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Diffstat (limited to 'src/com/android/customization/widget/PageIndicator.java')
-rw-r--r--src/com/android/customization/widget/PageIndicator.java295
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diff --git a/src/com/android/customization/widget/PageIndicator.java b/src/com/android/customization/widget/PageIndicator.java
deleted file mode 100644
index dd636ad9..00000000
--- a/src/com/android/customization/widget/PageIndicator.java
+++ /dev/null
@@ -1,295 +0,0 @@
-/*
- * Copyright (C) 2018 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.android.customization.widget;
-
-import android.content.Context;
-import android.content.res.ColorStateList;
-import android.content.res.TypedArray;
-import android.graphics.drawable.Animatable2;
-import android.graphics.drawable.AnimatedVectorDrawable;
-import android.graphics.drawable.Drawable;
-import android.util.AttributeSet;
-import android.util.Log;
-import android.view.View;
-import android.view.ViewGroup;
-import android.widget.ImageView;
-
-import com.android.wallpaper.R;
-
-import java.lang.reflect.InvocationTargetException;
-import java.lang.reflect.Method;
-import java.util.ArrayList;
-
-/**
- * Page indicator widget, based on QS's page indicator:
- *
- * Based on QS PageIndicator
- * Path: frameworks/base/packages/SystemUI/src/com/android/systemui/qs/PageIndicator.java
- */
-public class PageIndicator extends ViewGroup {
-
- private static final String TAG = "PageIndicator";
- private static final boolean DEBUG = false;
-
- // The size of a single dot in relation to the whole animation.
- private static final float SINGLE_SCALE = .4f;
-
- static final float MINOR_ALPHA = .42f;
-
- private final ArrayList<Integer> mQueuedPositions = new ArrayList<>();
-
- private final int mPageIndicatorWidth;
- private final int mPageIndicatorHeight;
- private final int mPageDotWidth;
-
- private int mPosition = -1;
- private boolean mAnimating;
-
- private static Method sMethodForceAnimationOnUI = null;
- private final Animatable2.AnimationCallback mAnimationCallback =
- new Animatable2.AnimationCallback() {
-
- @Override
- public void onAnimationEnd(Drawable drawable) {
- super.onAnimationEnd(drawable);
- if (drawable instanceof AnimatedVectorDrawable) {
- ((AnimatedVectorDrawable) drawable).unregisterAnimationCallback(
- mAnimationCallback);
- }
- if (DEBUG) {
- Log.d(TAG, "onAnimationEnd - queued: " + mQueuedPositions.size());
- }
- mAnimating = false;
- if (mQueuedPositions.size() != 0) {
- setPosition(mQueuedPositions.remove(0));
- }
- }
- };
-
-
- public PageIndicator(Context context, AttributeSet attrs) {
- super(context, attrs);
- mPageIndicatorWidth =
- (int) context.getResources().getDimension(R.dimen.preview_indicator_width);
- mPageIndicatorHeight =
- (int) context.getResources().getDimension(R.dimen.preview_indicator_height);
- mPageDotWidth = (int) (mPageIndicatorWidth * SINGLE_SCALE);
- }
-
- public void setNumPages(int numPages) {
- setVisibility(numPages > 1 ? View.VISIBLE : View.INVISIBLE);
- if (mAnimating) {
- Log.w(TAG, "setNumPages during animation");
- }
- while (numPages < getChildCount()) {
- removeViewAt(getChildCount() - 1);
- }
- TypedArray array = getContext().obtainStyledAttributes(
- new int[]{android.R.attr.colorControlActivated});
- int color = array.getColor(0, 0);
- array.recycle();
- while (numPages > getChildCount()) {
- ImageView v = new ImageView(getContext());
- v.setImageResource(R.drawable.minor_a_b);
- v.setImageTintList(ColorStateList.valueOf(color));
- addView(v, new LayoutParams(mPageIndicatorWidth, mPageIndicatorHeight));
- }
- // Refresh state.
- setIndex(mPosition >> 1);
- }
-
- public void setLocation(float location) {
- int index = (int) location;
- setContentDescription(getContext().getString(R.string.accessibility_preview_pager,
- (index + 1), getChildCount()));
- int position = index << 1 | ((location != index) ? 1 : 0);
- if (DEBUG) {
- Log.d(TAG, "setLocation " + location + " " + index + " " + position);
- }
-
- int lastPosition = mPosition;
- if (mQueuedPositions.size() != 0) {
- lastPosition = mQueuedPositions.get(mQueuedPositions.size() - 1);
- }
- if (DEBUG) {
- Log.d(TAG, position + " " + lastPosition);
- }
- if (position == lastPosition) return;
- if (mAnimating) {
- if (DEBUG) {
- Log.d(TAG, "Queueing transition to " + Integer.toHexString(position));
- }
- mQueuedPositions.add(position);
- return;
- }
-
- setPosition(position);
- }
-
- private void setPosition(int position) {
- if (mPosition >= 0 && Math.abs(mPosition - position) == 1) {
- animate(mPosition, position);
- } else {
- if (DEBUG) {
- Log.d(TAG, "Skipping animation " + mPosition
- + " " + position);
- }
- setIndex(position >> 1);
- }
- mPosition = position;
- }
-
- private void setIndex(int index) {
- final int N = getChildCount();
- for (int i = 0; i < N; i++) {
- ImageView v = (ImageView) getChildAt(i);
- // Clear out any animation positioning.
