec); 1739840efe3dbdc7026521da8576574c55120782f6cChris Banes final int h = resolveAdjustedSize(preferredSize, heightMeasureSpec); 1749840efe3dbdc7026521da8576574c55120782f6cChris Banes 1759840efe3dbdc7026521da8576574c55120782f6cChris Banes // As we want to stay circular, we set both dimensions to be the 1769840efe3dbdc7026521da8576574c55120782f6cChris Banes // smallest resolved dimension 1779840efe3dbdc7026521da8576574c55120782f6cChris Banes final int d = Math.min(w, h); 1789840efe3dbdc7026521da8576574c55120782f6cChris Banes 1799840efe3dbdc7026521da8576574c55120782f6cChris Banes // We add the shadow's padding to the measured dimension 1809840efe3dbdc7026521da8576574c55120782f6cChris Banes setMeasuredDimension( 1819840efe3dbdc7026521da8576574c55120782f6cChris Banes d + mShadowPadding.left + mShadowPadding.right, 1829840efe3dbdc7026521da8576574c55120782f6cChris Banes d + mShadowPadding.top + mShadowPadding.bottom); 1839840efe3dbdc7026521da8576574c55120782f6cChris Banes } 1849840efe3dbdc7026521da8576574c55120782f6cChris Banes 1859840efe3dbdc7026521da8576574c55120782f6cChris Banes /** 1869840efe3dbdc7026521da8576574c55120782f6cChris Banes * Set the ripple color for this {@link FloatingActionButton}. 1879840efe3dbdc7026521da8576574c55120782f6cChris Banes * <p> 1889840efe3dbdc7026521da8576574c55120782f6cChris Banes * When running on devices with KitKat or below, we draw a fill rather than a ripple. 1899840efe3dbdc7026521da8576574c55120782f6cChris Banes * 1909840efe3dbdc7026521da8576574c55120782f6cChris Banes * @param color ARGB color to use for the ripple. 1919840efe3dbdc7026521da8576574c55120782f6cChris Banes */ 1927a13c8489daca7915623dd673df49de2d1a0bf30Chris Banes public void setRippleColor(@ColorInt int color) { 1939840efe3dbdc7026521da8576574c55120782f6cChris Banes if (mRippleColor != color) { 1949840efe3dbdc7026521da8576574c55120782f6cChris Banes mRippleColor = color; 1959840efe3dbdc7026521da8576574c55120782f6cChris Banes mImpl.setRippleColor(color); 1969840efe3dbdc7026521da8576574c55120782f6cChris Banes } 1979840efe3dbdc7026521da8576574c55120782f6cChris Banes } 1989840efe3dbdc7026521da8576574c55120782f6cChris Banes 1999840efe3dbdc7026521da8576574c55120782f6cChris Banes /** 2009840efe3dbdc7026521da8576574c55120782f6cChris Banes * Return the tint applied to the background drawable, if specified. 2019840efe3dbdc7026521da8576574c55120782f6cChris Banes * 2029840efe3dbdc7026521da8576574c55120782f6cChris Banes * @return the tint applied to the background drawable 2039840efe3dbdc7026521da8576574c55120782f6cChris Banes * @see #setBackgroundTintList(ColorStateList) 2049840efe3dbdc7026521da8576574c55120782f6cChris Banes */ 2059840efe3dbdc7026521da8576574c55120782f6cChris Banes @Nullable 2069840efe3dbdc7026521da8576574c55120782f6cChris Banes @Override 2079840efe3dbdc7026521da8576574c55120782f6cChris Banes public ColorStateList getBackgroundTintList() { 2089840efe3dbdc7026521da8576574c55120782f6cChris Banes return mBackgroundTint; 2099840efe3dbdc7026521da8576574c55120782f6cChris Banes } 2109840efe3dbdc7026521da8576574c55120782f6cChris Banes 2119840efe3dbdc7026521da8576574c55120782f6cChris Banes /** 2129840efe3dbdc7026521da8576574c55120782f6cChris Banes * Applies a tint to the background drawable. Does not modify the current tint 2139840efe3dbdc7026521da8576574c55120782f6cChris Banes * mode, which is {@link PorterDuff.Mode#SRC_IN} by default. 2149840efe3dbdc7026521da8576574c55120782f6cChris Banes * 2159840efe3dbdc7026521da8576574c55120782f6cChris Banes * @param tint the tint to apply, may be {@code null} to clear tint 2169840efe3dbdc7026521da8576574c55120782f6cChris Banes */ 2179840efe3dbdc7026521da8576574c55120782f6cChris Banes public void setBackgroundTintList(@Nullable ColorStateList tint) { 2187a13c8489daca7915623dd673df49de2d1a0bf30Chris Banes if (mBackgroundTint != tint) { 2197a13c8489daca7915623dd673df49de2d1a0bf30Chris Banes mBackgroundTint = tint; 2207a13c8489daca7915623dd673df49de2d1a0bf30Chris Banes mImpl.setBackgroundTintList(tint); 2217a13c8489daca7915623dd673df49de2d1a0bf30Chris Banes } 2229840efe3dbdc7026521da8576574c55120782f6cChris Banes } 2239840efe3dbdc7026521da8576574c55120782f6cChris Banes 2249840efe3dbdc7026521da8576574c55120782f6cChris Banes 2259840efe3dbdc7026521da8576574c55120782f6cChris Banes /** 2269840efe3dbdc7026521da8576574c55120782f6cChris Banes * Return the blending mode used to apply the tint to the background 2279840efe3dbdc7026521da8576574c55120782f6cChris Banes * drawable, if specified. 