зеркало из https://github.com/mozilla/gecko-dev.git
Bug 1293790 - Import CirclePageIndicator from ViewPagerIndicator library r=sebastian
We only require the CirclePageIndicator, hence I've only imported that portion of the library. The two resource files have been trimmed to only include values that are relevant to the CirclepageIndicator. MozReview-Commit-ID: EPyIf7OJHpe --HG-- extra : rebase_source : b0a0fac13b619add96ec9d89281f5cec2ca6d51c
This commit is contained in:
Andrzej Hunt
Родитель
aab7c8b4f0
Коммит
0c77ca2b74
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@ -0,0 +1,559 @@
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/*
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* Copyright (C) 2011 Patrik Akerfeldt
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* Copyright (C) 2011 Jake Wharton
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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 org.mozilla.gecko.home.activitystream.topsites;
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import android.content.Context;
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import android.content.res.Resources;
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import android.content.res.TypedArray;
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import android.graphics.Canvas;
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import android.graphics.Paint;
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import android.graphics.Paint.Style;
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import android.graphics.drawable.Drawable;
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import android.os.Parcel;
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import android.os.Parcelable;
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import android.support.v4.view.MotionEventCompat;
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import android.support.v4.view.ViewConfigurationCompat;
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import android.support.v4.view.ViewPager;
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import android.util.AttributeSet;
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import android.view.MotionEvent;
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import android.view.View;
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import android.view.ViewConfiguration;
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import org.mozilla.gecko.R;
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import static android.graphics.Paint.ANTI_ALIAS_FLAG;
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import static android.widget.LinearLayout.HORIZONTAL;
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import static android.widget.LinearLayout.VERTICAL;
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/**
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* Draws circles (one for each view). The current view position is filled and
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* others are only stroked.
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*
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* This file was imported from Jake Wharton's ViewPagerIndicator library:
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* https://github.com/JakeWharton/ViewPagerIndicator
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* It was modified to not extend the PageIndicator interface (as we only use one single Indicator)
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* implementation, and has had some minor appearance related modifications added alter.
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*/
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public class CirclePageIndicator
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extends View
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implements ViewPager.OnPageChangeListener {
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private static final int INVALID_POINTER = -1;
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private float mRadius;
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private final Paint mPaintPageFill = new Paint(ANTI_ALIAS_FLAG);
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private final Paint mPaintStroke = new Paint(ANTI_ALIAS_FLAG);
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private final Paint mPaintFill = new Paint(ANTI_ALIAS_FLAG);
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private ViewPager mViewPager;
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private ViewPager.OnPageChangeListener mListener;
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private int mCurrentPage;
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private int mSnapPage;
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private float mPageOffset;
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private int mScrollState;
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private int mOrientation;
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private boolean mCentered;
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private boolean mSnap;
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private int mTouchSlop;
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private float mLastMotionX = -1;
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private int mActivePointerId = INVALID_POINTER;
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private boolean mIsDragging;
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public CirclePageIndicator(Context context) {
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this(context, null);
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}
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public CirclePageIndicator(Context context, AttributeSet attrs) {
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this(context, attrs, R.attr.vpiCirclePageIndicatorStyle);
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}
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public CirclePageIndicator(Context context, AttributeSet attrs, int defStyle) {
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super(context, attrs, defStyle);
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if (isInEditMode()) return;
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//Load defaults from resources
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final Resources res = getResources();
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final int defaultPageColor = res.getColor(R.color.default_circle_indicator_page_color);
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final int defaultFillColor = res.getColor(R.color.default_circle_indicator_fill_color);
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final int defaultOrientation = res.getInteger(R.integer.default_circle_indicator_orientation);
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final int defaultStrokeColor = res.getColor(R.color.default_circle_indicator_stroke_color);
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final float defaultStrokeWidth = res.getDimension(R.dimen.default_circle_indicator_stroke_width);
