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/*
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* Copyright (C) 2023 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.android.settings.inputmethod;
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import static android.content.Context.LAYOUT_INFLATER_SERVICE;
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import static android.view.WindowManager.LayoutParams.TYPE_SYSTEM_DIALOG;
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import android.app.Activity;
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import android.app.Dialog;
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import android.content.Context;
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import android.graphics.Point;
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import android.os.Bundle;
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import android.view.Display;
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import android.view.LayoutInflater;
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import android.view.View;
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import android.view.ViewGroup;
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import android.view.Window;
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import android.view.WindowManager;
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import android.widget.Button;
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import android.widget.FrameLayout;
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import android.widget.ImageView;
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import androidx.viewpager.widget.PagerAdapter;
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import androidx.viewpager.widget.ViewPager;
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import com.android.settings.R;
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import com.google.android.material.bottomsheet.BottomSheetBehavior;
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import com.google.android.material.bottomsheet.BottomSheetDialogFragment;
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import java.util.ArrayList;
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import java.util.Arrays;
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public class TrackpadGestureDialogFragment extends BottomSheetDialogFragment {
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private Context mContext;
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private LayoutInflater mInflater;
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private View mViewArrowPrevious;
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private View mViewArrowNext;
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private ViewPager mViewPager;
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private ArrayList<View> mPageList;
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private ImageView[] mDotIndicators;
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private View[] mViewPagerItems;
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private Button mButtonStartSkip;
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private Button mButtonStartRestart;
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private Button mButtonEndNext;
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private Button mButtonEndDone;
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private static final int DOT_INDICATOR_SIZE = 12;
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private static final int DOT_INDICATOR_LEFT_PADDING = 6;
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private static final int DOT_INDICATOR_RIGHT_PADDING = 6;
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public TrackpadGestureDialogFragment() {}
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@Override
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public void onAttach(Context context) {
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super.onAttach(context);
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mContext = context;
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}
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@Override
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public void onCreate(Bundle savedInstanceState) {
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super.onCreate(savedInstanceState);
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}
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@Override
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public void onStart() {
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super.onStart();
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final Dialog dialog = getDialog();
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if (dialog == null) {
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return;
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}
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Window window = dialog.getWindow();
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if (window == null) {
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return;
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}
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final Point size = getScreenSize();
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final WindowManager.LayoutParams attributes = window.getAttributes();
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attributes.width = (int) (size.x * 0.75);
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window.setAttributes(attributes);
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}
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@Override
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public Dialog onCreateDialog(final Bundle savedInstanceState) {
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Dialog dialog = super.onCreateDialog(savedInstanceState);
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mInflater = (LayoutInflater) mContext.getSystemService(
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LAYOUT_INFLATER_SERVICE);
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View gestureEducationView = mInflater.inflate(R.layout.trackpad_gesture_preview, null);
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addViewPager(gestureEducationView);
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dialog.setContentView(gestureEducationView);
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Window gestureDialogWindow = dialog.getWindow();
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gestureDialogWindow.setType(TYPE_SYSTEM_DIALOG);
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// Workaround for solve issue about dialog not full expanded when landscape.