2289840efe3dbdc7026521da8576574c55120782f6cChris Banes * 2299840efe3dbdc7026521da8576574c55120782f6cChris Banes * @return the blending mode used to apply the tint to the background 2309840efe3dbdc7026521da8576574c55120782f6cChris Banes * drawable 2319840efe3dbdc7026521da8576574c55120782f6cChris Banes * @see #setBackgroundTintMode(PorterDuff.Mode) 2329840efe3dbdc7026521da8576574c55120782f6cChris Banes */ 2339840efe3dbdc7026521da8576574c55120782f6cChris Banes @Nullable 2349840efe3dbdc7026521da8576574c55120782f6cChris Banes @Override 2359840efe3dbdc7026521da8576574c55120782f6cChris Banes public PorterDuff.Mode getBackgroundTintMode() { 2369840efe3dbdc7026521da8576574c55120782f6cChris Banes return mBackgroundTintMode; 2379840efe3dbdc7026521da8576574c55120782f6cChris Banes } 2389840efe3dbdc7026521da8576574c55120782f6cChris Banes 2399840efe3dbdc7026521da8576574c55120782f6cChris Banes /** 2409840efe3dbdc7026521da8576574c55120782f6cChris Banes * Specifies the blending mode used to apply the tint specified by 2419840efe3dbdc7026521da8576574c55120782f6cChris Banes * {@link #setBackgroundTintList(ColorStateList)}} to the background 2429840efe3dbdc7026521da8576574c55120782f6cChris Banes * drawable. The default mode is {@link PorterDuff.Mode#SRC_IN}. 2439840efe3dbdc7026521da8576574c55120782f6cChris Banes * 2449840efe3dbdc7026521da8576574c55120782f6cChris Banes * @param tintMode the blending mode used to apply the tint, may be 2459840efe3dbdc7026521da8576574c55120782f6cChris Banes * {@code null} to clear tint 2469840efe3dbdc7026521da8576574c55120782f6cChris Banes */ 2479840efe3dbdc7026521da8576574c55120782f6cChris Banes public void setBackgroundTintMode(@Nullable PorterDuff.Mode tintMode) { 2487a13c8489daca7915623dd673df49de2d1a0bf30Chris Banes if (mBackgroundTintMode != tintMode) { 2497a13c8489daca7915623dd673df49de2d1a0bf30Chris Banes mBackgroundTintMode = tintMode; 2507a13c8489daca7915623dd673df49de2d1a0bf30Chris Banes mImpl.setBackgroundTintMode(tintMode); 2517a13c8489daca7915623dd673df49de2d1a0bf30Chris Banes } 2529840efe3dbdc7026521da8576574c55120782f6cChris Banes } 2539840efe3dbdc7026521da8576574c55120782f6cChris Banes 2549840efe3dbdc7026521da8576574c55120782f6cChris Banes @Override 255097e80a3c5518c6bf2e9f3f9b55ed9f4b5cc37e8Chris Banes public void setBackgroundDrawable(Drawable background) { 256097e80a3c5518c6bf2e9f3f9b55ed9f4b5cc37e8Chris Banes Log.i(LOG_TAG, "Setting a custom background is not supported."); 257097e80a3c5518c6bf2e9f3f9b55ed9f4b5cc37e8Chris Banes } 258097e80a3c5518c6bf2e9f3f9b55ed9f4b5cc37e8Chris Banes 259097e80a3c5518c6bf2e9f3f9b55ed9f4b5cc37e8Chris Banes @Override 260097e80a3c5518c6bf2e9f3f9b55ed9f4b5cc37e8Chris Banes public void setBackgroundResource(int resid) { 261097e80a3c5518c6bf2e9f3f9b55ed9f4b5cc37e8Chris Banes Log.i(LOG_TAG, "Setting a custom background is not supported."); 262097e80a3c5518c6bf2e9f3f9b55ed9f4b5cc37e8Chris Banes } 263097e80a3c5518c6bf2e9f3f9b55ed9f4b5cc37e8Chris Banes 264097e80a3c5518c6bf2e9f3f9b55ed9f4b5cc37e8Chris Banes @Override 265097e80a3c5518c6bf2e9f3f9b55ed9f4b5cc37e8Chris Banes public void setBackgroundColor(int color) { 266097e80a3c5518c6bf2e9f3f9b55ed9f4b5cc37e8Chris Banes Log.i(LOG_TAG, "Setting a custom background is not supported."); 267be48ed9161c09c4b2178ab6dbe28638222809fc7Chris Banes } 268be48ed9161c09c4b2178ab6dbe28638222809fc7Chris Banes 269be48ed9161c09c4b2178ab6dbe28638222809fc7Chris Banes /** 270be48ed9161c09c4b2178ab6dbe28638222809fc7Chris Banes * Shows the button. 2718c05e5f52fbc790b745e768398d9e69d6b9d9ee1Chris Banes * <p>This method will animate the button show if the view has already been laid out.