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final float defaultRadius = res.getDimension(R.dimen.default_circle_indicator_radius);
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final boolean defaultCentered = res.getBoolean(R.bool.default_circle_indicator_centered);
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final boolean defaultSnap = res.getBoolean(R.bool.default_circle_indicator_snap);
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//Retrieve styles attributes
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TypedArray a = context.obtainStyledAttributes(attrs, R.styleable.CirclePageIndicator, defStyle, 0);
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mCentered = a.getBoolean(R.styleable.CirclePageIndicator_centered, defaultCentered);
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mOrientation = a.getInt(R.styleable.CirclePageIndicator_android_orientation, defaultOrientation);
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mPaintPageFill.setStyle(Style.FILL);
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mPaintPageFill.setColor(a.getColor(R.styleable.CirclePageIndicator_pageColor, defaultPageColor));
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mPaintStroke.setStyle(Style.STROKE);
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mPaintStroke.setColor(a.getColor(R.styleable.CirclePageIndicator_strokeColor, defaultStrokeColor));
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mPaintStroke.setStrokeWidth(a.getDimension(R.styleable.CirclePageIndicator_strokeWidth, defaultStrokeWidth));
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mPaintFill.setStyle(Style.FILL);
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mPaintFill.setColor(a.getColor(R.styleable.CirclePageIndicator_fillColor, defaultFillColor));
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mRadius = a.getDimension(R.styleable.CirclePageIndicator_radius, defaultRadius);
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mSnap = a.getBoolean(R.styleable.CirclePageIndicator_snap, defaultSnap);
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Drawable background = a.getDrawable(R.styleable.CirclePageIndicator_android_background);
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if (background != null) {
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setBackgroundDrawable(background);
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}
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a.recycle();
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final ViewConfiguration configuration = ViewConfiguration.get(context);
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mTouchSlop = ViewConfigurationCompat.getScaledPagingTouchSlop(configuration);
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}
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public void setCentered(boolean centered) {
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mCentered = centered;
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invalidate();
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}
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public boolean isCentered() {
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return mCentered;
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}
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public void setPageColor(int pageColor) {
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mPaintPageFill.setColor(pageColor);
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invalidate();
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}
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public int getPageColor() {
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return mPaintPageFill.getColor();
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}
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public void setFillColor(int fillColor) {
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mPaintFill.setColor(fillColor);
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invalidate();
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}
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public int getFillColor() {
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return mPaintFill.getColor();
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}
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public void setOrientation(int orientation) {
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switch (orientation) {
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case HORIZONTAL:
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case VERTICAL:
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mOrientation = orientation;
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requestLayout();
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break;
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default:
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throw new IllegalArgumentException("Orientation must be either HORIZONTAL or VERTICAL.");
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}
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}
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public int getOrientation() {
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return mOrientation;
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}
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public void setStrokeColor(int strokeColor) {
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mPaintStroke.setColor(strokeColor);
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invalidate();
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}
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public int getStrokeColor() {
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return mPaintStroke.getColor();
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}
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public void setStrokeWidth(float strokeWidth) {
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mPaintStroke.setStrokeWidth(strokeWidth);
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invalidate();
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}
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public float getStrokeWidth() {
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return mPaintStroke.getStrokeWidth();
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}
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public void setRadius(float radius) {
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mRadius = radius;
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invalidate();
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}
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public float getRadius() {
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return mRadius;
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}
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public void setSnap(boolean snap) {
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mSnap = snap;
