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shirajishiraji
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Added test cases for OnPageChangeListener
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‎AndroidAnnotations/androidannotations-core/androidannotations-test/src/main/java/org/androidannotations/test/PageChangeListenerActivity.java‎

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/**
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* Copyright (C) 2010-2015 eBusiness Information, Excilys Group
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*
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* Licensed under the Apache License, Version 2.0 (the "License"); you may not
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* use this file except in compliance with the License. You may obtain a copy of
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* 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, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations under
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* the License.
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*/
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package org.androidannotations.test;
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import org.androidannotations.annotations.EActivity;
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import org.androidannotations.annotations.PageScrollStateChanged;
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import org.androidannotations.annotations.PageScrolled;
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import org.androidannotations.annotations.PageSelected;
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import android.app.Activity;
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import android.support.v4.view.ViewPager;
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@EActivity(R.layout.viewpagers)
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public class PageChangeListenerActivity extends Activity {
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public ViewPager viewPager = null;
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public int position = 0;
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public float positionOffset = 0f;
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public int positionOffsetPixels = 0;
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public int state = 0;
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@PageScrolled(R.id.viewPager1)
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public void pageScrolled(ViewPager v, int p, float pOffset, int pOffsetPixels) {
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viewPager = v;
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position = p;
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positionOffset = pOffset;
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positionOffsetPixels = pOffsetPixels;
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}
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@PageScrollStateChanged(R.id.viewPager1)
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public void pageScrollStateChanged(ViewPager v, int s) {
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viewPager = v;
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state = s;
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}
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@PageSelected(R.id.viewPager1)
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public void pageSelected(ViewPager v, int p) {
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viewPager = v;
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position = p;
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}
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@PageSelected(R.id.viewPager2)
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public void pageSelected2() {
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}
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@PageScrolled(R.id.viewPager2)
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public void pageScrolled2() {
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}
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@PageScrollStateChanged(R.id.viewPager2)
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public void pageScrollStateChanged2() {
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}
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@PageScrollStateChanged(R.id.viewPager3)
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public void pageScrollStateChanged3(int s, ViewPager v) {
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viewPager = v;
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state = s;
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}
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@PageSelected(R.id.viewPager3)
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public void pageSelected3(int p, ViewPager v) {
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viewPager = v;
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position = p;
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}
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@PageScrolled(R.id.viewPager3)
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public void pageScrolled3(int p) {
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position = p;
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}
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@PageScrolled(R.id.viewPager4)
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public void pageScrolled4(float f, int p) {
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positionOffset = f;
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positionOffsetPixels = p;
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}
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}

‎AndroidAnnotations/androidannotations-core/androidannotations-test/src/main/res/layout/viewpagers.xml‎

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<?xml version="1.0" encoding="utf-8"?>
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<!--
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Copyright (C) 2010-2015 eBusiness Information, Excilys Group
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Licensed under the Apache License, Version 2.0 (the "License"); you may not
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use this file except in compliance with the License. You may obtain a copy of
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the License at
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http://www.apache.org/licenses/LICENSE-2.0
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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, WITHOUT
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WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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License for the specific language governing permissions and limitations under
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the License.
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-->
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<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
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android:layout_width="fill_parent"
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android:layout_height="fill_parent"
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android:orientation="vertical">
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<android.support.v4.view.ViewPager
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android:id="@+id/viewPager1"
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android:layout_width="fill_parent"
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android:layout_height="wrap_content"/>
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<android.support.v4.view.ViewPager
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android:id="@+id/viewPager2"
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android:layout_width="fill_parent"
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android:layout_height="wrap_content"/>
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<android.support.v4.view.ViewPager
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android:id="@+id/viewPager3"
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android:layout_width="fill_parent"
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android:layout_height="wrap_content"/>
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<android.support.v4.view.ViewPager
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android:id="@+id/viewPager4"
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android:layout_width="fill_parent"
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android:layout_height="wrap_content"/>
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</LinearLayout>

‎AndroidAnnotations/androidannotations-core/androidannotations-test/src/test/java/org/androidannotations/test/PageChangeListenerActivityTest.java‎