</p> 272be48ed9161c09c4b2178ab6dbe28638222809fc7Chris Banes */ 273be48ed9161c09c4b2178ab6dbe28638222809fc7Chris Banes public void show() { 2740ad7ef59b28d8ffafd551d2756b5a8ec47c90682Mark Wei mImpl.show(null); 2750ad7ef59b28d8ffafd551d2756b5a8ec47c90682Mark Wei } 2760ad7ef59b28d8ffafd551d2756b5a8ec47c90682Mark Wei 2770ad7ef59b28d8ffafd551d2756b5a8ec47c90682Mark Wei /** 2780ad7ef59b28d8ffafd551d2756b5a8ec47c90682Mark Wei * Shows the button. 2798c05e5f52fbc790b745e768398d9e69d6b9d9ee1Chris Banes * <p>This method will animate the button show if the view has already been laid out.</p> 2800ad7ef59b28d8ffafd551d2756b5a8ec47c90682Mark Wei * 2810ad7ef59b28d8ffafd551d2756b5a8ec47c90682Mark Wei * @param listener the listener to notify when this view is shown 2820ad7ef59b28d8ffafd551d2756b5a8ec47c90682Mark Wei */ 2830ad7ef59b28d8ffafd551d2756b5a8ec47c90682Mark Wei public void show(@Nullable final OnVisibilityChangedListener listener) { 2840ad7ef59b28d8ffafd551d2756b5a8ec47c90682Mark Wei mImpl.show(wrapOnVisibilityChangedListener(listener)); 285be48ed9161c09c4b2178ab6dbe28638222809fc7Chris Banes } 286be48ed9161c09c4b2178ab6dbe28638222809fc7Chris Banes 287be48ed9161c09c4b2178ab6dbe28638222809fc7Chris Banes /** 288be48ed9161c09c4b2178ab6dbe28638222809fc7Chris Banes * Hides the button. 289be48ed9161c09c4b2178ab6dbe28638222809fc7Chris Banes * <p>This method will animate the button hide if the view has already been laid out.</p> 290be48ed9161c09c4b2178ab6dbe28638222809fc7Chris Banes */ 291be48ed9161c09c4b2178ab6dbe28638222809fc7Chris Banes public void hide() { 2920ad7ef59b28d8ffafd551d2756b5a8ec47c90682Mark Wei mImpl.hide(null); 2930ad7ef59b28d8ffafd551d2756b5a8ec47c90682Mark Wei } 2940ad7ef59b28d8ffafd551d2756b5a8ec47c90682Mark Wei 2950ad7ef59b28d8ffafd551d2756b5a8ec47c90682Mark Wei /** 2960ad7ef59b28d8ffafd551d2756b5a8ec47c90682Mark Wei * Hides the button. 2970ad7ef59b28d8ffafd551d2756b5a8ec47c90682Mark Wei * <p>This method will animate the button hide if the view has already been laid out.</p> 2980ad7ef59b28d8ffafd551d2756b5a8ec47c90682Mark Wei * 2990ad7ef59b28d8ffafd551d2756b5a8ec47c90682Mark Wei * @param listener the listener to notify when this view is hidden 3000ad7ef59b28d8ffafd551d2756b5a8ec47c90682Mark Wei */ 3010ad7ef59b28d8ffafd551d2756b5a8ec47c90682Mark Wei public void hide(@Nullable OnVisibilityChangedListener listener) { 3020ad7ef59b28d8ffafd551d2756b5a8ec47c90682Mark Wei mImpl.hide(wrapOnVisibilityChangedListener(listener)); 3030ad7ef59b28d8ffafd551d2756b5a8ec47c90682Mark Wei } 3040ad7ef59b28d8ffafd551d2756b5a8ec47c90682Mark Wei 3050ad7ef59b28d8ffafd551d2756b5a8ec47c90682Mark Wei @Nullable 3060ad7ef59b28d8ffafd551d2756b5a8ec47c90682Mark Wei private InternalVisibilityChangedListener wrapOnVisibilityChangedListener( 3070ad7ef59b28d8ffafd551d2756b5a8ec47c90682Mark Wei @Nullable final OnVisibilityChangedListener listener) { 3080ad7ef59b28d8ffafd551d2756b5a8ec47c90682Mark Wei if (listener == null) { 3090ad7ef59b28d8ffafd551d2756b5a8ec47c90682Mark Wei return null; 3100ad7ef59b28d8ffafd551d2756b5a8ec47c90682Mark Wei } 3110ad7ef59b28d8ffafd551d2756b5a8ec47c90682Mark Wei 3120ad7ef59b28d8ffafd551d2756b5a8ec47c90682Mark Wei return new InternalVisibilityChangedListener() { 3130ad7ef59b28d8ffafd551d2756b5a8ec47c90682Mark Wei @Override 3140ad7ef59b28d8ffafd551d2756b5a8ec47c90682Mark Wei public void onShown() { 3150ad7ef59b28d8ffafd551d2756b5a8ec47c90682Mark Wei listener.onShown(FloatingActionButton.this); 3160ad7ef59b28d8ffafd551d2756b5a8ec47c90682Mark Wei } 3170ad7ef59b28d8ffafd551d2756b5a8ec47c90682Mark Wei 3180ad7ef59b28d8ffafd551d2756b5a8ec47c90682Mark Wei @Override 3190ad7ef59b28d8ffafd551d2756b5a8ec47c90682Mark Wei public void onHidden() { 3200ad7ef59b28d8ffafd551d2756b5a8ec47c90682Mark Wei listener.onHidden(FloatingActionButton.this); 3210ad7ef59b28d8ffafd551d2756b5a8ec47c90682Mark Wei } 3220ad7ef59b28d8ffafd551d2756b5a8ec47c90682Mark Wei }; 3239840efe3dbdc7026521da8576574c55120782f6cChris Banes } 3249840efe3dbdc7026521da8576574c55120782f6cChris Banes 3259840efe3dbdc7026521da8576574c55120782f6cChris Banes final int