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invalidate();
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}
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public boolean isSnap() {
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return mSnap;
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}
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@Override
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protected void onDraw(Canvas canvas) {
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super.onDraw(canvas);
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if (mViewPager == null) {
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return;
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}
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final int count = mViewPager.getAdapter().getCount();
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if (count == 0) {
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return;
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}
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if (mCurrentPage >= count) {
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setCurrentItem(count - 1);
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return;
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}
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int longSize;
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int longPaddingBefore;
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int longPaddingAfter;
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int shortPaddingBefore;
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if (mOrientation == HORIZONTAL) {
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longSize = getWidth();
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longPaddingBefore = getPaddingLeft();
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longPaddingAfter = getPaddingRight();
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shortPaddingBefore = getPaddingTop();
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} else {
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longSize = getHeight();
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longPaddingBefore = getPaddingTop();
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longPaddingAfter = getPaddingBottom();
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shortPaddingBefore = getPaddingLeft();
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}
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final float threeRadius = mRadius * 3;
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final float shortOffset = shortPaddingBefore + mRadius;
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float longOffset = longPaddingBefore + mRadius;
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if (mCentered) {
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longOffset += ((longSize - longPaddingBefore - longPaddingAfter) / 2.0f) - ((count * threeRadius) / 2.0f);
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}
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float dX;
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float dY;
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float pageFillRadius = mRadius;
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if (mPaintStroke.getStrokeWidth() > 0) {
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pageFillRadius -= mPaintStroke.getStrokeWidth() / 2.0f;
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}
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//Draw stroked circles
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for (int iLoop = 0; iLoop < count; iLoop++) {
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float drawLong = longOffset + (iLoop * threeRadius);
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if (mOrientation == HORIZONTAL) {
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dX = drawLong;
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dY = shortOffset;
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} else {
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dX = shortOffset;
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dY = drawLong;
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}
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// Only paint fill if not completely transparent
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if (mPaintPageFill.getAlpha() > 0) {
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canvas.drawCircle(dX, dY, pageFillRadius, mPaintPageFill);
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}
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// Only paint stroke if a stroke width was non-zero
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if (pageFillRadius != mRadius) {
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canvas.drawCircle(dX, dY, mRadius, mPaintStroke);
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}
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}
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//Draw the filled circle according to the current scroll
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float cx = (mSnap ? mSnapPage : mCurrentPage) * threeRadius;
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if (!mSnap) {
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cx += mPageOffset * threeRadius;
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}
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if (mOrientation == HORIZONTAL) {
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dX = longOffset + cx;
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dY = shortOffset;
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} else {
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dX = shortOffset;
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dY = longOffset + cx;
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}
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canvas.drawCircle(dX, dY, mRadius, mPaintFill);
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}
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public boolean onTouchEvent(android.view.MotionEvent ev) {
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if (super.onTouchEvent(ev)) {
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return true;
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}
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if ((mViewPager == null) || (mViewPager.getAdapter().getCount() == 0)) {
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return false;
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}
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final int action = ev.getAction() & MotionEventCompat.ACTION_MASK;
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switch (action) {
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case MotionEvent.ACTION_DOWN:
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mActivePointerId = MotionEventCompat.getPointerId(ev, 0);
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mLastMotionX = ev.getX();