- v.setTranslationX(0);
- v.setImageResource(R.drawable.major_a_b);
- v.setAlpha(getAlpha(i == index));
- }
- }
-
- private void animate(int from, int to) {
- if (DEBUG) {
- Log.d(TAG, "Animating from " + Integer.toHexString(from) + " to "
- + Integer.toHexString(to));
- }
- int fromIndex = from >> 1;
- int toIndex = to >> 1;
-
- // Set the position of everything, then we will manually control the two views involved
- // in the animation.
- setIndex(fromIndex);
-
- boolean fromTransition = (from & 1) != 0;
- boolean isAState = fromTransition ? from > to : from < to;
- int firstIndex = Math.min(fromIndex, toIndex);
- int secondIndex = Math.max(fromIndex, toIndex);
- if (secondIndex == firstIndex) {
- secondIndex++;
- }
- ImageView first = (ImageView) getChildAt(firstIndex);
- ImageView second = (ImageView) getChildAt(secondIndex);
- if (first == null || second == null) {
- // may happen during reInflation or other weird cases
- return;
- }
- // Lay the two views on top of each other.
- second.setTranslationX(first.getX() - second.getX());
-
- playAnimation(first, getTransition(fromTransition, isAState, false));
- first.setAlpha(getAlpha(false));
-
- playAnimation(second, getTransition(fromTransition, isAState, true));
- second.setAlpha(getAlpha(true));
-
- mAnimating = true;
- }
-
- private float getAlpha(boolean isMajor) {
- return isMajor ? 1 : MINOR_ALPHA;
- }
-
- private void playAnimation(ImageView imageView, int res) {
- Drawable drawable = getContext().getDrawable(res);
- if (!(drawable instanceof AnimatedVectorDrawable)) {
- return;
- }
- final AnimatedVectorDrawable avd = (AnimatedVectorDrawable) drawable;
- imageView.setImageDrawable(avd);
- try {
- forceAnimationOnUI(avd);
- } catch (NoSuchMethodException | IllegalAccessException | InvocationTargetException e) {
- Log.e(TAG, "Catch an exception in playAnimation", e);
- }
- avd.registerAnimationCallback(mAnimationCallback);
- avd.start();
- }
-
- private void forceAnimationOnUI(AnimatedVectorDrawable avd)
- throws NoSuchMethodException, InvocationTargetException, IllegalAccessException {
- if (sMethodForceAnimationOnUI == null) {
- sMethodForceAnimationOnUI = AnimatedVectorDrawable.class.getMethod(
- "forceAnimationOnUI");
- }
- if (sMethodForceAnimationOnUI != null) {
- sMethodForceAnimationOnUI.invoke(avd);
- }
- }
-
- private int getTransition(boolean fromB, boolean isMajorAState, boolean isMajor) {
- if (isMajor) {
- if (fromB) {
- if (isMajorAState) {
- return R.drawable.major_b_a_animation;
- } else {
- return R.drawable.major_b_c_animation;
- }
- } else {
- if (isMajorAState) {
- return R.drawable.major_a_b_animation;
- } else {
- return R.drawable.major_c_b_animation;
- }
- }
- } else {
- if (fromB) {
- if (isMajorAState) {
- return R.drawable.minor_b_c_animation;
- } else {
- return R.drawable.minor_b_a_animation;
- }
- } else {
- if (isMajorAState) {
- return R.drawable.minor_c_b_animation;
- } else {
- return R.drawable.minor_a_b_animation;
- }
- }
- }
- }
-
- @Override
- protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
- final int N = getChildCount();
- if (N == 0) {
- super.onMeasure(widthMeasureSpec, heightMeasureSpec);
- return;
- }
- final int widthChildSpec = MeasureSpec.makeMeasureSpec(mPageIndicatorWidth,
- MeasureSpec.EXACTLY);
- final int heightChildSpec = MeasureSpec.makeMeasureSpec(mPageIndicatorHeight,
- MeasureSpec.EXACTLY);
- for (int i = 0; i < N; i++) {
- getChildAt(i).measure(widthChildSpec, heightChildSpec);
- }
- int width = (mPageIndicatorWidth - mPageDotWidth) * (N - 1) + mPageDotWidth;
- setMeasuredDimension(width, mPageIndicatorHeight);
- }
-
- @Override
- protected void onLayout(boolean changed, int l, int t, int r, int b) {
- final int N = getChildCount();
- if (N == 0) {
- return;
- }
- for (int i = 0; i < N; i++) {
- int left = (mPageIndicatorWidth - mPageDotWidth) * i;
- getChildAt(i).layout(left, 0, mPageIndicatorWidth + left, mPageIndicatorHeight);
- }
- }
-}
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-06 06:02:22 +0000