getSizeDimension() { 3269840efe3dbdc7026521da8576574c55120782f6cChris Banes switch (mSize) { 3279840efe3dbdc7026521da8576574c55120782f6cChris Banes case SIZE_MINI: 328a577676a64e5353b8ec927117151aa6be84adf66Chris Banes return getResources().getDimensionPixelSize(R.dimen.design_fab_size_mini); 3299840efe3dbdc7026521da8576574c55120782f6cChris Banes case SIZE_NORMAL: 3309840efe3dbdc7026521da8576574c55120782f6cChris Banes default: 331a577676a64e5353b8ec927117151aa6be84adf66Chris Banes return getResources().getDimensionPixelSize(R.dimen.design_fab_size_normal); 3329840efe3dbdc7026521da8576574c55120782f6cChris Banes } 3339840efe3dbdc7026521da8576574c55120782f6cChris Banes } 3349840efe3dbdc7026521da8576574c55120782f6cChris Banes 3359840efe3dbdc7026521da8576574c55120782f6cChris Banes @Override 336d9770e12c8ff2d4417700492c6616572be897e93Chris Banes protected void onAttachedToWindow() { 337d9770e12c8ff2d4417700492c6616572be897e93Chris Banes super.onAttachedToWindow(); 338d9770e12c8ff2d4417700492c6616572be897e93Chris Banes mImpl.onAttachedToWindow(); 339d9770e12c8ff2d4417700492c6616572be897e93Chris Banes } 340d9770e12c8ff2d4417700492c6616572be897e93Chris Banes 341d9770e12c8ff2d4417700492c6616572be897e93Chris Banes @Override 342d9770e12c8ff2d4417700492c6616572be897e93Chris Banes protected void onDetachedFromWindow() { 343d9770e12c8ff2d4417700492c6616572be897e93Chris Banes super.onDetachedFromWindow(); 344d9770e12c8ff2d4417700492c6616572be897e93Chris Banes mImpl.onDetachedFromWindow(); 345d9770e12c8ff2d4417700492c6616572be897e93Chris Banes } 346d9770e12c8ff2d4417700492c6616572be897e93Chris Banes 347d9770e12c8ff2d4417700492c6616572be897e93Chris Banes @Override 3489840efe3dbdc7026521da8576574c55120782f6cChris Banes protected void drawableStateChanged() { 3499840efe3dbdc7026521da8576574c55120782f6cChris Banes super.drawableStateChanged(); 3509840efe3dbdc7026521da8576574c55120782f6cChris Banes mImpl.onDrawableStateChanged(getDrawableState()); 3519840efe3dbdc7026521da8576574c55120782f6cChris Banes } 3529840efe3dbdc7026521da8576574c55120782f6cChris Banes 3539840efe3dbdc7026521da8576574c55120782f6cChris Banes @TargetApi(Build.VERSION_CODES.HONEYCOMB) 3549840efe3dbdc7026521da8576574c55120782f6cChris Banes @Override 3559840efe3dbdc7026521da8576574c55120782f6cChris Banes public void jumpDrawablesToCurrentState() { 3569840efe3dbdc7026521da8576574c55120782f6cChris Banes super.jumpDrawablesToCurrentState(); 3579840efe3dbdc7026521da8576574c55120782f6cChris Banes mImpl.jumpDrawableToCurrentState(); 3589840efe3dbdc7026521da8576574c55120782f6cChris Banes } 3599840efe3dbdc7026521da8576574c55120782f6cChris Banes 3609840efe3dbdc7026521da8576574c55120782f6cChris Banes private static int resolveAdjustedSize(int desiredSize, int measureSpec) { 3619840efe3dbdc7026521da8576574c55120782f6cChris Banes int result = desiredSize; 3629840efe3dbdc7026521da8576574c55120782f6cChris Banes int specMode = MeasureSpec.getMode(measureSpec); 3639840efe3dbdc7026521da8576574c55120782f6cChris Banes int specSize = MeasureSpec.getSize(measureSpec); 3649840efe3dbdc7026521da8576574c55120782f6cChris Banes switch (specMode) { 3659840efe3dbdc7026521da8576574c55120782f6cChris Banes case MeasureSpec.UNSPECIFIED: 3669840efe3dbdc7026521da8576574c55120782f6cChris Banes // Parent says we can be as big as we want. Just don't be larger 3679840efe3dbdc7026521da8576574c55120782f6cChris Banes // than max size imposed on ourselves. 3689840efe3dbdc7026521da8576574c55120782f6cChris Banes result = desiredSize; 3699840efe3dbdc7026521da8576574c55120782f6cChris Banes break; 3709840efe3dbdc7026521da8576574c55120782f6cChris Banes case MeasureSpec.AT_MOST: 3719840efe3dbdc7026521da8576574c55120782f6cChris Banes // Parent says we can be as big as we want, up to specSize. 3729840efe3dbdc7026521da8576574c55120782f6cChris Banes // Don't be larger than specSize, and don't be larger than 3739840efe3dbdc7026521da8576574c55120782f6cChris Banes // the max size imposed on ourselves. 