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break;
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case MotionEvent.ACTION_MOVE: {
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final int activePointerIndex = MotionEventCompat.findPointerIndex(ev, mActivePointerId);
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final float x = MotionEventCompat.getX(ev, activePointerIndex);
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final float deltaX = x - mLastMotionX;
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if (!mIsDragging) {
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if (Math.abs(deltaX) > mTouchSlop) {
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mIsDragging = true;
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}
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}
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if (mIsDragging) {
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mLastMotionX = x;
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if (mViewPager.isFakeDragging() || mViewPager.beginFakeDrag()) {
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mViewPager.fakeDragBy(deltaX);
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}
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}
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break;
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}
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case MotionEvent.ACTION_CANCEL:
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case MotionEvent.ACTION_UP:
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if (!mIsDragging) {
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final int count = mViewPager.getAdapter().getCount();
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final int width = getWidth();
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final float halfWidth = width / 2f;
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final float sixthWidth = width / 6f;
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if ((mCurrentPage > 0) && (ev.getX() < halfWidth - sixthWidth)) {
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if (action != MotionEvent.ACTION_CANCEL) {
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mViewPager.setCurrentItem(mCurrentPage - 1);
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}
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return true;
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} else if ((mCurrentPage < count - 1) && (ev.getX() > halfWidth + sixthWidth)) {
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if (action != MotionEvent.ACTION_CANCEL) {
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mViewPager.setCurrentItem(mCurrentPage + 1);
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}
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return true;
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}
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}
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mIsDragging = false;
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mActivePointerId = INVALID_POINTER;
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if (mViewPager.isFakeDragging()) mViewPager.endFakeDrag();
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break;
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case MotionEventCompat.ACTION_POINTER_DOWN: {
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final int index = MotionEventCompat.getActionIndex(ev);
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mLastMotionX = MotionEventCompat.getX(ev, index);
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mActivePointerId = MotionEventCompat.getPointerId(ev, index);
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break;
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}
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case MotionEventCompat.ACTION_POINTER_UP:
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final int pointerIndex = MotionEventCompat.getActionIndex(ev);
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final int pointerId = MotionEventCompat.getPointerId(ev, pointerIndex);
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if (pointerId == mActivePointerId) {
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final int newPointerIndex = pointerIndex == 0 ? 1 : 0;
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mActivePointerId = MotionEventCompat.getPointerId(ev, newPointerIndex);
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}
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mLastMotionX = MotionEventCompat.getX(ev, MotionEventCompat.findPointerIndex(ev, mActivePointerId));
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break;
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}
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return true;
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}
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public void setViewPager(ViewPager view) {
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if (mViewPager == view) {
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return;
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}
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if (mViewPager != null) {
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mViewPager.setOnPageChangeListener(null);
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}
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if (view.getAdapter() == null) {
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throw new IllegalStateException("ViewPager does not have adapter instance.");
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}
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mViewPager = view;
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mViewPager.setOnPageChangeListener(this);
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invalidate();
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}
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public void setViewPager(ViewPager view, int initialPosition) {
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setViewPager(view);
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setCurrentItem(initialPosition);
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}
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public void setCurrentItem(int item) {
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if (mViewPager == null) {
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throw new IllegalStateException("ViewPager has not been bound.");
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}
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mViewPager.setCurrentItem(item);
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mCurrentPage = item;
|
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invalidate();
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}
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public void notifyDataSetChanged() {
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invalidate();
|
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}
