Java tutorial
/* * 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 jp.tkgktyk.xposed.forcetouchdetector.app.util.fab; import android.animation.Animator; import android.animation.ObjectAnimator; import android.animation.StateListAnimator; import android.annotation.TargetApi; import android.content.res.ColorStateList; import android.graphics.PorterDuff; import android.graphics.drawable.Drawable; import android.graphics.drawable.LayerDrawable; import android.graphics.drawable.RippleDrawable; import android.os.Build; import android.support.v4.graphics.drawable.DrawableCompat; import android.support.v4.view.ViewCompat; import android.view.View; import android.view.animation.AnimationUtils; import android.view.animation.Interpolator; @TargetApi(Build.VERSION_CODES.LOLLIPOP) class FloatingActionButtonLollipop extends FloatingActionButtonHoneycombMr1 { private Drawable mShapeDrawable; private RippleDrawable mRippleDrawable; private Drawable mBorderDrawable; private Interpolator mInterpolator; FloatingActionButtonLollipop(View view, ShadowViewDelegate shadowViewDelegate) { super(view, shadowViewDelegate); if (!view.isInEditMode()) { mInterpolator = AnimationUtils.loadInterpolator(mView.getContext(), android.R.interpolator.fast_out_slow_in); } } @Override void setBackgroundDrawable(Drawable originalBackground, ColorStateList backgroundTint, PorterDuff.Mode backgroundTintMode, int rippleColor, int borderWidth) { // Now we need to tint the original background with the tint mShapeDrawable = DrawableCompat.wrap(originalBackground.mutate()); DrawableCompat.setTintList(mShapeDrawable, backgroundTint); if (backgroundTintMode != null) { DrawableCompat.setTintMode(mShapeDrawable, backgroundTintMode); } final Drawable rippleContent; if (borderWidth > 0) { mBorderDrawable = createBorderDrawable(borderWidth, backgroundTint); rippleContent = new LayerDrawable(new Drawable[] { mBorderDrawable, mShapeDrawable }); } else { mBorderDrawable = null; rippleContent = mShapeDrawable; } mRippleDrawable = new RippleDrawable(ColorStateList.valueOf(rippleColor), rippleContent, null); mShadowViewDelegate.setBackgroundDrawable(mRippleDrawable); mShadowViewDelegate.setShadowPadding(0, 0, 0, 0); } @Override void setBackgroundTintList(ColorStateList tint) { DrawableCompat.setTintList(mShapeDrawable, tint); if (mBorderDrawable != null) { DrawableCompat.setTintList(mBorderDrawable, tint); } } @Override void setBackgroundTintMode(PorterDuff.Mode tintMode) { DrawableCompat.setTintMode(mShapeDrawable, tintMode); } @Override void setRippleColor(int rippleColor) { mRippleDrawable.setColor(ColorStateList.valueOf(rippleColor)); } @Override public void setElevation(float elevation) { ViewCompat.setElevation(mView, elevation); } @Override void setPressedTranslationZ(float translationZ) { StateListAnimator stateListAnimator = new StateListAnimator(); // Animate translationZ to our value when pressed or focused stateListAnimator.addState(PRESSED_ENABLED_STATE_SET, setupAnimator(ObjectAnimator.ofFloat(mView, "translationZ", translationZ))); stateListAnimator.addState(FOCUSED_ENABLED_STATE_SET, setupAnimator(ObjectAnimator.ofFloat(mView, "translationZ", translationZ))); // Animate translationZ to 0 otherwise stateListAnimator.addState(EMPTY_STATE_SET, setupAnimator(ObjectAnimator.ofFloat(mView, "translationZ", 0f))); mView.setStateListAnimator(stateListAnimator); } @Override void onDrawableStateChanged(int[] state) { // no-op } @Override void jumpDrawableToCurrentState() { // no-op } private Animator setupAnimator(Animator animator) { animator.setInterpolator(mInterpolator); return animator; } @Override CircularBorderDrawable newCircularDrawable() { return new CircularBorderDrawableLollipop(); } }