3749840efe3dbdc7026521da8576574c55120782f6cChris Banes result = Math.min(desiredSize, specSize); 3759840efe3dbdc7026521da8576574c55120782f6cChris Banes break; 3769840efe3dbdc7026521da8576574c55120782f6cChris Banes case MeasureSpec.EXACTLY: 3779840efe3dbdc7026521da8576574c55120782f6cChris Banes // No choice. Do what we are told. 3789840efe3dbdc7026521da8576574c55120782f6cChris Banes result = specSize; 3799840efe3dbdc7026521da8576574c55120782f6cChris Banes break; 3809840efe3dbdc7026521da8576574c55120782f6cChris Banes } 3819840efe3dbdc7026521da8576574c55120782f6cChris Banes return result; 3829840efe3dbdc7026521da8576574c55120782f6cChris Banes } 3839840efe3dbdc7026521da8576574c55120782f6cChris Banes 3849840efe3dbdc7026521da8576574c55120782f6cChris Banes static PorterDuff.Mode parseTintMode(int value, PorterDuff.Mode defaultMode) { 3859840efe3dbdc7026521da8576574c55120782f6cChris Banes switch (value) { 3869840efe3dbdc7026521da8576574c55120782f6cChris Banes case 3: 3879840efe3dbdc7026521da8576574c55120782f6cChris Banes return PorterDuff.Mode.SRC_OVER; 3889840efe3dbdc7026521da8576574c55120782f6cChris Banes case 5: 3899840efe3dbdc7026521da8576574c55120782f6cChris Banes return PorterDuff.Mode.SRC_IN; 3909840efe3dbdc7026521da8576574c55120782f6cChris Banes case 9: 3919840efe3dbdc7026521da8576574c55120782f6cChris Banes return PorterDuff.Mode.SRC_ATOP; 3929840efe3dbdc7026521da8576574c55120782f6cChris Banes case 14: 3939840efe3dbdc7026521da8576574c55120782f6cChris Banes return PorterDuff.Mode.MULTIPLY; 3949840efe3dbdc7026521da8576574c55120782f6cChris Banes case 15: 3959840efe3dbdc7026521da8576574c55120782f6cChris Banes return PorterDuff.Mode.SCREEN; 3969840efe3dbdc7026521da8576574c55120782f6cChris Banes default: 3979840efe3dbdc7026521da8576574c55120782f6cChris Banes return defaultMode; 3989840efe3dbdc7026521da8576574c55120782f6cChris Banes } 3999840efe3dbdc7026521da8576574c55120782f6cChris Banes } 40014d064edb3e4a16a3b90a4a850560177bea1e60dChris Banes 40114d064edb3e4a16a3b90a4a850560177bea1e60dChris Banes /** 402b7f9224b1495db47eb8fd813b5912250e900770aChris Banes * Behavior designed for use with {@link FloatingActionButton} instances. It's main function 403b7f9224b1495db47eb8fd813b5912250e900770aChris Banes * is to move {@link FloatingActionButton} views so that any displayed {@link Snackbar}s do 404b7f9224b1495db47eb8fd813b5912250e900770aChris Banes * not cover them. 405b7f9224b1495db47eb8fd813b5912250e900770aChris Banes */ 406b7f9224b1495db47eb8fd813b5912250e900770aChris Banes public static class Behavior extends CoordinatorLayout.Behavior<FloatingActionButton> { 407b7f9224b1495db47eb8fd813b5912250e900770aChris Banes // We only support the FAB <> Snackbar shift movement on Honeycomb and above. This is 408b7f9224b1495db47eb8fd813b5912250e900770aChris Banes // because we can use view translation properties which greatly simplifies the code. 409b7f9224b1495db47eb8fd813b5912250e900770aChris Banes private static final boolean SNACKBAR_BEHAVIOR_ENABLED = Build.VERSION.SDK_INT >= 11; 410b7f9224b1495db47eb8fd813b5912250e900770aChris Banes 41118d22257ccfb5cebb3ccd2450736e735ed1fb9bbChris Banes private float mFabTranslationY; 412a6a508b2296730ca6954aaebcca52a9962a5cb55Chris Banes private Rect mTmpRect; 413b7f9224b1495db47eb8fd813b5912250e900770aChris Banes 414b7f9224b1495db47eb8fd813b5912250e900770aChris Banes @Override 415b7f9224b1495db47eb8fd813b5912250e900770aChris Banes public boolean layoutDependsOn(CoordinatorLayout parent, 416be48ed9161c09c4b2178ab6dbe28638222809fc7Chris Banes FloatingActionButton child, View dependency) { 417a6a508b2296730ca6954aaebcca52a9962a5cb55Chris Banes // We're dependent on all SnackbarLayouts (if enabled) 418a6a508b2296730ca6954aaebcca52a9962a5cb55Chris Banes return SNACKBAR_BEHAVIOR_ENABLED && dependency instanceof Snackbar.SnackbarLayout; 419b7f9224b1495db47eb8fd813b5912250e900770aChris Banes } 420b7f9224b1495db47eb8fd813b5912250e900770aChris Banes 421b7f9224b1495db47eb8fd813b5912250e900770aChris Banes @Override 422b7f9224b1495db47eb8fd813b5912250e900770aChris Banes public boolean onDependentViewChanged(CoordinatorLayout parent, FloatingActionButton child, 423a6a508b2296730ca6954aaebcca52a9962a5cb55Chris