|
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@Override
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public void onPageScrollStateChanged(int state) {
|
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mScrollState = state;
|
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|
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if (mListener != null) {
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mListener.onPageScrollStateChanged(state);
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}
|
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}
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public void onPageScrolled(int position, float positionOffset, int positionOffsetPixels) {
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mCurrentPage = position;
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mPageOffset = positionOffset;
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invalidate();
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if (mListener != null) {
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mListener.onPageScrolled(position, positionOffset, positionOffsetPixels);
|
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}
|
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}
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|
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@Override
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public void onPageSelected(int position) {
|
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if (mSnap || mScrollState == ViewPager.SCROLL_STATE_IDLE) {
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mCurrentPage = position;
|
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mSnapPage = position;
|
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invalidate();
|
||||
}
|
||||
|
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if (mListener != null) {
|
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mListener.onPageSelected(position);
|
||||
}
|
||||
}
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|
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public void setOnPageChangeListener(ViewPager.OnPageChangeListener listener) {
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mListener = listener;
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}
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/*
|
||||
* (non-Javadoc)
|
||||
*
|
||||
* @see android.view.View#onMeasure(int, int)
|
||||
*/
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||||
@Override
|
||||
protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
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||||
if (mOrientation == HORIZONTAL) {
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setMeasuredDimension(measureLong(widthMeasureSpec), measureShort(heightMeasureSpec));
|
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} else {
|
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setMeasuredDimension(measureShort(widthMeasureSpec), measureLong(heightMeasureSpec));
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Determines the width of this view
|
||||
*
|
||||
* @param measureSpec
|
||||
* A measureSpec packed into an int
|
||||
* @return The width of the view, honoring constraints from measureSpec
|
||||
*/
|
||||
private int measureLong(int measureSpec) {
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int result;
|
||||
int specMode = MeasureSpec.getMode(measureSpec);
|
||||
int specSize = MeasureSpec.getSize(measureSpec);
|
||||
|
||||
if ((specMode == MeasureSpec.EXACTLY) || (mViewPager == null)) {
|
||||
//We were told how big to be
|
||||
result = specSize;
|
||||
} else {
|
||||
//Calculate the width according the views count
|
||||
final int count = mViewPager.getAdapter().getCount();
|
||||
result = (int)(getPaddingLeft() + getPaddingRight()
|
||||
+ (count * 2 * mRadius) + (count - 1) * mRadius + 1);
|
||||
//Respect AT_MOST value if that was what is called for by measureSpec
|
||||
if (specMode == MeasureSpec.AT_MOST) {
|
||||
result = Math.min(result, specSize);
|
||||
}
|
||||
}
|
||||
return result;
|
||||
}
|
||||
|
||||
/**
|
||||
* Determines the height of this view
|
||||
*
|
||||
* @param measureSpec
|
||||
* A measureSpec packed into an int
|
||||
* @return The height of the view, honoring constraints from measureSpec
|
||||
*/
|
||||
private int measureShort(int measureSpec) {
|
||||
int result;
|
||||
int specMode = MeasureSpec.getMode(measureSpec);
|
||||
int specSize = MeasureSpec.getSize(measureSpec);
|
||||
|
||||
if (specMode == MeasureSpec.EXACTLY) {
|
||||
//We were told how big to be
|
||||
result = specSize;
|
||||
} else {
|
||||
//Measure the height
|
||||
result = (int)(2 * mRadius + getPaddingTop() + getPaddingBottom() + 1);
|
||||
//Respect AT_MOST value if that was what is called for by measureSpec
|
||||
if (specMode == MeasureSpec.AT_MOST) {
|
||||
result = Math.min(result, specSize);
|
||||
}
|
||||
}
|
||||
return result;
|
||||
}
|
||||
|
||||
@Override
|
||||
public void onRestoreInstanceState(Parcelable state) {
|
||||
SavedState savedState = (SavedState)state;
|
||||
super.onRestoreInstanceState(savedState.getSuperState());
|
||||
mCurrentPage = savedState.currentPage;
|
||||
mSnapPage = savedState.currentPage;
|
||||
requestLayout();
|
||||
}
|
||||
|
||||
@Override
|
||||
public Parcelable onSaveInstanceState() {
|
||||
Parcelable superState = super.onSaveInstanceState();
|
||||
SavedState savedState = new SavedState(superState);
|
||||
savedState.currentPage = mCurrentPage;
|
||||
return savedState;
|
||||
}
|
||||
|
||||
static class SavedState extends BaseSavedState {
|
||||
int currentPage;
|
||||
|
||||
public SavedState(Parcelable superState) {
|
||||
super(superState);
|
||||
}
|
||||
|
||||
private SavedState(Parcel in) {
|
||||
super(in);
|
||||
currentPage = in.readInt();
|
||||
}
|
||||
|
||||
@Override
|
||||
public void writeToParcel(Parcel dest, int flags) {
|
||||
super.writeToParcel(dest, flags);
|
||||
dest.writeInt(currentPage);
|
||||
}
|
||||
|
||||
@SuppressWarnings("UnusedDeclaration")
|
||||
public static final Parcelable.Creator<SavedState> CREATOR = new Parcelable.Creator<SavedState>() {
|
||||
@Override
|
||||
public SavedState createFromParcel(Parcel in) {
|
||||
return new SavedState(in);
|
||||
}
|
||||
|
||||
@Override
|
||||
public SavedState[] newArray(int size) {
|
||||
return new SavedState[size];
|
||||
}
|
||||
};
|
||||
}
|
||||
}
|
||||
|
|
@ -433,6 +433,7 @@ gbjar.sources += ['java/org/mozilla/gecko/' + x for x in [
|
|||
'home/activitystream/ActivityStream.java',
|
||||
'home/activitystream/StreamItem.java',
|
||||
'home/activitystream/StreamRecyclerAdapter.java',
|
||||
'home/activitystream/topsites/CirclePageIndicator.java',
|
||||
'home/activitystream/topsites/TopSitesCard.java',
|
||||
'home/activitystream/topsites/TopSitesPage.java',
|
||||
'home/activitystream/topsites/TopSitesPageAdapter.java',
|
||||
|
|
|
|||
|
|
@ -0,0 +1,59 @@
|
|||
<?xml version="1.0" encoding="utf-8"?>
|
||||
<!-- Copyright (C) 2012 Jake Wharton
|
||||
Copyright (C) 2011 Patrik Åkerfeldt
|
||||
|
||||
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.