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/**
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* Copyright (C) 2010-2015 eBusiness Information, Excilys Group
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*
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* Licensed under the Apache License, Version 2.0 (the "License"); you may not
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* use this file except in compliance with the License. You may obtain a copy of
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* 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, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations under
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* the License.
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*/
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package org.androidannotations.test;
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import static org.fest.assertions.api.Assertions.assertThat;
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import static org.fest.reflect.core.Reflection.field;
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import static org.robolectric.Robolectric.setupActivity;
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import org.junit.Before;
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import org.junit.Test;
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import org.junit.runner.RunWith;
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import org.robolectric.RobolectricTestRunner;
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import android.support.v4.view.ViewPager;
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@RunWith(RobolectricTestRunner.class)
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public class PageChangeListenerActivityTest {
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private PageChangeListenerActivity_ activity;
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private ViewPager viewPager;
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private ViewPager.OnPageChangeListener listener;
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@Before
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public void setUp() {
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activity = setupActivity(PageChangeListenerActivity_.class);
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}
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private void initViewPager(int viewPagerId) {
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viewPager = (ViewPager) activity.findViewById(viewPagerId);
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listener = field("mOnPageChangeListener").ofType(ViewPager.OnPageChangeListener.class).in(viewPager).get();
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}
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private void assertReadyForTest() {
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assertViewPagerIsNull();
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assertPositionIsNotSet();
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assertPositionOffsetIsNotSet();
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assertPositionOffsetPixelsIsNotSet();
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assertStateIsNotSet();
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}
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private void assertViewPagerIsNull() {
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assertThat(activity.viewPager).isNull();
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}
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private void assertPositionIsNotSet() {
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assertThat(activity.position).isEqualTo(0);
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}
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private void assertPositionOffsetPixelsIsNotSet() {
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assertThat(activity.positionOffsetPixels).isEqualTo(0);
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}
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private void assertPositionOffsetIsNotSet() {
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assertThat(activity.positionOffset).isEqualTo(0f);
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}
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private void assertStateIsNotSet() {
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assertThat(activity.state).isEqualTo(0);
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}
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@Test
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public void handlePageSelected() {
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initViewPager(R.id.viewPager1);
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assertViewPagerIsNull();
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assertPositionIsNotSet();
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int position = 100;
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listener.onPageSelected(position);
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assertThat(activity.viewPager).isEqualTo(viewPager);
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assertThat(activity.position).isEqualTo(position);
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}
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@Test
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public void handlePageScrolled() {
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initViewPager(R.id.viewPager1);
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assertReadyForTest();
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int position = 101;
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float positionOffset = 102f;
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int positionOffsetPixels = 103;
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listener.onPageScrolled(position, positionOffset, positionOffsetPixels);
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assertThat(activity.viewPager).isEqualTo(viewPager);
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assertThat(activity.position).isEqualTo(position);
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assertThat(activity.positionOffset).isEqualTo(positionOffset);
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assertThat(activity.positionOffsetPixels).isEqualTo(positionOffsetPixels);
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}
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@Test
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public void handlePageScrollStateChanged() {
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initViewPager(R.id.viewPager1);
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assertReadyForTest();
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int state = 104;
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listener.onPageScrollStateChanged(state);
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assertThat(activity.viewPager).isEqualTo(viewPager);
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assertThat(activity.state).isEqualTo(state);
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}
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@Test
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public void handleNoPageSelectedParameter() {
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initViewPager(R.id.viewPager2);
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assertReadyForTest();
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listener.onPageSelected(1);
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assertViewPagerIsNull();
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assertPositionIsNotSet();
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}
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@Test
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public void handleNoPageScrolledParameter() {
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initViewPager(R.id.viewPager2);
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assertReadyForTest();
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listener.onPageScrolled(1, 1f, 2);
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assertViewPagerIsNull();
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assertPositionIsNotSet();
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assertPositionOffsetIsNotSet();
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assertPositionOffsetPixelsIsNotSet();
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}
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@Test
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public void handleNoPageScrollStateChangedParameter() {
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initViewPager(R.id.viewPager2);
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assertReadyForTest();
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listener.onPageScrollStateChanged(1);
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assertViewPagerIsNull();
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assertStateIsNotSet();
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}
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@Test
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public void handleAnyOrderPageSelectedParameter() {
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initViewPager(R.id.viewPager3);
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assertReadyForTest();
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int position = 105;
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listener.onPageSelected(position);
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assertThat(activity.viewPager).isEqualTo(viewPager);
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assertThat(activity.position).isEqualTo(position);
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}
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@Test
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public void handleAnyOrderPageScrollStateChangedParameter() {
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initViewPager(R.id.viewPager3);
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assertReadyForTest();
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int state = 106;
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listener.onPageScrollStateChanged(state);
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assertThat(activity.viewPager).isEqualTo(viewPager);
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assertThat(activity.state).isEqualTo(state);
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}
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@Test
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public void handlePageScrollFirstIntBecomesPositionParameter() {
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initViewPager(R.id.viewPager3);
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assertReadyForTest();
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int position = 107;
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listener.onPageScrolled(position, 108f, 109);
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assertViewPagerIsNull();
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assertThat(activity.position).isEqualTo(position);
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assertPositionOffsetIsNotSet();
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assertPositionOffsetPixelsIsNotSet();
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}
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@Test
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public void handleIntAfterPositionOffsetBecomesPositionOffsetPixels() {
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initViewPager(R.id.viewPager4);
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assertReadyForTest();
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float positionOffset = 111f;
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int positionOffsetPixels = 112;
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listener.onPageScrolled(110, positionOffset, positionOffsetPixels);
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assertViewPagerIsNull();
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assertPositionIsNotSet();
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assertThat(activity.positionOffset).isEqualTo(positionOffset);
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assertThat(activity.positionOffsetPixels).isEqualTo(positionOffsetPixels);
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}
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}

‎AndroidAnnotations/androidannotations-core/androidannotations/src/test/java/android/support/v4/view/ViewPager.java‎

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/**
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* Copyright (C) 2010-2015 eBusiness Information, Excilys Group
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*
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* Licensed under the Apache License, Version 2.0 (the "License"); you may not
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* use this file except in compliance with the License. You may obtain a copy of
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* 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, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations under
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* the License.
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*/
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package android.support.v4.view;
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import android.content.Context;
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import android.util.AttributeSet;
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import android.view.View;
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public class ViewPager extends View {
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public ViewPager(Context context) {
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super(context);
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}
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public ViewPager(Context context, AttributeSet attrs) {
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super(context, attrs);
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}
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public ViewPager(Context context, AttributeSet attrs, int defStyle) {
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super(context, attrs, defStyle);
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}
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public void addOnPageChangeListener(OnPageChangeListener listener) {
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}
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public interface OnPageChangeListener {
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void onPageScrollStateChanged(int state);
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void onPageScrolled(int position, float positionOffset, int positionOffsetPixels);
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void onPageSelected(int position);
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}
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}

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