Banes View dependency) { 424a6a508b2296730ca6954aaebcca52a9962a5cb55Chris Banes if (dependency instanceof Snackbar.SnackbarLayout) { 425a6a508b2296730ca6954aaebcca52a9962a5cb55Chris Banes updateFabTranslationForSnackbar(parent, child, dependency); 426a6a508b2296730ca6954aaebcca52a9962a5cb55Chris Banes } else if (dependency instanceof AppBarLayout) { 427be48ed9161c09c4b2178ab6dbe28638222809fc7Chris Banes // If we're depending on an AppBarLayout we will show/hide it automatically 428be48ed9161c09c4b2178ab6dbe28638222809fc7Chris Banes // if the FAB is anchored to the AppBarLayout 429be48ed9161c09c4b2178ab6dbe28638222809fc7Chris Banes updateFabVisibility(parent, (AppBarLayout) dependency, child); 430be48ed9161c09c4b2178ab6dbe28638222809fc7Chris Banes } 431be48ed9161c09c4b2178ab6dbe28638222809fc7Chris Banes return false; 432be48ed9161c09c4b2178ab6dbe28638222809fc7Chris Banes } 433a6a508b2296730ca6954aaebcca52a9962a5cb55Chris Banes 434be48ed9161c09c4b2178ab6dbe28638222809fc7Chris Banes private boolean updateFabVisibility(CoordinatorLayout parent, 435be48ed9161c09c4b2178ab6dbe28638222809fc7Chris Banes AppBarLayout appBarLayout, FloatingActionButton child) { 436be48ed9161c09c4b2178ab6dbe28638222809fc7Chris Banes final CoordinatorLayout.LayoutParams lp = 437be48ed9161c09c4b2178ab6dbe28638222809fc7Chris Banes (CoordinatorLayout.LayoutParams) child.getLayoutParams(); 438be48ed9161c09c4b2178ab6dbe28638222809fc7Chris Banes if (lp.getAnchorId() != appBarLayout.getId()) { 439be48ed9161c09c4b2178ab6dbe28638222809fc7Chris Banes // The anchor ID doesn't match the dependency, so we won't automatically 440be48ed9161c09c4b2178ab6dbe28638222809fc7Chris Banes // show/hide the FAB 441be48ed9161c09c4b2178ab6dbe28638222809fc7Chris Banes return false; 442be48ed9161c09c4b2178ab6dbe28638222809fc7Chris Banes } 443a6a508b2296730ca6954aaebcca52a9962a5cb55Chris Banes 444be48ed9161c09c4b2178ab6dbe28638222809fc7Chris Banes if (mTmpRect == null) { 445be48ed9161c09c4b2178ab6dbe28638222809fc7Chris Banes mTmpRect = new Rect(); 446a6a508b2296730ca6954aaebcca52a9962a5cb55Chris Banes } 447be48ed9161c09c4b2178ab6dbe28638222809fc7Chris Banes 448be48ed9161c09c4b2178ab6dbe28638222809fc7Chris Banes // First, let's get the visible rect of the dependency 449be48ed9161c09c4b2178ab6dbe28638222809fc7Chris Banes final Rect rect = mTmpRect; 450be48ed9161c09c4b2178ab6dbe28638222809fc7Chris Banes ViewGroupUtils.getDescendantRect(parent, appBarLayout, rect); 451be48ed9161c09c4b2178ab6dbe28638222809fc7Chris Banes 452be48ed9161c09c4b2178ab6dbe28638222809fc7Chris Banes if (rect.bottom <= appBarLayout.getMinimumHeightForVisibleOverlappingContent()) { 453be48ed9161c09c4b2178ab6dbe28638222809fc7Chris Banes // If the anchor's bottom is below the seam, we'll animate our FAB out 454be48ed9161c09c4b2178ab6dbe28638222809fc7Chris Banes child.hide(); 455be48ed9161c09c4b2178ab6dbe28638222809fc7Chris Banes } else { 456be48ed9161c09c4b2178ab6dbe28638222809fc7Chris Banes // Else, we'll animate our FAB back in 457be48ed9161c09c4b2178ab6dbe28638222809fc7Chris Banes child.show(); 458be48ed9161c09c4b2178ab6dbe28638222809fc7Chris Banes } 459be48ed9161c09c4b2178ab6dbe28638222809fc7Chris Banes return true; 460b7f9224b1495db47eb8fd813b5912250e900770aChris Banes } 461b7f9224b1495db47eb8fd813b5912250e900770aChris Banes 462a6a508b2296730ca6954aaebcca52a9962a5cb55Chris Banes private void updateFabTranslationForSnackbar(CoordinatorLayout parent, 463a6a508b2296730ca6954aaebcca52a9962a5cb55Chris Banes FloatingActionButton fab, View snackbar) { 464be48ed9161c09c4b2178ab6dbe28638222809fc7Chris Banes if (fab.getVisibility() != View.VISIBLE) { 465be48ed9161c09c4b2178ab6dbe28638222809fc7Chris Banes return; 466be48ed9161c09c4b2178ab6dbe28638222809fc7Chris Banes } 467be48ed9161c09c4b2178ab6dbe28638222809fc7Chris Banes 46818d22257ccfb5cebb3ccd2450736e735ed1fb9bbChris Banes final float targetTransY = getFabTranslationYForSnackbar(parent, fab); 46918d22257ccfb5cebb3ccd2450736e735ed1fb9bbChris Banes if (mFabTranslationY == targetTransY) { 47018d22257ccfb5cebb3ccd2450736e735ed1fb9bbChris Banes // We're already at (or currently animating to) the target value, return... 