|
||||
-->
|
||||
|
||||
<resources>
|
||||
<declare-styleable name="ViewPagerIndicator">
|
||||
<!-- Style of the circle indicator. -->
|
||||
<attr name="vpiCirclePageIndicatorStyle" format="reference"/>
|
||||
<!-- Style of the icon indicator's views. -->
|
||||
<attr name="vpiIconPageIndicatorStyle" format="reference"/>
|
||||
<!-- Style of the line indicator. -->
|
||||
<attr name="vpiLinePageIndicatorStyle" format="reference"/>
|
||||
<!-- Style of the title indicator. -->
|
||||
<attr name="vpiTitlePageIndicatorStyle" format="reference"/>
|
||||
<!-- Style of the tab indicator's tabs. -->
|
||||
<attr name="vpiTabPageIndicatorStyle" format="reference"/>
|
||||
<!-- Style of the underline indicator. -->
|
||||
<attr name="vpiUnderlinePageIndicatorStyle" format="reference"/>
|
||||
</declare-styleable>
|
||||
|
||||
<attr name="centered" format="boolean" />
|
||||
<attr name="selectedColor" format="color" />
|
||||
<attr name="strokeWidth" format="dimension" />
|
||||
<attr name="unselectedColor" format="color" />
|
||||
|
||||
<declare-styleable name="CirclePageIndicator">
|
||||
<!-- Whether or not the indicators should be centered. -->
|
||||
<attr name="centered" />
|
||||
<!-- Color of the filled circle that represents the current page. -->
|
||||
<attr name="fillColor" format="color" />
|
||||
<!-- Color of the filled circles that represents pages. -->
|
||||
<attr name="pageColor" format="color" />
|
||||
<!-- Orientation of the indicator. -->
|
||||
<attr name="android:orientation"/>
|
||||
<!-- Radius of the circles. This is also the spacing between circles. -->
|
||||
<attr name="radius" format="dimension" />
|
||||
<!-- Whether or not the selected indicator snaps to the circles. -->
|
||||
<attr name="snap" format="boolean" />
|
||||
<!-- Color of the open circles. -->
|
||||
<attr name="strokeColor" format="color" />
|
||||
<!-- Width of the stroke used to draw the circles. -->
|
||||
<attr name="strokeWidth" />
|
||||
<!-- View background -->
|
||||
<attr name="android:background"/>
|
||||
</declare-styleable>
|
||||
</resources>
|
||||
|
|
@ -0,0 +1,26 @@
|
|||
<?xml version="1.0" encoding="utf-8"?>
|
||||
<!-- Copyright (C) 2012 Jake Wharton
|
||||
|
||||
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.
|
||||
-->
|
||||
|
||||
<resources>
|
||||
<bool name="default_circle_indicator_centered">true</bool>
|
||||
<color name="default_circle_indicator_fill_color">#FFFFFFFF</color>
|
||||
<color name="default_circle_indicator_page_color">#00000000</color>
|
||||
<integer name="default_circle_indicator_orientation">0</integer>
|
||||
<dimen name="default_circle_indicator_radius">3dp</dimen>
|
||||
<bool name="default_circle_indicator_snap">false</bool>
|
||||
<color name="default_circle_indicator_stroke_color">#FFDDDDDD</color>
|
||||
<dimen name="default_circle_indicator_stroke_width">1dp</dimen>
|
||||
</resources>
|
||||
Загрузка…
Ссылка в новой задаче