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FrameLayout bottomSheet = (FrameLayout)
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dialog.findViewById(com.google.android.material.R.id.design_bottom_sheet);
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bottomSheet.setBackgroundResource(android.R.color.transparent);
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BottomSheetBehavior.from(bottomSheet)
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.setState(BottomSheetBehavior.STATE_EXPANDED);
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return dialog;
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}
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private ArrayList<Integer> getViewPagerResource() {
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return new ArrayList<Integer>(
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Arrays.asList(
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R.layout.gesture_tip1_go_home,
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R.layout.gesture_tip2_go_back,
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R.layout.gesture_tip3_recent_apps,
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R.layout.gesture_tip4_notifications,
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R.layout.gesture_tip5_switch_apps));
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}
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private void addViewPager(View preview) {
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mViewPager = preview.findViewById(R.id.viewpager);
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int viewPagerResourceSize = getViewPagerResource().size();
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mViewPagerItems = new View[viewPagerResourceSize];
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for (int i = 0; i < viewPagerResourceSize; i++) {
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mViewPagerItems[i] =
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mInflater.inflate(getViewPagerResource().get(i), null /* root */);
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}
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mPageList = new ArrayList<View>();
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for (int i = 0; i < mViewPagerItems.length; i++) {
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mPageList.add(mViewPagerItems[i]);
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}
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mViewPager.setAdapter(new GesturePagerAdapter(mPageList));
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mButtonStartRestart = (Button) preview.findViewById(R.id.button_restart);
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mButtonStartRestart.setOnClickListener(v -> {
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final int firstPos = mViewPager.getCurrentItem() - mViewPagerItems.length;
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mViewPager.setCurrentItem(firstPos, true);
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});
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mButtonEndDone = (Button) preview.findViewById(R.id.button_done);
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mButtonEndDone.setOnClickListener(v -> {
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dismiss();
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});
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mButtonStartSkip = (Button) preview.findViewById(R.id.button_skip);
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mButtonStartSkip.setOnClickListener(v -> {
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dismiss();
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});
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mButtonEndNext = (Button) preview.findViewById(R.id.button_next);
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mButtonEndNext.setOnClickListener(v -> {
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final int nextPos = mViewPager.getCurrentItem() + 1;
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mViewPager.setCurrentItem(nextPos, true);
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});
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mViewPager.addOnPageChangeListener(createPageListener());
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final ViewGroup viewGroup = (ViewGroup) preview.findViewById(R.id.viewGroup);
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mDotIndicators = new ImageView[mPageList.size()];
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for (int i = 0; i < mPageList.size(); i++) {
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final ImageView imageView = new ImageView(mContext);
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final ViewGroup.MarginLayoutParams lp =
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new ViewGroup.MarginLayoutParams(DOT_INDICATOR_SIZE, DOT_INDICATOR_SIZE);
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lp.setMargins(DOT_INDICATOR_LEFT_PADDING, 0, DOT_INDICATOR_RIGHT_PADDING, 0);
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imageView.setLayoutParams(lp);
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mDotIndicators[i] = imageView;
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viewGroup.addView(mDotIndicators[i]);
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}
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}
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private static class GesturePagerAdapter extends PagerAdapter {
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private final ArrayList<View> mPageViewList;
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GesturePagerAdapter(ArrayList<View> pageViewList) {
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mPageViewList = pageViewList;
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}
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@Override
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public void destroyItem(ViewGroup container, int position, Object object) {
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if (mPageViewList.get(position) != null) {
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container.removeView(mPageViewList.get(position));
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}
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}
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@Override
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public Object instantiateItem(ViewGroup container, int position) {
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container.addView(mPageViewList.get(position));
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return mPageViewList.get(position);
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}
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@Override
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public int getCount() {
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return mPageViewList.size();
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}
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@Override
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public boolean isViewFromObject(View view, Object object) {
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return object == view;
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}
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}
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private ViewPager.OnPageChangeListener createPageListener() {
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return new ViewPager.OnPageChangeListener() {
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@Override
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public void onPageScrolled(
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int position, float positionOffset, int positionOffsetPixels) {
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if (positionOffset != 0) {
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for (int i = 0; i < mPageList.size(); i++) {
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mViewPagerItems[i].setVisibility(View.VISIBLE);
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}
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} else {
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updateIndicator(position);
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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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@Override
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public void onPageScrollStateChanged(int state) {}
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};
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}
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private void updateIndicator(int position) {
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for (int i = 0; i < mPageList.size(); i++) {
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if (position == i) {
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mDotIndicators[i].setBackgroundResource(
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R.drawable.ic_color_page_indicator_focused);
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mViewPagerItems[i].setVisibility(View.VISIBLE);
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} else {
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mDotIndicators[i].setBackgroundResource(
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R.drawable.ic_color_page_indicator_unfocused);
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mViewPagerItems[i].setVisibility(View.INVISIBLE);
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}
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}
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if (position >= 0 && position < mViewPagerItems.length - 1) {
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mButtonStartSkip.setVisibility(View.VISIBLE);
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mButtonEndNext.setVisibility(View.VISIBLE);
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mButtonStartRestart.setVisibility(View.GONE);
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mButtonEndDone.setVisibility(View.GONE);
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} else {
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mButtonStartSkip.setVisibility(View.GONE);
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mButtonEndNext.setVisibility(View.GONE);
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mButtonStartRestart.setVisibility(View.VISIBLE);
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mButtonEndDone.setVisibility(View.VISIBLE);
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}
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}
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private Point getScreenSize() {
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final Point size = new Point();
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final Activity activity = (Activity) mContext;
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final Display display = activity.getWindowManager().getDefaultDisplay();
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display.getSize(size);
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return size;
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}
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}
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Daniel Huang
Android (Google) Code Review