47118d22257ccfb5cebb3ccd2450736e735ed1fb9bbChris Banes return; 47218d22257ccfb5cebb3ccd2450736e735ed1fb9bbChris Banes } 47318d22257ccfb5cebb3ccd2450736e735ed1fb9bbChris Banes 47418d22257ccfb5cebb3ccd2450736e735ed1fb9bbChris Banes mFabTranslationY = targetTransY; 47518d22257ccfb5cebb3ccd2450736e735ed1fb9bbChris Banes final float currentTransY = ViewCompat.getTranslationY(fab); 47618d22257ccfb5cebb3ccd2450736e735ed1fb9bbChris Banes final float dy = currentTransY - targetTransY; 47718d22257ccfb5cebb3ccd2450736e735ed1fb9bbChris Banes 47818d22257ccfb5cebb3ccd2450736e735ed1fb9bbChris Banes if (Math.abs(dy) > (fab.getHeight() * 0.667f)) { 47918d22257ccfb5cebb3ccd2450736e735ed1fb9bbChris Banes // If the FAB will be travelling by more than 2/3 of it's height, let's animate 48018d22257ccfb5cebb3ccd2450736e735ed1fb9bbChris Banes // it instead 48118d22257ccfb5cebb3ccd2450736e735ed1fb9bbChris Banes ViewCompat.animate(fab) 48218d22257ccfb5cebb3ccd2450736e735ed1fb9bbChris Banes .translationY(targetTransY) 48318d22257ccfb5cebb3ccd2450736e735ed1fb9bbChris Banes .scaleX(1f) 48418d22257ccfb5cebb3ccd2450736e735ed1fb9bbChris Banes .scaleY(1f) 48518d22257ccfb5cebb3ccd2450736e735ed1fb9bbChris Banes .alpha(1f) 48618d22257ccfb5cebb3ccd2450736e735ed1fb9bbChris Banes .setInterpolator(AnimationUtils.FAST_OUT_SLOW_IN_INTERPOLATOR) 48718d22257ccfb5cebb3ccd2450736e735ed1fb9bbChris Banes .setListener(null); 48818d22257ccfb5cebb3ccd2450736e735ed1fb9bbChris Banes } else { 48918d22257ccfb5cebb3ccd2450736e735ed1fb9bbChris Banes // Make sure that any current animation is cancelled 49018d22257ccfb5cebb3ccd2450736e735ed1fb9bbChris Banes ViewCompat.animate(fab).cancel(); 49118d22257ccfb5cebb3ccd2450736e735ed1fb9bbChris Banes // Now update the translation Y 49218d22257ccfb5cebb3ccd2450736e735ed1fb9bbChris Banes ViewCompat.setTranslationY(fab, targetTransY); 49318d22257ccfb5cebb3ccd2450736e735ed1fb9bbChris Banes } 494b7f9224b1495db47eb8fd813b5912250e900770aChris Banes } 495b7f9224b1495db47eb8fd813b5912250e900770aChris Banes 496a6a508b2296730ca6954aaebcca52a9962a5cb55Chris Banes private float getFabTranslationYForSnackbar(CoordinatorLayout parent, 497a6a508b2296730ca6954aaebcca52a9962a5cb55Chris Banes FloatingActionButton fab) { 498b7f9224b1495db47eb8fd813b5912250e900770aChris Banes float minOffset = 0; 499a6a508b2296730ca6954aaebcca52a9962a5cb55Chris Banes final List<View> dependencies = parent.getDependencies(fab); 500a6a508b2296730ca6954aaebcca52a9962a5cb55Chris Banes for (int i = 0, z = dependencies.size(); i < z; i++) { 501a6a508b2296730ca6954aaebcca52a9962a5cb55Chris Banes final View view = dependencies.get(i); 502a6a508b2296730ca6954aaebcca52a9962a5cb55Chris Banes if (view instanceof Snackbar.SnackbarLayout && parent.doViewsOverlap(fab, view)) { 503a6a508b2296730ca6954aaebcca52a9962a5cb55Chris Banes minOffset = Math.min(minOffset, 504a6a508b2296730ca6954aaebcca52a9962a5cb55Chris Banes ViewCompat.getTranslationY(view) - view.getHeight()); 505b7f9224b1495db47eb8fd813b5912250e900770aChris Banes } 506b7f9224b1495db47eb8fd813b5912250e900770aChris Banes } 507a6a508b2296730ca6954aaebcca52a9962a5cb55Chris Banes 508b7f9224b1495db47eb8fd813b5912250e900770aChris Banes return minOffset; 509b7f9224b1495db47eb8fd813b5912250e900770aChris Banes } 510b7f9224b1495db47eb8fd813b5912250e900770aChris Banes 511e882ef3492de3d2bb687b454e08b870b06d8f4e2Chris Banes @Override 512e882ef3492de3d2bb687b454e08b870b06d8f4e2Chris Banes public boolean onLayoutChild(CoordinatorLayout parent, FloatingActionButton child, 513e882ef3492de3d2bb687b454e08b870b06d8f4e2Chris Banes int layoutDirection) { 514be48ed9161c09c4b2178ab6dbe28638222809fc7Chris Banes // First, lets make sure that the visibility of the FAB is consistent 515be48ed9161c09c4b2178ab6dbe28638222809fc7Chris Banes final List<View> dependencies = parent.getDependencies(child); 516be48ed9161c09c4b2178ab6dbe28638222809fc7Chris Banes for (int i = 0, count = dependencies.size(); i < count; i++) { 517be48ed9161c09c4b2178ab6dbe28638222809fc7Chris Banes final View dependency = dependencies.get(i); 518be48ed9161c09c4b2178ab6dbe28638222809fc7Chris Banes if (dependency instanceof AppBarLayout 519be48ed9161c09c4b2178ab6dbe28638222809fc7Chris Banes && updateFabVisibility(parent, (AppBarLayout) dependency, child)) { 520be48ed9161c09c4b2178ab6dbe28638222809fc7Chris Banes break; 521be48ed9161c09c4b2178ab6dbe28638222809fc7Chris Banes } 522be48ed9161c09c4b2178ab6dbe28638222809fc7Chris Banes } 523be48ed9161c09c4b2178ab6dbe28638222809fc7Chris Banes // Now let the CoordinatorLayout lay out the FAB 524e882ef3492de3d2bb687b454e08b870b06d8f4e2Chris Banes parent.onLayoutChild(child, layoutDirection); 525e882ef3492de3d2bb687b454e08b870b06d8f4e2Chris Banes // Now offset it if needed 526e882ef3492de3d2bb687b454e08b870b06d8f4e2Chris Banes offsetIfNeeded(parent, child); 527e882ef3492de3d2bb687b454e08b870b06d8f4e2Chris Banes return true; 528e882ef3492de3d2bb687b454e08b870b06d8f4e2Chris Banes } 529e882ef3492de3d2bb687b454e08b870b06d8f4e2Chris Banes 530e882ef3492de3d2bb687b454e08b870b06d8f4e2Chris Banes /** 531e882ef3492de3d2bb687b454e08b870b06d8f4e2Chris Banes * Pre-Lollipop we use padding so that the shadow has enough space to be drawn. This method 532e882ef3492de3d2bb687b454e08b870b06d8f4e2Chris Banes * offsets our layout position so that we're positioned correctly if we're on one of 533e882ef3492de3d2bb687b454e08b870b06d8f4e2Chris Banes * our parent's edges. 534e882ef3492de3d2bb687b454e08b870b06d8f4e2Chris Banes */ 535e882ef3492de3d2bb687b454e08b870b06d8f4e2Chris Banes private void offsetIfNeeded(CoordinatorLayout parent, FloatingActionButton fab) { 536e882ef3492de3d2bb687b454e08b870b06d8f4e2Chris Banes final Rect padding = fab.mShadowPadding; 537e882ef3492de3d2bb687b454e08b870b06d8f4e2Chris Banes 538e882ef3492de3d2bb687b454e08b870b06d8f4e2Chris Banes if (padding != null && padding.centerX() > 0 && padding.centerY() > 0) { 539e882ef3492de3d2bb687b454e08b870b06d8f4e2Chris Banes final CoordinatorLayout.LayoutParams lp = 540e882ef3492de3d2bb687b454e08b870b06d8f4e2Chris Banes (CoordinatorLayout.LayoutParams) fab.getLayoutParams(); 541e882ef3492de3d2bb687b454e08b870b06d8f4e2Chris Banes 542e882ef3492de3d2bb687b454e08b870b06d8f4e2Chris Banes int offsetTB = 0, offsetLR = 0; 543e882ef3492de3d2bb687b454e08b870b06d8f4e2Chris Banes 544e882ef3492de3d2bb687b454e08b870b06d8f4e2Chris Banes if (fab.getRight() >= parent.getWidth() - lp.rightMargin) { 545e882ef3492de3d2bb687b454e08b870b06d8f4e2Chris Banes // If we're on the left edge, shift it the right 546e882ef3492de3d2bb687b454e08b870b06d8f4e2Chris Banes offsetLR = padding.right; 547e882ef3492de3d2bb687b454e08b870b06d8f4e2Chris Banes } else if (fab.getLeft() <= lp.leftMargin) { 548e882ef3492de3d2bb687b454e08b870b06d8f4e2Chris Banes // If we're on the left edge, shift it the left 549e882ef3492de3d2bb687b454e08b870b06d8f4e2Chris Banes offsetLR = -padding.left; 550e882ef3492de3d2bb687b454e08b870b06d8f4e2Chris Banes } 551e882ef3492de3d2bb687b454e08b870b06d8f4e2Chris Banes if (fab.getBottom() >= parent.getBottom() - lp.bottomMargin) { 552e882ef3492de3d2bb687b454e08b870b06d8f4e2Chris Banes // If we're on the bottom edge, shift it down 553e882ef3492de3d2bb687b454e08b870b06d8f4e2Chris Banes offsetTB = padding.bottom; 554e882ef3492de3d2bb687b454e08b870b06d8f4e2Chris Banes } else if (fab.getTop() <= lp.topMargin) { 555e882ef3492de3d2bb687b454e08b870b06d8f4e2Chris Banes // If we're on the top edge, shift it up 556e882ef3492de3d2bb687b454e08b870b06d8f4e2Chris Banes offsetTB = -padding.top; 557e882ef3492de3d2bb687b454e08b870b06d8f4e2Chris Banes } 558e882ef3492de3d2bb687b454e08b870b06d8f4e2Chris Banes 559e882ef3492de3d2bb687b454e08b870b06d8f4e2Chris Banes fab.offsetTopAndBottom(offsetTB); 560e882ef3492de3d2bb687b454e08b870b06d8f4e2Chris Banes fab.offsetLeftAndRight(offsetLR); 561e882ef3492de3d2bb687b454e08b870b06d8f4e2Chris Banes } 562e882ef3492de3d2bb687b454e08b870b06d8f4e2Chris Banes } 563b7f9224b1495db47eb8fd813b5912250e900770aChris Banes } 5649840efe3dbdc7026521da8576574c55120782f6cChris Banes} 565